A pure electric truck air brake energy supply pipeline system and its control method

Abstract

This application discloses a pure electric truck air brake energy supply pipeline system and its control method, and relates to the technical field of air brake systems. The air brake energy supply pipeline system includes: an electric air compressor; an air dryer, which passes through The first air supply pipeline communicates with the electric air compressor, and a pressure switch is installed on the air dryer; the protection valve communicates with the air dryer through the second air supply pipeline, and a tee joint and a pressure sensor are arranged on the second air supply pipeline; The pressure switch is used to feed back its on-off signal to the vehicle controller; the pressure sensor is used to detect the pressure value of the second air supply pipeline and feed it back to the vehicle controller; the vehicle controller is used to Control the start and stop of the electric air compressor. This application can ensure the safety of air used by the whole vehicle, avoid frequent start-up and stop of the electric air compressor, prolong the service life of the electric air compressor, and avoid electromagnetic interference to other systems caused by the frequent start-up of the electric air compressor.

Description

technical field [0001] The present application relates to the technical field of air brake systems, in particular to a pure electric truck air brake energy supply pipeline system and a control method thereof. Background technique [0002] At present, the demand for electric trucks in the domestic automobile market is gradually increasing, but the braking system of electric trucks is different from conventional engine trucks. Engine trucks provide air source through engine-driven air compressors, while electric truck braking systems need to be equipped with electric air compressors to provide air. [0003] In the related technology, ECU (Electronic Control Unit, electronic control unit) converts the output pressure of the electronically controlled dryer into a voltage signal to control its unloading, backflow recoil and re-supply. When the electronically controlled dryer is unloaded, it directly controls The electric air compressor stops. However, this control strategy has ...

AI Technical Summary

Problems solved by technology

[0004] In view of one of the defects in the prior art, the purpose of this application is to provide a pure electric truck air brake energy supply pipeline system and its control method to solve the problem of single acquisition signal in the control strategy of the related technology and the inability to accurately control the electric air pressure. machine start-stop problem

Images