An electric power-assisted braking system based on a dual-rotor motor

Abstract

The invention provides an electric power-assisted braking system based on a double rotor motor. The permanent magnetic brushless double rotor motor is adopted in a shell to substitute a single rotor motor. An outer rotor is connected with a main cylinder to achieve braking power assisting, and an inner rotor is connected with a braking pedal to achieve pedal feeling simulation. An electric three-jaw clamping disc is arranged in the shell. When the double rotor motor loses efficacy due to breakdowns, through control over the action of the electric three-jaw clamping disc, braking force of a driver can be directly acted on the main cylinder to generate the braking force, the inner rotor and the outer rotor can be separately controlled, braking power assisting and braking feeling feedback arenot interfered with each other, coupling and uncoupling of the driver braking force and the motor braking force can be conveniently achieved, and complex parts such as a pedal feeling simulator for achieving the functions in the prior art are omitted; and the structure is simple, the size is small, actual vehicle arrangement is facilitated, the functions such as active braking and failure back-upare achieved, the active control technologies such as an ESP and an ACC can further be integrated, and vehicle intelligent control is achieved.

Description

technical field [0001] The invention belongs to the field of automobile braking devices in the field of vehicle engineering, and relates to an electric power-assisted braking system based on a double-rotor motor. Background technique [0002] With the rapid development of electric vehicles and smart vehicles, the traditional vacuum booster hydraulic braking system can no longer meet the requirements. The development of electro-hydraulic brake (EHB) and electro-mechanical brake (EMB) is also restricted due to problems such as high energy consumption and no fail-safe. In recent years, the electric power-assisted braking system has become a research hotspot in the braking industry. Since the electric power-assisted braking system cancels the vacuum booster commonly used in traditional vehicles, and has a simple structure, low energy consumption, failure protection, and convenient layout, it will become an inevitable direction for the development of the braking system. [0003...

AI Technical Summary

Problems solved by technology

[0007] In order to overcome the defect in the prior art that the braking force of the driver and the braking force of the motor cannot be effectively coupled and decoupled, the present invention provides an electric power-assisted braking system based on a dual-rotor motor, which can not only effectively realize driving Coupling and decoupling the braking force of the driver and the braking force of the motor, and can also provide a variety of braking modes by setting different control strategies for the inner and outer rotors and the electric three-jaw chuck

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