DC motor drive unit and motor-driven power steering control apparatus

Abstract

A power assist motor drive unit includes an H-bridge circuit, current detecting means, and current control means for carrying out a PI feed back control according to a difference between the absolute values of a command current value and a actual motor current, thereby controlling the H-bridge circuit. The current control means includes PI operation control means and compensation-term-operation means for resetting a integral compensation term to a suitable value when operation of the power assist motor is changed from one state to another.

Claims aren’t available for this document.