| Entries |
| Document | Title | Date |
|---|
| 20080200303 | Control device for vehicular drive system - Hybrid controller | 08-21-2008 |
| 20080207394 | Control apparatus for an automatic transmission and related control method - In executing an ETC cooperative downshift operation based on a driver's intent to decelerate, this system executes an engine output increasing control (e.g. a combination of a throttle opening control and a fuel injection restoring control) for increasing the engine output irrespective of driver's accelerator operation. At the timing a reduction amount in an input shaft rotational speed Nt exceeds a predetermined value K after the ETC cooperative downshift control is started, it is presumed that the hydraulic pressure of a to-be-disengaged clutch is already reduced to a hydraulic pressure level equivalent to a predetermined transmission torque capacity that causes no undesirable acceleration or shock even if the engine output increasing control is started. And, under such assumption, the engine output increasing control is started at this timing. Accordingly, the present invention can accurately set the start timing of the engine output increasing control so as to suppress any undesirable acceleration or shock caused by the engine output increasing control. | 08-28-2008 |
| 20080254939 | Engine Control Device for Work - An engine control device for a work vehicle includes: a hydraulic pump | 10-16-2008 |
| 20080254940 | Control Strategy for Multi-Mode Vehicle Propulsion System - A method for controlling a propulsion system for a vehicle including a transmission coupling an output shaft of the internal combustion engine to a drive wheel of the vehicle, wherein said transmission includes a lash region, the method comprising of adjusting an operating parameter of the engine so that at least one cylinder of the engine is transitioned between a first combustion mode and a second combustion mode, and varying a timing of said transition responsive to whether the transmission is operating within the lash region of the transmission. | 10-16-2008 |
| 20080300105 | Method for Exiting an Engine-Idle Driving Mode in a Heavy Land Vehicle - Method for exiting an engine-idle driving mode in a heavy land vehicle having an automatic transmission. The engine-idle driving mode is established in the vehicle when the engine is running substantially constantly at idle speed and a gear is engaged propelling the vehicle at a corresponding substantially constant, relatively slow vehicle speed. The method includes receiving a driver request, when in engine-idle driving mode, to accelerate from the prevailing substantially constant, relatively slow vehicle speed. The engine torque requirement is assessed for delivering the requested acceleration that can be developed from the engine while maintaining the automatic transmission in the same gear in which engine-idle driving is taking place. The requested acceleration is delivered by increasing the engine's torque output and without downshifting the automatic transmission. | 12-04-2008 |
| 20090005216 | METHODS AND SYSTEMS TO FEEDBACK COORDINATED TORQUE CONTROL SYSTEM INFORMATION - An engine control system comprises a first torque request module that generates a first torque request, a second torque request module that generates a second torque request, a torque arbitration module, an arbitration feedback module, and a torque control module. The torque arbitration module selects one of the first and second torque requests and outputs an arbitrated torque based on the selected one of the first and second torque requests. The arbitration feedback module reports a status signal to the first torque request module. The status signal has a first value when the first torque request is the selected one of the first and second torque requests. The torque control module controls an engine to produce the arbitrated torque. The power source includes an internal combustion engine. | 01-01-2009 |
| 20090029827 | Method and apparatus for controlling transmission functions in a vehicle transmission - A method and apparatus for controlling transmission functions in a transmission of a motor vehicle by an electromagnetically actuated control valve. The control valve is controlled by a control device that includes a stored valve characteristic curve to provide a temperature-dependent and a target-current-dependent overlay, so that a symmetrical target value oscillation around a target current value is achieved. The characteristic curve for controlling the control valve is adapted at least partially as a function of a current value and a temperature. | 01-29-2009 |
| 20090042693 | POWER TRANSMISSION CONTROLLING APPARATUS - A power transmission controlling apparatus for controlling a power transmission mechanism provided with a main transmission | 02-12-2009 |
