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| Number | Title | Issue Date |
| 8167775 | Method for clutch protection Method for protecting a clutch of a vehicle, said vehicle being provided with an engine, drive wheels and an automated manual transmission for transmitting drive power from said engine to said drive wheels. A controller can execute the steps of: sensing a power dema... | 05/01/2012 |
| 8118707 | Method for controlling a belt-type continuously variable transmission and a friction clutch in a vehicular drive line The invention provides for a vehicle drive line provided with an engine (1) capable of generating an engine torque (Te), a continuously variable transmission (2), a driven wheel (5) and two friction clutches (3, 33), a first clutch (3 | 02/21/2012 |
| 8118708 | Method for controlling an automated friction clutch A method for controlling an automated friction clutch arranged in a drive train of a motor vehicle in the force flow between a drive engine (3) and a drive transmission (4), which is configured to close passively by spring pressure and can be disengage... | 02/21/2012 |
| 8062181 | Method and control device for adjusting a rotational speed of a shaft of a gear change transmission In a method and control device for adjusting a rotational speed of a shaft of a gear change transmission of a motor vehicle, a torque required for the acceleration of the transmission and derived from a drive motor is transmitted by means of an automated clutch and ... | 11/22/2011 |
| 7988597 | Method and apparatus for controlling a torque converter clutch A method and apparatus are provided for controlling actuation of a clutch device for a torque converter operative to transmit torque between an engine and a transmission. The method comprises controlling actuation of the clutch device effective to maintain an engine... | 08/02/2011 |
| 7959537 | Valve timing control apparatus A first rotary member rotates with a crankshaft and has a first gear. A second rotary member rotates with a camshaft and has a second gear that is axially shifted from the first gear. A planetary rotary member has third and fourth gears, which are eccentrically mesh... | 06/14/2011 |
| 7931561 | Aggressive torque converter clutch slip control design through driveline torsional velocity measurements A system and method for setting the slip of a torque converter for a plurality of selected engine speeds and transmission gears. The method includes populating a table off-line, typically using a dynamometer, with torque converter slips for a plurality of selected e... | 04/26/2011 |
| 7854683 | Torque converter clutch control A system for controlling a torque converter clutch in a vehicle powertrain includes a controller having an input for receiving powertrain operating parameter information. The controller is configured to determine a torque converter speed ratio based on the powertrai... | 12/21/2010 |
| 7736271 | 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... | 06/15/2010 |
| 7563201 | Transmission system A transmission having a plurality of gear ratios, a selector assembly for selectively engaging the gear ratios, a clutch device for selectively transmitting drive from a drive source to the transmission, and a control system for controlling a clutch torque limit, in... | 07/21/2009 |
| 7530924 | Torque converter bypass clutch control A method of using a torque converter bypass clutch to launch a vehicle, mitigate transient vibration, and mitigate vehicle natural frequency harshness. The method uses the torque converter when the bypass clutch power capacity is approaching its limit, when the vehi... | 05/12/2009 |
| 7513851 | Torque converter clutch slip control A method and system for regulating engagement of a torque converter clutch (TCC) in a vehicle incorporating a transmission that is driven by an engine through a torque converter includes determining a non-linear slip profile based on vehicle operating parameters, ca... | 04/07/2009 |
| 7455619 | Control strategy for avoiding tip-in noise in a powershift transmission In a motor vehicle including a power source, an accelerator pedal, a powershift transmission for producing a selected gear, first and second input shafts, a first input clutch for connecting the selected gear and the first input shaft to the power source, a second i... | 11/25/2008 |
| 7445582 | Method for controlling an actuator of a starting clutch in the automatic transmission of a vehicle A method for the control of an actuator of a starting clutch of a motor vehicle. The actuator is so regulated by a control apparatus that the starting clutch is closed upon the presence of a desire for starting, as well as closed by an adjusted, transmission ratio, ... | 11/04/2008 |
| 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 |
| 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 |
| 7373235 | Method and system for control of an automatic friction clutch arranged between an engine and a gearbox on a motor vehicle An automatic friction clutch, contained in the drive train of a motor vehicle is controlled such that a preset clutch torque can be transmitted. The preset clutch torque is composed of a pilot clutch torque M and a clutch torque Msr, which is dependent on slip. ... | 05/13/2008 |
