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Electric vehicle and its regenerative braking control method, device and storage medium

An electric vehicle and regenerative braking technology, applied in the automotive field, can solve the problems of reducing braking efficiency, regenerative braking recovery rate, and inability to cooperate well, reducing ABS trigger frequency, high braking efficiency, and increasing electric power. The effect of car battery life

Active Publication Date: 2021-12-07
奇瑞新能源汽车股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The regenerative braking method of rear-drive electric vehicles currently on the market, because the regenerative braking force is added to the rear drive shaft, and the center of gravity of the vehicle is forward during the braking process, the regenerative braking and hydraulic basic braking cannot be well coordinated, reducing the Improved braking efficiency and regenerative braking recovery

Method used

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  • Electric vehicle and its regenerative braking control method, device and storage medium
  • Electric vehicle and its regenerative braking control method, device and storage medium
  • Electric vehicle and its regenerative braking control method, device and storage medium

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Embodiment Construction

[0031] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0032] The electric vehicle and its regenerative braking control method, device and storage medium according to the embodiments of the present invention are described below with reference to the accompanying drawings.

[0033] figure 1 It is a flowchart of a regenerative braking control method for an electric vehicle according to an embodiment of the present invention.

[0034] like figure 1 As shown, the regenerative braking control method of an electric vehicle includes the following steps:

[0035] S11, when the brake pedal...

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Abstract

The invention discloses an electric vehicle and its regenerative braking control method, device and storage medium. Wherein, the regenerative braking control method includes: when the brake pedal of the electric vehicle is triggered, detecting the SOC of the power battery of the electric vehicle, and judging whether the SOC of the power battery is less than or equal to a preset value; if the SOC of the power battery is less than or equal to a preset value, Then detect the vehicle speed signal and wheel speed signal of the electric vehicle, calculate the deceleration of the electric vehicle according to the vehicle speed signal, and calculate the slip rate of the electric vehicle according to the vehicle speed signal and the wheel speed signal; Electric vehicles perform regenerative braking control. In the regenerative braking control method, by controlling the regenerative braking, the ABS trigger frequency can be reduced, the hydraulic foundation braking efficiency can be maximized, the braking safety can be ensured, and the battery life of the electric vehicle can be increased.

Description

technical field [0001] The invention relates to the technical field of automobiles, in particular to an electric vehicle and its regenerative braking control method, device and storage medium. Background technique [0002] The regenerative braking method of rear-drive electric vehicles currently on the market, because the regenerative braking force is added to the rear drive shaft, and the center of gravity of the vehicle is forward during the braking process, the regenerative braking and hydraulic basic braking cannot be well coordinated, reducing the The braking efficiency and regenerative braking recovery rate are improved. Contents of the invention [0003] The present invention aims to solve one of the technical problems in the related art at least to a certain extent. For this reason, an object of the present invention is to propose a regenerative braking control method for an electric vehicle, to reduce the ABS (Anti-lock Braking System, anti-lock braking system) t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60L7/18B60L58/12
CPCB60L7/18B60L2240/12B60L2240/54B60L58/12Y02T10/70
Inventor 徐申敏韩友国吴洪涛杨玉梅张庆徐承付任印连朱晓康
Owner 奇瑞新能源汽车股份有限公司
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