Control Strategy for Handling Stability of a Four-Wheel Drive Formula Student Electric Car

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Abstract

This paper presents a control strategy for the handling stability of a four-wheel drive formula student electric car. The wheel speed correction algorithm based on double track model and the car speed estimation algorithm based on Kalman filter are designed to lay the foundation for good handling and stability control. Based on the hierarchical control theory, direct yaw moment control is divided into three control layers: motion tracking layer, torque distribution layer and slip rate control layer. In the motion tracking layer, combined with the linear two-degree-of-freedom vehicle model, the anti-saturation integral PID algorithm is used to obtain the ideal value of the yaw rate. In the torque distribution layer, an additional yaw moment is generated by the method of equal distribution of inner and outer sides and proportional distribution of front and rear axles to realize the control of the driving stability of the car. In the slip rate control layer, a synovial variable structure control method is adopted to make the actual wheel slip rate the same as the target slip rate. A joint simulation model was built based on Carsim and Simulink, and the control strategy in-loop simulation verification was completed. An electric formula racing test platform was built, and the feasibility of the control strategy was further verified in the four-wheel drive formula student electric car.

Original languageEnglish
Title of host publicationProceedings of China SAE Congress 2020
Subtitle of host publicationSelected Papers
PublisherSpringer Science and Business Media Deutschland GmbH
Pages221-235
Number of pages15
ISBN (Print)9789811620898
DOIs
StatePublished - 2022
EventChina SAE Congress, 2020 - Shanghai, China
Duration: 27 Oct 202029 Oct 2020

Publication series

NameLecture Notes in Electrical Engineering
Volume769
ISSN (Print)1876-1100
ISSN (Electronic)1876-1119

Conference

ConferenceChina SAE Congress, 2020
Country/TerritoryChina
CityShanghai
Period27/10/2029/10/20

Keywords

  • Formula student electric China
  • Four-wheel drive
  • Handling stability control
  • Hierarchical control
  • Speed estimation

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