| 摘要 |
<p>PURPOSE:To reduce a burden of a synchromesh so as to make prompt speed change action possible by changing an engine speed, at the time of a speed change while it is changed, to precede a rotational speed of a clutch, to the engine speed corresponding to a rotational speed of the next gear. CONSTITUTION:In the case of controlling a rotational speed of an engine 38, its speed is controlled by the actuator 44 of a fuel injection pump 40 so that the engine speed is changed always to precede a change of a rotational speed of a clutch 37. Drag torque is generated in the hydraulic clutch 37 by this control, and its clutch disk is changed to follow up the speed of the engine 38. This drag torque acts so as to reduce a burden of a synchromesh of a transmission 39. Accordingly, prompt speed change action can be attained to prevent a speed change time from being taken long by ensuring durability of the synchromesh and positively changing a rotational speed of the engine 38.</p> |
