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| Number | Title | Issue Date |
| 8066091 | Steering system A steering system, comprising: an input cylinder having a first hydraulic chamber and a second hydraulic chamber; a transmission mechanism, wherein a transmission efficiency for converting and transmitting a linear motion of the input cylinder to a rotary motion of ... | 11/29/2011 |
| 7980353 | Steering system for controlling the turning angle of the steering wheels of a vehicle A steering system is provided for controlling the turning angle of the steering wheels of a vehicle. The steering system includes two electro-hydraulic circuits each including an actuator, both actuators being mechanically coupled and acting simultaneously on the tu... | 07/19/2011 |
| 7963361 | Steering axle transport positioning structure and method A steering axle assembly of a work machine such as an agricultural harvester includes telescoping axles and hub assemblies on the telescoping axles, with front and rear hydraulic cylinders for axially and angularly adjusting positions of the wheel hub assemblies, in... | 06/21/2011 |
| 7918304 | Steering assist for a rear caster wheel on a work machine A steering arrangement for a work machine includes a frame, at least one caster wheel assembly carried by the frame, at least one turn assist cylinder, and a turn assist arrangement. Each turn assist cylinder is coupled between the frame and a corresponding caster w... | 04/05/2011 |
| 7798280 | Hydraulic steering system for a vehicle A steering system for an agricultural vehicle with a hydraulic steering motor incorporates an internal pump, a distribution valve, an input shaft which in use is coupled for rotation by the steering shaft of a vehicle steering wheel, and connectors for hydraulic lin... | 09/21/2010 |
| 7694775 | Power steering gear cooling A power steering gear for a heavy vehicle includes a housing and a flow path for a power steering fluid. A heat exchanger is mounted to the housing or is a part thereof. The heat exchanger includes a first flow path for the power steering fluid and a second flow pat... | 04/13/2010 |
| 7686124 | Vehicle steering systems A vehicle steer by wire system which has a steering wheel for setting a desired turn angle of a vehicle wheel, a steering wheel turn sensor for sensing the desired turn angle, a hydraulic steering actuator for turning the wheel, a wheel turn sensor for sensing the c... | 03/30/2010 |
| 7617905 | Hydraulic steering device A hydraulic steering device (1) of a mobile machine, in particular of an industrial truck, includes a steering angle transmitter (2) in mechanically functional communication with a steering valve (4). As a function of the actuation of the steeri... | 11/17/2009 |
| 7510044 | Power steering apparatus A power steering apparatus (10) includes a first pump (24) which is continuously driven to supply fluid under pressure to a power steering motor assembly (18). A second pump (32) is driven by the engine (30) of the vehicle when a p... | 03/31/2009 |
| 7434652 | Hydraulic power steering apparatus An oil pressure regulating valve of rotary type comprising a valve body and a valve spool is constructed inside a housing having a cylindrical shape. An oil supply port for supplying pressure oil fed from an oil pressure generation source is formed at a position hav... | 10/14/2008 |
| 7364006 | Steering system with leads and pulls compensation A power assist steering system including a valve housing and a proportional control valve supported within the valve housing, further includes a pressure transducer arranged with respect to the proportional control valve for determining an amount of actuation of the... | 04/29/2008 |
| 7357215 | Steering apparatus for electric industrial vehicle A controller controls right and left wheel drive motors based on a tire angle detected by a tire angle sensor such that the angular velocities of a pair of drive wheels about the center of a turn of the vehicle are equal to each other. The controller determines a st... | 04/15/2008 |
| 7347433 | Wheel and steering sensor system A steerable element angular sensor system may include a sensor having a sensing axis positioned along an axis of rotation of a knuckle, a connector connecting a yoke and a knuckle of a steering system. The sensor may detect rotation of at least one of the knuckle an... | 03/25/2008 |
| 7331419 | Dual-circuit steer-by-wire steering system comprising a common cradle The invention relates to a steer-by-wire steering system comprising a hydraulic control unit that acts on the steerable wheels (1, 20), the control unit having at least one cradle (4, 23), which is displaceably mounted on at least one guide rod (5, ... | 02/19/2008 |
| 7325645 | Power steering device A first fluid passage extends from a first outlet/inlet port of a hydraulic pump to a first work chamber of a power cylinder, and a second fluid passage extends from a second outlet/inlet port of the pump to a second work chamber of the power cylinder. A switch syst... | 02/05/2008 |
| 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 |
| 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 |
| 7306070 | Variable gear ratio hydraulic power steering device A variable gear ratio hydraulic power steering device 1 is provided with a variable ratio transmission mechanism 7 for varying the rotation transmission ratio between the rotational angle of a steering handle 31 and the rotational angle of a pin... | 12/11/2007 |
| 7308346 | Steering device A steering device with a constitution in which an operation unit and steerable wheels are not mechanically connected, has a target turning angle setting device which sets a target turning angle of the steerable wheels according to an operation amount of the operatio... | 12/11/2007 |
| 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 |
| 7267016 | Sensitized ring for use with a sensor A sensitizing ring for sensors having a reduced manufacturing cost and an improved profile shape manufacture with a diameter of 120 mm or less. The sensitizing ring of the present invention is used to measure the rate of rotation and position of a rotating element. ... | 09/11/2007 |
