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| Number | Title | Issue Date |
| 7779953 | Biasing drive torque to an axle in a motor vehicle A system for transmitting power to vehicle wheels includes a transmission output connected to a first wheel set, a planetary gearset including an input and an output, whose speed is greater than a speed of the gearset input, and a coupler having a variable torque ca... | 08/24/2010 |
| 7690469 | Central differential for a working vehicle Presented herein are four-wheel drive systems incorporating a bi-directional overrunning clutch design to control the torque transmission between front and rear transaxles. In accordance with one aspect of the present invention, there is provided a four-wheel drive ... | 04/06/2010 |
| 7650956 | Vehicle drive control apparatus and method A vehicle drive control for a wheeled vehicle including a first motor generator, and a second motor generator. A planetary gear set includes a first rotating element connected to the first motor generator, a second rotating element connected to the second motor gene... | 01/26/2010 |
| 7628242 | Vehicle limited slip differential A limited slip differential for a vehicle includes an engine, a transmission, a differential mechanism operable to distribute an output from the engine which is transmitted by way of the transmission to one of a pair of left and right front wheels and a pair of left... | 12/08/2009 |
| 7628241 | Turning control apparatus for vehicle A turning control apparatus for a vehicle with improved turning ability and that avoids degradation of acceleration ability is provided. The turning control apparatus comprises: a driving torque controller (31) for adjusting driving torque between a le... | 12/08/2009 |
| 7617902 | Biasing drive torque to a secondary axle in a motor vehicle powertrain A method for transmitting power to the wheels of a motor vehicle includes driveably connecting an output of a transmission to a first set of wheels, varying the magnitude of torque transmitted to an input of a differential mechanism, varying the speed of the input o... | 11/17/2009 |
| 7607506 | Driving force distribution control apparatus of vehicle A driving force distribution control unit 60 calculates front/rear driving force distribution cooperative control addition yaw moment by multiplying front/rear driving force distribution control addition yaw moment by a front/rear driving force distribution c... | 10/27/2009 |
| 7600598 | Biasing drive torque to a secondary axle in a motor vehicle powertrain A method for transmitting power to the wheels of a motor vehicle includes driveably connecting an output of a transmission to a first set of wheels, varying the magnitude of torque transmitted to an input of a differential mechanism, varying the speed of the input o... | 10/13/2009 |
| 7588112 | Bi-directional clutch and vehicle with it A bi-directional clutch to be equipped on a vehicle, which is selectively automatically clutched off for putting the vehicle into a two-wheel drive mode or clutched on for putting the vehicle into a four-wheel drive mode, in correspondence to a condition of the vehi... | 09/15/2009 |
| 7533754 | Hybrid motor vehicle driveline A hybrid motor vehicle (10) has a four wheel drive arrangement in which the front wheels (12 and 13) are driven by the engine (11) in two wheel drive mode and all four wheels (12-15) in four wheel drive mode. The engine is c... | 05/19/2009 |
| 7530421 | Vehicle drive power distribution device A transfer mechanism distributes drive power from a drive power source of a motor vehicle to left and right front wheels and left and right rear wheels of the vehicle. A rear differential mechanism transfers the drive power to the left and right rear wheels. A clutc... | 05/12/2009 |
| 7510041 | Drive axle assembly with torque vectoring drive mechanism A drive axle assembly includes a pair of axleshafts connected to a pair of wheels, and a drive mechanism for selectively coupling a driven input shaft to one or both of the axleshafts. The drive mechanism includes first and second drive units that can be selectively... | 03/31/2009 |
| 7497297 | On demand vehicle drive system An on demand vehicle drive system monitors vehicle performance and operating conditions and controls torque delivery to the vehicle wheels. The system includes a plurality of speed and position sensors, a transfer case having primary and secondary output shafts driv... | 03/03/2009 |
| 7493982 | Control device for a four-wheel drive vehicle A control device for a four-wheel drive vehicle, including: a yaw moment control unit for selecting and applying to a wheel based on a driving state a braking force to generate vehicular yaw moment; a driving force control unit for identifying and reducing excess dr... | 02/24/2009 |
| 7434646 | On-demand four wheel drive system An on-demand four wheel drive system for a vehicle having a front drive train, a rear drive train, and a transfer case. The system includes a sensor system operable to detect the speed of the front drive train and the speed of the rear drive train. The system also i... | 10/14/2008 |
| 7421328 | Vehicle slip state determination system and traveling state control system A vehicle slip state determination system serves to calculate an estimated vehicle speed VB, an estimated vehicle deceleration in the vehicle speed DVB, and each of wheel speed differences between right front and rear wheels and between left front and rear wheels Δ... | 09/02/2008 |
| 7399250 | All-wheel drive train In an all-wheel drive train for a motor vehicle wherein the drive torque of the engine of the motor vehicle is transmitted from the transmission output shaft partially to the rear axle and partially to the front axle via an offset transmission structure and a latera... | 07/15/2008 |
| 7392875 | Four-wheel drive system To provide a four-wheel drive system which improves running performance of an automotive vehicle by inhibiting a driving torque from becoming insufficient upon occurrence of a slip. An R slip sensing means of a DC motor torque calculating means senses a slip ... | 07/01/2008 |
| 7386382 | Steering compensated speed override for vehicle drive system A method of controlling a vehicle drive system is provided for a vehicle having an internal combustion engine, free-wheeling steerable front wheels, driven rear wheels, an infinitely variable transmission (IVT) transmitting torque from the engine to the rear wheels,... | 06/10/2008 |
