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Feedback-based electric vehicle yaw stability real-time control device and method

A real-time control, electric vehicle technology that is used in control gear, vehicle components, transportation, and packaging to ensure yaw stability

Active Publication Date: 2019-02-01
ZHEJIANG DONGFANG ELECTROMECHANICAL
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of this application is to provide a real-time control method for the yaw stability of a distributed drive electric vehicle based on sensor feedback, so as to solve the problem of precise control of the yaw stability of a distributed drive electric vehicle during driving

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Embodiment Construction

[0031] The present invention will be further described in detail below in conjunction with the accompanying drawings, so that those skilled in the art can implement it with reference to the description.

[0032] It should be understood that terms such as "having", "comprising" and "including" as used herein do not entail the presence or addition of one or more other elements or combinations thereof.

[0033] Such as figure 1 As shown, a feedback-based real-time control device for yaw stability of an electric vehicle includes an upper controller 1 and a lower controller 2, the upper controller 1 and the lower controller 2 are separated, and the transmission of the vehicle state is completed through the signal transmission line .

[0034] Such as figure 2 As shown, the upper controller 1 is provided with three parts: a sensor unit 3, a model predictive controller 4 and a direct yaw moment calculation unit 5, the output end of the sensor unit 3 is connected to the input end of...

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Abstract

The invention discloses a feedback-based electric vehicle yaw stability real-time control device and method. The feedback-based electric vehicle yaw stability real-time control device comprises an upper layer controller and a lower layer controller. The upper layer controller is provided with a sensor unit, a model prediction controller and a direct yaw moment calculation unit. The lower layer controller is provided with a judgment and decision unit and a direct yaw moment execution unit, and the direct yaw moment execution unit controls the driving torque of a target wheel. The feedback-basedelectric vehicle yaw stability real-time control method adopts a layered control structure, required signals are provided by a sensor, measurable quantity is adopted, and the sensor real-time feedback and a model predictive control algorithm are used for designing the upper layer controller to calculate required direct yaw moment for maintaining the yaw stability in the movement process of the whole vehicle; and the lower layer controller ensures that direct yaw moment commands emitted from the upper layer controller are realized by the distribution of the driving torque, it is ensured that avehicle can achieve stable driving under different working conditions, and the yaw stability of an electric vehicle is improved.

Description

technical field [0001] The invention relates to the technical field of electric vehicles and their stability control, in particular to a real-time control method for the yaw stability of a distributed drive electric vehicle based on sensor feedback, and in particular to a feedback-based real-time control device and method for the yaw stability of an electric vehicle . Background technique [0002] In today's increasingly severe energy shortage and increasingly serious environmental pollution, the development of electric vehicles is the general trend. Distributed drive electric vehicles have four independent hub motors. At the same time, the motors respond quickly, and parameters such as torque and speed are easy to obtain. Therefore, the driving torque of each wheel can be independently and accurately controlled directly to improve the driving performance of the electric vehicle under severe road conditions. [0003] Vehicle yaw stability control is very important for dist...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W40/10B60W40/105B60W40/112B60W30/02B60W50/00B60W10/08
CPCB60W10/08B60W30/02B60W40/10B60W40/105B60W40/112B60W50/00B60W2050/0031B60W2520/10B60W2520/125B60W2520/28B60W2540/18B60W2710/083
Inventor 袁小芳
Owner ZHEJIANG DONGFANG ELECTROMECHANICAL
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