| 摘要 |
PROBLEM TO BE SOLVED: To reduce a longitudinal vibration of a vehicle body generated when wheels of an electric vehicle pass a road surface level difference. SOLUTION: A driving force controller at the level difference passing time by a motor vehicle detects the change of a wheel speed of wheels at a stage in which the wheel starts contact with a road surface level difference, by utilizing excellent response of a motor estimated as 100 Hz or more when the wheels ride beyond the road surface level difference, and corrects to increase or decrease the drive force of the wheels so as to suppress the change of the wheel speed thereafter based on the detected data. Thus, the change of the wheel speed is suppressed to reduce the longitudinal vibration of the vehicle body. COPYRIGHT: (C)2005,JPO&NCIPI |
