| Entries |
| Document | Title | Date |
|---|
| 20080257306 | Method and apparatus for selecting a combustion mode for an internal combustion engine - A method for selecting a preferred combustion mode for an internal combustion engine operative in a plurality of combustion modes is described. The method includes selecting a combustion mode in terms of first and second engine parameters, and separating the engine operating region into zones defined by the first parameter. Each of the zones is further separated into sub-zones defined by the second parameter. A combustion mode is associated with each of the sub-zones. Operating states are determined for the first and second parameters. One of the zones is identified based upon the state for the first parameter. One of the sub-zones of the identified zone is identified based upon the state for the second parameter, along with a combustion mode associated with the identified sub-zone. The engine is controlled to the preferred combustion mode, depending upon hysteresis. | 10-23-2008 |
| 20090020100 | INTERNAL COMBUSTION ENGINE CONTROL APPARATUS - In order to accurately detect an abnormal state of a rotation direction detection unit for detecting a rotation direction of a crank shaft, provided is an internal combustion engine control apparatus including: a rotation detection unit including the rotation direction detection unit for detecting the rotation direction of the crank shaft of an engine to output a rotation direction signal, and a rotation speed detection unit for outputting a pulse signal according to a rotation speed of the crank shaft; a stop position calculation unit for calculating, based on an output from the rotation detection unit, a stop position of the crank shaft when the engine stops; and an abnormal state detection unit for detecting the abnormal state of the rotation direction detection unit when an actual rotation direction of the crank shaft differs from the rotation direction of the crank shaft based on the rotation direction signal. | 01-22-2009 |
| 20090095255 | METHOD FOR ASSISTING IN STARTING A MOTOR VEHICLE AND CORRESPONDING DEVICE - A method for assisting starting of a motor vehicle by application of engine torque on starting the vehicle. In the method parameters for detection of the starting of the motor vehicle are recorded. A set point for engine management is calculated from a parameter for the driver's command. A torque for assisting the start is determined from the engine management set point. The torque assistance is used on starting the vehicle from zero speed to a non-zero speed and the set point for the engine management is calculated as a function of different values for the moment of inertia of the engine. The change from one first value to a second value is carried out on there being a given difference between the engine management value and the measured value. | 04-16-2009 |
| 20090101108 | METHOD AND DEVICE FOR MONITORING CONTROL AND REGULATING LOOPS IN AN ENGINE SYSTEM - A method for monitoring a control loop or a regulating loop in a system, in particular in an engine system in a motor vehicle, is described. A characteristic value is ascertained from a preset value and a system variable of the regulating loop or the control loop during one or more state changes, and an error is detected as a function of the ascertained characteristic value. | 04-23-2009 |
| 20090114187 | ENGINE TORQUE CONTROL APPARATUS AND ENGINE TORQUE CONTROL METHOD - Disclosed are an engine torque control apparatus and an engine torque control method that can stably control engine torque when a variation of a TPS signal converts from an idle state to a part load state or from the part load state to the idle state in an engine, in which an ISA is installed, thereby resolving a problem on drivability, such as a drop of an engine RPM and resolving a problem on drivability, such as flare of an engine RPM, and improving fuel consumption. | 05-07-2009 |
| 20090126683 | Engine Speed Control Device, a Method for Controlling Engine Speed and an Aircraft Provided Therewith - An engine speed control device comprises an engine speed control lever ( | 05-21-2009 |
| 20090173314 | SPEED CONTROL IN A TORQUE-BASED SYSTEM - An engine control system includes a power module, an air flow module, a torque estimation module, and an air control module. The power module determines a power-based torque based on a desired engine speed. The air flow module determines an air flow value based on the power-based torque. The torque estimation module estimates a desired torque based on the air flow value. The air control module selectively determines a throttle area based on the desired torque. A throttle valve is actuated based on the throttle area. | 07-09-2009 |
| 20090194067 | SERVICE PACK POWER MANAGEMENT - A power management system, in certain aspects, may utilize direct load sensing feedback from the prime mover (e.g., engine), thereby reducing the possibility of overloading the prime mover. The use of direct load sense feedback from the prime mover can then be used with additional feedback, such as prime mover RPM feedback and individual output load sensing feedback, to directly control the output loads and set the primary power sources rpm set-point to better manage the power available and reduce the possibility of overloading the primary power source. | 08-06-2009 |
| 20090199814 | POWER-BASED UNDERSPEED CONTROL - A method of adjusting the operation of an engine-driven machine to avoid engine under-speeding entails converting a received speed or torque command into a power command. When an engine under-speed condition is sensed, the system performs underspeed correction in the power domain before converting the underspeed processed power command back into the units of the original domain. The converted underspeed processed power command is issued to the transmission or other component to alleviate the engine under-speeding condition. | 08-13-2009 |
| 20090293840 | Engine Speed Control System for Work Vehicle - An engine speed control system for a work vehicle is disclosed. Storage means ( | 12-03-2009 |
| 20100006064 | CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE - The object of the present invention is to provide an internal combustion engine control apparatus which can control an internal combustion engine output with a high accuracy even when an internal combustion engine output lower than an unloaded idling equivalent output is demanded. The internal combustion engine of the present invention has an accessory such as a generator driven through an output axis of the engine, an ECU for totally controlling the engine and accessory, and an accessory driving control section for controlling the driving of the accessory. The ECU calculates a target engine output according to a demand from a driver or the like and, when the target engine output is lower than the unloaded idling equivalent output, sends a control signal to the accessory driving control section | 01-14-2010 |
| 20100006065 | INTERNAL COMBUSTION ENGINE CONTROL FOR IMPROVED FUEL EFFICIENCY - A variety of methods and arrangements for improving the fuel efficiency of internal combustion engines are described. Generally, an engine is controlled to operate in a skip fire variable displacement mode. Feedback control is used to dynamically determine the working cycles to be skipped to provide a desired engine output. In some embodiments a substantially optimized amount of air and fuel is delivered to the working chambers during active working cycles so that the fired working chambers can operate at efficiencies close to their optimal efficiency. In some embodiments, the appropriate firing pattern is determined at least in part using predictive adaptive control. By way of example, sigma delta controllers work well for this purpose. In some implementations, the feedback includes feedback indicative of at least one of actual and requested working cycle firings. In some embodiments, the appropriate firings are determined on a firing opportunity by firing opportunity basis. Additionally, in some embodiments, an indicia of the current rotational speed of the engine is used as a clock input for a controller used to selectively cause the skipped working cycles to be skipped. | 01-14-2010 |
