| 摘要 |
<p>PROBLEM TO BE SOLVED: To prevent a vehicle from starting with crawling traveling even if a foot is stepped off from an accelerator pedal and a brake by inputting an engine rotating speed signal from engine rotating speed detecting means, and outputting a command to a solenoid valve for cutting off an advance clutch or a reverse clutch when the engine rotating speed signal is not more than a prescribed value. SOLUTION: When engine rotating speed reaches a prescribed value or less even if an operator steps off his foot from an accelerator pedal and a brake pedal, in a condition in which an operating lever 11 is operated to an advance position or a reverse position, a command signal from a control means 9 is not outputted to each solenoid of a solenoid valve 8, and hydraulic pressure oil acting on each piston chamber of advance and reverse clutches 6 is drained to a tank. The advance and reverse clutches 6 are cut off by power of an engine 1, and the power is not transferred to right and left driving wheels 5L, 5R. Since a vehicle is not started with crawling travel, it is possible to prevent creep.</p> |
