OVERHEAT PREVENTIVE DEVICE OF ACTUATOR IN BELT TYPE CLUTCH MECHANISM

摘要

PROBLEM TO BE SOLVED: To prevent overheat of an actuator by preventing output of a clutch engaging signal to the actuator when the ratio of accumulative operation time or a frequency to prescribed time in the prescribed time of the actuator exceeds a specific value. SOLUTION: An operation part 62 is arranged to arithmetically operate accumulative operation time or an accumulative operation frequency in prescribed time of a clutch motor 32 in a control part 58 enclosing a CPU on the basis of an engaging/disengaging signal of a clutch. A discharge clutch switch 23 is connected to the input side of this control part 58, and the clutch motor 32 controlled in driving via the control part 58 on the basis of a signal is connected. A calculation value at which rate the clutch motor 32 is actuated in the preset prescribed time is calculated. When a motor actuating rate exceeds a specific value, the clutch engaging/disengaging signal is not outputted to the clutch motor 32 from the control part 58 to thereby prevent overheat of an actuator.