| 20100012084 | Controlling A Light-Duty Combustion Engine - A method and system for controlling a light-duty combustion engine and, more particularly, a method and system that use an engine speed governor to limit the engine speed to a level that is less than a clutch-in speed of a centrifugal clutch. If it is determined that an operator is attempting to throttle or accelerate the engine, the engine speed governor is disengaged so that normal operation can commence. | 01-21-2010 |
| 20100012085 | Device and Method for Controlling an Internal Combustion Engine of a Motor Vehicle - A device for controlling an internal combustion engine of a motor vehicle, including a control unit for monitoring and limiting the rotational speed of the internal combustion engine that are designed in such a manner that after a predetermined first speed threshold an integral formation of the current present values over time occurs, and that, on reaching a predetermined integral limit value, the rotational speed is automatically limited. | 01-21-2010 |
| 20100024768 | Internal combustion engine control device - A control device for an internal combustion engine which transmits output to a drive-train via a dual mass flywheel, the control device including: an engine rotational state detecting unit that detects a rotational state of the internal combustion engine; a rotational fluctuation inhibiting unit that executes a process of inhibiting rotational fluctuation for the internal combustion engine when a rotational state that is detected by the engine rotational state detecting unit satisfies a rotational fluctuation inhibiting condition; and a rotational fluctuation inhibiting condition adjusting unit that is adjusts the rotational fluctuation inhibiting condition based on a operating state of the internal combustion engine. | 02-04-2010 |
| 20100101532 | CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE - The present invention relates to a control apparatus for an internal combustion engine. It is an object of the present invention to prevent an excessive reaction of a throttle valve when the throttle valve is driven on the basis of a throttle opening calculated from a plurality of required torques. Step | 04-29-2010 |
| 20100108029 | FUEL SYSTEM DIAGNOSIS VIA FUEL PRESSURE SWITCH - An engine system for a vehicle and its method of operation are provided. In one embodiment, the engine system includes an internal combustion engine; a fuel passage for supplying fuel to the internal combustion engine; a fuel pump arranged along the fuel passage; a fuel filter downstream of the fuel pump; a fuel pressure switch arranged along the fuel passage downstream of the fuel filter, the fuel pressure switch configured to switch to a high pressure state in response to a higher fuel pressure within the fuel passage downstream of the fuel filter and switch to a low pressure state in response to a lower fuel pressure within the fuel passage downstream of the fuel filter; and a control system configured to indicate a clogging of the fuel filter based on a period of time that the fuel pressure switch remains in the low pressure state. | 05-06-2010 |
| 20100122688 | SYSTEM FOR CLOSED-LOOP CONTROL OF COMBUSTION IN ENGINES - A combustion control system includes a magnetic torque sensor disposed between an engine and a load. The magnetic torque sensor is configured to directly measure engine torque and output a torque signal indicative of the engine torque. A control unit is communicatively coupled to the magnetic torque sensor. The control unit is configured to receive the torque signal and determine one or more combustion parameters based on the torque signal. The control unit is also configured to control one or more manipulating parameters of the engine based on the one or more combustion parameters so as to control combustion in the engine. | 05-20-2010 |
| 20100126464 | METHOD AND DEVICE FOR CONTROLLING AN AFTERGLOW TEMPERATURE IN A DIESEL COMBUSTION ENGINE - A method and a device for setting an afterglow temperature in a self-igniting internal combustion engine, the afterglow temperature being reduced in a defined operating state of the internal combustion engine until a modification of an operating parameter as a result of the reduction of the afterglow temperature is required in order to maintain the defined operating state, in particular in order to maintain the injected fuel quantity. | 05-27-2010 |
| 20100132665 | Method for Controlling as well as Method for Reducing Engine Speed - The motion of a piston in an engine is braked, for example, within the scope of a method for controlling the engine speed, in that ignition takes place prior to a predetermined optimum ignition point. In this way, more than half of the fuel burns before the piston reaches top dead center. Thus, before the actual stroke of performing work, the motion of the piston is opposed and the piston and thus the crankshaft are braked. | 06-03-2010 |
| 20100180862 | ENGINE REVOLUTION SPEED CONTROL SYSTEM FOR CONSTRUCTION MACHINE - An engine revolution speed control system for a construction machine is disclosed. The engine revolution speed control system includes an input unit that sets an engine revolution speed by a user, outputs a setting process as a set signal, and determines whether or not an engine is driven at a set engine revolution speed; a control unit that receives the set signal and stores the set engine revolution speed, receives the set signal and an ON/OFF signal to output an output signal corresponding to the received set signal and the ON/OFF signal, and controls operation of the engine at the set engine revolution speed in accordance with the ON/OFF signal; and a display that receives the output signal to visually output the setting process or whether or not the engine is driven at the set engine revolution speed. | 07-22-2010 |
| 20100186712 | MOTOR VEHICLE AND OPERATING METHOD FOR AN INTERNAL COMBUSTION ENGINE - A motor vehicle, in particular a passenger car, has an internal combustion engine and an engine control unit. In order to avoid insufficient lubrication, the engine control unit is configured and/or programmed in such a way that it reduces a rotational speed of the internal combustion engine if a predetermined maximum lateral acceleration of the vehicle is present for longer than a predetermined maximum time period. | 07-29-2010 |
| 20100186713 | ENGINE CONTROL APPARATUS - An engine control apparatus includes an engine target speed set unit 51 setting a first target speed through a throttle dial, a relief engine maximum speed calculation unit 52 calculating a second target speed limiting a maximum target speed in a relief operation according to a load pressure of a hydraulic pump, a speed control means controlling an engine speed such that the engine speed is equal to lower one of the first target speed and the second target speed, a determination means determining whether an engine torque assist action of a generator motor is performed, based on a deviation between an target speed and a real speed of the engine. When the determination means determines that the engine torque assist action is performed, the speed control means controls the engine speed to be equal to the target speed through the engine torque assist action of the generator motor. | 07-29-2010 |
| 20100192907 | Engine droop governor and method - A machine ( | 08-05-2010 |
