Electric power-assisted brake control method and design simulation method, equipment and medium thereof

A technology of electric power assist and braking control, which is applied in the direction of motor generator control, design optimization/simulation, electronic commutation motor control, etc. It can solve the problems of insufficient braking efficiency and stability, and achieve cycle optimization and response The effect of fast speed and stable braking torque

Pending Publication Date: 2021-12-07
WUHAN UNIV OF TECH
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0004] The electric power-assisted braking system based on the permanent magnet synchronous motor adopts the traditional PID control. Although the traditional PID control can meet the basic braking effect, it is slightly insufficient in terms of braking efficiency and stability. needs further improvement

Method used

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  • Electric power-assisted brake control method and design simulation method, equipment and medium thereof
  • Electric power-assisted brake control method and design simulation method, equipment and medium thereof
  • Electric power-assisted brake control method and design simulation method, equipment and medium thereof

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Embodiment Construction

[0042] Preferred embodiments of the application are described in detail below in conjunction with the accompanying drawings, wherein the drawings constitute a part of the application and together with the embodiments of the application are used to explain the principles of the application and are not intended to limit the scope of the application.

[0043] In the description of the present application, "plurality" means two or more, unless otherwise specifically defined.

[0044] refer to figure 1 It is a method flowchart of an embodiment of the electric power assist braking control method provided in this application. The electric power assist braking control method is applied to the electric power assist braking system. The electric power assist braking system includes a hydraulic system and a motor. The method includes the following The above steps:

[0045] S101. Obtain the operation measurement data of the permanent magnet synchronous motor, and determine the predicted c...

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Abstract

The invention relates to an electric power-assisted brake control method, a design simulation method thereof, equipment and a medium. The method comprises the following steps: obtaining the operation measurement data of a permanent magnet synchronous motor, and determining the predicted current of the permanent magnet synchronous motor under different voltage vectors based on a current prediction model; determining a cost function according to the predicted current of the permanent magnet synchronous motor and a preset reference current; according to the cost function minimum principle, the optimal voltage vector is determined and output to the permanent magnet synchronous motor so that the permanent magnet synchronous motor can output the target braking torque, and the target braking torque is transmitted to the hydraulic system so that the hydraulic system can generate braking pressure. The response speed to the permanent magnet synchronous motor is high, the generated braking torque is relatively stable, and the electric power-assisted braking effect can be effectively improved.

Description

technical field [0001] The present application relates to the technical field of automobile braking, in particular to a control method for electric power-assisted braking and a design and simulation method, equipment and media thereof. Background technique [0002] With the rapid development of automotive electronic control technology, automobiles are also developing toward "electricity, intelligence, networking, and sharing". Therefore, new requirements are put forward for the braking system of the car. [0003] The braking system used in traditional fuel vehicles is composed of a vacuum booster, a brake master cylinder and a brake wheel cylinder. During the driving process of the car, the engine is used to extract the vacuum to achieve the effect of vacuum boosting. With the rapid development of new energy vehicles in recent years, the driving force of the car is not provided by the engine, but by the battery and the drive motor. Therefore, the vacuum The booster has los...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P6/24H02P6/34H02P21/36G06F30/20
CPCH02P6/24H02P6/34H02P21/36G06F30/20
Inventor 魏翼鹰刘伟杨寅鹏史孟颜邹琳张晖赵品周宸张亚磊
Owner WUHAN UNIV OF TECH
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