Electronic parking system combined with driving system and control method

Abstract

The invention discloses an electronic parking system combined with a drivingsystem and a control method, and the electronic parking system comprises a driving air cylinder, a parking air cylinder, a brake pedal belt brake valve, a front driving air chamber, a rear spring air chamber, an EPB switch, an EPB electric control valve assembly, an ASR valve and a two-way valve, wherein the driving air cylinder is communicated with the brake pedal belt brake valve; the air inlet end of the ASR valve is communicated with the driving air cylinder, the two air inlet ends of the two-way valve are communicated with the air outlet end of the ASR valve and the air outlet end of the brake pedal with the brake valve respectively, the air outlet end of the two-way valve is communicated with a driving cavity of the front driving air chamber or the rear spring air chamber, and the parking air cylinder is communicated with the air inlet end of the EPB electric control valve assembly. The air outlet end of the EPB electric control valve assembly is communicated with a parking cavity of the rear spring air chamber, the EPB switch is electrically connected with the EPB electric control valve assembly, and the EPB electric control valve assembly is electrically connected with the ASR valve. An electronic parking control system is combined with a driving braking system, so that the electronic parking system works by adopting an air chamber of a driving system.

Description

technical field [0001] The invention discloses an electronic parking system and a control method, which belong to the technical field of vehicle parking systems, and specifically discloses an electronic parking system and a control method combined with a driving system. Background technique [0002] With the upgrading of truck drivers, young drivers are also interested in the configuration of electronic parking system (EPB). Currently, truck manufacturers are researching air braking electronic parking systems, but the current solutions are all related to driving. The system functions are independent of each other. The electronic parking system realizes some intelligent functions by controlling the parking cavity of the spring air chamber, such as temporary parking, slope assistance, and emergency braking, while the spring air chamber is an air-off brake structure, that is, ventilation is used to release the brake, and air-off is used to implement the brake. , mainly rely on...

AI Technical Summary

Problems solved by technology

[0002] With the upgrading of truck drivers, young drivers are also interested in the configuration of electronic parking system (EPB). Currently, truck manufacturers are researching air braking electronic parking systems, but the current solutions are all related to driving. System functions are independent of each other

The electronic parking system realizes some intelligent functions by controlling the parking cavity of the spring air chamber, such as temporary parking, slope assistance, and emergency braking, while the spring air chamber is an air-off brake structure, that is, ventilation is used to release the brake, and air-off is used to implement the brake. , mainly rely on the internal compression spring to implement the brake, the volume of the air chamber is large and long, the inflation and deflation are slow, the response is poor, and the precision is low, which will lead to the following disadvantages: 1. When the function is stopped, the driving chamber and the The air in the parking chamber is all removed, which wastes compressed air, increases the work of the air compressor, wastes energy, and reduces the life of the air compressor; 2. When starting at a stop and assisting on a hill, it will cause delays in starting and affect driving comfort At the same time, it will cause the wheels to become hot and the friction plate mode will be intensified; 3. In emergency parking, because there is no ABS anti-lock function, it is easy to drift and drift, and at the same time, only the rear axle can be used for emergency, and the emergency deceleration of the whole vehicle is low. , the braking distance becomes longer

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