| 20100269786 | LOAD CONDITION DETECTION APPARATUS FOR GENERAL-PURPOSE ENGINE - In an apparatus for detecting condition of load connected to a general-purpose internal combustion engine, a first threshold value is compared with a sum obtained by adding a predetermined value to a detected throttle opening and changes the threshold value to the sum if the first threshold value is less than the sum and the engine is determined to be under first load condition if the throttle opening exceeds the threshold value. Next a second threshold value is compared with a difference obtained by subtracting change amounts of the engine speed and throttle opening and the engine is determined to be under second load condition if the difference exceeds the second threshold value, thereby enabling to accurately detect a condition of a load connected to the engine. Then the desired engine speed is changed in response to results of the determinations. | 10-28-2010 |
| 20100282209 | SPEED LIMITER SYSTEM - A vehicle speed limiter is described, for use with, and for example fitted to, a vehicle throttle system ( | 11-11-2010 |
| 20100288230 | Engine Combustion Air Cyclonic Pre-Cleaner Embodying Throttling Member Adjusted In Accordance With Engine Load - An engine combustion air pre-cleaner includes a body shaped for effecting cyclonic air flow between an inlet and an outlet of the body. Located along a longitudinal axis of the body is a conical throttling member which is coupled to a control device which operates in response to increasing engine load, as represented by increasing boost pressure, torque and/or speed, to shift the throttling member so as to cause an increasing air flow with increasing engine load. | 11-18-2010 |
| 20100313849 | Fault Detection and Mitigation in Hybrid Drive System - Fault detection and response systems and processes can be used for pumps, e.g., pump/motors used in hybrid vehicles. The fault detection systems determine when certain operating conditions, which may affect the proper operation of the system, occur. The response systems take appropriate action based on which fault conditions are triggered. Example fault detection systems and processes include detection systems for different types of leaks, sensor malfunctions, or operation errors. | 12-16-2010 |
| 20110017171 | CONTROL SYSTEM FOR INTERNAL COMBUSTION ENGINE - A control system for an internal combustion engine having a plurality of cylinders including first and second cylinder groups. The first and second intake systems correspond respectively to the first and second cylinder groups, and first and second throttle valves are provided respectively in the first and second intake systems. An output of the engine is reduced upon deceleration of a vehicle driven by the engine. A pressure parameter indicative of an assisting force generated by a brake booster is detected. An intake negative pressure is supplied to the brake booster from the first and second intake systems. One of the first and second throttle valves is opened to increase the engine output when the pressure parameter is equal to or less than a first threshold value which indicates that the assisting force of the brake booster has decreased. | 01-27-2011 |
| 20110048372 | System and Methods for Stoichiometric Compression Ignition Engine Control - The present invention relates to a diesel engine control system and methods for substantially operating a diesel engine at stoichiometric fuel to air ratios. The system may include a fuel processor which receives instructions for a desired engine output and current operating conditions. The fuel processor may also generate fueling instructions for the cylinders, including: substantially regulating fuel delivery into to a first group of cylinders at or near stoichiometric fuel levels, and substantially disabling fuel injection into to a second grouping of cylinders. The number of cylinders being fueled, and therefore undergoing a combustion event corresponds to the desired engine output. This may be calculated by dividing the desired output by the power provided by one cylinder operating at substantially stoichiometric fuel levels. The number of cylinders receiving fuel may be varied over a succession of engine revolutions such that the actual average engine power output conforms to the desired output. | 03-03-2011 |
| 20110088659 | SYSTEM AND METHOD FOR CONTROLLING TORQUE DURING ENGINE START OPERATIONS IN HYBRID VEHICLES - A control system for a hybrid vehicle that includes an internal combustion engine and an electric motor includes an engine speed control module, an air pressure control module, and an engine torque control module. The engine speed control module increases engine speed during a first calibration period based on a driver torque request and a predetermined torque threshold. The air pressure control module decreases intake manifold pressure (MAP) of the engine during a second calibration period based on the driver torque request and the predetermined torque threshold. The engine torque control module starts the engine during a period after the first and second calibration periods by activating N of M cylinders of the engine, wherein N is based on the driver torque request and the predetermined torque threshold. | 04-21-2011 |
| 20110120415 | CONTROL APPARATUS AND METHOD OF CONTROLLING INTERNAL COMBUSTION ENGINE MOUNTED ON VEHICLE - When an engine shifts to idle operation in a process of stopping an automobile, a target engine speed of an engine idle speed control is reduced and a threshold engine speed of an engine speed reduction prevention control is also reduced accordingly, provided that the automobile is traveling on a road surface with low friction coefficient. | 05-26-2011 |
| 20110146622 | CONTROL SYSTEM AND METHOD FOR LIMITING ENGINE TORQUE BASED ON ENGINE OIL PRESSURE AND ENGINE OIL TEMPERATURE DATA - A control system ( | 06-23-2011 |
| 20110253099 | MULTI-PHASE ENGINE STOP POSITION CONTROL - A method is provided for controlling engine stop position in a vehicle having an engine with auto stop/auto start functionality. The method includes automatically ramping down engine speed upon initiation of an auto stop event, executing closed-loop speed control of the engine when the engine speed begins to ramp down, and for as long as the engine speed remains above a threshold engine speed while ramping down the engine speed; executing closed-loop position control of the engine while ramping down the engine speed once the engine speed is less than the threshold engine speed and greater than zero; and stopping the crankshaft to within a calibrated range of a targeted engine stop position. A controller is also provided that includes a hardware module and an algorithm adapted for executing the foregoing method, and a vehicle is provided having an engine with auto stop/start functionality and the controller noted above. | 10-20-2011 |
| 20120067327 | TORQUE LIMITING ENGINE LUBRICATION PROTECTION SYSTEM - A lubrication torque limit module includes a temperature module that determines a temperature of an engine and generates an engine temperature signal. A limit module generates a torque limit signal based on the temperature signal and a speed of the engine. The torque limit signal identifies an indicated torque maximum limit. A torque arbitration module limits indicated torque of the engine based on the indicated torque maximum limit. The indicated torque of the engine is equal to an unmanaged brake torque of the engine plus an overall friction torque of the engine. | 03-22-2012 |