| 7249650 | Vehicle steering device A vehicle steering device includes a steering shaft; a rotation operating member of the steering shaft; an operation-side motor that supplies an operating reaction force to the rotation operating member; a steering member; a steering-side motor that supplies an oper... | 07/31/2007 |
| 7232007 | Method for operating a power-assisted hydraulic steering system in a motor vehicle A method of operating a power-assisted hydraulic steering system of a motor vehicle having a hydraulic pump mechanically driven by a vehicle drive assembly, and having an additional function which reduces the amount of power assistance at a high driving speed in com... | 06/19/2007 |
| 7232006 | Clutch for steer-by-wire steering system A steer-by-wire steering system has a steering wheel actuator and a braking device that acts on the steering column. The braking device is activated when the vehicle steering wheel is to be blocked or at least sharply braked, such as when the steering stop is reache... | 06/19/2007 |
| 7233853 | Multiple mode operational system for work vehicle braking A work vehicle includes a multiple mode operational system having a work system such as a linkage and associated hydraulic cylinders of a backhoe, a braking system and a multiple mode control system. The multiple mode control system includes a central controller, a ... | 06/19/2007 |
| 7220209 | Multimodal vehicle traction system This invention relates to multiple driven axle vehicles, and particularly to all-terrain vehicles equipped for rear wheel drive, four wheel drive, and on-demand front wheel drive. The invention is directed toward a system of switchable traction options allowing the ... | 05/22/2007 |
| 7216733 | Small-sized vehicle A small-sized vehicle is capable of inhibiting the temperature of a battery that supplies an electric motor of a power steering apparatus with a power source from increasing. A battery which supplies the electric motor of the power steering apparatus with the power ... | 05/15/2007 |
| 7213676 | Power steering system In a power steering system employing a power cylinder for steering assistance, hydraulic pressure is supplied through a pair of fluid lines to respective hydraulic chambers of the power cylinder. Check valves are provided to charge a hydraulic pressure in a communic... | 05/08/2007 |
| 7210553 | Steering apparatus An apparatus (10) for use in turning steerable vehicle wheels (12,14) includes a connector member (28) which connects a first end portion (70) of the rack (66) with a first steerable vehicle wheel (14). A second end portion ... | 05/01/2007 |
| 7210554 | Power steering system A power steering system includes a hydraulic power cylinder, a hydraulic pump for supplying an oil pressure to the hydraulic power cylinder, an electric motor for driving the hydraulic pump, a first detector for detecting a steering assist force to be applied to a s... | 05/01/2007 |
| 7207411 | Steer unit for steer-by-wire Steer unit for steer-by-wire comprising angle sensing means (12) for detecting the angular position of a steering wheel (11), processing means (10) connected to the angle sensing means (12) and connectable to a wheel position sensor (2... | 04/24/2007 |
| 7191864 | Steering device A steering device in which a steering wheel which a driver operates and wheels which are steered are not mechanically connected has a target turning angle determination device which determines a target turning angle of the wheels according to an operation amount of ... | 03/20/2007 |
| 7188011 | Automatic braking-enhanced steering system A system for enabling a vehicle with a conventional steering system to make tighter right and left turns. The vehicle has one or more computers that monitor the steering angle and that are also capable of independently controlling a right braking unit and a left bra... | 03/06/2007 |
| 7185730 | Hydraulic steering arrangement The invention concerns a hydraulic steering arrangement (1) with a supply connection arrangement having at least a high-pressure connection (P) and a low-pressure connection (T), a working connection arrangement having at least two working connections (L, R),... | 03/06/2007 |
| 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 |
| 7174987 | End of travel feature for steer by wire vehicle The present invention provides a system for generating an end of travel feedback to the driver of a vehicle where the vehicle includes a steer by wire system. The system includes a steering wheel, a steering shaft, a motor, and a clutch. The steering wheel is config... | 02/13/2007 |
| 7163079 | Adjustable steering lock A steering system (10) for a vehicle includes at least one wheel (14) that pivots to define a steering angle (20), and a steering lock (12) that limits an input to the steering angle (20) from an operator to a selected maximum valu... | 01/16/2007 |
| 7143862 | Power steering device for a vehicle In a power steering device comprising a power steering pump, and to a method for operating a power steering device for a vehicle comprising a hydraulic circuit provided with a rotary slide valve, a steering cylinder and a control valve for adjusting the volume flow ... | 12/05/2006 |
| 7143864 | Yaw control for an automotive vehicle using steering actuators A stability control system (24) for an automotive vehicle includes a plurality of sensors sensing the dynamic conditions of the vehicle. The sensors include a steering angle sensor (35) and a yaw rate sensor (28). The controller (26) is c... | 12/05/2006 |
| 7140465 | Coupling for a steer-by-wire steering system A steer-by-wire steering system is proposed, having a steering wheel actuator and a braking device that acts on the steering column (3). The braking device is activated when the vehicle steering wheel is to be blocked or at least sharply braked, such as when ... | 11/28/2006 |
