Electronic-controlled engine under-vehicle accelerator constant-rotation-speed switching switch control device

Abstract

An electronic-controlled engine under-vehicle accelerator constant-rotation-speed switching switch control device comprises an engine ECU, a vehicle body center computer, a power takeoff electromagnetic valve, a power takeoff position switch, a multi-mode switch and a power takeoff switch, wherein the power takeoff electromagnetic valve is connected with a power takeoff cylinder through a gas path and is electrically connected with the vehicle body center computer, the power takeoff position switch is arranged on the top of the power takeoff cylinder, and the power takeoff switch is electrically connected with the vehicle body center computer. The multi-mode switch is electrically connected with a vehicle 24V power supply, a vehicle small lamp power supply, a vehicle earth wire and the engine ECU, one end of the power takeoff position switch is electrically connected with the vehicle 24V power supply, the other end of the power takeoff position switch is electrically connected with the coil end of a relay and the engine ECU, one end of a contact switch of the relay is connected with the vehicle body center computer, and the other end of the contact switch is grounded. The power takeoff position switch serves as a switching switch of a conventional accelerator and an under-vehicle accelerator, operation habits are simplified, the situation that the switching switch is mistakenly operated by people can be avoided, and safety hidden hazards are avoided. An engine can be switched between various fixed rotation speeds by adjusting the gear of the multi-mode switch.

Description

technical field [0001] The invention relates to a control device for switching a switch of a fixed speed of an accelerator under an electric control engine vehicle. Background technique [0002] For electronically controlled engine vehicles, the throttle control includes not only conventional throttle control, but also off-vehicle throttle control. The conventional throttle and the off-vehicle throttle are converted by a switch. When the working conditions are met, the throttle can be used to adjust the speed of the engine under the vehicle. Generally, the top-mounted vehicle with a power take-off is controlled by the accelerator when the power take-off is in place. [0003] The throttle control signal under the engine ECU is a voltage signal. The traditional throttle control terminal under the vehicle is a knob type or cable type potentiometer. This operation method is to make the potentiometer output different voltage values ​​to the engine ECU by rotating or pulling...

AI Technical Summary

Problems solved by technology

Otherwise, the upper load will not work normally, and there will be a serious safety hazard

The traditional throttle potentiometer control under the car makes the engine speed change continuously, and it takes a long time to operate, and the accuracy of the engine speed is not easy to control, so it cannot meet the above requirements

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