Stabilizer control device for vehicle

DRIVE November 30, 2005
Source
The present invention provides a stabilizer apparatus for a vehicle which can improve the responsiveness of output torque of a motor-driven actuator to current flowing through an electric motor during periods in which the current decreases. An electronic control unit 25 calculates a target current of an electric motor 15 from vehicle speed detected by means of the vehicle speed sensor 21, steering angle detected by means of the steering angle sensor 22, and lateral acceleration of the vehicle detected by means of the lateral acceleration sensor 23, and increases and decreases actual current such that the calculated target current flows through the electric motor 15. The electronic control unit 25 decreases the actual current by a predetermined amount when the difference between the target current and the actual current becomes smaller than a predetermined value during control of increasing the actual current. The predetermined amount is equal to the difference between the determined target current at the time of the detection of the difference and current which is necessary to obtain, during control of decreasing the actual current, an output torque equal to the output torque of the speed reduction mechanism 16 obtained as a result of the target current flowing through the electric motor 15.

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