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Class Information
Number: 180/412
Name: Motor vehicles > Steering gear > Each wheel steerable > With electric power assist
Description: Subject matter including means movable by an electric motor to provide power to assist the steering of a wheel of the vehicle.










Sub-classes under this class:

Class Number Class Name Patents
180/413 With electric power assist to all wheels 55


Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
5346030 Rear-wheel steering apparatus for vehicles Sep. 13, 1994
5311956 Electric control apparatus for rear wheel steering mechanism of wheeled vehicle May. 17, 1994
5295550 Four-wheel steering apparatus Mar. 22, 1994
5289891 Rear-wheel steering apparatus for wheeled vehicle Mar. 1, 1994
5274555 Controlling apparatus of steering angle of rear wheels of four-wheel steering vehicle Dec. 28, 1993
5267160 Steering control system for vehicle Nov. 30, 1993
5261500 Four-wheel steering locking mechanism for a motor vehicle Nov. 16, 1993
5261501 Four-wheel steering system with steering motor short circuit control Nov. 16, 1993
5257191 Steering device for rear vehicle wheels Oct. 26, 1993
5227974 Rear wheel turning system for four-wheel steered vehicle Jul. 13, 1993
5226499 Front and rear wheel turning system for vehicle Jul. 13, 1993
5225983 Rear wheel steering system for motor vehicle Jul. 6, 1993
5219035 Front and rear wheel steering system for motor vehicles Jun. 15, 1993
5212641 Rear wheel steering control system for vehicle May. 18, 1993
5207287 Four-wheel steering apparatus May. 4, 1993
5202830 Motor drive control circuit Apr. 13, 1993
5195601 Independent rear wheel toe-in control in a vehicle four wheel steering system Mar. 23, 1993
5145022 System and method for pivotally controlling vehicle rear wheels Sep. 8, 1992
5123496 Rear-wheel steering angle detecting apparatus for a vehicle Jun. 23, 1992
5116254 Steering system for vehicles May. 26, 1992
5101922 Rear wheel steering system with fail-safe system Apr. 7, 1992
5096014 Rear wheel steering mechanism with locking control for four-wheel-steerable vehicle Mar. 17, 1992
5096011 Steering gear and system for automotive vehicle Mar. 17, 1992
5083627 Steering system for motor vehicle with steerable front and rear wheels Jan. 28, 1992
5083626 Rear wheel steering device for vehicle with four steerable wheels Jan. 28, 1992
5082080 Front and rear wheel turning system for vehicle Jan. 21, 1992
5067577 Motor-driven type front and rear wheel steering apparatus Nov. 26, 1991
5048633 Integrated control system for steering and power unit Sep. 17, 1991
5048629 Rear wheel steering method for a four wheel steering vehicle Sep. 17, 1991
5033566 Device for steering the rear wheels of a vehicle with four wheel steering Jul. 23, 1991
5026081 Rear wheel steering system having toe error compensation Jun. 25, 1991
5020619 Rear wheel steering device for a vehicle Jun. 4, 1991
5018594 Rear-wheel steering system for four-wheel steering vehicle May. 28, 1991
5014801 Method and device for rear-wheel steering of automotive vehicle May. 14, 1991
5010971 Steering system for vehicles Apr. 30, 1991
5010488 Bear-wheel control method for a motor vehicle with a four-wheel steering system Apr. 23, 1991
4987788 Electric motor-driven positioning element Jan. 29, 1991
4987963 Steering gear for the roadwheels of a vehicle Jan. 29, 1991
4976328 Rear wheel turning system Dec. 11, 1990
4971175 Steering system for vehicles Nov. 20, 1990
4971173 Rear-wheel steering system of a motor vehicle Nov. 20, 1990
4970647 Rear wheel steering angle control method Nov. 13, 1990
4964481 Steering system for vehicles Oct. 23, 1990
4953650 Rear wheel steering control system Sep. 4, 1990
4953649 Four-wheel steering device for an automobile Sep. 4, 1990
4943758 Steering control apparatus for a motor vehicle with steerable front and rear wheels Jul. 24, 1990
4939653 Method of and apparatus for controlling steering operation of a motor vehicle with steerable front and rear wheels Jul. 3, 1990
4936401 Steering system for a vehicle Jun. 26, 1990
4926954 Front and rear wheel steering vehicle with a minimized maneuvering area May. 22, 1990
4880073 Four-wheel steering system of a motor vehicle Nov. 14, 1989

1 2 3 4










 
 
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