| 摘要 |
PURPOSE:To effectively restrain a human body from oscillating, by adjusting the support force of side supports in the vehicle seat assembly in accordance with a detected steering angle during a running of a vehicle, and by changing the degree of adjustment of the support force to the steering angle in accordance with the speed of the vehicle. CONSTITUTION:When an automobile increases its speed exceeding, for example, 30 km/h at which the augmentation of support force is required, a control device 40 counts up or down steering angle information signals from a steering angle sensor 10 and sets a steering angle theta (response starting angle) at which the adjustment control of the support force is initiated, in accordance with the output of a vehicle speed sensor 9. When a steering wheel 11 is rotated clockwise on, for example, a right curve, so that the steering angle exceeds the response starting angle, a compensating data are issued in accordance with the deviation. Then an air feed solenoid valve 5 is opened in accordance with these compensating data, and air is fed into air mats 3a, 3b disposed in side supports 2a, 2b, thereby it is possible to enhance the support force.
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