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| Number | Title | Issue Date |
| 8132638 | Rear drive module wheel disconnect A wheel disconnect system is provided including a rear drive module and a constant velocity joint housing. The rear drive module includes a housing, at least one actuator, and at least one dog clutch. The dog clutch includes a first portion configured to move when t... | 03/13/2012 |
| 8047323 | Motor vehicle with disconnectable all-wheel drive system A vehicle with primary and secondary drivelines and a power take-off unit (PTU). The primary driveline has a first differential that is configured to distribute power to a first set of wheels. The PTU has a PTU input, a PTU output and a synchronizer for selectively ... | 11/01/2011 |
| 8042642 | Motor vehicle with disconnectable all-wheel drive system A vehicle with a primary driveline that is configured to distribute rotary power to a first set of vehicle wheels, a power transmitting device and a secondary driveline that is configured to distribute power to a second set of vehicle wheels. The power transmitting ... | 10/25/2011 |
| 7992668 | Low-angle spline coupling for power transmission units A power transmission device for a four-wheel drive vehicle includes an input shaft adapted to be driven by a power source. A first output shaft is rotatable about a first axis and adapted to transmit torque to a first driveline. A second output shaft is adapted to t... | 08/09/2011 |
| 7975796 | Reduced friction differential disconnect for a motor vehicle An axle disconnect system for selectively connecting or disconnecting a wheel-side shaft and a differential-side shaft having a common axis of rotation in a drivetrain of a motor vehicle. In the axle disconnect an output gear is splined to the wheel-side shaft on an... | 07/12/2011 |
| 7954586 | ATV engine power output conversion mechanism Disclosed is an all-terrain vehicle (ATV) engine power output conversion mechanism, which is characterized primarily by linking a first transmission assembly to the output terminal of the engine, where the central shaft of the first transmission assembly is provided... | 06/07/2011 |
| 7896120 | Small-sized vehicle with improved drivetrain A small-sized vehicle (SSV) capable of inhibiting a differential unit from becoming large in a vertical direction includes an engine, a rear output shaft portion arranged to extend rearwardly of the engine and serving to transmit a driving force of the engine rearwa... | 03/01/2011 |
| 7841438 | Turbocharger activated clutch A vehicle may have an engine that provides power for locomotion; a plurality of ground engaging wheels; a clutch assembly connected to the engine and connected to at least one of the ground engaging wheels; and a turbocharger assembly connected to the engine and con... | 11/30/2010 |
| 7836993 | Device for selecting a hydraulic circuit overall capacity A hydraulic circuit including a first motor set, and a second motor set for driving vehicle-moving means situated one behind the other. The circuit has first, second, third, and fourth main ducts for feeding the motor sets in parallel. The device includes a selector... | 11/23/2010 |
| 7806220 | Torque distributing drive mechanism for motor vehicles A drive axle assembly includes first and second axleshafts and a drive mechanism coupling a driven input shaft to the axleshafts. The drive mechanism includes a differential assembly, a planetary gear assembly operably disposed between the differential assembly and ... | 10/05/2010 |
| 7793749 | Method for operating a drive train of a vehicle A method for operating a drive train of a vehicle with a drive engine, a brake system, at least two vehicle cross-shafts of a first vehicle axle with at least two wheels. The cross-shafts being actively connected via a transverse distributor gear and being driven by... | 09/14/2010 |
| 7779952 | Drive system and an axle for a vehicle driveline, and a vehicle comprising the driveline The invention relates to a drive system for a vehicle driveline comprising a pair of interconnected first transverse drive shafts (31a, 31b) extending in opposite directions, each of which supports a ground engaging member, and a first ar... | 08/24/2010 |
| 7757802 | Connectable four-wheel drive vehicle A connectable four-wheel drive vehicle includes an engine having a gear shaft; two main drive wheels connected permanently to the drive shaft by interposition of a gearbox having a first clutch; and two secondary drive wheels selectively connectable to the drive sha... | 07/20/2010 |
| 7690468 | Drive switching mechanism for vehicle To provide a drive switching mechanism for a vehicle which allows the number of parts to be reduced by simplifying the structure for 2WD/4WD switching and differential lock switching. In a drive switching mechanism for a vehicle which enables 2WD/4WD switching and d... | 04/06/2010 |
| 7597168 | Low engine speed steering performance A hydraulic system for a work vehicle including a manifold assembly configured to prioritize hydraulic fluid flow to priority functions over a wide range of engine speeds. ... | 10/06/2009 |
| 7503416 | Torque distributing drive mechanism with limited slip A drive axle assembly includes first and second axleshafts and a drive mechanism coupling a driven input shaft to the axleshafts. The drive mechanism includes a differential assembly, a planetary gear assembly operably disposed between the differential assembly and ... | 03/17/2009 |
