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A Coordinated Control Method for the Chassis of Full-by-Wire Electric Vehicles 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: 2020-10-02
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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  • A Coordinated Control Method for the Chassis of Full-by-Wire Electric Vehicles Based on Driver Characteristics
  • A Coordinated Control Method for the Chassis of Full-by-Wire Electric Vehicles Based on Driver Characteristics
  • A Coordinated Control Method for the Chassis of Full-by-Wire Electric Vehicles Based on Driver Characteristics

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Embodiment Construction

[0045] The present invention will be further explained below in conjunction with examples. It should be understood that these examples are only used to illustrate the present invention and not to limit the scope of the present invention. After reading the present invention, those skilled in the art will 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 drive-by-wire steering system transmission ratio control system based on driving style includes a data acquisition and processing unit 1, a state observation unit 2, an ideal state calculation unit 3, a driver characteristic identification unit 4, a personalized ideal state calculation unit 5, and lateral power Learning target allocation unit 6, longitudinal dynamics control unit 7, longitudinal dynamics execution unit 8, lateral dynamics control unit 9, and lateral dynamics execution un...

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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 the chassis of a wire-controlled automobile, in particular to a coordinated control method for the chassis of a full-wire-controlled electric automobile based on driver characteristics. Background technique [0002] With the emergence of wire control technology and the rapid development of electric vehicles, a full wire control electric vehicle that can independently drive, brake and steer has emerged. Full-wire control electric vehicles have more controllable freedom, can realize a variety of driving, braking, and steering modes, and have a better fault-tolerant control foundation, which is one of the future development trends of the automotive industry. [0003] As the core part of the chassis system, the full-wire control electric vehicle chassis integration or coordinated control method will have a decisive impact on the vehicle power, stability, and comfort. At present, there have been many resea...

Claims

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Application Information

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Patent Type & Authority Patents(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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