Electrical park brake (EPB) system and park control method

Abstract

The invention provides an electrical park brake (EPB) system and a park control method. The EPB system integrates a temporary brake function in the driving process with a long-term brake function after park, an EPB technology integrated with front and rear brake calipers is adopted, the system has a manual park brake function and an automatic park brake function simultaneously, the manual park brake function comprises the conventional basic park control function and emergency park brake function, and the automatic park brake function comprises a ramp departure control function, an automatic park control function and a slip reclamp control function, so that park, brake, start, departure and the like are performed under the direct instruction and automatic control of the EPB system through the functions, park brake is more safely and reliably performed, and the system is more simply, conveniently and intelligently operated.

Description

technical field [0001] The invention relates to the field of parking brakes for automobiles, and more specifically relates to an electronic parking brake system based on brake-by-wire technology and a parking control method thereof. Background technique [0002] The parking brake of the car traditionally relies on the mechanical hand brake for parking brake. This kind of traditional mechanical hand brake parking brake is very inconvenient to use, and the strength of different drivers is different. The hand brake parking brake lever The parking brake may have a different actual effect on the braking force. In addition, the hand brake occupies a limited space in the car, and the response time of the parking brake is relatively long. With the continuous advancement of automobile technology, more and more automobile control components have gradually changed from traditional mechanical control to electronic control. The electronic parking brake system uses electric energy to real...

AI Technical Summary

Problems solved by technology

[0002] The parking brake of the car traditionally relies on the mechanical hand brake for parking brake. This kind of traditional mechanical hand brake parking brake is very inconvenient to use, and the strength of different drivers is different. The hand brake parking brake lever The parking brake may have a different actual effect on the braking force. In addition, the handbrake occupies a limited space in the car, and the response time of the parking brake is relatively long.

With the continuous advancement of automobile technology, more and more automobile control components have gradually changed from traditional mechanical control to electronic control. The electronic parking brake system uses electric energy to realize the function of the traditional parking brake system. Most of the existing electronic parking brake systems are used to temporarily brake the vehicle instead of the traditional hand brake, that is, to replace the traditional parking brake method of hand-pulled parking brake lever with hand-pressed parking brake. Compared with the traditional hand brake, the parking brake mode of the brake button is easier to operate, but the function of the existing electronic parking brake system is similar to that of the traditional hand brake. It is simple and cannot perform automatic parking brake control other than manual control on the vehicle, so its intelligence is low, and the existing electronic parking brake system is the same as the hand brake, and does not use the integrated front and rear brake calipers. technology, its braking safety is low, so the function and performance of the electronic parking system in the prior art need to be further improved to meet the driving needs of vehicles with higher safety and convenient operation

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