Vehicle braking assembly, vehicle braking system and vehicle

Abstract

The invention discloses a vehicle braking assembly, a vehicle braking system and a vehicle. The vehicle braking assembly comprises a braking disc, a braking pincer support, a friction pad, a first piston and a second piston. A containing groove for containing the braking disc is arranged in the braking pincer support. The containing groove is provided with a rotating-in opening for rotating the braking disc into the containing groove, and a rotating-out opening for rotating the braking disc out of the containing groove. The second piston is close to the rotating-out opening relative to the first piston. The cylinder diameter of a piston cylinder of the second piston is larger than that of a piston cylinder of the first piston. According to the vehicle braking assembly, the differential value between kinetic friction force, between the rotating-out opening and the braking, of the friction pad and the kinetic friction force, between the rotating-in opening and the braking disc, of the friction pad is smaller, eccentric abrasion between the friction pad and the braking disc at the rotating-in opening is further avoided, and braking reliability of the vehicle braking system to the vehicle is improved.

Description

technical field [0001] The invention relates to the field of vehicle manufacturing, in particular to a vehicle brake assembly, a vehicle brake system and a vehicle. Background technique [0002] Because the single-cylinder brake caliper of the vehicle occupies a large radial dimension of the brake disc, in large SUVs and other models, the front axle load of the vehicle is relatively large, and the single-cylinder brake caliper is not easy to arrange, so it is necessary to use a double-cylinder brake caliper. In the related technology, the two piston cylinders of the double-cylinder brake caliper are arranged along the circumference of the brake disc. When the vehicle brakes, the two piston cylinders push the friction plate to press the brake disc to slow down and stop the brake disc. . [0003] Since the brake disc still rotates during braking, the friction plate is easily affected by the static friction force exerted by the brake disc when braking the brake disc, and moves...

AI Technical Summary

Problems solved by technology

[0003] Since the brake disc still rotates during braking, the friction plate is easily affected by the static friction force exerted by the brake disc when braking the brake disc, and moves together with the brake disc and moves between the brake disc and the brake caliper bracket. The rotating outlet of the brake caliper interferes with the brake caliper bracket, and the friction plate is subjected to the friction force of the brake caliper bracket, and the resultant pressure force on the brake disc at the rotating outlet of the brake caliper bracket is reduced, so that the friction plate is opposite to the brake caliper at the screw inlet. The friction force of the brake disc is greater than the friction force of the friction plate on the brake disc at the screw outlet, which will cause the friction plate to wear eccentrically with the brake disc at the screw inlet, shorten the service life of the friction plate, and affect the parking performance of the vehicle

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