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| Number | Title | Issue Date |
| 8152691 | Shift control method for an automatic group transmission A method for controlling shifts in an automated group transmission that comprises a multi-stage main transmission, a multi-stage splitter group connected upstream from the main transmission and a multi-stage range-change group connected downstream from the main tran... | 04/10/2012 |
| 8133155 | Multi-ratio rotorcraft drive system and a method of changing gear ratios thereof A multi-ratio rotorcraft drive system and a method of changing gear ratios thereof are disclosed. According to one embodiment, the multi-ratio rotorcraft drive system comprises a rotor system comprising one or more rotors and one or more engines. Each engine of the ... | 03/13/2012 |
| 8057358 | Control for an electromagnetic brake for a multiple-ratio power transmission that has a brake actuation counter A control system and method for an electromagnetic clutch brake, including an electromagnetic clutch brake actuator coil surrounding a power input shaft for a multiple-ratio transmission in a vehicle powertrain. A protective circuit of the control system normally mo... | 11/15/2011 |
| 7771315 | Method for controlling an automatic transmission A method for the control of an automatic transmission during a change of ratio procedure, wherein the synchronous speed of rotation (SD) for the new transmission gear-stage lies under the no-load speed of rotation (LD) of a drive motor which can be connected to the ... | 08/10/2010 |
| 7387590 | Motor vehicle gear device as well as method for control of a motor vehicle A method for operating a motor vehicle after receiving an acceleration signal in which the motor vehicle power train includes first and the second torque transmission devices connected to first and second subgears. The operational method includes selecting and engag... | 06/17/2008 |
| 7367244 | Operating position select device for automatic transmission An operating position select device has a select lever unit, a mode shift unit to shift operation modes of the automatic transmission, a mechanically connecting means connecting them, and an assist actuator to assist a select lever. A control unit that controls the ... | 05/06/2008 |
| 7343236 | Electronic control system The present invention provides a universal power control module for automatic transmissions. The power control module includes a processor and at least two sensor inputs that convey engine and vehicle data to the processor. This data may include vehicle speed, engin... | 03/11/2008 |
| 7318788 | Gearshift procedure for vehicles with engaged clutch-dependent power take-off Method and arrangement for providing an automatic gearshift procedure for a vehicle with engaged clutch-dependent power take-off (32) when the vehicle is in motion. The power take-off (32) is driven by an engine (1) via an automated disk clutch ... | 01/15/2008 |
| 7311638 | Mechanical automatic transmission apparatus During a period in which a clutch is in a partially engaged state at the time of start of a vehicle, a transmission ECU calculates load acting on the clutch (clutch-absorbed energy). When this load is large, generation of a shift signal based on a gear shift map is ... | 12/25/2007 |
| 7308837 | Automated manual transmission control apparatus An automated manual transmission control apparatus includes: a clutch; a transmission including: an input shaft; an output shaft; at least one forward shift stage gear; at least one synchromesh mechanism; and at least one reserve shift stage gear; an input shaft rot... | 12/18/2007 |
| 7294091 | Transmission A transmission comprises a first transmission mechanism and a second transmission mechanism. When a clutch is in an engaged state, the first transmission mechanism transmits a driving force from the engine to the axle shaft. When a clutch is in a disengaged state, t... | 11/13/2007 |
| 7290460 | Electro-pneumatic switching unit An electro-pneumatic switching unit for a vehicle transmission (6) comprising one splitter group transmission (12) pneumatically switched via valves (36, 38) and one range-change group transmission (14) pneumatically switched via valves (... | 11/06/2007 |
| 7252622 | Transmission, and control system and control method for the transmission When torque transmission through the transmitting torque variable mechanism (e.g., an assist clutch) is changed to torque transmission through a meshing gearing after the gearshift, a controlled variable per unit time when the transmitting torque variable mechanism ... | 08/07/2007 |
