Electric power steering device, and control method thereof

Details Electric power steering device, and control method thereof Electric power steering device, and control method thereof

2011-06-21

2011-06-21

Beaulieu, Yonel (Department: 3661)

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

Vehicle subsystem or accessory control

C180S443000

Reexamination Certificate

active

07966114

ABSTRACT:
A first compensation torque T1, a second compensation torque T2and a third compensation torque T3are added to a basic assist torque Tas. In this case, the second compensation torque T2and the third compensation torque T3are corrected by multiplying them by a common control gain G that is determined by the steering torque Th and the vehicle speed v. Therefore, since the two compensation control amounts are corrected through multiplication by the common control gain G, no interference occurs between the compensation controls. Besides, when the direction in which the total (T2+T3) of the pre-correction second compensation torque T2and the pre-correction third compensation torque T3acts is the same direction as the steering torque Th, the multiplication by the control gain G is avoided.

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