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| Number | Title | Issue Date |
| 7828093 | Vehicle controller, vehicle and vehicle control method A controller for a vehicle including at least one motor driving wheels, an inverter driving the motor, and a boosting converter supplying a dc power supply current to the inverter, is provided with a control portion performing rectangular wave control and non-rectan... | 11/09/2010 |
| 7389848 | Hydraulic power steering assistant The invention generally relates to an improvement of conventional Hydraulically Power Assisted Steering system (HPAS-system) arranged to supply a steering assist force to the steering assembly of a vehicle as a response to a torque applied by a driver to the steerin... | 06/24/2008 |
| 7379802 | Method of damping the parasitic vibrations coming from the front axle assembly of a motor vehicle The invention relates to a method for motor vehicles provided with an electrical sero steering controlled by an electronic processor. The method comprises using an electrical signal within the processor which has at least one component image of the parasite vibratio... | 05/27/2008 |
| 7311172 | Straddle carrier with power steering A steering system for a straddle carrier includes two side supports with steerable wheels, braces, a hoisting gear, an an upper frame. An operator's cab having a steering wheel is disposed at the upper frame. A servo motor with an inverter is mounted in operative co... | 12/25/2007 |
| 7278511 | Controller for steering a vehicle 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... | 10/09/2007 |
| 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 |
| 7258194 | Vehicle steering system having a rear steering control mechanism A vehicle steering system includes a steering input device, a front steering subsystem, a rear steering subsystem, a first force transmission route, a steering control mechanism, a second force transmission route, and a third force transmission route. The front stee... | 08/21/2007 |
| 7252299 | Steering system for crane A steering system (10) for a vehicle, such as a gantry crane (12). The gantry crane (12) generally includes a support structure (14) having a first front wheel (32) and a second opposing front wheel (36) connected proximate ... | 08/07/2007 |
| 7207580 | Precision steer wheel control system with remote trim valve assembly A steer wheel control system having a centering unit for holding center by resisting off-center movement of the steered wheels of a vehicle and returning them to a selected center position after each such movement, and a trim unit for remotely varying the selected c... | 04/24/2007 |
| 7207579 | Precision steer wheel control system with external solenoid A steer wheel control system having a centering unit for holding center by resisting off-center movement of the steered wheels of a vehicle and returning them to a selected center position after each such movement, and a trim unit for remotely varying the selected c... | 04/24/2007 |
| 7206720 | Computer-controlled auxiliary fuel tank system with multi-function monitoring system and user calibration capabilities This invention is directed toward a computer-controlled auxiliary fuel tank system that works with both gas and diesel-fueled vehicles, and can operate independently, or in combination with an auxiliary fuel tank, auxiliary fuel pump, sending unit, check valves, inl... | 04/17/2007 |
| 7195249 | Method of controlling actuator assembly The present invention provides a method of controlling an actuator assembly for suspension systems. The actuator assembly control method of the present invention is possible to control the actuator assembly according to conditions of vehicle velocity and steering an... | 03/27/2007 |
| 7184869 | Electric vehicle steering/drive control method In steering control for individually controlling wheel steering angles α1, α2, α3, and α4 of a vehicle in accordance with a condition equation for forming a prescribed mode, one of the condition equation variables is u... | 02/27/2007 |
| 7168724 | Steering system for crane A steering system (10) for a vehicle, such as a gantry crane (12). The gantry crane (12) generally includes a support structure (14) having a first front wheel (32) and a second opposing front wheel (36) connected proximate ... | 01/30/2007 |
| 7149615 | Absolute steering angle detection device and absolute steering angle detection method for electric power steering device A steering angle θt detected by the torque sensor is read at S900. Then, an electrical angle θm corresponding to a motor rotational angle is read at S902. At S908 through S922, motor rotational numbers are calculated based on θt, θm a... | 12/12/2006 |
| 7096993 | Steering mechanism In a steering mechanism for a motor vehicle having a steering wheel with a steering shaft connected to a steering gear arrangement, the steering shaft comprises a first vibration damping element for accommodating and attenuating vibrations with relatively low amplit... | 08/29/2006 |
| 7092805 | Steering apparatus for steerable vehicle A steering apparatus for a steerable vehicle includes a steering actuator, a steering input unit, a disturbance determination section, and a steering controller. The steering actuator is configured to generate a steering effort to regulate a steering output of the v... | 08/15/2006 |
| 7073620 | Vehicle steering system having a rear steering control mechanism The vehicle steering system includes front vehicle motive members, rear vehicle motive members, a steering input device, a front steering subsystem, a rear steering subsystem and a rear steering control mechanism. The front steering subsystem is operably coupled to ... | 07/11/2006 |
| 7073622 | On and off road steering ratios A steering system (10) for a motor vehicle comprising a steerable wheel (12) defining a steering angle (20), a powered actuator (14) controlling the steering angle (20) and a steering wheel (16) providing a driver input cont... | 07/11/2006 |
| 6965304 | Tire information obtaining device, method for obtaining tire information and tire information obtaining program A vehicle wheel speed is calculated based on a vehicle wheel speed signal outputted from a vehicle wheel speed sensor and a change width w which is an amplitude of a time change component of the calculated vehicle wheel speed. When the calculated change width w is e... | 11/15/2005 |
| 6945353 | Variable ratio steering gear A rack (1) and pinion (4) steering gear for a vehicle in which the steering angle ratio varies as a function of at least both the steering wheel angle input by the driver and vehicle speed. The steering gear comprising a rack (1) laterally displ... | 09/20/2005 |
