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| Number | Title | Issue Date |
| 8162800 | Method for controlling disengagement of an automated clutch in a vehicle A method is provided for controlling disengagement of an automated clutch in a vehicle. A decrease of a first engine rotational speed limit, at which the clutch is disengaged, is initiated upon sensing travel of the vehicle in a down slope, and zero displacement of ... | 04/24/2012 |
| 8147381 | Clutch control system for saddle riding type vehicle A grip force of a driving wheel is maintained by identifying an actual condition of a motorcycle and controlling a clutch in a timely manner. A clutch control system includes a clutch, an actuator unit causing the clutch to engage or disengage, a rear wheel speed se... | 04/03/2012 |
| 8123659 | Method for preventing uncontrolled rollback A method and a motor vehicle applying that method for preventing an uncontrolled rollback of a motor vehicle is suggested, said method comprising means for influencing the torque transmission by a drive train. In case a rollback action is detected, namely a movement... | 02/28/2012 |
| 8083642 | Transmission apparatus A transmission apparatus includes a wet rotary clutch configured to transmit power from an input to an output when in an engaged position, a clutch lubricator to supply a lubricating oil to the wet rotary clutch, a synchromesh configured to perform a meshing operati... | 12/27/2011 |
| 8066620 | Method of clutch actuation for hybrid transmissions A method of actuating a clutch includes commanding a shift, monitoring slip speed, beginning synchronization, filling to a pre-fill volume, and holding at the pre-fill volume. After slip speed reaches a trigger point, the clutch is filled to a first predicted touch ... | 11/29/2011 |
| 8066619 | Clutch control system A clutch control system is interposed between an engine and a piece of driven equipment. The clutch control system includes a clutch assembly with input and output speed sensors for providing signals corresponding to the shaft rotational speeds of the engine and the... | 11/29/2011 |
| 8052579 | Method for checking the plausibility of the position of the clutch actuator of a clutch, method for determining the touch point of a clutch, and device for carrying out the method A method for checking the plausibility of an actuation position of a clutch of a double-clutch transmission operated by an actuator, including the following steps: disengaging the clutch assigned to the currently active old subtransmission and simultaneously engagin... | 11/08/2011 |
| 8052578 | Hydraulic vehicle clutch system and preemptive control method A hydraulic vehicle clutch system and preemptive control method includes a hydraulic vehicle clutch, a vehicle speed sensing device, a shift position sensing device, and a hydraulic pressure generating system. The pressure generating system sends hydraulic fluid to ... | 11/08/2011 |
| 7998026 | Vehicle launch using a transmission input clutch A method for controlling a transmission input clutch during a vehicle launch includes selecting a subject device that transmits torque between an input and an output, a providing a mathematical model of the subject device, such that the model employing only static r... | 08/16/2011 |
| 7867138 | Method of controlling a vehicle transmission A method of controlling a vehicle transmission, the vehicle transmission including a power shift gearbox, the power shift gearbox having a power shift input shaft, a power shift output shaft, power shift input gearing and power shift output gearing, and a plurality ... | 01/11/2011 |
| 7780572 | Control valve arrangement for controlling a starting clutch of an automatic transmission A control valve arrangement having a clutch regulation valve (3), which pressurizes a device to actuate the clutch, and a valve that produces a controlled pilot pressure (P_VST3). An electronic control unit (ECU) controls a valve to supply a control va... | 08/24/2010 |
| 7771317 | Control valve assembly for controlling a starting clutch of an automatic transmission A valve assembly for controlling actuation of at least one starting clutch of an automatic transmission includes at least one clutch control valve through which a supply pressure is directed to a clutch actuation device, a pressure control valve controlled by a cont... | 08/10/2010 |
| 7744505 | Hydraulic pressure control device for continuously variable transmission A hydraulic pressure control device is provided that that controls hydraulic pressure of a clutch supplying torque to a continuously variable transmission while the vehicle is stopped and in a running range. The hydraulic pressure control device has an control secti... | 06/29/2010 |
