| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an inexpensive device capable of continuing the uncoupling of a clutch even if a solenoid valve for controlling the working air pressure of an actuator is failed when the clutch between an engine and a transmission is uncoupled by the actuator. SOLUTION: A clutch 3 arranged between an engine 1 of a vehicle and a transmission 2 is coupled/uncoupled by an actuator 5, a normally closed solenoid valve 8 is provided on an air passage 7 to feed the working air pressure to the actuator 5, a normally opened solenoid valve 9 to the atmosphere is connected to an exhaust port of the solenoid valve 8, the transmission 2 is automatically stop-controlled by an electronic control device 16, the clutch 3 is uncoupled by the actuator 5, and the solenoid valve 9 is excited to be closed by the electronic control device 16 when the engine 1 is transferred to the stopping condition by turning off an ignition key while the engine 1 is under inertia operation.</p> |