| 7490690 | Control device for front-and-rear wheel drive vehicle A control device is provided for electrically controlling a drive power transmission device arranged on a driving power transmission path of a front-and rear wheel drive vehicle thereby to switch the drive mode of the vehicle selectively to either of a two-wheel dri... | 02/17/2009 |
| 7422545 | All-terrain vehicle reverse gear protection A reverse system for an all-terrain vehicle (ATV) having an engine and an engine drive shaft, a reverse activator, an engine speed limiter, and an override switch. The reverse activator is coupled to the drive shaft. The reverse activator activates operation of the ... | 09/09/2008 |
| 7421324 | Drive system switching control method In a drive system switching control method of an automotive four-wheeled vehicle for switching two drive systems comprising a two-wheel drive and a four-wheel drive. The method has a step of detecting a steering angle, and a step of inhibiting the drive system switc... | 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 |
| 7395891 | Engine torque truncation method for a four-wheel drive vehicle A four wheel drive powertrain control for an automotive vehicle is disclosed. It includes a torque transfer case that distributes power from an engine-powered transfer case mainshaft to a secondary driving axle through a friction clutch as power is distributed direc... | 07/08/2008 |
| 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 |
| 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 |
| 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 |
| 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 |
| 7338403 | Torque coupling with power-operated clutch actuator A torque transfer mechanism and a control system are disclosed for adaptively controlling the transfer of drive torque between first and second rotary members in a power transmission device of the type used in motor vehicle driveline applications. The torque transfe... | 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 |
| 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 |
| 7313943 | Adjustable encoder for clutch actuation control system An adjustable position sensor is provided suitable for use with a clutch actuation control system. The position sensor includes: a rotatable shaft adapted to engage a control gear of the clutch actuation control system; and an encoder having a position indicator adj... | 01/01/2008 |
| 7309301 | Transaxle having a differential mechanism and on-demand transfer clutch A powertrain for transmitting power to the drive wheels of a vehicle includes a transaxle case containing a transaxle drive mechanism for producing variable ratios of a speed of its output and a speed of its input, a differential mechanism for transmitting power bet... | 12/18/2007 |
| 7291083 | Inter-axle differential assembly An inter-axle differential assembly includes a forward side gear and a rear side gear that are supported by an input shaft. The forward and rear side gears are in meshing engagement with a plurality of inter-axle differential pinion gears that are supported on a spi... | 11/06/2007 |
| 7290633 | Steering responsive wheel drive system A vehicle drive speed control system is provided for a vehicle having driven rear wheels, driven steerable front wheels, a powertrain for driving the front and rear wheels at controllable speeds. A control unit controls the powertain so that a front/rear wheel speed... | 11/06/2007 |
| 7287612 | Drive system for vehicles A drive system for vehicles, especially for commercial vehicles such as agricultural or industrial tractors, the vehicle having at least one first wheel that is driven by an associated axle or single-wheel drive motor and at least one second wheel, in the drive trai... | 10/30/2007 |
| 7278946 | Power transfer device with overrunning mode clutch A controllable, multi-mode, bi-directional overrunning mode clutch and a shift system adapted for use in a power transfer assembly for transferring drive torque from a primary driveline to a secondary driveline so as to establish a four-wheel drive mode. The mode cl... | 10/09/2007 |
| 7276015 | Device for engine-driven goods vehicle Method and device for providing, in an engine-driven goods vehicle, at least two driving wheels (9, 10, 51, 52) and at least one differential (5, 6, 45, 46, 47) arranged between the driving wheels (9, 10, 51, 52). The device includes an engine c... | 10/02/2007 |
| 7271555 | Vehicle electrical assist apparatus and kit for same Apparatus for installation in new motor vehicles or for retrofitting into existing motor vehicles, including an electric motor coupled to a drive shaft and a controller for the motor. The existing vehicle battery and/or an auxiliary storage battery can be used to po... | 09/18/2007 |
| 7264078 | Calibration method for inter-axle differential control system A vehicle includes steerable front wheels, an interaxle differential for transmitting torque from an engine to the front wheels and to rear wheels. The differential includes a controllable clutch operable to control a ratio of front wheel speed to rear wheel speed. ... | 09/04/2007 |
| 7259551 | Position sensing for moveable mechanical systems and associated methods and apparatus Position sensing of movable elements including but not limited to machine components is disclosed. Motion of a movable element can produce motion of a magnetic field, which can be detected by magnetic sensors. The motion and/or variations of a magnetic field and/or ... | 08/21/2007 |