| 7384366 | Transfer case with torque synchronizer clutching The transfer case reduction gearset is often never used for its original intended function, that is, to provide an additional speed reduction (torque amplification) ratio for the powertrain. This concept allows for the increased use of the transfer case gearset comp... | 06/10/2008 |
| 7384357 | Speed reduction gear train with planetary differential for electric motor axle drive An electric drive unit for a vehicle includes an electric motor, two output shafts, a first speed reduction planetary gearset driven by the motor, a second speed reduction gearset driven by an output of the first gearset, and a compound planetary differential gearse... | 06/10/2008 |
| 7386383 | Differential limiting control apparatus for a vehicle and the method thereof A differential limiting control apparatus for a vehicle has: clutch unit interposed between one rotational shaft and the other rotational shaft for variably transmitting a driving force between the one rotational shaft and the other rotational shaft; target differen... | 06/10/2008 |
| 7383910 | Drive force control method for four-wheel drive vehicle A drive force control method for a four-wheel drive vehicle having front wheels as main drive wheels always connected to a driving source, rear wheels as auxiliary drive wheels whose drive torque is adjustable, and a mechanism capable of adjusting a torque distribut... | 06/10/2008 |
| 7374255 | Control method for four-wheel drive vehicle A control method for a four-wheel drive vehicle such that the control is changed in braking the vehicle, includes the steps of detecting an ON/OFF status of a braking operation, detecting an accelerator opening or throttle opening greater than or equal to a predeter... | 05/20/2008 |
| 7367417 | Floor arrangement for off-road vehicle An off-road vehicle has a frame with a floorboard extending laterally over a middle region of the frame. The floorboard has a upward projection that defines a tunnel. At least a portion of an air intake system of an engine of the vehicle is positioned within the tun... | 05/06/2008 |
| 7367247 | Change-speed control system for utility vehicle having stepless change-speed apparatus for speed-changing engine output and transmitting the speed-changed output to traveling unit A change-speed control system is provided for a utility vehicle having a stepless change-speed apparatus for speed-changing an engine output and transmitting the speed-changed output to a traveling unit. The system includes an engine speed governor for adjusting spe... | 05/06/2008 |
| 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 |
| 7354373 | Vehicle drive unit, and four-wheel-drive vehicle drive unit A vehicle drive unit including (a) a transversely-mounted engine, (b) a transmission receiving an output of the engine and having an output shaft, and (c) a differential gear device including a ring gear and arranged to transmit an output of the transmission to a pa... | 04/08/2008 |
| 7347490 | Vehicle floor structure and vehicle body frame structure In a vehicle floor structure, a subsidiary frame is provided between a front frame and a seat frame and at a position higher than a lower frame, for supporting thereon a floor section. Step support frame is provided laterally outwardly of the lower frame, for suppor... | 03/25/2008 |
| 7343998 | All-terrain vehicle with subtransmission detachably mounted to the engine An all-terrain vehicle (ATV) has a subtransmission detachably fastened to an engine casing. The engine crankshaft includes a drive pulley connected via a belt to a driven pulley in the subtransmission, thus providing a continuously variable transmission (CVT) betwee... | 03/18/2008 |
| 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 |
| 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 |
| 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 |
| 7328943 | Adjustable storage seat for recreation and utility vehicles An adjustable storage seat for recreation and utility vehicles is disclosed. The adjustable storage seat may be used for snowmobiles, watercraft, all-terrain vehicles, or other similar small vehicle intended for entertainment and transportation. The adjustable stora... | 02/12/2008 |
| 7328955 | Control device for four-wheel drive vehicle When supplied with a signal for correcting a vehicle behavior is input from a brake controller, an electrically-driven parking brake controller releases actuation of an electrically-driven parking brake when the electrically-driven parking brake is actuated. When su... | 02/12/2008 |
| 7325640 | Power transmission system for four-wheel drive vehicle A power transmission system for a four-wheel drive vehicle comprises a power transmission mechanism provided in a vehicle arranged such that power is always transmitted to one of two pairs of wheels consisting of a pair of front wheels and a pair of rear wheels, to ... | 02/05/2008 |
| 7326142 | Partition structure of power train device A partition structure of a power train device is provided with: a second differential coupled with an external first differential so as to receive a driving force input to the first differential; a case having a first end facing to the first differential, a second e... | 02/05/2008 |
| 7326144 | Vehicle transmission systems A vehicle transmission system includes an input shaft connected to a differential mechanism, which has two output shafts. The two output shafts carry first and second coaxially mounted sun wheels, respectively, of an epicyclic gear system which mesh with first and s... | 02/05/2008 |
| 7322436 | Automatic axle traction control An automatic axle engagement system utilizes wheel speed sensors, engine control, and braking control to provide optimal engagement of a front drive axle to provide all wheel drive under poor driving conditions. The system includes a transfer case that is coupled to... | 01/29/2008 |
| 7316304 | Four-wheel drive center disconnect electric actuator A four-wheel drive center disconnect electric actuator is provided. The actuator includes a one-way motor that actuates a cam mechanism for causing engagement and disengagement of the center disconnect. The actuator achieves improved reliability and efficiency throu... | 01/08/2008 |
