Wedge-shaped power-enhanced wire control brake

Abstract

The invention discloses a wedge-shaped power-enhanced wire control brake. The wedge-shaped power-enhanced wire control brake comprises a calliper, a left friction piece, a right friction piece, a brake disc, a driven electromagnetic disc, a driving electromagnetic disc, a retaining ring, a returning spring assembly, a piston, a brake pedal sensor, a wheel speed sensor and a brake; the left friction piece and the right friction piece are respectively mounted in notches which are adapted to the left friction piece and the right friction piece in the calliper to limit rotatably; the piston is mounted in a guide hole in the calliper; the end part of the plane of the piston is in surface contact with a back steel surface of the right friction piece; the end part of a wedge surface of the pistonis in contact with the wedge surface of a wedge-shaped plate on the driven electromagnetic disc so as to achieve a power enhancing effect; and the returning spring assembly is mounted between the driven electromagnetic disc and an end cap and is used for resetting when the brake of the driven electromagnetic disc is ended. According to the wedge-shaped power-enhanced wire control brake, the kinetic energy of a vehicle can be fully utilized, and the friction pieces are pushed to tightly press the brake disc to brake by a wedge-shaped power-enhancing structure in a mode of fetching force through electromagnetic discs, so that the cost is effectively reduced, the mounting space is reduced, a brake instruction is responded quickly, the brake distance is shortened and the brake safety is improved.

Description

technical field [0001] The invention relates to automobile brakes, in particular to a wedge-shaped booster wire-controlled brake. Background technique [0002] In recent years, my country's new energy vehicles have developed rapidly. However, there are still many technical problems in new energy vehicles that have not been effectively resolved. The key problem is the low driving range. However, the battery capacity cannot be increased simply by increasing the number of batteries. In order to increase the driving range of new energy vehicles, it is often solved by sacrificing the comfort of the driver, such as removing the air conditioner. It is also an effective technical means to increase the driving range of new energy vehicles by reducing the power consumption of accessories. [0003] At present, the vehicle braking system mainly adopts the hydraulic braking mode. The braking system of conventional fuel vehicles uses the vacuum at the engine throat to assist the brake b...

AI Technical Summary

Problems solved by technology

[0005] The existing brake-by-wire system mainly uses the motor as the braking power source, and the speed reduction and torque increase and power transmission are performed through the reduction mechanism. Since the braking gap between the friction plate and the brake disc is very small, the brake motor It is often in a locked-rotor state when running, which requires extremely high performance of the motor, which leads to high prices; at the same time, it is difficult to solve the contradiction between the motor torque and structural size, which restricts market promotion and application

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