| 摘要 |
PURPOSE:To prevent the burning of the disk of a clutch and the overheat of oil and prevent a bad effect on a transmission by providing such a constitution as not driving a clutch when a large load is added to the clutch. CONSTITUTION:A controller 11 for judging whether a large load is not added to a clutch 1a-1c in the vehicle speed when a running based on the differential motion between a vehicle speed sensor 16 for detecting the vehicle speed of a vehicle and the clutch 1a-1c switched and selected by a manual operation lever 14, and first and third speed relay vertical 12, 13 which cancells first and third solenoid valves 7a, 8a when the large load is added to the clutch 1a-1c switched and selected on the basis of the controller 11 are provided. |