| 20120085318 | CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE - A control device for an internal combustion engine provided by the present invention is a control device which can satisfy both a requirement relating to exhaust gas performance of the internal combustion engine and a requirement relating to operation performance by properly regulating a change speed of a required air-fuel ratio, in the internal combustion engine which uses torque and an air-fuel ratio as control variables. The control device receives the requirement relating to the exhaust gas performance of the internal combustion engine, and calculates an air-fuel ratio which satisfies the requirement as a required air-fuel ratio. When a predetermined reduction condition is not satisfied, an original required air-fuel ratio is directly determined as a final required air-fuel ratio. However, when the reduction condition is satisfied, the change speed is reduced by processing the signal of the original required air-fuel ratio, and determines the required air-fuel ratio with the change speed reduced as the final required air-fuel ration. The reduction condition includes a condition that the change amount of the original required air-fuel ratio, in more detail, a change amount per calculation period is larger than a predetermined air-fuel ratio change determination value. | 04-12-2012 |
| 20120240898 | INTEGRATED PLASTIC THROTTLE BODY, ELECTRONIC CONTROL UNIT, AND SENSORS FOR SMALL ENGINE - An electronic control assembly for a throttle body includes a lower housing portion having a plurality of apertures formed therethrough, a circuit board disposed adjacent at least a portion of the lower housing portion, a pressure sensor disposed adjacent the lower housing portion and electrically coupled to the circuit board, wherein a sensing portion of the pressure sensor extends into a first one of the apertures formed in the lower housing portion, a temperature sensor disposed adjacent the lower housing portion and electrically coupled to the circuit board, wherein a sensing portion of the temperature sensor extends into a second one of the apertures formed in the lower housing portion, and an upper housing portion coupled to the throttle body and cooperating with the lower housing portion to substantially enclose the circuit board, the pressure sensor, and the temperature sensor. | 09-27-2012 |
| 20120318235 | CONTROL SYSTEM AND METHOD FOR COORDINATING THROTTLE AND BOOST - An engine control system according to the principles of the present disclosure includes a manifold air pressure (MAP) determination module, a boost control module, and a throttle control module. The MAP determination module determines a desired MAP based on a driver torque request. The boost control module controls a boost device based on the desired MAP and a basic boost pressure. The boost device is actuated using boost pressure and the boost pressure is insufficient to actuate the boost device when the boost pressure is less than the basic boost pressure. The throttle control module controls a throttle valve based on the desired MAP and the basic boost pressure. | 12-20-2012 |
| 20130139788 | FUEL DRIFT ESTIMATION AND COMPENSATION FOR OPERATION OF AN INTERNAL COMBUSTION ENGINE - Methods and systems are disclosed for fuel drift estimation and compensation using exhaust oxygen levels and fresh air flow measurements. An actual fueling to the engine cylinders is determined from the exhaust oxygen level and fresh air flow to the internal combustion engine. The actual fueling is compared to an expected fueling based on the fueling command provided to the internal combustion engine. The difference between the actual fueling and expected fueling is fuel drift error attributed to changes or drift in the fuel injection system and is used to correct or compensate future fueling commands for the fuel drift. | 06-06-2013 |
| 20130220274 | CONTROL SYSTEM FOR DUAL FUEL ENGINES - A control system for operation of a dual fuel engine is disclosed wherein the engine is operated by a liquid fuel and a gaseous fuel at varying loads and engine speeds. The control system has a first sensor and a second sensor for sensing intake manifold pressures of the engine and pressures of the liquid fuel respectively. A speed sensing means is provided to generate signals corresponding to engine speeds and varying loads. A liquid fuel actuator and a gaseous fuel actuator are provided to induct the liquid fuel and the gaseous fuel into the engine respectively. | 08-29-2013 |
| 20130255625 | SYSTEM AND METHOD FOR CONTROLLING ENGINE SPEED - A system according to the principles of the present disclosure includes a gain determination module, a desired torque determination module, and an engine operation control module. The gain determination module determines a gain based on a desired speed of an engine and a change rate of an actual speed of the engine. The desired torque determination module determines a desired torque based on the gain and a difference between the actual speed and the desired speed. The engine operation control module controls at least one of a throttle area, a spark timing, and a fueling rate based on the desired torque. | 10-03-2013 |
| 20130255626 | CONTROL OF A PARTIAL CYLINDER DEACTIVATION ENGINE - A variety of methods and arrangements for managing transitions between operating states for an engine are described. In one aspect, an engine is operated in a particular operating state. A transition is made to another operating state. During that transition, the engine is operated in a skip fire manner. | 10-03-2013 |
| 20130255627 | SUPERCHARGER WITH CONTINUOUSLY VARIABLE DRIVE SYSTEM - An engine system includes a throttle valve configured to variably open and close to selectively restrict a volume of air flow. The engine system also includes a supercharger comprising an air inlet, an air outlet, a rotatable drive shaft and rotors associated with the drive shaft, wherein the supercharger is sized to have a flow rate that substantially prevents backwards leaking of air flow. The engine system further includes a combustion engine comprising combustion chambers and an associated rotatable crank shaft and a continuously variable transmission (CVT) configured to variably transfer rotational energy between the drive shaft and the crank shaft. | 10-03-2013 |
| 20130276750 | RPM CONTROL DEVICE AND RPM CONTROL METHOD FOR A GENERAL-PURPOSE ENGINE - Provided is an rpm control device for a general-purpose engine, which is capable of realizing droop control in a spark-ignition engine only by the adaptation of isochronous control. When the droop control is selected, a rotation decrease rate (K) (value equal to or smaller than 1) is obtained from an engine rpm and a load. The result of multiplication of a basic target rpm (Nb) requested by a driver by the rotation decrease rate (K) is obtained as a target rpm (No). By setting the rotation decrease rate to a smaller value as the load becomes higher, the target rpm (No) is set smaller than the basic target rpm (Nb). The isochronous control is performed by using an electronic throttle so as to achieve the obtained target rpm (No) to realize the droop control in a pseudo-manner. | 10-24-2013 |
| 20130291830 | METHODS AND SYSTEMS FOR ENGINE STARTING DURING A SHIFT - Systems and methods for improving operation of a hybrid vehicle are presented. In one example, torque demand of a driveline after a shift is forecast to determine if it is desirable to start the engine early so that engine torque is available after the shift. The approach may improve vehicle torque response. | 11-07-2013 |
| 20140041626 | DRIVE TRAIN SLIP FOR VIBRATION MITIGATION DURING SKIP FIRE OPERATION - A variety of methods and devices for mitigating power train vibration during skip fire operation of an engine are described. In one aspect, the slip of a drive train component (such as a torque converter clutch) is based at least in part upon a skip fire characteristic (such as firing fraction, selected firing sequence/pattern, etc.) during skip fire operation of an engine. The modulation of the drive train component slip can also be varied as a function of one or more engine operating parameters such as engine speed and/or a parameter indicative of the output of fired cylinders (such as mass air charge). | 02-13-2014 |
| 20140041627 | CONTROL DEVICE AND CONTROL METHOD FOR INTERNAL COMBUSTION ENGINE - An electronic control unit ( | 02-13-2014 |
