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A brake-by-wire and functional technology, which is applied in the braking safety system and other directions, can solve problems such as brake failure and driving safety hazards, and achieve the effects of improving reliability, improving braking response speed, and high control precision
Active Publication Date: 2022-04-08
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 brake-by-wire system with redundant functions, which includes a brake-by-wire brake with a modular design, a brake pump housing, a liquid storage chamber, a first spring, a first piston assembly, a retaining ring, and a rubber ring , a second spring, a second piston assembly, a brake pedal, an angle sensor, and a controller; the brake-by-wire brake includes a brake disc, a left friction plate, a right friction plate, a caliper, an electromagnetic coil, a cylinder assembly, a system dynamic pipeline, hydraulic control unit, brake piston, magnetostrictive rod, wheel speed sensor; the present invention uses a magnetostrictive actuator as the power source of the electromechanical braking system, and adopts an accumulator device to quickly eliminate braking The dynamic gap shortens the braking response time, and has high braking control accuracy and response frequency; even if the electromechanical braking system fails, the conventional hydraulic braking system can still be used to brake the vehicle, which has high reliability ; It can effectively shorten the braking distance and improve the driving safety of the vehicle.
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...
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Application Information
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