Patent application number | Description | Published |
20100004829 | Torque Control Device for Power System - A torque control device for a power system and facilitates the addition of a new torque control actuator. A target torque signal according to a target torque for the power system is distributed to each actuator in a predetermined distribution priority order. A signal processing filter is mounted on a signal input section of each actuator and allows only a portion of distributed signal that matches the operation characteristics of the actuator to pass through as a command signal for the actuator. | 01-07-2010 |
20100017095 | INTERNAL COMBUSTION ENGINE CONTROL DEVICE - The present invention provides an internal combustion engine control device which is capable of implementing a plurality of functions desired to the internal combustion engine. An adder unit determines a total energy E_total that should be generated by the engine by adding a target work, a target exhaust energy and cooling heat loss, which are calculated in a style of energy. A target fuel supply quantity calculation unit calculates a target fuel supply quantity necessary for generating the E_total. A target intake quantity calculating unit calculates a target intake quantity based on the target fuel supply quantity and a target A/F. A target ignition timing calculation unit calculates a target ignition timing necessary for realizing the target exhaust energy. | 01-21-2010 |
20100059019 | CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE - A control device for an internal combustion engine in which controls can be simplified, and being capable of performing high-performance control by appropriately mediating a plurality of requirements. The device includes an emission control unit, a fuel consumption control unit and an idle stability control unit. Those units output requirements for the internal combustion engine on the basis of their respective aims. An efficiency mediation unit that mediates requirements from those units is provided. Furthermore, an actuator instruction value calculation unit, which determines instruction values for the plurality of actuators installed in the internal combustion engine on the basis of a result of mediation performed by the efficiency mediation unit, is also provided. The requirement is a requirement concerning torque efficiency, which indicates a ratio of a required torque to a reference torque that is obtained when operating points of the plurality of actuators are optimized. | 03-11-2010 |
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 |
20100114458 | CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE - The present application relates to a control apparatus for an internal combustion engine. It is an object of the present application to prevent an excessive reaction of a throttle valve when the opening of the throttle valve is controlled on the basis of a plurality of required torques. The control apparatus includes: required torque consolidation means for calculating an after-consolidation required torque first torque control means which causes an actual torque to follow variation of the after-consolidation required torque by changing the opening of the throttle valve in accordance with the variation of the after-consolidation required torque; and second torque control means which fixes the opening of the throttle valve and causes the actual torque to follow variation of the after-consolidation required torque. | 05-06-2010 |
20100191406 | CONTROL APPARATUS FOR VEHICLE DRIVE UNIT - A control apparatus for a vehicle drive unit including a control structure of a hierarchical type having a demand generation level, a mediation level, and a control variable setting level and a signal is transmitted in one direction from a higher level of hierarchy to a lower level of hierarchy. The demand generation level includes demand output elements for each capability. The mediation level includes mediation elements, each corresponding to a classified category of demands. Each of the mediation elements collects demand values of the category of which the mediation elements are in charge and performs mediation according to a rule to arrive at a single demand value. The control variable setting level includes an adjuster portion adjusting each of the mediated demand values based on a relationship between each other and control variable calculation elements calculating a control variable of each of a plurality of actuators based on the adjusted demand value. | 07-29-2010 |
20100198485 | CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE - A control apparatus for an internal combustion engine that accurately incorporates demands related to various capabilities of the internal combustion engine. A demand output unit outputs various capability demands of the internal combustion engine, expressed in terms of either torque, efficiency, or an air-fuel ratio data. A torque mediation unit collects only the demand values expressed in terms of torque, and mediates the torque demand values into one. An efficiency mediation unit collects the demand values expressed in terms of efficiency and mediates the efficiency demand values into one. An air-fuel ratio mediation unit collects the demand values expressed in terms of the air-fuel ratio and mediates the air-fuel ratio demand values into one. A control variable computing unit computes control variables of actuators, based upon the torque demand value, efficiency demand value, and air-fuel ratio demand value output from the mediation units. | 08-05-2010 |
