| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a drive control device for a vehicle for reducing shock when a unidirectional power transmitting unit or brake engages during driving of an electric motor. <P>SOLUTION: The drive control device for the vehicle includes a drive source capable of output of drive power to a first axle which is one of the front and rear axles; an electric motor capable of output of drive power to a second axle which is the other axle; a unidirectional power transmitting unit for transmitting the vehicle drive power from the electric motor to the second axle; and a brake for transmitting bi-directional power between the electric motor and the second axle when the electric motor performs regenerative drive. The drive control device for the vehicle also includes a vehicle speed detection means, a means for determining a target rotational speed of the electric motor on the basis of the speed of the vehicle; a means for detecting the rotational speed of the electric motor; and a control unit which, when starting the drive of the electric motor while the vehicle is traveling by the drive source, controls the electric motor so that the rotational speed of the electric motor is synchronized with the target rotational speed and also controls the output torque of the electric motor. The control unit controls the electric motor so that a predetermined torque is output when the rotational speed of the electric motor reaches a threshold rotational speed lower than the target rotational speed. <P>COPYRIGHT: (C)2011,JPO&INPIT |
