Brake caliper assembly of electronic parking brake system for vehicle

Abstract

The invention discloses a brake caliper assembly of an electronic parking brake system for a vehicle. The brake caliper assembly comprises an executing mechanism assembly and parking brake calipers, wherein the executing mechanism assembly is arranged at the head parts of the parking brake calipers and connected with the parking brake calipers through screws; the parking brake calipers comprise a brake caliper body, a parking screw sleeve, a parking screw rod, a piston and friction plates; and antifriction plates are arranged at the end parts of the parking screw rod. Aiming at the problems of low possibility of reduction of axial space, non contribution to arrangement of the axial space of the parking brake caliper assembly, high research, development and manufacturing costs, low product competitiveness and the like in the using process of a needle roller thrust bearing in the prior art, the antifriction plates can be remarkably shortened in axial size, so that the axial space of the parking brake caliper assembly is reduced, the cost of parts is lowered, and the product assembly performance is improved at the same time. Moreover, the brake caliper assembly has the advantage that the complete vehicle kerb mass is relatively reduced.

Description

technical field [0001] The invention is applied to a vehicle chassis system and belongs to the technical field of manufacturing electronic braking systems for vehicles, in particular, it relates to a brake caliper assembly of an electronic parking braking system for vehicles. The vehicles involved in the present invention include but are not limited to gasoline engine vehicles, diesel engine vehicles, natural gas vehicles, methanol fuel vehicles, hybrid vehicles, and pure electric vehicles. Background technique [0002] At present, in the field of electronic brake system manufacturing technology for vehicles, especially in the field of parking brake systems, the application of electronic parking brake systems is becoming more and more extensive, especially in Europe and the United States. It is fairly common and is moving towards having electronic parking systems as standard equipment on vehicles. Domestic electronic parking has also developed rapidly in recent years, and t...

AI Technical Summary

Problems solved by technology

[0012] The technical problem to be solved by the present invention is that the thrust needle roller bearing used in the parking caliper of the current integrated electronic parking actuator has difficulty in shortening the axial dimension, which is not conducive to axial space arrangement, high R&D and manufacturing costs and lack of market competition. Due to technical problems such as force and poor product assembly process, a brake caliper assembly for an electronic parking brake system for vehicles is provided.

Images