Electric power steering apparatus

Details Electric power steering apparatus Electric power steering apparatus

1998-01-22

1999-12-07

Cuchlinski, Jr., William A.

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

Vehicle subsystem or accessory control

701 42, 180422, 180446, G06F 700

Patent

active

059998695

ABSTRACT:
An electric power steering apparatus wherein a motor driving prohibiting means prohibits driving of a motor when a driving logic determining unit determines that a detected torque is outside a specified range, a direction in which the motor is to be driven on the basis of a motor current target value and the direction of the steering torque are opposite with respect to each other, and the direction in which the motor is to be driven on the basis of the motor current target value and the change direction detected by the torque change direction detecting unit are opposite with respect to each other, and when an abnormal current determining unit detects that a driving current is greater than a specified value.

REFERENCES:
patent: 5720361 (1998-02-01), Nishimoto et al.
patent: 5752209 (1998-05-01), Nishimoto et al.
patent: 5835872 (1998-11-01), Matsuoka et al.
patent: 5878360 (1999-03-01), Nishino et al.

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