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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
6540043 Vehicle steering system with electronic power regulation unit for limiting the steering angle of rear wheels at high speeds Apr. 1, 2003
6510396 Symmetry compensation for encoder pulse width variation Jan. 21, 2003
6510375 Method and arrangement for controlling a vehicle and/or for providing driver information when there is loss of tire pressure Jan. 21, 2003
6505700 Rear wheel steering device Jan. 14, 2003
6386311 Limited independent steering device May. 14, 2002
6275754 Automatic steering system for vehicle Aug. 14, 2001
6198988 Method for detecting an erroneous direction of travel signal Mar. 6, 2001
6161068 Electric power steering control system Dec. 12, 2000
6131691 System for guided steering of at least one set of wheels of a semi-trailer or a trailer Oct. 17, 2000
6122579 Electric power steering control with torque ripple and road disturbance damper Sep. 19, 2000
6052633 Power steering apparatus for electric vehicle Apr. 18, 2000
6039143 Steerable drive axle with electrically-powered steering apparatus Mar. 21, 2000
5982137 Controller for electric power steering system Nov. 9, 1999
5964814 Steering angle adjusting device for a motor vehicle Oct. 12, 1999
5960694 Hydrostatic power steering system having reduced wheel slip Oct. 5, 1999
5957987 Vehicle motion control apparatus Sep. 28, 1999
5954774 Method for controlling rear wheel steering angle of a vehicular 4-wheel steering system Sep. 21, 1999
5946644 Steering center indicator device Aug. 31, 1999
5907277 Device for detecting a counter-steer condition May. 25, 1999
5878360 Electric power steering control apparatus Mar. 2, 1999
5828973 Electric power steering apparatus Oct. 27, 1998
5813487 Omnibus Sep. 29, 1998
5799745 Device for stabilizing vehicle attitude in terminal portion of countersteering state by reducing vehicle yaw moment produced by yaw moment control mechanism Sep. 1, 1998
5799259 Vehicle with steerable front and rear wheels Aug. 25, 1998
5791432 Steering control apparatus for an automotive vehicle Aug. 11, 1998
5734570 Wheeled vehicle steering system for steering the rear wheels of a vehicle Mar. 31, 1998
5732372 Method for determining a center position of a vehicle steering system Mar. 24, 1998
5729107 Control device for an electric actuator of a steering system Mar. 17, 1998
5668721 Electric power steering motor control Sep. 16, 1997
5659473 Electric power steering system Aug. 19, 1997
5642281 Steering angle control apparatus Jun. 24, 1997
5600559 Electric power steering apparatus Feb. 4, 1997
5590732 Electrically assisted power steering system for motor vehicles Jan. 7, 1997
5576957 Control system for a front and rear wheel steering vehicle Nov. 19, 1996
5554969 Diagnosing apparatus and method for detecting failure in sensor applicable to motor-driven vehicular rear road wheel steering system Sep. 10, 1996
5524079 Rear wheel steering angle controlling apparatus of four-wheel steering vehicle Jun. 4, 1996
5521820 Method for controlling a steering system May. 28, 1996
5508921 Four wheel steering apparatus Apr. 16, 1996
5502639 Controlling apparatus of steering angle of rear wheels of four-wheel steering vehicle Mar. 26, 1996
5487439 Rear wheel steering device Jan. 30, 1996
5482133 Traction control for automotive vehicle Jan. 9, 1996
5467278 Electric control apparatus for four-wheel steering system Nov. 14, 1995
5465210 Method for determining a vehicle steering wheel center position Nov. 7, 1995
5417299 All-wheel steering systems May. 23, 1995
5402341 Method and apparatus for four wheel steering control utilizing tire characteristics Mar. 28, 1995
5400250 Rear wheel steering device Mar. 21, 1995
5392214 Control method and device for steering the rear wheel of a vehicle Feb. 21, 1995
5383529 Gear train arrangement of rear wheel steering system for motor vehicle Jan. 24, 1995
5381705 Rear wheel steering apparatus for four-wheel steering vehicle Jan. 17, 1995
5373444 Apparatus and method for processing vehicle steering angle signal Dec. 13, 1994

1 2 3 4










 
 
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