| 摘要 |
There is provided an engine speed control system for a work vehicle which is designed to reduce engine noise and suppress fuel consumption during vehicle suspension, the control system being capable of reducing possible instantaneous impact load caused by gear shift clutch engagement when the work vehicle resumes operation after suspension. If it is determined the state of the vehicle is changed from a work-loaded condition to a non-loaded condition, the engine speed of the vehicle is decreased to a first specified engine speed and after the first specified engine speed is maintained for a first specified period of time, the engine speed is further decreased to a second specified engine speed. In addition, if it is determined the vehicle has restored its work-loaded condition while the first or second specified engine speed being maintained, the limitation of the engine speed to the first or second specified engine speed is cancelled after an elapse of a second specified period of time after the determination.
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