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A brake-by-wire and functional technology, which is applied in the direction of brake safety systems, can solve problems such as driving safety hazards and brake failure, and achieve the effects of improving reliability, improving brake response speed, and reducing installation space
Active Publication Date: 2021-05-11
SHANDONG JIAOTONG UNIV
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At the same time, EMB also has the problem of brake failure caused by circuit and electronic product failures, which brings safety hazards to driving.
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[0038] In order to clearly illustrate the technical features of the solution, the solution will be described below through a specific implementation mode and in conjunction with the accompanying drawings.
[0039] A brake-by-wire system with redundant functions, including a brake-by-wire brake with a modular design, a brake pump housing 11, a liquid storage chamber 12, a first spring 13, a first piston assembly 14, a retaining ring 15, Rubber ring 16, second spring 17, second piston assembly 18, brake pedal 19, angle sensor 20, controller 22;
[0040] like figure 1 , figure 2 , image 3 As shown, the brake-by-wire brake includes a brake disc 1, a left friction plate 2, a right friction plate 3, a caliper 4, an electromagnetic coil 5, a cylinder assembly 6, a brake pipeline 7, a hydraulic control unit 8, a brake Moving piston 9, magnetostrictive rod 10, wheel speed sensor 21; described brake disc 1 is connected with axle bolt, and left friction plate 2, right friction plate...
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Abstract
The invention relates to a drive-by-wire brake system with a redundancy function. The drive-by-wire brake system comprises a drive-by-wire brake in modular design, a brake pump shell, a liquid storage chamber, a first spring, a first piston assembly, a check ring, a rubber ring, a second spring, a second piston assembly, a brake pedal, an angle sensor and a controller; wherein the drive-by-wire brake comprises a brake disc, a left friction plate, a right friction plate, calipers, an electromagnetic coil, a cylinder body assembly, a brake pipeline, a hydraulic control unit, a brake piston, a magnetostriction rod and a wheel speed sensor. In the invention, the magnetostriction actuator is adopted as a power source of the electronic mechanical braking system, the energy accumulator device is adopted, the braking clearance can be rapidly eliminated, the braking response time is shortened, and high braking control precision and response frequency are achieved; thus, even if the electronic mechanical braking system fails, the vehicle can still be braked by means of a conventional hydraulic braking system, and the reliability is high; in addition, the braking distance can be effectively shortened, and the vehicle driving safety is improved.
Description
technical field [0001] The invention relates to the field of automobile brakes, in particular to a brake-by-wire system with redundant functions. Background technique [0002] Brake is an important part of vehicle safety, and its performance directly affects driving safety. At present, vehicles mainly adopt hydraulic brake system, which has problems such as long brake pipeline, many valve components, brake fluid is easy to pollute the environment, and brake pipeline pressure fluctuations are easy to occur when ABS is working. [0003] Brake-by-wire technology is a new type of braking technology that has emerged in recent years. It does not rely on mechanical or hydraulic connections between the brake and the brake pedal. It uses wires to replace part or all of the brake pipelines, and controls the electronic control through the controller. The components are used to control the braking force and realize the stable and reliable braking control of the car. At present, the br...
Claims
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