| 摘要 |
PURPOSE: A power take-off safety device for a vehicle and a control method thereof are provided to output a stable power take-off control signal by deciding combination of a PTO(Power Take Off) apparatus and a transmission from an ETACS(Electric Time Alarm Control System) according to the traveling vehicle speed and the operating states of a clutch and a power take off switch by a driver without addition of a power take off interception relay. CONSTITUTION: A power take-off safety device for a vehicle comprises a detecting device(100), an ETACS(200), and a driving device(300). The detecting device detects status changes of power supply, a clutch switch, a power take off switch, vehicle speed and engine rpm(revolutions per minute) varied according to a working state of the vehicle and a driver's switch operation state. The ETACS receives signals of the power supply, the clutch switch, the power take off switch, and vehicle speed and engine rpm detected and applied from the detecting device. The ETACS outputs a control signal for driving a PTO apparatus if the power take off switch is turned on when the clutch switch is in an on-state, and outputs a control signal for stopping the driving of the PTS apparatus if the power take off switch is turned off or an engine is turned off when the vehicle speed is over predetermined reference vehicle speed or the clutch switch is in an on-state. The driving device has a solenoid valve(320). The solenoid valve controlling the supply and interception of negative pressure is turned on/off according to the control signals output from the ETACS, to drive and stop the PTO apparatus. |
