Electric power steering control system

Details Electric power steering control system Electric power steering control system

1999-06-28

2000-12-12

Cuchlinski, Jr., William A.

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

Vehicle subsystem or accessory control

180400, 180412, 180413, 180446, 318140, 318432, 318433, 318503, B62D 600

Patent

active

061610682

ABSTRACT:
An electric power steering control system reducing steering torque without making a driver feel uncomfortable torque oscillation, including a rotation speed observer for estimating the rotation speed of a motor based on the output of a torque sensor high pass filter (HPF) and the output of a drive current HPF obtained by removing a steering frequency component from a drive current detection value.

REFERENCES:
patent: 4789040 (1988-12-01), Morishita et al.
patent: 4939436 (1990-07-01), Morishita et al.
patent: 5076381 (1991-12-01), Daido et al.
patent: 5740040 (1998-04-01), Kifuku et al.
"Steering Technology Powered by an Electric Motor", Technical Journal of Mitsubishi Electric Co., Ltd., vol. 70, No. 9, pp. 43-48, 1996, no month.

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