| 摘要 |
PROBLEM TO BE SOLVED: To provide an electric power steering device for adjusting an assist force so as to well follow a car speed just since running start and prevent a driver from feeling uncomfortableness. SOLUTION: When first and second pulses are inputted from a car speed sensor just after the running start, the lowest car speed in a map is set as a car speed for control (step S60). In calculating the car speed for control by averaging last four instant car speeds, while four inter-pulse times are not detected just after the running start, the lowest car speed (2 km/h) in the map is used and the car speed for control is calculated by averaging (steps S90, S120, and S150). Thus, the car speed for control following an actual car speed well is provided. COPYRIGHT: (C)2004,JPO |
