All-drive-by-wire electric vehicle chassis coordination control method based on driver characteristics

An electric vehicle, coordinated control technology, applied to control devices, driver input parameters, vehicle components, etc., to improve steering safety and avoid frequent actions

Active Publication Date: 2019-03-08
CHANGSHU INSTITUTE OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, consider the differences in individual drivers' personalities, solve the problem of chassis dynamics control of full-wire control electric vehicles, and at the same time realize individualized coordinated control of the chassis

Method used

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  • All-drive-by-wire electric vehicle chassis coordination control method based on driver characteristics
  • All-drive-by-wire electric vehicle chassis coordination control method based on driver characteristics
  • All-drive-by-wire electric vehicle chassis coordination control method based on driver characteristics

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Embodiment Construction

[0045] The present invention will be further described below in conjunction with embodiment, should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention, after having read the present invention, those skilled in the art can modify various equivalent forms of the present invention All fall within the scope defined by the appended claims of this application.

[0046] Please combine figure 1 and figure 2 As shown, the steering-by-wire system transmission ratio control system based on driving style includes data acquisition and processing unit 1, state observation unit 2, ideal state calculation unit 3, driver characteristic identification unit 4, personalized ideal state calculation unit 5, lateral dynamics Learning target allocation unit 6 , longitudinal dynamics control unit 7 , longitudinal dynamics execution unit 8 , lateral dynamics control unit 9 and lateral dynamics executi...

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Abstract

The invention discloses an all-drive-by-wire electric vehicle chassis coordination control method based on driver characteristics. The method includes the steps of collecting processing driving behavior parameters and vehicle state direct parameters, estimating vehicle state indirect parameters and road environment parameters, distinguishing the personality characteristics for classifying drivers,calculating longitudinal ideal state parameters and transverse ideal state parameters, conducting personality modifying on the ideal state parameters, distributing personality ideal yaw velocities, calculating the torque of wheels according to the personality longitudinal ideal state parameters and the distributed personality ideal yaw velocities, and calculating the rotating angle of the wheelsaccording to personality side slip angle parameters and distributed personality ideal yaw velocities. By means of the method, it is ensured that a longitudinal dynamics system assists a transverse dynamics system in steering when necessary, the vehicle steering safety is improved, the frequent actions of the longitudinal dynamics system at unnecessary moments are avoided, and meanwhile the personality of a chassis dynamics control system is realized.

Description

technical field [0001] The invention relates to a coordinated control method for a chassis of a wire-controlled vehicle, in particular to a coordinated control method for a fully wired electric vehicle chassis based on driver characteristics. Background technique [0002] With the emergence of control-by-wire technology and the rapid development of electric vehicles, full-wire control electric vehicles that can independently drive, brake and steer have emerged as the times require. Full-by-wire electric vehicles have more controllable degrees of freedom, can realize multiple driving, braking, and steering modes, and have a better foundation for fault-tolerant control. It is one of the future development trends of the automotive industry. [0003] As the core part of the chassis system, the chassis integration or coordinated control method of full-wire control electric vehicles will have a decisive impact on the power, stability, and comfort of the vehicle. At present, there...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W40/10
CPCB60W40/10B60W2520/10B60W2520/105B60W2540/10B60W2540/12B60W2540/18
Inventor 高琳琳姚建红陈庆樟许广举赵付舟王巍刘继承周玮李玉茹
Owner CHANGSHU INSTITUTE OF TECHNOLOGY
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