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