| 20140053802 | CYLINDER DEACTIVATION PATTERN MATCHING - A cylinder control module: selects one of N predetermined cylinder activation/deactivation patterns as a desired cylinder activation/deactivation pattern for cylinders of an engine, wherein N is an integer greater than two; and activates and deactivates opening of intake and exhaust valves of first and second ones of the cylinders that are to be activated based on the desired cylinder activation/deactivation pattern, respectively. A fuel control module provides fuel to the first ones of the cylinders and disables fueling to the second ones of the cylinders. The cylinder control module further: determines M possible ones of the N cylinder activation/deactivation patterns, wherein M is an integer greater than or equal to one; selectively compares the M possible cylinder activation/deactivation patterns with the desired cylinder activation/deactivation pattern; and selectively updates the desired cylinder activation/deactivation pattern to one of the M possible cylinder activation/deactivation patterns. | 02-27-2014 |
| 20140053803 | SYSTEM AND METHOD FOR DEACTIVATING A CYLINDER OF AN ENGINE AND REACTIVATING THE CYLINDER BASED ON AN ESTIMATED TRAPPED AIR MASS - A system according to the principles of the present disclosure includes a cylinder activation module and a spark control module. The cylinder activation module selectively deactivates and reactivates a cylinder of an engine. The cylinder activation module deactivates the cylinder after intake air is drawn into the cylinder and before fuel is injected into the cylinder or spark is generated in the cylinder. When the cylinder is reactivated, the spark control module selectively controls a spark plug to generate spark in the cylinder before an intake valve or an exhaust valve of the cylinder is opened. | 02-27-2014 |
| 20140053804 | CYLINDER ACTIVATION AND DEACTIVATION CONTROL SYSTEMS AND METHODS - A ranking module determines N ranking values for N predetermined cylinder activation/deactivation sequences of an engine, respectively. N is an integer greater than or equal to two. A cylinder control module, based on the N ranking values, selects one of the N predetermined cylinder activation/deactivation sequences as a desired cylinder activation/deactivation sequence for cylinders of the engine. The cylinder control module also: activates opening of intake and exhaust valves of first ones of the cylinders that are to be activated based on the desired cylinder activation/deactivation sequence; and deactivates opening of intake and exhaust valves of second ones of the cylinders that are to be deactivated based on the desired cylinder activation/deactivation sequence. A fuel control module provides fuel to the first ones of the cylinders and disables fueling to the second ones of the cylinders. | 02-27-2014 |
| 20140053805 | SYSTEM AND METHOD FOR CONTROLLING SPARK TIMING WHEN CYLINDERS OF AN ENGINE ARE DEACTIVATED TO REDUCE NOISE AND VIBRATION - A system according to the principles of the present disclosure includes a cylinder activation module and a spark timing module. The cylinder activation module selectively deactivates and reactivates a cylinder of an engine based on a driver torque request. When the cylinder is deactivated, the spark timing module selectively increases an amount by which spark timing of at least one active cylinder of the engine is retarded based on noise and vibration generated by the engine when the cylinder is deactivated. | 02-27-2014 |
| 20140060486 | ENGINE CONTROL SYSTEM - In a system, a signal output module produces pulses based on rotation of a crankshaft, and outputs a signal having the pulses. A pattern of the pulses shows at least one reference portion of the crankshaft to which the position of at least one cylinder is relative. A reference portion detector performs a reference portion detecting task that detects, based on the pulse pattern of the signal while a rotational direction of the crankshaft is a predetermined direction, the at least one reference portion of the crankshaft. A reverse rotation predicting module predicts whether rotation of the crankshaft in the predetermined direction will be reversed. A disabling module disables the reference portion detector from performing the reference portion detecting task if the reverse rotation predicting module predicts that rotation of the crankshaft in the predetermined direction will be reversed. | 03-06-2014 |
| 20140069373 | INTERNAL COMBUSTION ENGINE SYSTEM FOR INDUSTRIAL APPLICATIONS - Methods, systems, and apparatuses are enclosed for an internal combustion engine system for industrial applications. | 03-13-2014 |
| 20140069374 | AIR MASS DETERMINATION FOR CYLINDER ACTIVATION AND DEACTIVATION CONTROL SYSTEMS - A system includes a cylinder event module that determines an air-per-cylinder value for a cylinder intake event or a cylinder non-intake event of a current cylinder based on a mass air flow signal and an engine speed signal. A status module generates a status signal indicating whether the current cylinder is activated. A deactivation module, based on the status signal, determines a current accumulated air mass in an intake manifold of an engine: for air received by the intake manifold since a last cylinder intake event of an activated cylinder and prior to one or more consecutive cylinder non-intake events of one or more deactivated cylinders; and based on a previous accumulated air mass in the intake manifold and the air-per-cylinder value. An activation module, based on the status signal, determines an air mass value for the current cylinder based on the air-per-cylinder value and the current accumulated air mass. | 03-13-2014 |
| 20140069375 | AIR PER CYLINDER DETERMINATION SYSTEMS AND METHODS - A cylinder control system of a vehicle includes a cylinder control module and an air per cylinder (APC) prediction module. The cylinder control module determines a desired cylinder activation/deactivation sequence. The cylinder control module also activates and deactivates valves of cylinders of an engine based on the desired cylinder activation/deactivation sequence. The APC prediction module predicts an amount of air that will be trapped within a next activated cylinder in a firing order of the cylinders based on a cylinder activation/deactivation sequence of the last Q cylinders in the firing order. Q is an integer greater than one. | 03-13-2014 |
| 20140069376 | INTAKE PORT PRESSURE PREDICTION FOR CYLINDER ACTIVATION AND DEACTIVATION CONTROL SYSTEMS - A system includes a parameter module that determines at least one of a position of a throttle and a load of an engine. A cylinder status module generates a status signal indicating an activation status of each cylinder of the engine. The cylinder status module determines whether one or more of the cylinders are activated. A first pressure prediction module, when all of the cylinders are activated, predicts first intake port pressures for the cylinders of the engine according to a first model and based on the at least one of the position of the throttle and the engine load. A second pressure prediction module, when one or more of the cylinders is deactivated, predicts second intake port pressures for the deactivated cylinders according to a second model and based on the status signal and the at least one of the position of the throttle and the engine load. | 03-13-2014 |
| 20140069377 | VOLUMETRIC EFFICIENCY DETERMINATION SYSTEMS AND METHODS - A cylinder control system of a vehicle, includes a cylinder control module and a volumetric efficiency (VE) module. The cylinder control module determines a desired cylinder activation/deactivation sequence. The cylinder control module also activates and deactivates valves of cylinders of an engine based on the desired cylinder activation/deactivation sequence. The VE module determines a volumetric efficiency based on a cylinder activation/deactivation sequence of the last Q cylinders in the firing order. Q is an integer greater than one. | 03-13-2014 |
