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Brake booster for electric motor

A technology of brake booster and brake booster, which is applied in the direction of brakes, brake transmission devices, vehicle components, etc., can solve the problems of occupying the space in the engine compartment and unfavorable space utilization of electric vehicles, so as to reduce the realization cost and be widely applicable Sexuality and space-saving effect

Active Publication Date: 2012-06-20
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

Although this method achieves brake boosting, because this method still retains a large volume of vacuum booster, it occupies a large amount of space in the engine compartment, which is not conducive to the space utilization of electric vehicles.

Method used

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  • Brake booster for electric motor
  • Brake booster for electric motor
  • Brake booster for electric motor

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Embodiment Construction

[0019] A brake booster for an electric vehicle proposed by the present invention is described in detail as follows with reference to the accompanying drawings and embodiments.

[0020] The structure of the electric vehicle brake booster of the present invention is as follows: figure 1 As shown, the device is mainly composed of four parts: motor-driven reciprocating cycle booster cylinder booster device 1, used to compress air to obtain high-pressure air for driving the brake booster device; high-pressure energy storage device 2, used to store high-pressure air, Reserve energy for the brake boosting process; the booster drive device 3 is used to follow the brake pedal movement during the braking process and simultaneously boost the braking process; the controller 4 is used to control the booster of the entire brake booster booster device 1 The pressure process, and the on-off of the booster circuit 17 in the booster drive device 3, realize the brake booster.

[0021] The conne...

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Abstract

The invention relates to a brake booster for electric vehicles and belongs to the technical field of electric vehicles. The device mainly comprises four parts: a motor-driven reciprocal circulation pressurization cylinder supercharging device, a high voltage energy storage device, an assistant force drive device and a controller. The controller is connected with the motor-driven reciprocal circulation pressurization cylinder supercharging device, the high voltage energy storage device, the assistant force drive device and a brake signal senor of an automotive brake respectively; the motor-driven reciprocal circulation pressurization cylinder supercharging device is connected with the high voltage energy storage device 2, and the high voltage energy storage device is connected with the assistant force drive device; and the assistant force drive device is connected with the car arrester 5. The brake booster for electric vehicles can save a vacuum booster device with the large volume, and facilitate the realization of the braking of assistant force simultaneously.

Description

technical field [0001] The invention belongs to the technical field of electric vehicles, in particular to the design of a brake booster for electric vehicles. Background technique [0002] With the development of the electric vehicle industry, the driving device of the car has changed from the engine to the battery. Considering that hydraulic braking can quickly and easily realize strong braking and ensure the braking safety of vehicles, most electric vehicles still use traditional hydraulic braking systems. Due to the loss of the vacuum source of the engine, the vacuum booster in the brake system cannot achieve normal brake boost. [0003] Because relying solely on the braking force of the brake pedal is obviously difficult to meet the needs of emergency braking, and greatly increases the required pedal force when the driver brakes, it is easy to make the driver tired. The way to solve the problem on existing electric vehicles is to use an electronic vacuum booster, that...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60T13/74B60T13/66B60T13/26
Inventor 李亮宋健李红志
Owner TSINGHUA UNIV
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