| 7744504 | Control apparatus of vehicle A vehicle control apparatus is provided which can detect a rotating speed drop of an engine generated together with a clutch connection so as to be set to a trigger of a control start. An engine rotating speed at a time of issuing the trigger is set to a target rota... | 06/29/2010 |
| 7736270 | Control valve arrangement for controlling a start clutch of an automatic gearbox A control valve arrangement for controlling a start coupling of an automatic gearbox comprising a clutch control valve (3, 37, 41, 48, 49) for controlling at least one clutch actuating device (4, 40) which, during normal operation of the gearbox, conve... | 06/15/2010 |
| 7488271 | Control method of magnet type fan clutch A control method of a magnet type fan clutch is provided to improve engine performance, fuel economy, engine life, and vehicle acceleration and to reduce fan noise, and optimize fan horsepower. The magnet type fan clutch has a magnet coupling combined with an electr... | 02/10/2009 |
| 7488272 | Method for the actuation of at least two clutches transmitting torque in parallel in the drive train of a motor vehicle and transmission control unit A method actuates two clutches which transmit torque in parallel in a drive train of a motor vehicle and have different successive fixed speed transmissions as gear stages between a drive shaft and an output shaft. The clutches are triggered during acceleration proc... | 02/10/2009 |
| 7470215 | Vehicle drivetrain with secondary clutch A drivetrain including a primary clutch and a secondary clutch is well-suited for use in a single-speed vehicle. The primary clutch may be automatically-engaging or manually-engaging. The secondary clutch, preferably, is normally engaged and is configured to disenga... | 12/30/2008 |
| 7429232 | Drive train and method for controlling a drive train A method for controlling a drive train of a motor vehicle, to a method for controlling a clutch device, and to a drive train of a motor vehicle, the drive train being operated in a normal load operation, in which the internal combustion engine moves the motor vehicl... | 09/30/2008 |
| 7367923 | Apparatus and method for controlling transmission of straddle-type vehicle A transmission control apparatus is provided for a straddle-type vehicle that has a clutch and a transmission with a dog clutch having a first gear and a second gear. The transmission control apparatus includes a clutch actuator configured to engage and disengage th... | 05/06/2008 |
| 7366601 | Automatic transmission having torque converter with lockup clutch and method of controlling same lockup clutch When a downshift instruction has been detected, the oil pressure of a lookup clutch is controlled, and the state of operation of the automatic transmission is detected. If a starting condition has been met, a slip rotation speed of the lockup clutch is calculated, a... | 04/29/2008 |
| 7361120 | Control of lock-up clutch A lock-up clutch control device which controls a lock-up clutch (6) provided in a torque converter (5) interposed between an engine (3) and a transmission (4) used with a vehicle, is disclosed. The lock-up clutch control device has a diff... | 04/22/2008 |
| 7356400 | Clutch control apparatus and method A clutch control apparatus for a power transmission system including an input rotating member and an output rotating member. The clutch control apparatus includes a friction clutch, and a control unit. The control unit sets a first desired clutch torque setting in a... | 04/08/2008 |
| 7335133 | Control apparatus method for automatic transmission A control apparatus for an automatic transmission includes an engine; a torque converter connected with the engine; an oil pump driven by the engine; a starting clutch adapted to be engaged by an engagement pressure produced by the oil pump to transmit propelling po... | 02/26/2008 |
| 7329206 | Starting device for motor vehicles A starting device has a first friction element, a second friction element, and a control unit controlling them to change their power transmission states. The friction elements are arranged between an engine and wheels. The control unit controls the first element to ... | 02/12/2008 |
| 7318512 | Dual clutch transmission with radially nested clutches having a common disk carrier A dual clutch transmission having radially nested clutches includes an outer clutch having a plurality of first outer clutch disks, a plurality of first inner clutch disks, and a first inner support carrier, with the first inner clutch disks operatively mounted to t... | 01/15/2008 |
| 7316630 | Control method and apparatus for a continuously variable transmission A control apparatus for a continuously variable transmission ensures good acceleration performance during staffing operations, and following an engine stall occurring before a gear ratio of the continuously variable transmission is shifted back to a low speed. The c... | 01/08/2008 |
