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Parallel-type braking energy recovery system and control method thereof

A technology of braking energy recovery and control method, applied in electric braking systems, electric vehicles, transportation and packaging, etc., can solve problems such as high cost and complex technology, and achieve the effects of low cost, easy control and simple structure

Active Publication Date: 2014-06-04
BEIJING ELECTRIC VEHICLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing braking energy recovery system needs to solve two problems: one is how to distribute the required total braking force on the front and rear axles to recover as much vehicle kinetic energy as possible; the other is how to distribute the total braking force on the front and rear axles to achieve stable braking
Currently used technology is complex and costly

Method used

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  • Parallel-type braking energy recovery system and control method thereof
  • Parallel-type braking energy recovery system and control method thereof
  • Parallel-type braking energy recovery system and control method thereof

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Embodiment Construction

[0020] refer to Figure 1 to Figure 3 Examples of the present invention will be described.

[0021] In order to make the above objects, features and advantages more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0022] Such as figure 1 As shown, a parallel brake energy recovery system includes: brake pedal 1, brake pedal switch 2, brake master cylinder 3, master cylinder pressure sensor 4, brake anti-lock braking system 5, vehicle controller 6. Motor controller 7, battery management system 8, wherein the brake pedal switch 2 is controlled by the brake pedal 1, and the vehicle controller 6 collects the signals of the brake pedal switch 2 and the master cylinder pressure sensor 4, and communicates with the motor controller 7 Communicate with the battery management system 8 to send information status and control instructions. The vehicle controller 6 responds to the pressu...

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Abstract

The invention discloses a parallel-type braking energy recovery system and a control method thereof, and relates to the technical field of electric automobiles. The energy recovery system comprises a brake pedal, a brake pedal switch, a brake master cylinder, a master cylinder pressure sensor, a brake anti-lock system, a whole vehicle controller, a motor controller and a cell management system, wherein the brake pedal switch is controlled by the brake pedal switch; and the whole vehicle controller collects signals of the brake pedal switch and the master cylinder pressure sensor, communicates with the motor controller and the cell management system, sends information states and control commands, and carries out brake energy recovery and electric braking torque control according to the pressure of the brake master cylinder, which reflects the depth of the brake pedal trodden on by a driver, the motor controller, the cell management system and an ABS information state. The invention further discloses the parallel-type braking energy recovery control method. The invention has the advantages that the structure is simple; the cost is low; and the controlling is easy.

Description

technical field [0001] The invention relates to the technical field of electric vehicles, in particular to a parallel braking energy recovery system and a control method thereof. Background technique [0002] Because electric vehicles have the characteristics of no pollution, low noise, and energy saving, the electric vehicle industry has begun to develop rapidly. Studies have shown that in urban driving conditions, about 1 / 3 to 1 / 2 of the energy is consumed in the braking process. Due to the driving characteristics of electric vehicles, when braking and decelerating, the braking energy It can be converted into electrical energy and stored in the power battery (called braking energy recovery) to reduce power consumption and extend driving range. The existing braking energy recovery system needs to solve two problems: one is how to distribute the required total braking force on the front and rear axles to recover as much vehicle kinetic energy as possible; the other is how t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60L7/10
Inventor 张兆龙张青平魏跃远刘三兵
Owner BEIJING ELECTRIC VEHICLE
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