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| Number | Title | Issue Date |
| 8167774 | Process for controlling a twin clutch A process for controlling a twin clutch transmission with two partial drive trains with respectively a friction clutch interposed between an internal combustion engine and the partial drive train is provided. If the transmission capacity of a friction clutch falls b... | 05/01/2012 |
| 8133156 | System and method for controlling machine component temperatures The temperature of a machine component is controlled by transferring heat generated by a torque converter under restricted conditions to the component. The machine includes a circulating fluid system configured to transfer heat from the torque converter to the remot... | 03/13/2012 |
| 8092343 | Method for setting the filling pressure for a clutch A method for determining the filling pressure for a clutch and a hydraulic clutch adapted to conduct said method are suggested where clutch linings are brought into engagement against the force of a clutch release spring by a hydraulic pressure system. The hydraulic... | 01/10/2012 |
| 7896776 | Gear change control device, straddle-type vehicle, and method of controlling gearbox Riding comfort of a vehicle is improved by reducing deceleration and acceleration exceeding the expectation of a rider due to gear changes. A gear change control device calculates current torque being transmitted from a drive-side member of a clutch to a driven-side... | 03/01/2011 |
| 7887458 | Clutch controller, method for controlling clutch, and straddle-type vehicle A clutch controller that transmits appropriate torque during engaging operation of a clutch and prevents excessive increase or decrease in engine speed. The clutch controller performs request follow-up control under which a clutch actuator is actuated based on a dif... | 02/15/2011 |
| 7798940 | Method for determining the filling pressure for a clutch Method for determining the filling pressure for a clutch that comprises clutch linings, a clutch release spring, and a hydraulic pressure system for closing the clutch against the force of the clutch release spring. By several method steps iteratively a set-filling-... | 09/21/2010 |
| 7722500 | Control device and control method for automatic transmission When an N position sensor is ON, even though the N position is selected, the oil pressure supplied to a clutch C1 which is engaged during the transition from the non-running state to the running state is raised in advance to a predetermined oil pressure; and,... | 05/25/2010 |
| 7699749 | Powertrain control apparatus and method A powertrain control apparatus that controls a powertrain including a lock-up clutch, which connects an engine, in which fuel supply may be cut off, directly to an automatic transmission. The control apparatus includes an output unit, a control unit, and a setting u... | 04/20/2010 |
| 7699750 | Method for controlling a manual transmission in the event of a disorderly engine behavior A method for controlling a partially unsynchronized manual transmission, which realizes the increase of a rotational speed of a transmission part to be synchronized during a gear change procedure by connecting one element of the transmission, via a shiftable clutch,... | 04/20/2010 |
| 7691029 | Method for controlling a drive train A method for operation of a drive train having a drive machine and an automatic, unsynchronized gearwheel variable-speed transmission, which can be connected to the drive machine by using an automatic clutch is described. A control device carries out a selection pro... | 04/06/2010 |
| 7678020 | Vehicle control apparatus A vehicle clutch has a pushing member that is energized against a friction plane and transfers power from a driving power source when it touches the friction plane. The location of the pushing member can be retained even when power is shut off. After a signal from t... | 03/16/2010 |
| 7632215 | Transmission downshift swap-shift control An automatic transmission for a vehicle includes a main box controlled using a series of clutches, and an underdrive assembly controlled using a series of clutches and at least one overrunning clutch. In achieving a double-swap downshift from a first transmission â€... | 12/15/2009 |
| 7611441 | Torque transfer control system for power transmission device in a motor vehicle A torque transfer mechanism includes a multi-plate clutch assembly that is operably disposed between a first rotary and a second rotary member. A control system determines a desired quantity of torque to deliver to the second rotary member and controls the clutch to... | 11/03/2009 |
| 7563200 | Transmission system and method for controlling torque transmissions A transmission system having a plurality of gear ratios, a selector assembly for selectively engaging the gear ratios, and a control system arranged to measure the amount of deformation caused by torque in the transmission system in at least one static component or ... | 07/21/2009 |
| 7556587 | Hill hold for a vehicle A vehicle hill hold may be accomplished, for a vehicle having an automated clutch between the engine output and the transmission input, while protecting the clutch from potential excess wear due to overheating. A hill hold may be accomplished by increasing an accele... | 07/07/2009 |
| 7507182 | Controller, control method and control system for controlling a motor vehicle gear-type transmission A controller, control method, and control system for a motor vehicle gear-type transmission enable a friction transmission unit to be controlled to an optimum position according to a particular motor vehicle state or the like. A transmission control unit changes, vi... | 03/24/2009 |
