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| Number | Title | Issue Date |
| 8070653 | Method and system for controlling engine speed, engine torque and output from a torque converter The present invention broadly comprises a method for controlling engine speed, engine torque, and torque converter output including the steps of applying engine torque to a torque converter and modulating the transferring of the torque to a pump for the torque conve... | 12/06/2011 |
| 8057359 | Twin clutch type speed change control system A twin clutch type speed change control system changes over the gear position by switching between a pair of clutches, to reduce the collision sound generated between a free gear and a slide member at the time of changeover of the gear position. In the twin clutch t... | 11/15/2011 |
| 8033957 | Clutch controller, straddle-type vehicle, and method for controlling clutch Appropriate torque is transmitted via a clutch that does not spend too much time on its engaging operation. A clutch controller controls a degree of engagement of the clutch by actuating a clutch actuator based on a difference between actual transmission torque that... | 10/11/2011 |
| 7985163 | Adaptive clutch torque control for a powershift transmission A method for controlling an input clutch of a vehicle transmission that includes an output driveably connected to the input clutch includes increasing the torque capacity of the input clutch, determining a reference acceleration of the output, determining a current ... | 07/26/2011 |
| 7967727 | Clutch control device An oil pressure command value for slip-control of a lock-up clutch of a torque converter is calculated based on a feed-forward oil pressure value calculated by an FF value calculating unit and a feed-back oil pressure value calculated by a feedback value calculating... | 06/28/2011 |
| 7828696 | Method for controlling engine torque of hybrid electric vehicle with electronic throttle control A method for controlling engine torque of a hybrid electric vehicle with an electronic throttle control when an engine is restarted after an idle-stop state includes: transmitting torque restriction information to an engine control unit, outputting a restricted torq... | 11/09/2010 |
| 7798941 | Compliance-on-demand for vehicle transmission clutch Provided is a selectively actuable compliance system for a vehicle transmission having a clutch in hydraulic communication with a clutch feed path. The compliance system also includes a disconnect valve or control that may selectively disconnect an accumulator or co... | 09/21/2010 |
| 7704189 | Starting method for internal combustion engines with a double clutch transmission A method implements a starting process for an internal combustion engine which has a drive unit and a transmission with at least two transmission input shafts and a multiple clutch device, in particular a double clutch device. During the starting process, the first ... | 04/27/2010 |
| 7670262 | Control device and control method for automatic transmission “Threshold A is substituted in a power-on state, “threshold B”, which is lower than “threshold A”, is substituted in a power-off state, and “threshold C”, which is lower than “threshold B” is substituted during a brake operation, as a rapid deceler... | 03/02/2010 |
| 7648440 | Method and apparatus to control operation of an electro-mechanical transmission A method and apparatus are provided to control operation of an electro-mechanical torque transmission device selectively operative in one of a plurality of fixed gear modes and two continuously variable modes, and operative to transmit torque input from a plurality ... | 01/19/2010 |
| 7601095 | Vehicle A vehicle has an engine, an accelerator for controlling the rotary speed of the engine, an axle and a multi-speed transmission for transmitting power from the engine to the axle. The multi-speed transmission includes an odd-numbered speed drive train for an odd-numb... | 10/13/2009 |
| 7510506 | Method and device for controlling gear ratio change in a transmission contained in the drive train of a motor vehicle with gears that can be shifted under power In a parallel manual transmission, an upshifting under power is executed based upon preset operating conditions, for example with a fully depressed accelerator pedal, without an electronically controlled, load-reducing ignition retard. When shifting to a higher gear... | 03/31/2009 |
| 7510507 | Torque converter clutch virtual adapt learn method and system A method of adapting a pressurized fluid supply to a torque converter clutch is provided. The method includes: learning a first pressure point related to an average of ramp pressure and an average of engine torque over a first time period; learning a second pressure... | 03/31/2009 |
| 7431678 | Hydraulic pressure control device for automatic transmission There is provided a hydraulic pressure control device for an automatic transmission having a fail-safe mechanism to cope with an operation malfunction of electromagnetic valves. A first changeover valve that can be switched between a normal state where a drain port ... | 10/07/2008 |
| 7416511 | Gear shift control system of hybrid vehicle In a hybrid-drive electric vehicle, upon request of gear shifting of a transmission (2), a clutch (3) is first disconnected and the transmission (2) is set to a neutral position. The rotating electric generator 4 is then operated in a mot... | 08/26/2008 |
| 7412316 | Method for setting a clutch torque In a method for setting the clutch torque of a clutch, especially a clutch disposed in a drive train of a motor vehicle, the clutch is adjusted using a clutch actuator. This clutch actuator has at least two actuator parts that may be positioned relative to each othe... | 08/12/2008 |
| 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 |
| 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 |