| 20090069153 | METHODS FOR SHIFTING A VEHICLE TRANSMISSION - A continuously variable transmission mechanically coupled with an automated mechanical transmission is adjusted during a shifting process. At the completion of the shifting process, an engine mechanically coupled with the automated mechanical transmission is provided a fueling pulse. Additionally, the speed of an output shaft of the automated mechanical transmission is filtered by a second order variable time constant low pass filter. | 03-12-2009 |
| 20090088295 | Torque-based control system for a continuously variable transmission - A continuously variable transmission is provided having a driven element. The continuously variable transmission also has at least one operator input device configured to transmit a transmission operating mode request and at least one other operator input device configured to transmit a driven element output request. In addition, the continuously variable transmission has at least one sensor configured to sense at least one parameter indicative of an operating condition of the transmission. The continuously variable transmission further has a controller configured to regulate an output of the driven element in response to the operating mode request, the driven element output request, and the at least one sensed parameter indicative of an operating condition of the transmission. | 04-02-2009 |
| 20090111652 | Vehicle speed limiting via engine control commands issued by electronic transmission controller - A machine includes a drive train with an electronically controlled transmission in communication with an electronic engine controller. The machine ground speed is limited by executing a vehicle speed limit algorithm in the electronic transmission controller. This algorithm generates an engine control message that is communicated to the electronic engine controller. The power output of the engine is reduced responsive to the engine control message. The machine responds by not exceeding a prescribed speed limit programmed into the electronic transmission controller. This vehicle speed limiting strategy is particularly applicable to machines without a vehicle speed limiting algorithm resident in the electronic engine controller. | 04-30-2009 |
| 20090118092 | Transmission Shifting Responsive to Borderline Knock Limits - A method for operating an engine and transmission in a vehicle is described. The method comprises up-shifting the transmission based on whether engine knock limits spark advance at engine conditions after the up-shift. Further, the method may include accounting for differences in fuel types, and their effects on engine knock in future gears. | 05-07-2009 |
| 20090258755 | POWER OUTPUT APPARATUS, CONTROL METHOD OF POWER OUTPUT APPARATUS, AND VEHICLE EQUIPPED WITH POWER OUTPUT APPARATUS - An object oil temperature is determined by adopting a gradual change process for an oil temperature of a cooling lubricant oil, which is used to lubricate and cool down a motor and a transmission constructed to cause an output power of the motor to be subjected to speed change and to be transmitted to a driveshaft. A load factor of the motor is subsequently set based on the set object oil temperature and a motor coil temperature. A motor torque command is set with the load factor, and the motor is then driven and controlled to ensure output of a torque equivalent to the set motor torque command. This arrangement drives and controls the motor with consideration of the oil temperature of the cooling lubricant oil and thus ensures more adequate actuation of the motor, compared with a conventional drive control without consideration of the oil temperature of the cooling lubricant oil. | 10-15-2009 |
| 20090298644 | IDLING-STOP CANCELLATION CONTROL APPARATUS OF VEHICLE DRIVING SYSTEM - In an idling-stop cancellation control apparatus of a vehicle driving system of an idling-stop control device equipped automotive vehicle capable of running by a power produced by an engine and transmitted via a transmission whose shift is controlled by a hydraulic pressure produced by an engine-driven oil pump during operation of the engine, a controller is configured to execute, based on engine speed, idling-stop cancellation control by which the vehicle driving system is put into an output torque state suited for vehicle-driving operation, when a hydraulic pressure sensor system provided for detecting a hydraulic pressure used for shift control of the transmission is failed. The controller is further configured to execute, based on the hydraulic pressure, idling-stop cancellation control by which the vehicle driving system is put into an output torque state suited for vehicle-driving operation, when the hydraulic pressure sensor system is unfailed. | 12-03-2009 |