| 20140069378 | EFFECTIVE CYLINDER COUNT CONTROL SYSTEMS AND METHODS - Based on a desired average number of activated cylinders per sub-period of a predetermined period including P sub-periods, a cylinder control module selects one of N predetermined cylinder activation/deactivation patterns. The selected cylinder activation/deactivation pattern corresponds to Q activated cylinders per sub-period, Q is an integer between zero and a total number of cylinders of an engine, inclusive, P is an integer greater than one, and the desired average number of active cylinders is a number between zero and the total number of cylinders of the engine. The cylinder control module also determines an adjusted cylinder activation/deactivation pattern based on the selected predetermined cylinder activation/deactivation pattern, generates a desired cylinder activation/deactivation pattern for the predetermined period using the selected predetermined cylinder activation/deactivation pattern during a first number of the P sub-periods and using the adjusted cylinder activation/deactivation pattern during a second number of the P sub-periods. | 03-13-2014 |
| 20140069379 | RECURSIVE FIRING PATTERN ALGORITHM FOR VARIABLE CYLINDER DEACTIVATION IN TRANSIENT OPERATION - A cylinder control module generates a desired cylinder activation/deactivation sequence for a future period based on Q predetermined cylinder activation/deactivation sub-sequences used during a previous period, a desired number of cylinders to be activated during a predetermined period including the previous and future periods, and an operating condition. Q is an integer greater than zero. The cylinder control module activates and deactivates opening of intake and exhaust valves of first and second ones of the cylinders that are to be activated and deactivated based on the desired cylinder activation/deactivation sequence, respectively. A fuel control module provides and disables fuel to the first and second ones of the cylinders, respectively. | 03-13-2014 |
| 20140083393 | METHODS FOR CONTROLLING ENGINE IDLE SPEED - The present technology provides one or more methods of operating an engine in a motor vehicle. In at least one embodiment, the existence of an engine idle condition is determined. The method may also include determining whether an operator is present in the vehicle. In some embodiments, the engine operates at a performance idle speed when an engine idle condition exists and an operator is present in the vehicle. In further embodiments, the engine operates at a fuel economy idle speed when an idle condition exists and no operator is present in the vehicle. In still further embodiments, the fuel economy idle speed will be lower than the performance idle speed. The present technology anticipates engine workload and controls engine idle speeds. Based on the anticipated workloads, the present technology can reduce engine stalling while also reducing emissions and increasing fuel economy. | 03-27-2014 |
| 20140090623 | CYLINDER ACTIVATION/DEACTIVATION SEQUENCE CONTROL SYSTEMS AND METHODS - A target cylinder count module determines a target number of cylinders of an engine to be activated during a future period. The future period includes N sub-periods, and N is an integer greater than one. Based on the target number, a first sequence setting module generates a sequence indicating N target numbers of cylinders to be activated during the N sub-periods, respectively. A second sequence setting module retrieves N predetermined sequences for activating and deactivating cylinders during the N sub-periods, respectively, and generates a target sequence for activating and deactivating cylinders during the future period based on the N predetermined sequences. During the future period, a cylinder actuator module: activates opening of intake and exhaust valves of the cylinders that are to be activated based on the target sequence; and deactivates opening of intake and exhaust valves of the cylinders that are to be deactivated based on the target sequence. | 04-03-2014 |
| 20140102411 | SYSTEM AND METHOD FOR CONTROLLING A FIRING PATTERN OF AN ENGINE TO REDUCE VIBRATION WHEN CYLINDERS OF THE ENGINE ARE DEACTIVATED - A system according to the principles of the present disclosure includes a vibration characteristics module and a firing pattern module. The vibration characteristics module, for a first plurality of firing patterns of an engine when a cylinder of the engine is deactivated, stores vibration characteristics associated with at least one of an amplitude, a frequency, and a phase of vibration at a driver interface component resulting from the first plurality of firing patterns. The firing pattern module selects a firing pattern from a second plurality of firing patterns and executes the firing pattern when the vibration characteristics associated with the selected firing pattern satisfies predetermined criteria. | 04-17-2014 |
| 20140109869 | CONTROL DEVICE AND METHOD FOR INTERNAL COMBUSTION ENGINE - Provided is a control unit ( | 04-24-2014 |
| 20140116380 | SYSTEMS AND METHODS FOR OPTIMIZATION AND CONTROL OF INTERNAL COMBUSTION ENGINE STARTING - An engine starting system and technique include selecting a target engine speed profile from a plurality of engine speed profiles based on operator inputs and operating parameters of the vehicle. A feedback control strategy is used to substantially conform the engine speed with the target speed profile during starting until a target speed is reached in which fueling is initiated to start the engine. | 05-01-2014 |
| 20140123941 | METHOD AND SYSTEM FOR VACUUM GENERATION - Methods and systems are provided for improving the vacuum generation efficiency of an ejector coupled to in an engine system. Vacuum is generated at the ejector at a faster rate but to a lower level by opening a throttle upstream of the ejector. Vacuum is then raised to a higher level but at a slower rate by closing the throttle upstream of the ejector. | 05-08-2014 |
| 20140165963 | Hydraulic Engine with One or More of Improved Transmission Control, Valve, and Fuel Injection Features - An internal combustion engine and method of operating such an engine are disclosed. In some embodiments, a process governed by a controller determines an effective gear ratio of a variable-displacement hydrostatic drive motor and engine combustion events so that an output velocity tends to meet a desired velocity indicated by an accelerator pedal. Also, in some embodiments, the engine includes one or more of: (a) one or more active check valves governing hydraulic fluid flow into or out of one or more cylinders; (b) a free-wheeling section allowing for hydraulic fluid exiting a load (e.g., the drive motor) to proceed back to a link by which the fluid is driven by the engine to the load; and (c) a perforated cone fuel atomizer associated with an intake valve. Further, in some embodiments, two or more of the pairs of cylinders are hydraulically coupled in parallel relative to one another. | 06-19-2014 |
| 20140190448 | INTAKE RUNNER TEMPERATURE DETERMINATION SYSTEMS AND METHODS - An engine control system of a vehicle includes a manifold temperature module, a runner temperature module. The manifold temperature module determines a first temperature of gas in an intake manifold of an engine. The runner temperature module determines a second temperature of gas in an intake runner associated with a cylinder based on the first temperature of the gas in the intake manifold. The engine control system further includes at least one of: a fuel control module that controls fueling of the cylinder based on the second temperature of the gas in the intake runner; and a spark control module that controls spark of the cylinder based on the second temperature of the gas in the intake runner. | 07-10-2014 |
| 20140202427 | ENGINE SYSTEM CONTROL RESPONSIVE TO OXYGEN CONCENTRATION ESTIMATED FROM ENGINE CYLINDER PRESSURE - Methods of engine system control responsive to oxygen concentration estimated from engine cylinder pressure. | 07-24-2014 |
