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Control method and device of composite braking system, and electric automobile

A compound braking and control method technology, which is applied in the direction of electric vehicles, control devices, electric braking systems, etc., can solve problems such as failure to recover energy, waste of energy consumption, and insufficient use of the feedback braking characteristics of power motors, etc., to achieve improved Stability and reliability, and the effect of improving cruising range

Pending Publication Date: 2020-06-09
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the prior art, electric vehicles mainly use the Electromechanical Brake System (EMB) for braking, which does not make full use of the regenerative braking characteristics of the power motor, and cannot effectively recover energy during braking, resulting in excessive energy consumption. waste

Method used

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  • Control method and device of composite braking system, and electric automobile
  • Control method and device of composite braking system, and electric automobile
  • Control method and device of composite braking system, and electric automobile

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Embodiment Construction

[0026] Embodiments of the present application are described in detail below, examples of which 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.

[0027] The method and device for controlling the composite braking system 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 technical terms are firstly introd...

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PUM

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Abstract

The invention provides a control method and device of a composite braking system, and an electric vehicle. The composite braking system comprises an electromechanical braking system and a regenerativebraking system, the electromechanical braking system is used for forming basic braking torque, and the regenerative braking system is used for forming regenerative braking torque. The control methodcomprises the following steps: obtaining a braking signal, and calculating the required braking torque according to the braking signal; distributing the basic braking torque and the regenerative braking torque according to the required braking torque and the current working condition; and controlling the electromechanical braking system to form the basic braking torque, and controlling the regenerative braking system to form the regenerative braking torque. The system can fully utilize the regenerative braking system to recover energy within the full working condition range of the electric automobile, and the endurance mileage of the electric automobile is increased.

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] In the prior art, electric vehicles mainly use the Electromechanical Brake System (EMB) for braking, which does not make full use of the regenerative braking characteristics of the power motor, and cannot effectively recover energy during braking, resulting in excessive energy consumption. waste. Contents of the invention [0003] 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, increase the cruising range ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L15/20B60L7/10
CPCB60L7/10B60L15/2009B60L2240/423Y02T10/72
Inventor 吕海军廖银生
Owner BYD CO LTD
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