Simulation Research on an Electric Vehicle Chassis System Based on a Collaborative Control System

Abstract

This paper presents a collaborative control system for an electric vehicle chassis based on a centralized and hierarchical control architecture. The centralized controller was designed for the suspension and steering system, which is used for improving ride comfort and handling stability; the hierarchical controller was designed for the braking system, which is used for distributing the proportion of hydraulic braking and regenerative braking to improve braking performance. These two sub-controllers function at the same level of the vehicle chassis control system. In order to reduce the potential conflict between the two sub-controllers and realize a coordination optimization of electric vehicle performance, a collaborative controller was built, which serves as the upper controller to carry out an overall coordination analysis according to vehicle signals and revises the decisions of sub-controllers. A simulation experiment was carried out with the MATLAB/Simulink software. The simulation results show that the proposed collaborative control system can achieve an optimized vehicle handling stability and braking safety.

Game-Based Hierarchical Cooperative Control for Electric Vehicle Lateral Stability via Active Four-Wheel Steering and Direct Yaw-Moment Control

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Comprehensive design and optimization of an electric vehicle powertrain equipped with a two-speed dual-clutch transmission

“…[2][3][4][5][6] Recently, an increasing number of researchers have been paying attention to the development of PHEV and EV to reduce fossil fuel consumption and improve vehicle powertrain system efficiencies. So far, various methods can be applied in relation to modeling and optimizing pure EVs, such as powertrain system component design, 4,7 topology analysis, [8][9][10] batteries, energy management strategies and analysis, 2,6,[11][12][13][14][15] application of super-capacitor, 16 and drive control [17][18][19][20] of EVs. However, there are only a limited number of available reports on the application of multi-speed transmission to EVs.…”

Shift control strategy simulation on dual motor driven electric vehicle

“…Compared with the traditional vehicle, electric vehicle can not only ensure good dynamic performance but also significantly improve fuel economy and reduce emissions, so the research and development of electric drive system has important significance [1,2]. Traditional vehicle because of its centralized driven mode, there must be a power interruption and shift impact problems during automatic mechanical transmission (AMT) shift process, the vehicle ride comfort and dynamic performance are influenced.…”