| 7225073 | Cruise control for vehicle The present invention relates to a motor vehicle comprising an internal combustion engine and a first electronic control unit (48) for controlling the engine depending on the setting of a manual throttle, an electronic control unit (45) for controlling... | 05/29/2007 |
| 7211028 | Method of controlling a vehicle, apparatus for controlling the same, transmission and apparatus for controlling the same Power train control unit 100 controls friction clutch 203 when shifting from one cogwheel row to the other cogwheel row, sets the target synchronous rotation speed based on the output rotation speed of a transmission and parameters indicative of the st... | 05/01/2007 |
| 7204784 | Apparatus for controlling a gear ratio changing operation in a transmission An apparatus for controlling a gear ratio changing operation in a transmission includes clutch controlling device, a motor generating an assist driving torque, and an assist driving torque controlling device for controlling, in response to a clutch operation, the mo... | 04/17/2007 |
| 7173903 | Vehicle active network with communication path redundancy A vehicle active network (12) communicatively couples devices (14–20) within a vehicle (10). Device operation is independent of the interface (22–28) of the device (14–20) with the active network (12). Additionally, th... | 02/06/2007 |
| 7170853 | Vehicle active network topologies A vehicle active network (12) communicatively couples devices (14–20) within a vehicle (10). Device operation is independent of the interface (22–28) of the device (14–20) with the active network (12). Additionally, th... | 01/30/2007 |
| 7130733 | Control method for an automatic transmission Control method for effecting a gear shift in a stepped automatic transmission with an input shaft and an output shaft for transmitting power between two inertia components at distinct speed ratios with a first power transmission path and a second power transmission ... | 10/31/2006 |
| 7101306 | Bi-directional four-mode clutch for providing low and reverse gear ratios in a transmission A bi-directional overrunning clutch assembly employed in connection with a reduced capacity low friction clutch to provide low and reverse gears in a transmission. The clutch assembly including an inner race, an outer race, and engagement members supported therebetw... | 09/05/2006 |
| 7090615 | Method of controlling a vehicle and system of controlling the same At the time of shifting from one gear train among a plurality of gear trains to another gear train, a transmission for controlling a transfer torque variable mechanism and supplementing torque during shifting, during a period of transferring at least a part of torqu... | 08/15/2006 |
| 7086301 | Apparatus and method of controlling a vehicle A vehicle transmission has a first torque transmission path for transmitting a torque from the engine to an output shaft of the transmission through a first input shaft of the transmission, a first pair of gears and a first mesh type clutch. A second torque transmis... | 08/08/2006 |
| 7021170 | Gear-shifting method for multi-group gearboxes In an automated multi-group transmission consisting of one front-mounted group, one main group and one range group and in which the front-mounted group transmission and the range group transmission comprise a first shifting position for a low-speed total transmissio... | 04/04/2006 |
| 6968144 | Photoconductor drum and drive shaft gear portions of an image forming apparatus An image forming apparatus includes a photoconductor drum in which a first gear portion is formed on the axis of rotation and on which an electrostatic latent image corresponding to a toner image is formed by a rotation in a circumferential direction; a developing r... | 11/22/2005 |
| 6961647 | Method of controlling a vehicle and system of controlling the same Friction clutches 203, 204 and engaging clutches 19, 20, 21 are arranged between an input shaft and an output shaft of a gear type transmission having a plurality of gear trains. A power train unit 100 controls an output shaft torque and an inpu... | 11/01/2005 |
| 6918314 | Shift-by-wire transmission actuator assembly An actuator for a vehicle transmission having both a shift-by-wire mode and a manual override mode includes a motor and a gear assembly driven by the motor when the vehicle transmission is in a shift-by-wire mode. An output member of the gear assembly is configured ... | 07/19/2005 |
| 6909955 | Method of controlling a dual clutch transmission A method of controlling the timing of the shift events of a dual clutch transmission that includes the steps of sensing the current output speed of the transmission, determining the time required to complete each possible shift event within the transmission, and det... | 06/21/2005 |
