Controller for electric power steering device

Details Controller for electric power steering device Controller for electric power steering device

2004-05-14

2009-08-11

Nguyen, Tan Q (Department: 3661)

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

Vehicle subsystem or accessory control

C701S042000, C701S072000, C180S234000, C318S432000

Reexamination Certificate

active

07574294

ABSTRACT:
A control apparatus of an electric power steering apparatus is provided in which a nonlinear element of a motor model of-the electric power steering apparatus is compensated beforehand to linearize the motor model and the back electromotive force of the motor is computed to compensate the back electromotive force for a control loop, and conduct back electromotive force compensation with no lag in order to realize a control apparatus of an electric power steering apparatus with less control error, stable controllability, small motor output torque ripple, good wheel steering feeling, and less motor noise.

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