ELECTRIC POWER STEERING DEVICE

摘要

PROBLEM TO BE SOLVED: To make a driver perceive the beginning of losing tire grip and to suppress additional steering by the driver when a tire grip limit is being reached. SOLUTION: A friction compensation section 36 calculates a friction compensation value If based on an angular velocity of an electric motor 12; a grip loss level detection means 23 detects a grip loss level representing the degree of lost tire grip; and a compensation value correction means 24 corrects the friction compensation value If based on the detected grip loss level "g". COPYRIGHT: (C)2009,JPO&INPIT