| 7314427 | Driving force transmission apparatus A driving force transmission apparatus is provided for a twin clutch transmission with two clutches, that are controlled a gear change control without a torque cutting out to reduce slapping sounds of the gears by performing a pre-shift operation before the gear shi... | 01/01/2008 |
| 7314429 | Method for the protection of an automatically actuated clutch of a vehicle against overload A method for the advance determination of an overload of an automatically actuated clutch of a vehicle during a slippage phase and to prevent the overload. The method determines the energy introduced into the clutch during a predetermined first time span of the slip... | 01/01/2008 |
| 7267634 | Drive device for working vehicle and method of controlling the drive of working vehicle The present invention provides a drive device for a working vehicle whereby gear change shock during the forward/reverse running changeover action can be reduced while achieving shortening of cycle time and protecting various clutch mechanisms in the transmission. I... | 09/11/2007 |
| 7263977 | Method and device for operating an internal combustion engine in overrun conditions A method is provided for operating an internal combustion engine 10 in overrun condition, which method includes the steps of: release of a monitoring of a control signal for a power actuator of the internal combustion engine when predetermined release conditi... | 09/04/2007 |
| 7264101 | Start-up clutch and torsional-vibration damper assembly A start-up clutch and torsional-vibration damper assembly including a disk clutch having an outer disk carrier and an inner disk carrier, and a torsional vibration damper having a primary element, a secondary element, and a spring dampening mechanism. The spring dam... | 09/04/2007 |
| 7258650 | Systems and methods for controlling a powertrain A system is provided for controlling the operation of powertrain, including an engine and a torque converter having a torque converter clutch. The system may include a torque governor for controlling a torque output of the engine and a speed governor for controlling... | 08/21/2007 |
| 7255664 | Starting clutch control device A starting clutch control device includes a starting clutch disposed between an engine and a transmission installed to a vehicle. A torque coefficient setting section sets a torque coefficient based on a clutch speed ratio of the starting clutch and a throttle openi... | 08/14/2007 |
| 7235036 | Lockup control apparatus and method for vehicular torque converter In a lockup control apparatus and method for a vehicular torque converter, the torque converter is controlled to be under a steady-state lockup state by a lockup clutch during a steady-state traveling state, and the torque converter is controlled to be under a coast... | 06/26/2007 |
| 7226383 | Control device for hybrid vehicle A hybrid vehicle is driven by one or both of an engine and a drive motor. The engine is started by a power generating motor, and power generated by the engine is supplied to a battery. An engine-power transmission path is provided with a coupling for being shifted t... | 06/05/2007 |
| 7228216 | Automatic shift control apparatus and method for manual transmission In automatic shift control apparatus and method for a manual transmission, at least one clutch is interposed between an engine and the manual transmission and a controller performs a feedback control for an engagement force of the clutch after a gear shift for the m... | 06/05/2007 |
| 7222012 | Axle torque based powertrain braking with range selection for coordinated torque control (CTC) A powertrain braking system for a vehicle includes an powerplant that can be regulated to provide a desired powerplant torque and a transmission that transfers the desired powerplant torque at one of a plurality of gear ratios to provide a desired axle torque. A con... | 05/22/2007 |
| 7220216 | Lock-up clutch control device A lock-up clutch control device for controlling a lock-up clutch mechanism provided to a torque converter is including an estimator means for estimating a contact timing of a friction material included in the lock-up clutch mechanism during a driven state based on a... | 05/22/2007 |
| 7217223 | Vehicle with clutch for transmission of torque output of motor A vehicle comprises a motor (4) and a wet clutch (12) for transmission of torque output of the motor to road wheels of the vehicle and transmission of road load from the road wheels to the motor (4). The wet clutch is disengaged in response to a... | 05/15/2007 |