| 6905009 | Bi-directional clutch having a momentary latching actuator A bi-directional clutch assembly of the present invention is provided that comprises an inner race, an outer race, and an engagement mechanism disposed between said inner race and said outer race. The engagement mechanism is operable to move between a disengaged pos... | 06/14/2005 |
| 6884200 | Shift control method for an automatic transmission An automatic transmission in which a plurality of gear trains is shifted by a shift mechanism which has at least two stages, including stronger and weaker operational force stages. Shift operation of the shift mechanism is started with the weaker operation force, an... | 04/26/2005 |
| 6871131 | Transmission systems A method of changing gear in an automated transmission system of a motor vehicle having a multi-ratio gearbox with an input shaft and an output shaft, a take-up clutch located between the input shaft and an output shaft of an engine, a number of pairs of intermeshin... | 03/22/2005 |
| 6851328 | Control apparatus for transmission A transmission control apparatus includes transmission lines disposed between a pair of transmission shafts and a hydraulic multiple disc transmission clutch disposed on one side of the transmission lines. Power from an engine is transmitted via one of the transmiss... | 02/08/2005 |
| 6819995 | System and method for controlling vehicle braking operation A system for controlling vehicle braking operation includes a mechanism for determining desired service brake force, a mechanism for determining vehicle deceleration, an electronically actuatable engine compression brake unit, an electronically controllable turbocha... | 11/16/2004 |
| 6779417 | Power transmission system A power transmission system having first to third gear pairs, each having an input gear arranged on an input shaft and an output gear arranged on an output shaft. First to third synchromeshes that may disconnect a corresponding one of the first to third gear pairs f... | 08/24/2004 |
| 6770010 | Method of controlling a vehicle, apparatus for controlling the same, transmission and apparatus for controlling the same Power train control unit 100 controls friction clutch 203 when shifting from one cogwheel row to the other cogwheel row, sets the target synchronous rotation speed based on the output rotation speed of a transmission and parameters indicative of the st... | 08/03/2004 |
| 6579208 | Method and apparatus for providing synchronization of low to high shifts in a transfer case The present invention is directed toward a method to digitally control a transfer case through a digital data bus to provide synchronized low to high shift capabilities in vehicles that employ a controller area network (CAN) system. In addition, a transfe... | 06/17/2003 |
| 6577938 | System for selecting between automatic and manual control of a number of gear ratios of a semiautomatic transmission A system for selecting between automatic and manual control of a number of gear ratios of a semiautomatic transmission includes an internal combustion engine coupled to a semiautomatic transmission having a number of manually selectable gear ratios and a ... | 06/10/2003 |
| 6561949 | Coupling assembly and a method for accelerating a vehicle and operating a transmission utilizing the coupling assembly A coupling assembly 10 which selectively causes a primary mass or flywheel 20 be engaged or be coupled to a crankshaft 18 as a transmission gear assembly 23 moves from a first gear position to a second gear position and which further selectively causes th... | 05/13/2003 |
| 6561950 | Control device for a synchromesh automatic transmission A control device for a synchromesh automatic transmission includes: an input shaft driven by a combustion engine; an output shaft coupled to the input shaft by gears; a plurality of groups of transmission gears having different gear ratios and interposed ... | 05/13/2003 |
| 6560521 | Control device and control method for a vehicle At the time of the change-speed, by correcting the torque reducing portion of an output shaft during the change-speed, the revolution number of an input shaft is controlled on the basis of the corrected torque reduction correcting value. Also, the torque ... | 05/06/2003 |
| 6514173 | Method and apparatus of controlling transmission system An automatic transmission system has a switching mechanism for switching a plurality of shift gears and a sub-clutch by which transfer torque is controlled while being transferred from an input shaft to an output shaft. An actual deceleration speed is cal... | 02/04/2003 |