20100211287 | INTERNAL COMBUSTION ENGINE CONTROL DEVICE - The internal combustion engine control device includes a request output section and a mediation section. The request output section expresses a plurality of requests about internal combustion engine functions (drivability, exhaust gas, and idling) in terms of physical quantities (torque, efficiency, and air-fuel ratio) and outputs the requests. The mediation section collects a plurality of requests A-C expressed in terms of the same physical quantity and conducts mediation in accordance with a predefined rule to determine one request value E. The requests A-C output from the request output section are defined on the basis of the range of request values and the distribution of expected values indicative of the degree of expectation of request values within the range. The mediation section calculates the sum D of the expected values of the plurality of requests A-C and conducts mediation to determine the request value E that prevails when the sum is maximized. | 08-19-2010 |
20100268436 | CONTROL DEVICE FOR VEHICLE DRIVE UNIT - This invention is intended to ensure that a control device for a vehicle drive unit is capable of realizing desired torque by making the main-actuator and sub-actuator collaborate adequately while holding the interposition of the sub-actuator as low as possible. For this end, a future target of torque that is going to be output from the engine and a realization timing of the future target are taken as reservation information for reserving engine torque regulation. Next, the required period, which is required to realize the future target when a main-actuator (a throttle) is operated to regulate the torque, is computed from a current engine operating condition. Then, the operation of the main-actuator is started at the timing preceding the realization timing by the required period for realizing the future target. In parallel with that, a sub-actuator (an ignition system) is operated to cancel out a torque change induced by the operation of the main-actuator during the period from the start timing of the operation of the main-actuator to the realization timing. | 10-21-2010 |
20100269785 | INTERNAL COMBUSTION ENGINE CONTROL DEVICE - When fuel cut permission conditions are satisfied, a guard provided by an ignition timing retardation limit is relieved. In the resulting state, the ignition timing is retarded to decrease the output torque of an internal combustion engine. After the output torque of the internal combustion engine is decreased to a predetermined minimum torque, the supply of fuel is shut off. When, on the other hand, recovery from a fuel cut is to be achieved, the guard provided by the ignition timing retardation limit is relieved until completion conditions for recovery from the fuel cut are satisfied. In the resulting state, the ignition timing is retarded to decrease the output torque of the internal combustion engine. | 10-28-2010 |
20110144885 | CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE - A control apparatus for an internal combustion engine is provided that can precisely reflect requirements relating to performance of the internal combustion engine in a control amount of each actuator by compensating for weaknesses in the so-called torque demand control. A requirement value of each of torque, efficiency, and an air-fuel ratio, and engine information are inputted to an engine inverse model. The engine inverse model is then used to calculate actuator requirement values for achieving those requirement values. An actuator direct requirement value directly required of each of actuators is also acquired. Control of the actuators is adapted to be changed between that according to the actuator requirement value and that according to the actuator direct requirement value. | 06-16-2011 |
20120022770 | CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE - A control device for an internal combustion engine is provided. The control device includes means which controls fuel injection by a fuel injection device, and means which controls the throttle. The fuel injection control means sequentially restarts fuel injection for each cylinder in accordance with an ignition sequence among cylinders when cancellation conditions of fuel cut are satisfied during implementation of the fuel cut. Meanwhile, the throttle control means firstly controls the throttle to a closing side when the cancellation conditions of fuel cut are satisfied. The throttle is controlled to the closing side, whereby the air amount in the intake pipe is decreased, and the air amount in a cylinder which is the basis of calculation of a fuel injection amount is also decreased. | 01-26-2012 |
20120279476 | SPARK IGNITION TYPE INTERNAL COMBUSTION ENGINE - An internal combustion engine which is provided with a variable compression ratio mechanism which can change a mechanical compression ratio and a variable valve timing mechanism which can control a closing timing of an intake valve. A target operating point which can be reached after a fixed time without entering no-entry regions from the current operating point toward an operating point which satisfies the demanded intake air amount is calculated for an operating point which shows a combination of the mechanical compression ratio and the closing timing of the intake valve when the demanded intake air amount changes, and the mechanical compression ratio and the closing timing of the intake valve are made to change toward this target operating point. | 11-08-2012 |
20120304968 | SPARK IGNITION TYPE INTERNAL COMBUSTION ENGINE - An internal combustion engine which is provided with a variable compression ratio mechanism which can change a mechanical compression ratio and a variable valve timing mechanism which can control a closing timing of an intake valve. No-entry regions (X | 12-06-2012 |