| Patents for B62D 5 - Power-assisted or power-driven steering (23,389) |
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| 09/27/1990 | DE3909210A1 Elektrohydraulische lenkhilfe fuer kraftfahrzeuge Electro-hydraulic steering assistance for motor vehicles |
| 09/26/1990 | EP0388711A1 Open-center steering control unit with flow amplification |
| 09/26/1990 | EP0388440A1 Hydraulic power-assisted steering. |
| 09/25/1990 | US4959787 Electric power steering device having a clutch |
| 09/25/1990 | US4958695 Variable assist power steering system |
| 09/25/1990 | US4958493 Open-center steering control unit with flow amplification |
| 09/18/1990 | WO1990011452A1 Improved four-way valve |
| 09/18/1990 | US4957468 Hydraulic reaction force apparatus of power steering device |
| 09/18/1990 | US4957182 Electric power steering apparatus |
| 09/18/1990 | US4957181 Electric power steering system |
| 09/18/1990 | CA2046924A1 Four-way valve |
| 09/13/1990 | DE3907780A1 Brake device for a piston rod |
| 09/11/1990 | US4956590 Vehicular power steering system |
| 09/11/1990 | US4955445 Hydrostatic auxiliary power steering mechanism for motor vehicles |
| 09/11/1990 | US4955444 Hydrostatic steering device |
| 09/04/1990 | US4953653 Fluid power assist rack and pinion steering gear with end-take-off |
| 09/04/1990 | US4953651 Coupling arrangement in power steering for vehicles |
| 09/04/1990 | US4953648 Rear wheel steering apparatus |
| 09/04/1990 | US4953445 Control device with failure detection centering for a double-acting hydraulic jack |
| 09/04/1990 | US4953416 Power steering valve with two spools of different size to compensate unbalanced cylinder |
| 08/29/1990 | EP0384384A2 Method and device for determining the steering angle of a vehicle steering rod |
| 08/21/1990 | US4951207 Method for controlling the front wheel steer angle |
| 08/21/1990 | US4951199 Steering stabilizing method and apparatus for suppressing the weave mode |
| 08/16/1990 | DE4003103A1 Electric servo steering controller - uses torque sensor to control and set direction of servo motor |
| 08/14/1990 | US4947951 Pressure responsive and electrically controllable flow control apparatus |
| 08/14/1990 | US4947949 Motor-driven type power assisted steering control apparatus |
| 08/14/1990 | US4947894 Flow amplifier in hydraulic steering system of a transport vehicle |
| 08/14/1990 | CA1272688A1 Apparatus for establishing steering feel |
| 08/09/1990 | WO1990008686A1 Hydraulic steering mechanism of a vehicle |
| 08/09/1990 | WO1990008454A2 A method with 3 medium quantities, 2 in the same direction, control piston cylinder applications |
| 08/07/1990 | US4946001 Apparatus and method of controlling electric power steering apparatus |
| 08/01/1990 | EP0380246A1 Electric motor powered power steering arrangement with feature of decoupling motor from steering shaft |
| 07/31/1990 | US4945298 Motor driving apparatus |
| 07/31/1990 | US4944356 Steering system position detector |
| 07/26/1990 | WO1990008266A1 Device for securing a valve unit in position |
| 07/26/1990 | DE4001387A1 Automobile four=wheel steering control - adjusts tracking angle variation amplitude of auxiliary wheels dependent on steering angle and vehicle velocity |
| 07/26/1990 | DE4000041A1 Fixing system for valve unit - has stop with disc segment sliding into housing |
| 07/26/1990 | DE3911531A1 Hydraulic system for motor vehicles |
| 07/25/1990 | EP0379124A2 Torque-generating steering device with load-sensing capability |
| 07/24/1990 | US4942935 Auxiliary power steering system |
| 07/24/1990 | US4942803 Steering gear with pressure-balanced valve |
| 07/18/1990 | EP0378311A2 Control valve |
| 07/10/1990 | US4940107 Method and apparatus for controlling a power assist steering system |
| 07/10/1990 | US4940106 Articulated vehicle with hydraulic steering |
| 07/10/1990 | US4940105 Steering gear for a vehicle |
| 07/10/1990 | US4940104 Power-assisted steering apparatus |
| 07/10/1990 | US4940102 Motor-driven power steering system |
| 07/04/1990 | EP0376557A2 Steering system for the rear wheels of a vehicle |
| 07/04/1990 | EP0376458A2 Steering gear and system for automotive vehicle |
| 07/04/1990 | EP0376457A2 Steering gear for the roadwheels of a vehicle |
| 07/04/1990 | EP0376456A2 Steering system position detector |
| 07/03/1990 | US4939436 Motor driven type power steering control device |