| 7361121 | Control device and method for input clutch of work vehicle A controller serving as determination device determines whether or not a rising speed of the clutch pressure of the input clutch is less than a limit rising speed of the original pressure. A controller serving as original pressure control device adjusts the original... | 04/22/2008 |
| 7357208 | Control system for an at least temporarily four wheel-driven motor vehicle A control unit of an at least temporarily four wheel-driven motor vehicle is provided. The control unit is arranged such that a displacement path for an actuator that actuates a transmission clutch is assigned to a setpoint clutch torque via a characteristic curve, ... | 04/15/2008 |
| 7347802 | Clutch control apparatus for hybrid vehicle A clutch control apparatus for a hybrid vehicle (1) having an engine (2) and a motor (3) as power sources, and an output shaft (13a). The clutch control apparatus includes a clutch device (12) and a clutch control device ( | 03/25/2008 |
| 7341541 | Method to reduce backlash in a drive train A method to reduce backlash in a drive train of a four-wheel drive vehicle, the method including receiving rotational parameters from sensors in the four-wheel drive vehicle, determining a torque reversal in the drive train based on the received rotational parameter... | 03/11/2008 |
| 7338409 | Centrifugal clutch assembly with dedicated maneuvering mode A vehicle power train system includes an engine, a transmission, and a centrifugal clutch assembly that selectively couples an engine output shaft to a transmission input shaft in response to an operator input. An operator selects a desired vehicle-operating mode by... | 03/04/2008 |
| 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 |
| 7334655 | Control system for an at least temporarily four wheel-driven motor vehicle A control unit of a control system for an at least temporarily four wheel-driven motor vehicle is arranged such that a displacement path for an actuator that actuates a transmission clutch is assigned to a setpoint clutch torque via a characteristic curve, and the c... | 02/26/2008 |
| 7329204 | Regenerative control apparatus for vehicles equipped with a lock-up clutch For regenerative generation at deceleration of a vehicle, a regenerative control apparatus for vehicles equipped with a lock-up clutch comprises a control unit for controlling rotary electric machine and the lock-up clutch. When the clutch is in a complete disengage... | 02/12/2008 |
| 7306545 | Transfer case clutch calibration method A method of improving performance of secondary driveline clutches in motor vehicle transfer cases includes the steps of testing each manufactured transfer case to determine the clutch drive current versus torque transfer function, fitting such determined function to... | 12/11/2007 |
| 7306544 | Automatic transmission, control apparatus and control system The thrust load of the friction transfer mechanism is adjusted with an electric actuator, the thrust load of said friction transfer mechanism is be increased with a fixed inclination, at the first stage from the time control is started to the time the predetermined ... | 12/11/2007 |
| 7306543 | Automatic transmission controller An automatic transmission controller has an electronic control circuit, an electromagnetic valve, and a pressure control valve. The electronic control circuit generates a control current. The electromagnetic valve regulates a command pressure in accordance with the ... | 12/11/2007 |
| 7300384 | Methods and devices for controlling a disk clutch Method and device for controlling the position of an automatic disk clutch (3) as a function of the position of a throttle lever (48, 49) arranged in a vehicle is disclosed. In some preferred embodiments, the method is employed when starting the vehicl... | 11/27/2007 |
| 7291091 | Method for clutch control, in particular, for parallel gearboxes with wet clutches or wet dual clutches A method for clutch control for wet clutches includes the following steps: determining whether a viscosity of clutch fluid lies above a predetermine threshold value; when the determined viscosity is above the predetermined threshold value: adaptation of the clutch/g... | 11/06/2007 |
| 7278953 | Transmission shift control method A method is provided for shifting a powershift transmission in a vehicle having an electronic engine control unit and an electronic transmission control unit. The method rapidly reduces off-going clutch pressure to a pressure which is slightly higher than a Predicte... | 10/09/2007 |
| 7270624 | Driving unit for motor vehicle and method for determining the characteristic of a coupling of the driving unit A drive unit for a motor vehicle, comprising a drive engine, a transmission having an intermediate shaft with intermediate shaft brake, and a friction clutch which is engaged between the engine and the transmission and which, via an electronic control unit, is opera... | 09/18/2007 |
| 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 |
| 7247125 | Torque converter controller stuck-on test in a multiplex device A device and method for fluid delivery in a continuously variable transmission that includes a valve assembly, configured to distribute a fluid, having a first position and a second position. A forward clutch, a reverse clutch, and a torque converter are connected t... | 07/24/2007 |
| 7238142 | Lock-up capacity control apparatus and method for torque converter In lock-up capacity control apparatus and method for a torque converter, the torque converter is caused to have a converter state in which a relative revolution between input and output elements of the torque converter is free of limitation in a case where a lock-up... | 07/03/2007 |
| 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 |
| 7235037 | Friction launch control system for a vehicle A launch control system for a vehicle having an engine includes a clutch that selectively enables torque transfer from the engine. A control module determines a launch torque based on a throttle position and an engine speed to achieve a target engine stall speed. Th... | 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 |