| 20090312146 | METHOD FOR CONTROLLING AN AUTOMATIC TRANSMISSION AND TRANSMISSION CONTROL SYSTEM - A method of controlling an automatic transmission in a utility vehicle in which a driving strategy is predetermined by a transmission control system. The driving strategy is adjusted as a function of a currently determined load status of the utility vehicle. Furthermore, a transmission control system for an automatic transmission of a utility vehicle, in particular a container vehicle, which comprises a transmission control unit for controlling the transmission in accordance with a predetermined driving strategy. The transmission control unit is coupled to a load recognition module for determining the current load status of the vehicle. | 12-17-2009 |
| 20090325761 | TRANSMISSION SCHEDULING FOR MULTI-STROKE ENGINE - A multi-mode internal combustion engine is described. As one example, the engine may be transitioned between a two stroke mode and a four stroke mode in coordination with a transmission shift by adjusting a number of strokes performed by the engine per combustion cycle while shifting the transmission between different gear ratios. Under select conditions, the number of strokes performed by the engine per combustion cycle may be reduced while shifting the transmission from a higher gear ratio to a lower gear ratio. Under other conditions, the number of strokes performed by the engine per combustion cycle may be increased while shifting the transmission from a lower gear ratio to a higher gear ratio. | 12-31-2009 |
| 20090325762 | Machine having a multiple-ratio transmission - A method of operating a machine is disclosed. The machine may have a power system that includes a prime mover, a multiple-ratio transmission, a propulsion device, and power-system controls. The method may include propelling the machine by transmitting power from the prime mover to the propulsion device through the multiple-ratio transmission, while controlling operation of the prime mover and the multiple-ratio transmission with the power-system controls. This may include determining with the power-system controls at least one energy-efficiency estimate based at least in part on energy-efficiency characteristics of the prime mover and energy-efficiency characteristics of the multiple-ratio transmission. Controlling the prime mover and the multiple-ratio transmission may further include controlling a prime-mover operating speed of the prime mover and a transmission drive ratio of the multiple-ratio transmission based at least in part on the at least one energy-efficiency estimate. | 12-31-2009 |
| 20100016120 | MANUAL DOWNSHIFT CONTROL METHOD FOR AUTOMATIC TRANSMISSION - A control system and a method for controlling an automatic transmission that determines the disengagement of an off-going clutch and the engagement of an on-coming clutch by monitoring the corresponding hydraulic clutch pressures, and/or the calculated gear ratios with or without the assistance of off-pressure timer controls, or both. | 01-21-2010 |
| 20100197457 | VEHICLE DRIVING FORCE CONTROL DEVICE - A shift output torque control unit executes a shift output torque control to control an engine torque so as to reduce a driving force difference, which is a variation width of a driving force due to downshift of an automatic transmission. Thus, in comparison with the case in which the shift output torque control is not executed, it is possible to smooth a variation in driving force associated with the downshift. As a result, occupants' comfort and controllability to driving operation may be improved. | 08-05-2010 |
| 20100317487 | VEHICLE TRAJECTORY CONTROL SYSTEM - Systems and methods for controlling a throttle plate to adjust airflow to the engine are provided. A transmission having an input speed and an output speed and including a clutch and a driver-selectable transmission lever is controlled to adjust engine speed to a synchronous speed in a future gear ratio in response to driver foot pedal positions and driver-selectable transmission lever positions. | 12-16-2010 |
| 20110237390 | METHOD FOR THE OPERATION OF A DRIVETRAIN - A method of operating of a drivetrain, having at least a drive motor and an automatic transmission with at least five shift elements, to improve a shift speed such that during a first upshift or a first downshift, at least one required shift element is prepared such that, when a synchronization point is reached, the successive upshift or the successive downshift can be immediately carried out. The method comprises the steps of requiring, at most, two of the at least five shift elements be disengaged and a remainder of the shift elements be disengaged for each gear for transferring one of torque and force; and one of increasing and decreasing a torque of the drive motor, relative to a torque of the drive motor derived from a driver's wish, during one of the first upshift or downshift and the successive upshift or downshift to assist with an overlapped implementation of the successive upshifts or the successive downshifts. | 09-29-2011 |