| 06/28/1990 | WO1990006880A1 Assisted steering system for a vehicle |
| 06/28/1990 | WO1990003908A3 Hydraulic servo-assisted steering system for motor vehicles |
| 06/27/1990 | EP0314698B1 Servo-assisted steering system, specially for motor vehicles |
| 06/26/1990 | US4936402 Hydrostatic steering device including a gerotor set |
| 06/26/1990 | US4936094 Torque-generating steering device with load-sensing capability |
| 06/21/1990 | DE3842334A1 Verfahren zur unterstuetzung der bei einem fahrzeug aufzubringenden lenkkraefte Process for the assistance applied for a vehicle lenkkraefte |
| 06/20/1990 | EP0326562B1 Rotary gate valve for hydraulic servo-assisted steering systems |
| 06/20/1990 | EP0323972B1 Rotary gate valve for hydraulic servo-assisted steering systems |
| 06/19/1990 | US4934473 Motor driven power steering apparatus |
| 06/19/1990 | US4934472 Power assisted steering system for a motor vehicle and control means therefor |
| 06/12/1990 | US4932492 Steering mechanism with variable gear reduction controlled by the speed of the vehicle |
| 06/06/1990 | EP0371852A1 Steering device for the rear wheels of a vehicle with four-wheel steering |
| 06/06/1990 | EP0371851A1 Auxiliary device for treating faults in a lineary jack electrical actuating system |
| 05/23/1990 | EP0369311A2 Hydraulic power steering apparatus |
| 05/22/1990 | US4926960 Electric power steering apparatus for vehicle |
| 05/16/1990 | EP0368159A2 Rack and pinion steering gear with intermediate take-off |
| 05/15/1990 | US4924960 Highly reliable remote control system |
| 05/15/1990 | US4924910 Hydraulic pressure control valve |
| 05/15/1990 | US4924696 Noncontacting position sensor for an automotive steering system |
| 05/15/1990 | CA1269047A1 Electric power assistance steering system |
| 05/15/1990 | CA1269046A1 Electric motor driven rack and pinion steering gear with take-off from axially slidable nut |
| 05/10/1990 | DE3837864A1 Non-track-bound motor vehicle |
| 05/09/1990 | EP0367442A2 Torque sensing device |
| 05/09/1990 | EP0367038A1 Hydraulic steering system and automotive works-vehicle provided with such a steering system |
| 05/09/1990 | EP0366691A1 Rack and pinion servo-assisted steering system, in particular for motor vehicles. |
| 05/08/1990 | US4923170 Hydraulic pressure control valve |
| 05/08/1990 | US4922803 Four-way valve |
| 05/08/1990 | US4922761 Steering torque detector |
| 05/03/1990 | WO1990004533A1 Hydraulic servo-assisted steering system |
| 05/03/1990 | DE3935933A1 Priority valve for servo steering gear - connects emergency source to priority outlet in emergency setting |
| 05/03/1990 | DE3934394A1 Hydraulically-assisted steering gear - has additional valve faces for servo motor connected to servo valves |
| 05/01/1990 | US4921061 Electric power steering apparatus |
| 04/26/1990 | DE3934395A1 Hydraulic steering servo - has primary part of steering column with forked drives gripping servo pistons and further linked by torsion rod |
| 04/19/1990 | WO1990003910A1 Device for steering the rear wheels of vehicles with steerable front and rear wheels |
| 04/19/1990 | WO1990003909A1 A hydraulic steering system |
| 04/19/1990 | WO1990003908A2 Hydraulic servo-assisted steering system for motor vehicles |
| 04/18/1990 | EP0363357A1 Torque sensor, in particular for electric steering mechanisms. |
| 04/17/1990 | US4918744 Motor-driven power steering unit |
| 04/17/1990 | US4917205 Four-wheel steering system |
| 04/17/1990 | US4917139 Flow control apparatus for a power steering device |
| 04/17/1990 | CA1267958A1 Control apparatus for hydrostatic motor vehicle steering apparatus |
| 04/12/1990 | DE3933295A1 Einrichtung zur bestimmung von regelcharakteristiken fuer kraftfahrzeuge Means for determination of control characteristics for motor vehicles |
| 04/11/1990 | EP0362597A2 Fluid controller with reduced steering wheel precession |
| 04/11/1990 | EP0362592A2 Hydraulic power steering for motor vehicles |
| 04/11/1990 | EP0362534A2 Steering control unit with both flow amplification and manual steering capability |
| 04/10/1990 | US4915186 Self-propelled work vehicle |
| 04/10/1990 | US4914913 Load responsive flow amplified control system for power steering |
| 04/05/1990 | WO1990003295A1 Rotary gate valve, in particular for servo-assisted steering systems in motor vehicles |