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| Number | Title | Issue Date |
| 7404465 | Cruise control system for electric wheelchair A cruise control system for an electric wheelchair includes: a drive unit for driving the electric wheelchair; a user control unit for transmitting user control signals; a controller selectively operable in a normal control mode for controlling the drive unit such t... | 07/29/2008 |
| 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 |
| 7258187 | Torque vectoring axle 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... | 08/21/2007 |
| 7044258 | Direct drive suspension A skid steer vehicle is supported on four gearboxes that function both as control arms and as speed reduction gearboxes. Each side of the vehicle's chassis has two gearboxes to which it is coupled. A hydraulic motor is fixed to each side of the chassis to drive the ... | 05/16/2006 |
| 7000724 | Skid steer vehicle with bogie suspension A skid steer vehicle has a suspension that includes two bogies pivotally connected to the sides of the vehicle and extending fore-and-aft along each side of the vehicle. The bogies are pivotally connected to the vehicle in the middle and have a wheel mounted at each... | 02/21/2006 |
| 6817434 | Active hydraulically actuated on-demand wheel end assembly The vehicular axle assembly includes an input shaft, a drive gear assembly connecting the input shaft to a pair of output shafts, pair of opposite wheel ends mounted to the outboard ends of the output shafts, a pair of wheel end disconnect assembly disposed between ... | 11/16/2004 |
| 6644429 | Hydrostatic auxiliary drive system A dual path hydrostatic drive system having an electronic auxiliary drive auxiliary drive controller controlling the hydraulic output of left and right variable displacement pumps in response to the speed of the main drive wheels and a speed ratio signal ... | 11/11/2003 |
| 6612416 | Motor vehicle with an automated torque-transfer system A motor vehicle has an automated clutch (2) and/or an automated transmission (3) that are operated by an actuator (11, 8) through control commands of a control device (7). At least some of the control commands depend on sensor input indicating whether or ... | 09/02/2003 |
| 6422333 | Vehicle driving arrangement A vehicle driving arrangement is provided which has at least two driven wheels, the driving torques of which can be individually regulated by a control device, the control device being connected to a sensor arrangement comprising at least one sensor. Usin... | 07/23/2002 |
| 6227326 | Variable displacement hydrostatic drive for tractors A splitter gearbox for a four wheel drive, hydrostatically driven tractor integrates both the input drive train and the output drive train into a single gearbox. The drive mechanism eliminates the need for a separate mechanical gearbox by establishing pre... | 05/08/2001 |
| 6189668 | Rotational output control system A gear pump mechanism shown in a variety of applications to control rotational output. Control of the output from the gear pump and feed to the gear pump of hydraulic fluid or oil can be controlled to establish conditions from free wheeling to fully locke... | 02/20/2001 |
| 5505278 | Four-wheel drive and steering system for dropframe vechicles A four wheel drive and steering system for a motor vehicle includes a splitter gear assembly coupled to the transmission for splitting rotational power between the front wheels and one set of wheels of a tandem rear wheel vehicle. A first drive train rota... | 04/09/1996 |
| 5388658 | Integrated torque and steering control system In a preferred embodiment, the present invention relates to automatic vehicle control systems for controlling individual wheel torque and steering angle. Control is provided in response to desired forward velocity, desired steering angle, actual angular v... | 02/14/1995 |
| 5219412 | Method and apparatus of moving bowling-lane maintenance machine The present invention provides a bowling-lane maintenance machine having a driving mechanism which includes four turnable drive units and four lift cylinders. Each of the drive units includes a lane running wheel, a ride-on-approach and transverse running... | 06/15/1993 |
| 5148883 | Regenerative braking electric vehicle with four motors An electric vehicle is equipped with four electric motors, one for driving each of the four wheels, load sensors for detecting the loads applied to the wheels, and a control unit. The control unit determines the driving forces distributed to the wheels up... | 09/22/1992 |
| 4962821 | Discrete drive system for a skid steer loader The present invention is directed to a discrete drive system for a skid steer loader comprising a pair of independent transmission cases interconnected by a plate member at a spaced relationship. The transmission cases enclose chain and sprocket drives fo... | 10/16/1990 |
| 4862988 | Four wheel drive working vehicle A four wheel drive working vehicle comprises a first shaft for driving rear wheels, and a second shaft for driving front wheels. The first and second shafts are coaxially and relatively rotatably supported by a transmission case. The first shaft carries a... | 09/05/1989 |
| 4766969 | Three part propeller shaft assembly incorporating four hooke joints having opposed phases A vehicle has an engine and a driven differential. This three part type propeller shaft assembly includes a first propeller shaft element, a second propeller shaft element, and a third propeller shaft element. A first joint incorporating a Hooke joint rot... | 08/30/1988 |
| 4566553 | Agricultural work vehicle A four-wheel drive agricultural tractor with independently steered ground engaging wheels supporting a flat, extensible load supportive frame includes an operator's cab that is adapted to face the direction of travel. Mounted under the frame is an interna... | 01/28/1986 |
| 4527655 | Drive chain adjuster A skid steer loader having transversely spaced wheel assemblies driven through a drive chain entrained around a tensioning idler is disclosed wherein the tensioning idler is mounted in a pair of arms movably positionable by an adjusting mechanism to contr... | 07/09/1985 |
| 4245712 | Transmission system for the drive wheels of vehicles, notably lift trucks Device for transmitting motion to the wheels of a vehicle having drive axles by means of two motors generating the driving power, one motor driving a speed reducing mechanism associated with each drive wheel of the vehicle and the other motor also driving... | 01/20/1981 |
| 4233857 | Multiple speed transmission with auxiliary transfer drive A multiple speed countershaft transmission with a transfer gear drive driven by one of the countershaft gearsets having a gear on the output shaft driving at the output shaft speed to provide an auxiliary power takeoff from the transmission.... | 11/18/1980 |
| 4063609 | Four wheel drive power train A power train having an internal differential for transferring power to four driven wheels of vehicles having an integral combustion engine, a transmission, and paired front and rear wheels comprises a first pulley drive system to interengage the internal... | 12/20/1977 |
