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| Number | Title | Issue Date |
| 8272460 | Two-wheeled vehicle A two-wheeled vehicle is disclosed. The two-wheeled vehicle may include highway bars. The two-wheeled vehicle may include a steering axis which is tilted relative to a fork axis. The two-wheeled vehicle may be configured in a faring configuration and in a non-fairin... | 09/25/2012 |
| 8136613 | Vehicle control systems and methods Systems for controlling the speed and direction of vehicles such as tractors, including vehicles that have low to zero turning radius capability. Systems include steering and speed coordination systems that control the direction and speed of rotation of vehicle driv... | 03/20/2012 |
| 8056653 | Hybrid electric tool carrier A hybrid utility vehicle includes a tool-supporting frame and an electrical power source driven by an engine. Right and left rear wheels independently driven by permanent magnet electric motors and front wheels electrically steerable over a range of approximately 18... | 11/15/2011 |
| 7992659 | Steering systems, steering and speed coordination systems, and associated vehicles In a broad respect, vehicles that are capable of making a low- to zero-radius turn using the independent rotation of drive wheels and by turning the non-driving steerable structure or structures (such as wheels) with a steering input device (in some embodiments, the... | 08/09/2011 |
| 7708091 | Apparatuses and methods for providing hybrid steering for a vehicle Steering control apparatuses and methods for a vehicle are provided. A steering control apparatus can include a steering shaft drivingly linked to a pair of front wheels of a vehicle. A movable steering handle can also be provided and disposed about the steering sha... | 05/04/2010 |
| 7703561 | Power steering system In order to reduce a steering torque during stoppage of a vehicle, according to the invention, opposite drive torques in normal and reverse directions are applied to a left rear wheel and a right rear wheel when a driver steers a steering wheel in a state where the ... | 04/27/2010 |
| 7686107 | Zero-turn radius vehicle with steerable front wheels The present invention relates to a zero turning radius vehicle having at least one steerable front wheel and a multistage steering input system separately capable of steering the at least one front wheel and selectively driving the drive wheels. A front wheel steeri... | 03/30/2010 |
| 7401871 | Method of controlling an automotive vehicle having a trailer using rear axle slip angle A system and method of controlling a vehicle with a trailer comprises determining the presence of a trailer, determining a vehicle velocity, determining a steering wheel angle, and determining a rear axle side slip angle. When the rear axle side slip angle is above ... | 07/22/2008 |
| 7392121 | Vehicle steering system An automatic parking control is cancelled when a motor current has not yet reached a maximum current value Imax with a steering angle deviation exceeding a deviation threshold value. In addition, the automatic parking control is cancelled when a steering ... | 06/24/2008 |
| 7360614 | Steering control for drive wheels of vehicle In a vehicle, a pair of left and right drive wheels are linked with a steering input device so that the drive wheels are turned in accordance with a driver's steering input force input by a driver to the steering input device. In this course, a steering assistance f... | 04/22/2008 |
| 7341124 | Driving operation device A driving operation device includes an input portion which inputs an amount of operation by the driver, an output portion to which the amount of operation is transmitted and a form modifying portion which modifies an orientation of the input portion based on an outp... | 03/11/2008 |
| 7325636 | Front-wheel drive steering compensation method and system A method of controlling the speed of a right front wheel and a left front wheel on a work machine includes receiving a speed command based at least partially on an operator input and monitoring at least one wheel steering angle of at least one front wheel. A first f... | 02/05/2008 |
| 7318595 | Variable ride control A skid steer vehicle has a chassis with four drive wheels suspended from the chassis that are damped by four damping cylinders. An electronic controller varies the damping of the cylinders in an automatic mode, based on certain operational parameters of the vehicle,... | 01/15/2008 |
| 7316288 | All terrain vehicle with multiple steering modes Methods and apparatus for steering a vehicle are disclosed. A vehicle in accordance with an exemplary embodiment of the present invention is capable of operating in a first steering mode and a second steering mode. The vehicle may comprise an input device capable of... | 01/08/2008 |
| 7314105 | Electric drive axle assembly with independent dual motors An electric drive axle includes a pair of center mounted electric motors that independently drive a pair of laterally spaced wheels. The electric drive axle includes an axle housing assembly that extends between the pair of laterally spaced wheels. Both center mount... | 01/01/2008 |
| 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 |
| 7287619 | Air intake system for off-road vehicle An off-road vehicle includes a frame and four wheels that support the frame. Two seat assemblies are disposed side by side on the frame. The seat assemblies are separated from each other to define a space therebetween. An engine powers the wheels. The engine defines... | 10/30/2007 |
| 7264068 | Steering control system for a skid steer vehicle A skid steer vehicle has a steering controller that monitors the speeds of the left and right wheels and steers those wheels in directions that are calculated to reduce, eliminate or minimize wheel skidding with respect to the ground while the vehicle is turning. | 09/04/2007 |
| 7237629 | Zero-turn radius vehicle with steerable front wheels The present invention relates to a zero turning radius vehicle having at least one steerable front wheel and a multistage steering input system separately capable of steering the at least one front wheel and selectively driving the drive wheels. A front wheel steeri... | 07/03/2007 |
| 7229139 | Control system for brake-steer assisted parking and method therefor A system and method of controlling an automotive vehicle includes determining a steering wheel angle, determining a steering wheel direction, determining a steering wheel angular rate and applying brake-steer as a function of steering wheel angle, steering wheel ang... | 06/12/2007 |