| 7491152 | System and method for controlling engagement of a clutch A control system and method is provided for controlling engagement of a vehicle master clutch (16) in response to a throttle operating parameter. The method includes the steps of determining a throttle operating parameter value and setting an operating mode o... | 02/17/2009 |
| 7476179 | Gear change control device and method A gear change control device is provided for a straddle-type vehicle having a clutch and a transmission. The device includes a clutch actuator configured to engage and disengage the clutch. A transmission actuator is configured to change a gear of the transmission. ... | 01/13/2009 |
| 7473209 | Torque based transfer case control A method for controlling operation of a transfer case clutch in a motor vehicle driveline controlled by an engine throttle having a variable position. The transfer case transmits rotating power to a primary power path and to a secondary power path in response to an ... | 01/06/2009 |
| 7445581 | Control strategy for active torque control A torque transfer mechanism includes a multi-plate clutch assembly that is operably disposed between a first rotary and a second rotary member. A control system determines a desired quantity of torque to deliver to the second rotary member and controls the clutch to... | 11/04/2008 |
| 7419456 | Device for increasing the functional reliability of a hydraulic circuit of a hydraulically operable clutch A known device for increasing the functional reliability for a hydraulic circuit of a hydraulic clutch having a pressure reservoir (25) and a release cylinder (5) which comprises a primary piston (14) and a secondary piston (16). A compen... | 09/02/2008 |
| 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 |
| 7409885 | Method for controlling a twin-clutch transmission The invention concerns a method of controlling a twin-clutch transmission (10). When the torque transmitted in a first transmission path (C1, E2, Z8, Z9, S2, Z3, Z4) reaches an upper limit given by the torque t... | 08/12/2008 |
| 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 |
| 7407463 | Method and system for controlling a braking system equipped with an electric parking brake In a method and system for controlling a braking system, equipped with an electric parking brake, for a motor vehicle, the electric parking brake is released in response to an identification of a moving-off operation. A release instant of the electric parking brake ... | 08/05/2008 |
| 7396314 | Method and device for actively reducing clutch grabbings in a motor vehicle A method and a device with which disturbing vibrations are diminished at least in the height of their amplitude. A control and regulating device (24) and suitable sensors (34, 36, 41) activate a device (7, 11, 15, 23, 29, 30) when previously est... | 07/08/2008 |
| 7387591 | Control method for external control type fan clutch A method is provided for controlling an external control type fan clutch. The method controls the On/Off of an electromagnet-activated valve for an oil feed adjusting hole. The method uses a PID control on the basis of radiator cooling liquid temperature, fan speed,... | 06/17/2008 |
| 7367924 | Method for controlling gear-shifting processes of a powershift gearbox and corresponding powershift gearbox A method for controlling gear-shifting processes of a powershift gearbox which can be coupled to a drive motor and has gear steps including two friction clutches and a plurality of clutches, and at least one gearbox actuator for actuating the gear steps. The method ... | 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 |
| 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 |
| 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 |
| 7347804 | Automatic engaging/disengaging method of a coupling-independent power take-off Automatic engaging method (and disengaging method) for a coupling-independent power take-off (32), which power take-off (32) is driven by an internal combustion engine (1) arranged in a vehicle. The vehicle is equipped with an automatic stage-ge... | 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 |
| 7338408 | Hydraulic circuit and method for controlling said circuit A method for controlling a hydraulic circuit for a twin-clutch transmission, wherein the hydraulic circuit comprises a first and a second clutch that can be hydraulically actuated, the pressures of said clutches being controlled with respective pressure control valv... | 03/04/2008 |
| 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 |
| 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 |
| 7313981 | Reverse gear arrangement in a countershaft transmission A reverse gear arrangement in a countershaft transmission (1, 40, 44) having at least one starting element (2, 41), at least one transmission input shaft (4, 5, 42), one countershaft (22), fixed or idler gear wheels fastened or rotatably ... | 01/01/2008 |
| 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 |
| 7291094 | Driving system for off-road utility vehicle A drive system for a utility vehicle has at least one rear axle, which can be permanently driven from a drive engine via a speed-change gearbox, and a front axle which is operatively connected to the rear axle by an axle engagement clutch that can generally be contr... | 11/06/2007 |
| 7287442 | Six-gear or seven-gear dual-clutch transmission A six-gear or seven-gear dual-clutch transmission (1, 30) comprising two clutches (K1, 2) the input sides of which are connected with one drive shaft (2) of a prime mover and the output sides with each one of two input shafts (3, 4) dispo... | 10/30/2007 |