| 20110287892 | VEHICLE TRAJECTORY CONTROL SYSTEM - Systems and methods for controlling a throttle plate to adjust airflow to the engine are provided. A transmission having an input speed and an output speed and including a clutch and a driver-selectable transmission lever is controlled to adjust engine speed to a synchronous speed in a future gear ratio in response to driver foot pedal positions and driver-selectable transmission lever positions. | 11-24-2011 |
| 20120165155 | TRANSMISSION SCHEDULING FOR MULTI-STROKE ENGINE - A multi-mode internal combustion engine is described. As one example, the engine may be transitioned between a two stroke mode and a four stroke mode in coordination with a transmission shift by adjusting a number of strokes performed by the engine per combustion cycle while shifting the transmission between different gear ratios. | 06-28-2012 |
| 20120184406 | GEAR SHIFT CONTROL - A motor vehicle comprising: a power source capable of driving the motor vehicle, a gearbox coupled to the power source; and a gear shift commander having a normal state, a prepare state and a shift state; wherein the vehicle is configured to, in response to the gear shift commander entering the prepare state, cause the gearbox and/or the power source to undergo a preparatory adjustment in preparation for an up or down shift; and the vehicle is configured to make an up or down shift in response to the gear shift commander entering the shift state. | 07-19-2012 |
| 20120208674 | METHOD AND SYSTEM FOR ENGINE CONTROL - Methods and systems are provided for controlling an engine system with a variable cam timing device. In one example, the variable cam timing device is operated to adjust engine valve timing differently at engine stop based on whether the engine stop is in response to an operator request or in response to an automatic controller initiated engine stop without an operator request. | 08-16-2012 |
| 20120277061 | SYSTEM AND METHOD FOR SYNCHRONIZING ENGINE AND TRANSMISSION SYSTEM OPERATION WITHIN AN AGRICULTURAL VEHICLE - A system and method for controlling a transmission system is provided. One agricultural vehicle includes a vehicle controller configured to instruct an engine controller to maintain an engine at a constant speed and to receive a first signal from a transmission controller indicative of gear shift initiation. The vehicle controller is also configured to instruct the engine controller to maintain the engine at a current torque upon receipt of the first signal and to receive a second signal from the transmission controller indicative of gear shift completion. The vehicle controller is configured to instruct the engine controller to maintain the engine at the constant speed upon receipt of the second signal. | 11-01-2012 |
| 20120289377 | ELECTRIC TOOL - An electric tool causes a drive mechanism to drive a tip tool to thereby cause the tip tool to perform predetermined work, and the drive mechanism is provided with a driving gear and a driven gear which meshes with the driving gear. The electric tool is configured in such a manner that an axial force or a radial force generated by the meshing between the driving gear and the driven gear is measured to detect the state of torque acting on the tip tool, and drive control of the drive mechanism is performed according to the detected state of torque. | 11-15-2012 |
| 20120316031 | Controlling a Transmission Skip Change Upshift - A method for controlling a transmission gear change to a desired gear includes disengaging an offgoing transmission control element, changing engine speed to a synchronous speed of the desired gear, decreasing engine output torque, and engaging an oncoming transmission control element. | 12-13-2012 |
| 20130090210 | DEVICE AND METHOD FOR SYNCHRONIZING A FLYWHEEL WITH A DRIVETRAIN - A vehicle driveline and a method for synchronizing a flywheel and the vehicle driveline are provided. The vehicle driveline includes a power source, a primary clutch drivingly engaged with the power source, a primary transmission drivingly engaged with the primary clutch, a secondary transmission drivingly engaged with one of a portion of the primary clutch and an input of the primary transmission, a controller in communication with the secondary transmission, and a flywheel drivingly engaged with the secondary transmission. The vehicle driveline facilitates a transfer of energy to and from the flywheel based on at least one of a state of charge of the flywheel, a power requirement of the vehicle driveline, and a state of operation of the power source. | 04-11-2013 |
