| 摘要 |
PURPOSE:To prevent occurrence of a completely slipping status, by making shift-up of the gear step of a transmission effective to reduce brake force when a difference between rotational speed of driving wheels and that of driven wheels exceeds a prescribed value. CONSTITUTION:The rotational speed of driving wheels B is detected by a driving wheel rotation sensor 8b, and the rotational speed of driven wheels C is detected by a driven wheel rotation sensor 15. Then, those detected signals are transmitted to an electronic controller 9 to find out the difference between them to check whether it reaches the prescribed value or not. This prescribed value can be determined on the basis of the result of a previous experiment to find out the extent of the difference to cause slippage. If the difference has reached the prescribed value as the result of checking, a signal is transmitted to a transmission actuator 5 to shift up the gear by one step. Therefore, completely slipping status can be prevented by reducing the brake force, thereby such an accident as jack knife phenomenon cause by slippage can be prevented beforehand.
|
