| 摘要 |
PURPOSE:To prevent hunting due to change-over operation by delaying change- over from a speed sensitive speed change characteristic to a basic speed change characteristic conducted by speed change characteristic changing means using delay means when a specified operating condition is not detected. CONSTITUTION:When a handle steering angle 13 becomes larger than a designated value Q0, a control unit 10 selects a speed-sensitive speed change characteristic according to economy and power modes of mode selection 15. On the other hand, when it is smaller than a designated value Q1 (<Q0) or when turning at an intersection is discriminated according to the operation of a winker 16 even if the steering angle 13 is large, a basic speed change characteristic is selected. In this case, in change-over operation between the basic speed change characteristic and the speed sensitive speed change characteristic, hysteresis is provided at the above designated values Q0, Q1 to prevent hunting. In addition, when it once transits to the speed sensitive speed change characteristic, return to the basic speed change characteristic is delayed for a designated time, for example, for several tens of seconds. Thus, needless speed change due to change- over hunting call be restrained. |