| 20130260962 | ADAPTIVE POWER SOURCE CONTROL SYSTEM - A method of controlling a power source associated with a machine includes determining a difference between an underspeed setpoint associated with a peak power source torque and a first power source speed. The method also includes determining a torque distribution associated with the power source and at least one parasitic load receiving power from the power source. The torque distribution is based on the difference and respective torque priority values associated with the power source and the at least one parasitic load. The method further includes providing torque from the power source to the at least one parasitic load based on the torque distribution and modifying at least one of the respective torque priority values. Modifying at least one of the torque priority values reduces a difference between the underspeed set point and a second power source speed different than the first power source speed. | 10-03-2013 |
| 20140100081 | VEHICLE TRAJECTORY CONTROL SYSTEM - Systems and methods for controlling a throttle plate to adjust airflow to the engine are provided. A transmission having an input speed and an output speed and including a clutch and a driver-selectable transmission lever is controlled to adjust engine speed to a synchronous speed in a future gear ratio in response to driver foot pedal positions and driver-selectable transmission lever positions. | 04-10-2014 |
| 20140248995 | MULTI-STROKE VARIABLE DISPLACEMENT ENGINE - A vehicle propulsion system and method of operation are presented. As one example, cylinder deactivation and transitioning from four to two strokes is coordinated with transmission shifting to improve vehicle response. Additionally, it is possible to reduce transitions in operating modes to improve drive feel. | 09-04-2014 |
| 20140315684 | POWERTRAIN CONTROL SYSTEM - The present application relates to a powertrain control system ( | 10-23-2014 |
| 20140349815 | Gearbox for industrial applications or wind power plants - The invention relates to a gearbox having a sensing device ( | 11-27-2014 |
| 20150354474 | TRANSMISSION SYSTEM HAVING TEMPERATURE BASED INPUT CONTROL - A transmission system is disclosed for use with an engine. The transmission system may have a plurality of gear sets, an input member configured to be powered by the engine and to drive the plurality of gear sets, an output member driven by the plurality of gear sets, and at least one clutch configured to selectively engage select gears of the plurality of gear sets. The transmission system may also have a controller in communication with the engine. The controller may be configured to generate an estimated temperature of the at least one clutch. The controller may further be configured to selectively derate the engine based on the estimated temperature. | 12-10-2015 |
| 20150361910 | INTELLIGENT IDLE STOP AND GO CONTROL DEVICE AND METHOD THEREOF - An intelligent ISG control device of a vehicle includes a signal detection unit configured to detect a plurality of signals of including a signal indicating a voltage or a state of charge of a battery, a signal indicating an engine RPM, a signal indicating a coolant temperature, a signal indicating an engine oil temperature of an engine, a signal indicating a vehicle speed, a signal indicating a phase or variation in phase of an accelerator pedal, a signal indicating manipulation of a brake pedal, a signal indicating a steering angle or operation of a power steering, and a signal indicating a brake booster pressure, and an ISG control unit configured to determine whether an engine stop condition or an engine stop release condition is satisfied based on at least one signal of the plurality of signals. | 12-17-2015 |
| 20160003355 | VEHICLE CONTROL DEVICE - There is provided a control device for a vehicle including: an engine; a water pump driven by the engine to circulate engine cooling water, and a transmission that changes a speed of rotation transmitted from the engine and transmits the rotation with a changed speed to drive wheels. A speed ratio of the transmission may be changed by a manual operation. The control device includes at least one electronic control unit configured to: i) execute output control of the engine in response to an accelerator pedal operation performed by a driver; and ii) control the engine such that an output of the engine When a condition that a cooling capacity for cooling the engine is determined to be insufficient with respect to a load on the engine is satisfied is lower than an output of the engine based on an accelerator operation amount when the condition is not satisfied. | 01-07-2016 |
