초록 ▼

A vehicle attitude control device including a yaw moment control mechanism for giving a yaw moment to the vehicle and controlling the yaw moment, and a controller for controlling the yaw moment control mechanism in a normal target follow-up control mode so that the actual yaw rate detected by a yaw

A vehicle attitude control device including a yaw moment control mechanism for giving a yaw moment to the vehicle and controlling the yaw moment, and a controller for controlling the yaw moment control mechanism in a normal target follow-up control mode so that the actual yaw rate detected by a yaw rate sensor coincides with a target value determined on the basis of an angle of rotation of a steering wheel detected by a steering wheel angle sensor, and wherein a yaw moment reducing device is provided for reducing the yaw moment to be given to the vehicle by the yaw moment control mechanism, to a reduced value smaller than a normal value to which the yaw moment is controlled in the normal target follow-up control mode. The yaw moment reducing device is operated in at least a second phase of a countersteering period following a first phase which is initiated by vehicle operator's countersteering manipulation of the steering wheel upon slipping of rear wheels of the vehicle during vehicle turning outwardly of the turning direction so as to countersteer the vehicle.

대표청구항 ▼

[ What is claimed is:] [1.] A vehicle attitude control device comprising a steering wheel angle sensor for detecting a rotation angle of a steering wheel which is operated by an operator of the vehicle to steer front wheels of the vehicle, a yaw rate sensor for detecting an actual value of a yaw rat

[ What is claimed is:] [1.] A vehicle attitude control device comprising a steering wheel angle sensor for detecting a rotation angle of a steering wheel which is operated by an operator of the vehicle to steer front wheels of the vehicle, a yaw rate sensor for detecting an actual value of a yaw rate of the vehicle, a yaw moment control mechanism for giving a yaw moment to the vehicle and controlling said yaw moment, and a controller for controlling said yaw moment control mechanism in a normal target follow-up control mode so that the actual value of the yaw rate detected by said yaw rate sensor coincides with a target value of the yaw rate which is determined on the basis of the rotation angle of the steering wheel detected by said steering wheel angle sensor, wherein an improvement comprises yaw moment reducing means for reducing the yaw moment to be given to the vehicle by said yaw moment control mechanism, to a reduced value smaller than a normal value to which the yaw moment is controlled in said normal target follow-up control mode under the control of said controller, said yaw moment reducing means being operated in at least a second phase of a countersteering period following a first phase of said countersteering period, said countersteering period being initiated by countersteering manipulation of said steering wheel by said operator upon slipping of rear wheels of the vehicle during turning of the vehicle outwardly of a direction of said turning so as to countersteer the vehicle, said countersteering manipulation including a rotation of said steering wheel in said first phase so that said front wheels are oriented outwards with respect to said turning direction of the vehicle, and a rotation of said steering wheel toward a neutral position thereof in said second phase.