Automobile EBS system based on braking main valve

Abstract

The invention discloses an automobile EBS system based on a braking main valve. The automobile EBS system comprises an EBS electronic control unit, the braking main valve, a front shaft braking air chamber, a rear shaft braking air chamber, a first electromagnetic valve assembly, a second electromagnetic valve assembly, a first proportional relay valve, a second proportional relay valve, an electromagnetic valve, a wheel speed detection device and a pressure sensor assembly. The braking main valve is provided with a first loop air outlet and a second loop air outlet. The front shaft braking air chamber is sequentially connected with the first electromagnetic valve assembly, the first proportional relay valve, the electromagnetic valve, the pressure sensor and the second loop air outlet through a control pipeline. The rear shaft braking air chamber is sequentially connected with the second electromagnetic valve assembly, the second proportional relay valve and the first loop air outlet through a control pipeline. The EBS electronic control unit is electrically connected with the braking main valve, the first electromagnetic valve assembly, the second electromagnetic valve assembly, the first proportional relay valve, a second proportional relay valve, the electromagnetic valve, the wheel speed detection device and the pressure sensor assembly. The automobile EBS system is low in cost and enables the arrangement difficulty of a whole automobile to be reduced.

Description

technical field [0001] The invention relates to automobile braking technology, in particular to an automobile EBS system based on a master brake valve. Background technique [0002] At present, domestic commercial vehicles mainly use EBS systems composed of electronically controlled brake master valves, proportional relay valves, bridge control regulators, backup pressure valves and electronically controlled trailer valves. That is, when the driver actuates the pedal, the electronically controlled brake master valve transmits the obtained pedal stroke signal to the electronic control unit ECU to identify the braking requirement of the vehicle, and at the same time obtains the wheel speed signal from the speed sensor, and the ECU receives it through processing Then calculate according to the corresponding control strategy, and output a certain index pressure value, and control the front and rear axles to perform braking by controlling the proportional relay valve, ABS solenoi...

AI Technical Summary

Problems solved by technology

[0007] However, compared with the conventional brake system, the above-mentioned EBS system used on commercial vehicles adds a proportional relay valve, a backup pressure valve, and a bridge control regulator, and needs to redevelop an electronically controlled brake master valve and a Electric trailer valve

Therefore, adopting the above commercial vehicle EBS system solution will greatly increase the number of vehicle parts, greatly increase the cost of the vehicle and increase the difficulty of vehicle layout

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