| 20140261317 | MISFIRE DETECTION SYSTEM - A variety of methods and arrangements for detecting misfire in a skip fire engine control system are described. In one aspect, a window is assigned to a target firing opportunity for a target working chamber. A change in an engine parameter is measured during the window. A determination is made as to whether a firing opportunity before the target firing opportunity is a skip or a fire and/or whether a firing opportunity after the target firing opportunity is a skip or a fire. Based at least in part on this skip/fire determination, a determination is made as to whether the target working chamber has misfired. In various embodiments, if the target working chamber is identified as persistently misfiring, the firing sequence is modified so that the target working chamber is deactivated and excluded from the firing sequence. In still other embodiments, a torque model is used to detect engine-related problems. | 09-18-2014 |
| 20140283784 | CONTROL DEVICE OF SPARK-IGNITION ENGINE - A control device of a spark-ignition engine is provided. The control device includes a main body of the engine, a fuel injection valve, an ignition plug, and a controller. According to an engine operating state, the controller switches between a compression-ignition mode in which compression-ignition combustion is performed, and a spark-ignition mode in which spark-ignition combustion is performed. The controller switches from the spark-ignition mode to the compression-ignition mode by performing in order, a first stage where an air-fuel ratio of mixture gas is set to a predetermined value and the spark-ignition combustion is performed, a second stage where the air-fuel ratio of the mixture gas is set leaner than the first stage and the compression-ignition combustion is performed, and a third stage where the air-fuel ratio of the mixture gas is set richer than the second stage and the compression-ignition combustion is performed. | 09-25-2014 |
| 20140283785 | CONTROL DEVICE OF SPARK-IGNITION ENGINE - A control device of a spark-ignition engine is provided. The control device includes a main body of the engine, a fuel injection valve, an ignition plug, and a controller. According to an operating state of the engine, the controller switches an ignition mode between a compression-ignition mode in which compression-ignition combustion is performed by causing the mixture gas to self-ignite and combust, and a spark-ignition mode in which spark-ignition combustion is performed by igniting the mixture gas with the ignition plug to combust. The controller switches the ignition mode from the spark-ignition mode to the compression-ignition mode by performing a transition mode in which a temperature inside the cylinder is forcibly decreased and combustion is performed. | 09-25-2014 |
| 20140352659 | METHODS AND SYSTEMS FOR CYLINDER BANK MISFIRE DETECTION AND REACTIVATION - Various systems and methods are described for deactivation and reactivation of a cylinder bank in a V-engine. In one example, the cylinder bank is deactivated responsive to an indication of misfire based on crankshaft acceleration and exhaust air fuel ratio. The cylinder bank is reactivated sequentially based on exhaust catalyst temperature. | 12-04-2014 |
| 20140360464 | INTERNAL COMBUSTION ENGINE CONTROL DEVICE - In an internal combustion engine control device, a predetermined margin torque is set such that it is possible to maintain a predetermined engine idling speed by adjusting ignition timing with respect to load fluctuations during idling operation. The margin torque is set to decrease, as a load, acting on the internal combustion engine during idling operation, increases. Accordingly, the margin torque can be set to an appropriate value, and thus it is possible to improve a fuel economy performance during idling operation of the internal combustion engine. | 12-11-2014 |
| 20150013640 | INTERNAL COMBUSTION ENGINE CONTROL APPARATUS - There is provided an internal combustion engine control apparatus including an exhaust gas recirculation amount estimation unit that can estimate an EGR flow rate with an accuracy enough to appropriately control an internal combustion engine. An internal combustion engine control apparatus according to the present invention has an exhaust gas recirculation amount estimation unit that learns the relationship between a detected opening degree of an exhaust gas recirculation valve and a calculated effective opening area of the exhaust gas recirculation valve and estimates an exhaust gas recirculation amount, based on the relationship between a control exhaust gas recirculation valve effective opening area calculated based on the learning and an opening degree of the exhaust gas recirculation valve; for controlling an internal combustion engine, the internal combustion engine control apparatus utilizes the exhaust gas recirculation amount estimated by the exhaust gas recirculation amount estimation unit. | 01-15-2015 |
| 20150034046 | ENGINE - An engine of the invention includes an engine main unit having cylinders, an intake line, an exhaust line, a supercharger, a turbo sensor detecting a rotational speed of the supercharger, a control device controlling, based on signal from the turbo sensor, an operating state of the engine main unit that has a correlation with the rotational speed of the supercharger, and a crank angle sensor detecting a rotation angle of a crankshaft. The control device recognizes timings at which the cylinders are in a top dead center state based on detection signals of the crank angle sensor and, also, makes a disconnection judgment for the turbo sensor at non-top dead center timings that are within one combustion cycle of the engine main unit and at which none of the plurality of cylinders are in a top dead center state. | 02-05-2015 |
| 20150047603 | METHOD FOR ESTIMATING CHARGE AIR COOLER CONDENSATION STORAGE AND/OR RELEASE WITH AN INTAKE OXYGEN SENSOR - Methods and systems are provided for estimating water storage in a charge air cooler (CAC). In one example, an amount of water in charge air exiting the CAC may be based on an output of an oxygen sensor positioned downstream of the CAC. Further, engine actuators may be adjusted to increase combustion stability and/or reduce condensate formation based on the amount of water exiting the CAC. | 02-19-2015 |
| 20150053175 | METHOD AND DEVICE FOR CONTROLLING MULTI-CYLINDER ENGINE - A control device of a multi-cylinder engine is provided. The device includes first and second auxiliary components. The first auxiliary component generates energy. The device includes an angular speed variation detecting device for detecting an angular speed variation of a crankshaft, and an auxiliary component control device for controlling drive loads of the first and second auxiliary components. When an engine load is low and the angular speed variation exceeds a predetermined threshold, the auxiliary component control device increases a total drive load of the auxiliary components. Here, if the drive load of the first auxiliary component is increasable, the drive load of the first auxiliary component is increased, and when this increase amount is insufficient, the drive load of the second auxiliary component is increased, whereas if the drive load of the first auxiliary component is not increasable, the drive load of the second auxiliary component is increased. | 02-26-2015 |
| 20150059692 | SPEED CONTROLLER AND METHOD FOR IMPROVING THE TRANSIENT STATE OF A SPEED CONTROLLER - A speed regulator | 03-05-2015 |
