| 摘要 |
PURPOSE:To prevent changeover of a supercharger to its inoperative condition at the time of acceleration run with constant throttle opening by setting a variable width to the high throttle opening side in a supercharger smaller than a specified width of hysteresis in a specified speed change step range of an automatic transmission. CONSTITUTION:An engine 1 and a supercharger 4 interposed in the intake pipe passage of the engine are controlled by respective exclusively used electronic controllers 6. On the other hand, the oil pressure controller 10 of an automatic transmission 2 connected the engine 1 is controlled by another exclusively used electronic controller 9. Hysteresis is set in a supercharger 4 so that a changeover range to an operational condition is shifted to the higher throttle opening side than the changeover range to inoperative condition. In this case, a variable width to the high throttle opening side in response to increase in rotational speed of the engine 1 in the changeover range to the inoperative condition is set smaller than the width of the hysteresis in the specified speed change step range in the automatic transmission 2. |