| 7172040 | Riding type mower A work vehicle comprises: a plurality of wheels; a vehicle body supported by the wheels; a transmission case provided on the vehicle body, the transmission case having a first case portion and a second case portion and a middle portion extending between respective l... | 02/06/2007 |
| 7172041 | Drive-by-wire lawnmower The mower has at least two independently driven wheels that are each capable of bi-directional rotation. The at least two wheels are independently driven so that operation of the at least two wheels causes the at least two wheels to independently rotate which propel... | 02/06/2007 |
| 7174093 | Wheel chair drive apparatus and method A control system for a powered wheel chair drive modulates a pulse power delivery signal such that power is delivered gradually at throttle positions corresponding to a low speed, and power is delivered more rapidly at throttle positions corresponding to a higher sp... | 02/06/2007 |
| 7152704 | Four-wheel drive work vehicle A four-wheel drive work vehicle includes an engine, a pair of right and left steerable wheels rotatably driven by receiving power from the engine via a differential mechanism, a pair of right and left non-steerable wheels rotatably driven by receiving power from the... | 12/26/2006 |
| 7117967 | Wheel chair apparatus and method A wheel chair drive apparatus includes a frame having a wheel mount, a battery mount, and a control shaft mount. A drive wheel has a drive motor incorporated within the drive wheel. A battery is in operative communication with the drive motor via a detachable jack. ... | 10/10/2006 |
| 7117962 | Articulated forklift truck An articulated forklift truck for use in narrow aisles comprises a front chassis section (10) having a first pair of ground-engaging wheels (20) and a rear chassis section (12) having a second pair of ground-engaging wheels (22). The fron... | 10/10/2006 |
| 7108096 | Vehicle control system with slow-in-turn capabilities and related method A control system with slow-in-turn capabilities for use with a self-propelled, steerable vehicle, such as a lawn mower, is disclosed. In one embodiment, the system slows the vehicle speed when turns are made beyond a predetermined range and the speed is at or above ... | 09/19/2006 |
| 7077409 | Vehicle suspension A commercial vehicle with a technically simple single wheel suspension for the wheels mounted in wheel supports, guaranteeing safe protection of the cardan shaft driving the wheels from harmful influences, includes a wheel support (8; 33), which ... | 07/18/2006 |
| 7044244 | Multi-wheel vehicle A vehicle comprises a steering operation device, a pair of running-driving wheels, which differentially drive when the steering operation device is manipulated, a pair of steerable running wheels interlocking with the steering operation device, and a steering mechan... | 05/16/2006 |
| 7046917 | Speed controlling device of a motorized cart for a person to ride on A device of a cart includes a control, a speed regulating potentiometer, a microprocessor, a digital-to-analogue converter, a motor controlling unit, and a switch; the control is angularly displaceable and near to handlebars of the cart; the potentiometer is connect... | 05/16/2006 |
| 7040427 | Tiller-steered industrial truck An industrial truck having a steering assembly used to steer the industrial truck about a steering axis when a pivotally attached tiller is swung around the truck by an operator. The steering axis is tilted towards the forks of the truck an angle between 2 and 5 deg... | 05/09/2006 |
| 6968913 | Skid steer vehicle including steering actuators to simultaneously steer one side's wheels A skid steer vehicle includes a left side steering actuator that is coupled to left front and left rear drive wheels to steer the wheels with respect to the chassis, a right side steering actuator that is coupled to right front and right rear drive wheels to steer t... | 11/29/2005 |
| 6951259 | Multi-wheel vehicle A vehicle comprises a steering operation device, a pair of running-driving wheels, which differentially drive when the steering operation device is manipulated, a pair of steerable running wheels interlocking with the steering operation device, and a steering mechan... | 10/04/2005 |
| 6935454 | Valve for a hydraulic drive apparatus An improved valve for use in a hydrostatic drive apparatus for a vehicle such as a zero turn vehicle. For each hydraulic drive system in the vehicle, a valve is located between the high and low pressure sides of the closed hydraulic circuit connecting the hydraulic ... | 08/30/2005 |
| 6935445 | Back-up steering system for track laying vehicles A back-up steering system is provided having a hydraulic pump, an accumulator, a mode control valve, a main solenoid valve, and a pair of back-up solenoid valves. The system is connected, to left and right service brakes. The hydraulic pump and the accumulator are b... | 08/30/2005 |
| 6786296 | Back-drivable steer-by-wire system with positive scrub radius In an embodiment of the present invention, an apparatus for steering a vehicle is disclosed. The apparatus includes a back-drivable steer-by-wire system including a road wheel actuator assembly coupled to a wheel of the vehicle. The road wheel actuator assembly defi... | 09/07/2004 |
| 6789017 | Vehicle steering angle position determination method A system for calculating the actual steering angle position based upon signals received from a relative position steering angle sensor and other vehicle sensors. The system involves calculating a steering angle value based upon a plurality of vehicle models and then... | 09/07/2004 |
| 6694238 | Electric power steering apparatus An electric power steering apparatus for assisting steering by conferring torque generated by an electric motor to a steering mechanism. The apparatus includes: a correction table created based on a result of actual measurement of torque ripple occurring ... | 02/17/2004 |
| 6659216 | Vehicle improved steering A vehicle including an integral transaxle apparatus with axles, a driving hydrostatic transmission (HST), a steering HST, and a differential unit. Driving operating means for slanting operation of a first movable swash plate of the variable displacement d... | 12/09/2003 |
| 6640915 | Vehicle A vehicle, which can be used in particular as an agricultural vehicle and/or for construction purposes, has a vehicle frame, a drive and an undercarriage. The undercarriage (4, 4a) includes on both sides wheels (12, 13) having tires, and/or chain wheels (... | 11/04/2003 |
