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Energies 2013, 6(1), 312-328; doi:10.3390/en6010312

Article

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

Jiankun Peng ¹ , Hongwen He ^1,*  and Nenglian Feng ²

¹ National Engineering Laboratory for Electric Vehicles, Beijing Institute of Technology, Beijing 100081, China ² College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100124, China

* Author to whom correspondence should be addressed.

Received: 16 October 2012; in revised form: 24 December 2012 / Accepted: 7 January 2013 / Published: 14 January 2013

Download PDF Full-Text [488 KB, uploaded 14 January 2013 14:49 CET]

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.

Keywords: electric vehicle; suspension; steering; braking; collaborative control

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