| 20150075493 | METHOD AND SYSTEM FOR CONTROLLING ALTERNATOR VOLTAGE DURING A REMOTE ENGINE START EVENT - A method and system for controlling alternator voltage during a remote engine start (“RES”) event is provided. The method includes receiving an RES command into at least one control unit of the system. The method further includes starting an engine in response to receiving the RES command and operating an alternator in a first voltage mode where the alternator is operating at a first voltage V1 to charge a vehicle battery. The method further includes detecting a brake pedal has been pressed with a brake switch. The method further includes operating the alternator in a second voltage mode where the alternator is operating at a second voltage V2, which is less than the first voltage V1, to charge the vehicle battery based on detecting the brake pedal has been pressed. | 03-19-2015 |
| 20150083079 | METHODS AND SYSTEMS FOR SELECTIVE ENGINE STARTING - Systems and methods for starting an engine are described. In one example, engine cranking speed for an engine of a hybrid vehicle is adjusted in response to operating conditions. The engine cranking speed may be reduced when capability of a battery that supplies power to rotate the engine is less than an amount of power to rotate the engine at a higher speed. | 03-26-2015 |
| 20150107554 | SYSTEM AND METHOD FOR CONTROLLING AN ENGINE BASED ON AN OXYGEN STORAGE CAPABILITY OF A CATALYTIC CONVERTER - A system according to the principles of the present disclosure includes a storage capability module and at least one of an engine speed control module and a spark control module. The storage capability module determines a capability of a catalytic converter to store oxygen. The engine speed control module controls a speed of an engine based on the oxygen storage capability of the catalytic converter. The spark control module controls a spark timing of the engine based on the oxygen storage capability of the catalytic converter. | 04-23-2015 |
| 20150107555 | METHOD AND DEVICE FOR CONTROLLING AN INTERNAL COMBUSTION ENGINE - A method for the rapid restarting of an internal combustion engine that is slowing down at a reduced supplied air volume, in which the supplied air volume is increased again following a detected restart request and an ignitable fuel/air mixture is produced by a fuel injection in an intake cylinder that is in the intake cycle when the supplied air volume is increased, and the mixture is ignited in the intake cylinder to produce a combustion in the power cycle of the intake cylinder. | 04-23-2015 |
| 20150107556 | METHOD AND SYSTEM FOR CONTROL OF AT LEAST A SPEED REGULATOR - A method and a system for control of at least one speed regulator ( | 04-23-2015 |
| 20150114347 | Throttle Position Sensor (TPS) Clocker - The current invention includes throttle body devices with an air intake, a throttle plate in the air intake including a throttle plate shaft, wherein the throttle plate shaft horizontally traverses the throttle body, a throttle position sensor (“TPS”) attached to an end of the throttle plate shaft, and a rotational adjustment ring disposed between the throttle position sensor and the throttle body. The throttle position sensor is coupled to the rotational adjustment ring, and the rotational adjustment ring is rotatably adjustable to allow adjustment of the voltages sent from the TPS to an engine control until (“ECU”) at given positions. | 04-30-2015 |
| 20150315982 | ELECTRONIC GOVERNOR SYSTEM AND LOAD SENSING SYSTEM - An electronic governor system includes a motor, a transmission coupled to the motor, a throttle plate coupled to the transmission, the throttle plate movable to multiple positions between closed and wide-open, wherein power is supplied to the motor to move the throttle pate to a desired position and wherein power is not supplied to the motor to maintain the throttle plate in the desired position. | 11-05-2015 |
| 20150315989 | Method For Regulating A Generator Set - The invention concerns a method for regulating the injection of fuel into a heat engine of a generator set including an alternator driven by the heat engine, the alternator including a voltage regulator, the heat engine including a speed regulator having an inlet that can receive an external speed setpoint, the method including the following steps: detecting a variation in torque and kinetic energy from electrical measurements on the alternator, carrying out an action on the input of the setpoint of the voltage regulator and/or the speed regulator, on the basis of the magnitude of the variation in torque relative to the kinetic energy level. | 11-05-2015 |
| 20160032859 | SYSTEM AND METHOD FOR CONTROLLING OPERATION OF AN ENGINE - A method involves comparing a determined operating parameter of an engine, with a predefined operating parameter. The method further involves controlling a fuel source and an ignition source of the engine so as to operate at least one engine cylinder in a skip fire mode for at least one cycle of a crank shaft when the determined operating parameter is greater than the predefined operating parameter. The controlling involves transitioning the fuel source from a normal mode to the skip fire mode for the at least one cycle of the crank shaft either before transitioning the ignition source from the normal mode to the skip fire mode or when the ignition source is operated in the normal mode. | 02-04-2016 |
| 20160047322 | METHOD AND DEVICE FOR REDUNDANTLY CONTROLLING THE SPEED OF AN INTERNAL COMBUSTION ENGINE - A method for redundantly controlling a speed of an internal combustion engine, in particular of a vehicle, which includes a redundantly actuatable actuator for adjusting the speed, the method includes the following steps: detecting a first actual speed and a second actual speed of the internal combustion engine, wherein the actual speeds are detected simultaneously and independently of one another; detecting a first actual position and a second actual position of the actuator, wherein the actual positions are detected simultaneously and independently of one another; determining a plausible actual speed and a plausible actual position in accordance with the detected actual speeds and/or the detected actual positions; and actuating the actuator for adjusting the speed in accordance with the plausible actual speed and the plausible actual position. | 02-18-2016 |
| 20160061119 | APPARATUS AND METHODS FOR PERFORMING VARIABLE DISPLACEMENT CONTROL FOR A VEHICULAR ENGINE - Some embodiments are directed to a variable displacement controller for use with a vehicular engine. The controller can receive data indicative of ambient temperature and data indicative of at least one of engine speed and vehicle speed. The controller can determine engine torque value based on the engine speed, and determine a torque limit based on the ambient temperature and at least one of the determined engine torque value and the data indicative of vehicle speed. The controller can compare the engine torque value to the torque limit, and selectively activate/deactivate an engine cylinder based on the comparison between the engine torque value and the torque limit, such that the engine cylinder is deactivated if the engine torque value is less than the torque limit, and the engine cylinder is activated if the engine torque value is greater than or equal to the torque limit. | 03-03-2016 |
| 20160146137 | CONTROL APPARATUS AND CONTROL METHOD FOR AN INTERNAL COMBUSTION ENGINE - A basic EGR flow rate calculation part calculates a basic EGR flow rate based on an intake manifold pressure, which is a pressure in an intake manifold, an exhaust pressure, which is a pressure in an exhaust pipe, an exhaust temperature, which is a temperature in the exhaust pipe, and an opening degree of an EGR valve. An EGR flow rate correction part corrects the basic EGR flow rate based on an intake manifold pressure ratio, which is a ratio between the intake manifold pressure and the exhaust pressure, and an exhaust VVT phase angle of an exhaust VVT mechanism, to thereby calculate a corrected EGR flow rate as an EGR flow rate. | 05-26-2016 |
| 20170234243 | SYSTEM AND METHOD FOR CONTROLLING VALVE TIMING OF CONTINUOUS VARIABLE VALVE DURATION ENGINE | 08-17-2017 |
