Commercial vehicle electrical parking brake control system and method

Abstract

The invention provides a commercial vehicle electrical parking brake control system and method. The commercial vehicle electrical parking brake control system includes an ABS controller, a gearbox controller, an engine controller and an instrument controller which is connected with an EPB controller through a CAN bus; and an electrical parking brake memory valve and the EPB controller are connected with a hard wire, the electrical parking brake memory valve is connected with an energy-storage type spring brake cylinder, an EPB switch and the EPB controller are connected through the hard wire,and an HSA switch is connected with the EPB controller through the hard wire. The control method includes the steps of vehicle status information which is received by the EPB controller, fault diagnosis procedures of the EPB system, mode switch control procedures of the EPB system, automatic mode control procedures of the EPB system, HSA mode control procedures of the EPB system and manual mode control procedures of the EPB system. According to the commercial vehicle electrical parking brake control system and method, automatic parking and automatic parking terminating can be achieved, and a function of auxiliary hill starting can be achieved, and by controlling an output torque and a revolving speed of an engine, flameout seldom happens during hill starting.

Description

technical field [0001] The invention belongs to the technical field of commercial vehicle electronic parking, and relates to a commercial vehicle electronic parking control system and a control method, in particular to an intelligent electronic parking system of an air brake commercial vehicle using spring energy storage for parking braking Architecture and its control methods. Background technique [0002] The application of electronic parking systems in passenger cars is becoming more and more popular, but there are very few applications in the field of commercial vehicles. The reason is that the electronic parking systems on passenger cars basically use motor braking. If commercial vehicles want to adopt the same solution, they need to use a higher-power motor, and the price of the motor increases geometrically with the increase of power, and its cost is unacceptable for OEMs and users. In addition, the operating environment of commercial vehicles is far worse than that ...

AI Technical Summary

Problems solved by technology

[0002] The application of electronic parking systems in passenger cars is becoming more and more popular, but there are very few applications in the field of commercial vehicles. The reason is that the electronic parking systems on passenger cars basically use motor braking. If commercial vehicles want to adopt the same solution, they need to use a higher-power motor, and the price of the motor increases geometrically with the increase of power, and its cost is unacceptable for OEMs and users. In addition, the operating environment of commercial vehicles is far worse than that of passenger vehicles, and the reliability of motors has also become a big problem

At the same time, the operating conditions of passenger cars are very different from those of commercial vehicles with air brakes, and the control method cannot be directly applied to commercial vehicles with air brakes.

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