Solenoid valve with power reduction function and circuit controlling method

Abstract

The invention discloses a solenoid valve with a power reduction function. A power reduction module is arranged at the front end of a solenoid valve coil; a main power source voltage detection system and a voltage conversion system are arranged inside the module; the main power source voltage detection system and the voltage conversion system are respectively connected with a single-chip microcomputer control system; the single-chip microcomputer control system outputs voltage through duty cycle of a power pipe; the single-chip microcomputer control system outputs pulse voltage with the pulse voltage frequency being 20KHZ and the cycle period being 50uS. A circuit controlling method disclosed by the invention comprises the following steps: providing direct current voltage for the power reduction module; inputting one path of voltage into the single-chip microcomputer control system through the main power source voltage detection system and inputting another path of voltage into the single-chip microcomputer control system after the voltage is reduced by the voltage conversion system; the single-chip microcomputer control system outputs the duty cycle of the voltage to the solenoid valve coil through the power pipe, and triggering the solenoid valve to act. According to the solenoid valve disclosed by the invention, the power is supplied intermittently to the solenoid valve coil, so that the heat power of electromagnetic coils is reduced, and the safe and reliable operation of the solenoid valve is guaranteed.

Description

technical field [0001] The invention relates to related technologies in the automobile industry, in particular to a power-reducing solenoid valve and a circuit control method. Background technique [0002] With the continuous development of electronic control technology, the user's requirements for the convenience of vehicle operation and the rationality of the layout of the vehicle, many functions need to be realized by controlling the on-off of the air circuit through the solenoid valve. Reliability is paramount. [0003] All special-purpose vehicles need to take power from the electronically controlled air valve on the chassis for a long time. After-sales feedback: After long-term use of conventional solenoid valves, overheating and air leakage failures have occurred, resulting in a series of serious quality problems. This problem has affected the reliability and safety of the gas circuit of the whole vehicle, and it is urgent to develop a safe and reliable new solenoid...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the phenomenon of high temperature and air leakage failure of the solenoid valve after long-term use, the present invention proposes a solenoid valve with reduced power and a circuit control method

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