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Electronic brake booster structure and vehicle brake energy recovery method

An electronic brake and booster technology, applied in the field of vehicle parts, can solve problems affecting the recovery of vehicle braking energy, achieve sufficient recovery and improve safety performance

Active Publication Date: 2020-04-07
菲格智能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] On electric vehicles, in order to increase the cruising range of the vehicle, the vehicle is equipped with a braking energy recovery system for the vehicle. The braking energy recovery system can appl

Method used

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  • Electronic brake booster structure and vehicle brake energy recovery method
  • Electronic brake booster structure and vehicle brake energy recovery method
  • Electronic brake booster structure and vehicle brake energy recovery method

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach

[0057] A specific embodiment is:

[0058] When the electric drive components are normal:

[0059] When the driver starts to step on the brake pedal, the sensor assembly 3 detects the displacement of the main shaft 2, and sends the detection result to the vehicle ECU (vehicle-specific microcomputer processor);

[0060] The ECU compares the detection result with a preset first displacement threshold;

[0061] If the detection result is less than the first displacement threshold, the ECU controls the electric drive assembly 4 to keep off, activates the vehicle braking energy recovery system, and the vehicle braking energy recovery system applies resistance to the vehicle and recovers braking energy;

[0062] If the detection result is greater than or equal to the first displacement threshold, the ECU controls the electric drive assembly 4 to turn on, and the electric drive assembly 4 pushes the ejector rod 1 to input power to the master brake cylinder, and the master brake cylin...

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PUM

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Abstract

The invention provides an electronic brake booster structure and a vehicle brake energy recovery method. The electronic brake booster structure is arranged between a brake pedal and a main brake cylinder of a vehicle, and comprises an ejector rod which can be pushed to input power to the main brake cylinder so as to establish hydraulic pressure for the brake of the vehicle, and a main shaft whichcan bear the pushing of the brake pedal; the main shaft has a first stroke that slides close to the ejector rod, and a second stroke that pushes the ejector rod; the electronic brake booster structurefurther comprises a sensor assembly capable of detecting the displacement of the main shaft and an electric driving unit capable of responding to a detection signal of the sensor assembly to be turned on and off, and the electric driving unit is connected with the ejector rod so as to push the ejector rod. The electronic brake booster structure provided by the invention has a relatively simple structure, and can improve the vehicle brake energy recovery efficiency.

Description

technical field [0001] The invention relates to the technical field of vehicle parts, in particular to an electronic brake booster structure, and also relates to a vehicle braking energy recovery method. Background technique [0002] With the development of the new energy automobile industry, electric vehicles are more and more favored by consumers. In traditional vehicles, the service brake booster adopts the vacuum booster method, and the vacuum source is provided by the engine, and the vacuum booster is evacuated. When the driver steps on the brake pedal, with the assistance of external atmospheric pressure, the brake master cylinder is squeezed to achieve the purpose of braking. [0003] In the electric vehicle braking system, since the power source is replaced by an internal combustion engine, electric vehicles currently use a combination of a vacuum booster and a vacuum pump. This structure requires an additional vacuum pump. The vacuum pump has a large volume and work...

Claims

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Application Information

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IPC IPC(8): B60T13/74
CPCB60T13/745B60T2270/60
Inventor 董苗静李晓龙
Owner 菲格智能科技有限公司
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