| 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 |
| 7366638 | Abnormally detecting apparatus for automatic speed changer In a conventional abnormality detecting apparatus, it is impossible to judge a breakdown before the breakdown actually takes place. An abnormality detecting apparatus for an automatic speed changer includes a speed change controlling unit for controlling the automat... | 04/29/2008 |
| 7363833 | Method for referencing a control device of a shift actuator of an automatic transmission and a control device In a method for referencing a control device, containing an incremental sensor, of a shift actuator of an automatic transmission, a clutch that is controlled by a clutch actuator and causes a transmission of torque between the drive motor and at least one vehicle wh... | 04/29/2008 |
| 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 |
| 7357754 | Mechanism and method of controlling an automatic shifting power transmission to effect a first gear launch The present invention provides a mechanism and method of launching a vehicle using a conventional automatic shifting power transmission. By slipping a first gear reaction clutch during a launch, an efficient hydrodynamic fluid drive with a low stall speed may be use... | 04/15/2008 |
| 7357753 | Method for regulating the rotational speed of a clutch-independent power take-off Method for regulating the rotational speed of a clutch-independent power take-off. The power take-off is driven by an engine arranged in a vehicle. The engine is connected to an automatic stagegeared transmission by way of an automated vehicle clutch. At least one c... | 04/15/2008 |
| 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 |
| 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 |
| 7340330 | Hybrid type vehicle driving controller, hybrid type vehicle driving control method and its program The invention has an engine maximum torque calculating processor for calculating plural engine maximum torques showing a maximum value of engine torque, and an engine limit torque calculating processor for calculating a minimum value of the respective engine maximum... | 03/04/2008 |
| 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 |
| 7337052 | Method for automatically controlling a transmission brake of an automatic transmission configured as a countershaft transmission A method for controlling and regulating a transmission brake of an automatic transmission designed as a gear reduction unit in which the rotation speed of a countershaft of the gearbox can be decelerated in an upshift such that it corresponds to the synchronized rot... | 02/26/2008 |
| 7332884 | Electric motor control strategies An electric start system (20) includes a controller (40) that controls operation of a motor (22) used to start a device such as a gas turbine engine (24). In one example, the controller (40) determines when an acceleration rate of ... | 02/19/2008 |
| 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 |
| 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 |
| 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 |
| 7306539 | Method and apparatus for the control of characteristic operating values of a power train A method of controlling at least a fifth characteristic operating value of a motor vehicle power train includes the step of performing an emergency adaptation of at least one of the stored clutch-disengagement thresholds during an operating phase of the motor vehicl... | 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 |
| 7286922 | Method of and apparatus for transmitting torque in vehicular power trains The magnitude of torque which can be transmitted by a bypass clutch between the housing and the turbine of a torque converter between a prime mover, such as an engine, and an automatic transmission in the power train of a motor vehicle is selectively regulatable by ... | 10/23/2007 |
| 7282010 | Engine torque control device An engine torque control device is configured to provide increase engine output torque during shifting, with excessive engine output torque being prevented while shift shock is reduced. The engine torque control device has an automatic transmission control section t... | 10/16/2007 |
| 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 |
| 7255663 | Starting clutch control apparatus There is provided a starting clutch control apparatus which is capable of controlling transmission torque of a starting clutch according to changes in accelerator operated amount without preparing a plurality of data maps of torque coefficients in advance. A clutch ... | 08/14/2007 |
| 7252623 | Method of using a PTO clutch for auxiliary load measurement A method is provided wherein when an auxiliary device is being powered by the PTO driveline the PTO clutch is periodically slowly ramped down in pressure until slippage is detected in the clutch. Slippage is determined by monitoring the shaft speed into the clutch a... | 08/07/2007 |