| 20160033039 | CONTROL DEVICE OF ENGINE - An engine control device to be mounted on a vehicle is provided. The control device includes a transmission state determining module for determining a connection between a stepped transmission and an engine, determining that a gear shift has started if the connection is disengaged from a connected state, and determining that the gear shift has finished if the connection is resumed, a gear position estimating module for estimating a gear position when the gear shift is determined to have started, a target engine speed specifying module for specifying a target engine speed based on the estimated gear position, and a speed control module for controlling an engine speed to the target engine speed when the gear shift is determined to have started. | 02-04-2016 |
| 20160075340 | SYSTEM AND METHOD FOR CONTROLLING FAIL SAFE OF TRANSMISSION FOR VEHICLE - A method and system for controlling a fail safe of a transmission for a vehicle are provided. The method includes detecting an oil temperature of the transmission for the vehicle and determining whether an oil pump has been driven for a set time or more based on the detected oil temperature. An output of an engine is then limited when the set time elapses. | 03-17-2016 |
| 20160076462 | POWER SYSTEM HAVING EFFICIENCY-BASED SPEED CONTROL - A power system is disclosed as having a power source, a transmission configured to receive a torque output from the power source and to drive a traction device, and an operator input device. The power system may also have a controller configured to reference a signal from the operator input device with a map stored in memory to determine a corresponding speed of the power source, and to determine a margin between an actual and a maximum available torque output of the power source at a current speed. The controller may also be configured to selectively adjust a speed of the power source mapped to the maximum displaced position of the operator input device based on the margin, and to selectively adjust fueling of the power source at a current displacement position of the operator input device and operation of the transmission based on the signal and map. | 03-17-2016 |
| 20160090094 | CONTROL SYSTEM FOR VEHICLE - A control system is for a vehicle. The control system includes an electronic control unit configured to perform a coast downshift, and execute blipping control during performance of the coast downshift. The electronic control unit is configured to determine whether blipping abnormality occurs. The electronic control unit is configured to disengage an engagement element on an engagement side when the blipping abnormality occurs during the performance of the coast downshift. The electronic control unit is configured to increase a speed of the engine in the blipping control. The blipping abnormality is a state that the blipping control is not executed normally during the performance of the coast downshift. The engagement element on the engagement side is an engagement element that is changed from a disengaged state to an engaged state in the coast downshift. | 03-31-2016 |
| 20160107648 | ADAPTIVE AUTOMATIC TRANSMISSION CONTROL SYSTEM - An adaptive automatic transmission control system responds to stopping of a vehicle for reducing torque absorption by an automatic transmission and movement of and range to obstructions forward from a vehicle for reengaging the automatic transmission after a stop. The torque converter is released from its reduced torque absorption mode under one of three circumstances: 1) the brake pedal is released; 2) the detected obstruction moves outside a first predefined maximum range; and, 3) the detected obstruction moves outside a second predefined maximum range and at greater than a predefined minimum speed. | 04-21-2016 |
| 20160159361 | Vehicle Powertrain Synchronization Based on Predicted Driver Actions - An approach is provided in which a powertrain synchronizer analyzes condition data that corresponds to impending conditions external to a vehicle. The powertrain synchronizer predicts a driver's future action in response analyzing the condition data and adjusts the vehicle's powertrain subsystem based upon the predicted driver action. | 06-09-2016 |
| 20160377176 | ACTIVE REV-MATCHING FOR MANUAL TRANSMISSIONS - An active rev-matching system for a motor vehicle manual transmission includes an engine control module that monitors and adjusts an output speed of the motor vehicle's prime mover and at least one sensor that monitors movement of a shift linkage. When the at least one sensor determines the movement of the shift linkage is an in-gate downshift, the engine control module adjusts the available time for the engine control module to match the output speed of the prime mover to an input speed of the transmission. | 12-29-2016 |