| 6941207 | Steering angular velocity detecting device Operates steering angular velocity in first steering angular velocity calculating unit and second steering angular velocity calculating unit, by using steering angle signal from steering angle generating unit, and outputs steering angular velocity by switching them ... | 09/06/2005 |
| 6640171 | Motor vehicle with supplemental rear steering having open and closed loop modes A rear steer control for a motor vehicle considers vehicle velocity in three ranges and provides an out of phase rear steer angle in open loop control within a low velocity range for oversteer assistance of parking and similar vehicle maneuvers, an in pha... | 10/28/2003 |
| 6557658 | Forklift having transverse travel system During ordinary travel, a direction change cylinder (51) is actuated by an orbit roll (58) by turning a steering wheel (16) right and left, so that the rear wheels (4) can be turned for direction change in response to the operation of the steering wheel. ... | 05/06/2003 |
| 6539329 | Apparatus for detecting rotational angle by employing two or more detection signals based on rotational angle and rotational direction of rotating member A rotational angle detecting apparatus having a rotation detector that outputs, as a rotor coupled to a rotating member rotates, first and second detection signals, which have predetermined amplitudes, the same cycle, and a phase difference of a quarter w... | 03/25/2003 |
| 6442463 | Fuzzy steering controller A fuzzy steering controller for wheel-type agricultural vehicles with an electrohydraulic steering system is disclosed. The fuzzy controller was developed based on a common-sense model of agricultural vehicle steering. The controller implements steering c... | 08/27/2002 |
| 6345682 | Valve arrangement for power-assisted steering systems The invention relates to a hydraulically assisted steering system for a motor vehicle. Because there is associated with the hydraulic system an electromechanical valve 12 which, in the open state, hydraulically indirectly or directly connects the working ... | 02/12/2002 |
| 6164406 | Multiple-axle steering system for agricultural harvesting machines A multiple-axle steering system for an agricultural machine with at least one primary-controlled axle and at least one secondary axle, where the latter's steering deflection angle varies along a progressive characteristic curve as a function of the primar... | 12/26/2000 |
| 6097286 | Steer by wire system with feedback A system provides feedback to an operator of a steer-by-wire system. In steer-by-wire systems, there is no direct mechanical connection between the vehicle steering wheel and the steering gears. The present invention utilizes a sensor to sense torque valu... | 08/01/2000 |
| 6076349 | Hydrostatic automotive or high speed steering system A full fluid-linked steering system, especially for use in on-highway steering, in which the system includes a fluid controller (21) including a fluid meter (65) operable to provide follow-up movement to controller valving (87,89), in response to the flow... | 06/20/2000 |
| 6073067 | Method for controlling a rear wheel steering device of a front and rear wheel steering vehicle In a method for controlling a rear wheel steering device of a front and rear wheel steering vehicle, the target computed rear wheel steering angle is defined as a value smaller than the normal computed target rear wheel steering angle when the load of the... | 06/06/2000 |
| 6050359 | Steering system for vehicle A vehicle steering system includes a first steering mechanism for a manual steering mode and a second steering mechanism for an automatic steering mode. A controller steers the vehicle in accordance with information on driving environment, with the second... | 04/18/2000 |
| 5964814 | Steering angle adjusting device for a motor vehicle The invention relates to a steering angle adjusting device with an operating element for adjusting the steering angle as a function of a corresponding operating element actuating parameter. According to the invention, steering angle adjustment takes place... | 10/12/1999 |
| 5960694 | Hydrostatic power steering system having reduced wheel slip A hydrostatic power steering system comprising a fluid motor (19) which receives pressurized fluid from a controller (17) in response to the rotation of a vehicle steering wheel (W). As the motor (19) or the steered wheels reach the stops, control logic (... | 10/05/1999 |
| 5953978 | Hydraulic power steering system The invention relates to a hydraulic power steering system for motor vehicles, in the case of which the manual steering wheel is normally connected only by way of a control system with respect to the drive with a servomotor operating the steered vehicle w... | 09/21/1999 |
| 5799259 | Vehicle with steerable front and rear wheels The present invention relates to a method for steering a vehicle (1) with steerable front and rear wheels (2, 3), in which the angle (ଲ) of the rear wheels (3) is set as a function of the steering angle () of the front wheels (2) and other pa... | 08/25/1998 |
| 5781870 | Vehicle steering angle control device A vehicle steering angle control device which accurately guides a vehicle along a predetermined drive course by accurately controlling a steering angle of the vehicle based on a degree of curvature of a curved course on which the vehicle is currently runn... | 07/14/1998 |
| 5734570 | Wheeled vehicle steering system for steering the rear wheels of a vehicle The present invention relates to a steering system for the rear wheels (13,14) of a vehicle comprising an actuator (18) for steering the rear wheels (13,14), sensor unit for measuring vehicular parameters (e.g. a vehicle speed sensor (20), an acceleromete... | 03/31/1998 |
| 5718304 | Four-wheel steering system for vehicle A four-wheel steering system for a vehicle including a front wheel Steering part having a front direction control valve having ports which close and open in accordance with a rotating direction of a steering wheel, and a front actuator for pushing or pull... | 02/17/1998 |
| 5607028 | All-wheel steering system A full-time all wheel steering system is provided whereby the rear wheel angle is determined by the front wheel angle and a relational curve, polynomial equation or set of tabulated values. The front wheel angle is measured and the desired rear wheel angl... | 03/04/1997 |
