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Control method and device of compound braking system and electric vehicle

A control method and compound braking technology, applied in the field of vehicle control, can solve problems such as waste of energy consumption, and achieve the effects of reducing the quality, volume and difficulty of the whole vehicle

Active Publication Date: 2022-02-08
BYD CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] This application proposes a control method and device for a composite braking system and an electric vehicle, so as to provide electric vehicles with the synergistic braking function of the regenerative braking system and the electromechanical braking system. Within the range of all working conditions of the electric vehicle, Make full use of the regenerative braking system to recover energy, improve the cruising range of electric vehicles, and improve the stability and reliability of the composite braking system, which is used to solve the problem of underutilization when triggering the anti-lock braking system in the prior art. The regenerative braking characteristics of the power motor lead to the technical problem of energy waste

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  • Control method and device of compound braking system and electric vehicle
  • Control method and device of compound braking system and electric vehicle
  • Control method and device of compound braking system and electric vehicle

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Embodiment Construction

[0036] Embodiments of the present application are described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote 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 only for explaining the present application, and should not be construed as limiting the present application. On the contrary, the embodiments of the present application include all changes, modifications and equivalents falling within the spirit and scope of the appended claims.

[0037] The control method and device of the compound braking system and the electric vehicle according to the embodiments of the present application will be described below with reference to the accompanying drawings. Before describing the embodiments of the present application in detail, for the sake of easy understanding, the commonly used t...

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Abstract

The present application proposes a control method and device for a composite braking system and an electric vehicle, wherein the composite braking system includes an electromechanical braking system and a regenerative braking system, and the electromechanical braking system is used to form the basic braking torque, regenerative The braking system is used to form regenerative braking torque. The control method includes: obtaining a braking signal, and calculating the required braking torque according to the braking signal; judging whether to trigger the anti-lock braking system; if so, according to the required braking torque and Under anti-lock braking conditions, distribute the basic braking torque and regenerative braking torque; control the electronic mechanical braking system to form the basic braking torque, and control the regenerative braking system to form the regenerative braking torque. The method can provide an electric vehicle with a coordinated braking function of a regenerative braking system and an electromechanical braking system, and fully utilizes the regenerative braking system to recover energy within the full range of working conditions of the electric vehicle to increase the cruising range of the electric vehicle.

Description

technical field [0001] The present application relates to the technical field of vehicle control, in particular to a control method and device for a composite braking system and an electric vehicle. Background technique [0002] As users continue to improve the braking performance of electric vehicles, anti-lock braking system (Anti-lock Braking System, referred to as ABS), traction control system (Traction Control System, referred to as TCS), electronic stability control program (Electronic Stability Program , ESP for short), adaptive cruise control system (Adaptive Cruise Control System, ACC for short) and other electronic control functions are gradually integrated into the braking system of electric vehicles. [0003] In the prior art, when the anti-lock braking system is triggered, braking is performed by an electromechanical brake. [0004] In this way, the regenerative braking characteristics of the power motor are not fully utilized, and energy cannot be effectively ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60W30/18
CPCB60W30/18109B60W30/18127
Inventor 吕海军廖银生
Owner BYD CO LTD
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