A kind of multifunctional vehicle braking system

Abstract

A multifunctional automobile braking system comprises a braking main cylinder, a vacuum booster pump, a brake pedal, a brake, a hydraulic pump, a decompression valve and a pressure retaining valve. The brake pedal drives the braking main cylinder through the vacuum booster pump. The braking main cylinder is connected with the brake for front wheels and rear wheels through a brake pipe. The pressure retaining valve is arranged on the brake pipe. An oil suction opening of the hydraulic pump is connected with a liquid storage tank on the braking main cylinder through an oil pipe. An oil outlet of the hydraulic pump is connected with the portion, between the braking main cylinder and the pressure retaining valve, of the brake pipe. One end of the pressurization pump is connected with the portion, between the braking main cylinder and the pressure retaining valve, of the brake pipe, and the other end of the pressurization pump is connected with the liquid storage tank on the braking main cylinder through an oil pipe. According to the multifunctional automobile braking system, a driving braking system, a parking braking system and an emergency braking system are integrated, manufacturing cost of the braking system is reduced, and due to the fact that the front wheels and the rear wheels are simultaneously braked, the parking braking force of an automobile is increased, and safety of the automobile and safety of pedestrians are ensured.

Description

technical field [0001] The invention relates to an automobile brake system integrating the functions of driving brake, emergency brake and parking brake, and belongs to the technical field of automobiles. Background technique [0002] Existing automobiles are generally equipped with separate service brake systems and parking brake systems, wherein the service brake system simultaneously brakes the front and rear wheels of the vehicle (such as the brake system disclosed in the invention patents with application numbers 200910224130.2 and 200910167078.1 ), while the parking brake system only brakes the rear wheels of the vehicle (such as the parking brake system disclosed in the invention patent with application number 200880107426. The problem of insufficient braking force cannot guarantee the safety of vehicles and pedestrians. [0003] Most of the existing automatic parking systems are electric calipers or electric pull-wire parking systems, and their basic components incl...

AI Technical Summary

Problems solved by technology

[0002] Existing automobiles are generally equipped with separate service brake systems and parking brake systems, wherein the service brake system simultaneously brakes the front and rear wheels of the vehicle (such as the brake system disclosed in the invention patents with application numbers 200910224130.2 and 200910167078.1 ), while the parking brake system only brakes the rear wheels of the vehicle (such as the parking brake system disclosed in the invention patent with application number 200880107426. The problem of insufficient braking force cannot guarantee the safety of vehicles and pedestrians

[0003] Most of the existing automatic parking systems are electric caliper or electric pull-wire parking systems, and their basic components include electric force applying mechanism, deceleration mechanism, etc., and the manufacturing cost is relatively high

Moreover, the operation is relatively complicated, and it cannot act immediately after stepping on the brake pedal, which increases the driving difficulty of the driver and cannot realize real automation.

In addition, the existing automatic parking system cannot release the brake under certain working conditions (such as vehicle power shortage, etc.), which brings inconvenience to the use of the vehicle

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