Acceleration performance optimization of novel power-split hybrid electric vehicle

作者：Wang, Chen; Guo, Ming Lin; Liu, Guo Zhi

来源：Journal of South China University of Technology(Natural Science Edition), 2015, 43(11): 96-104.

DOI：10.3969/j.issn.1000-565X.2015.11.014

• Acceleration performance
• Control strategies
• Multi-level decisions
• Optimization problems
• Performance indicators
• Power split hybrid electric vehicles
• Power-split hybrid vehicles
• Vehicle acceleration

Acceleration performance is one of important vehicle performance indicators. In order to solve the optimization problem of acceleration performance of hybrid electric vehicle, the full-load acceleration progress is converted into the multi-level decision-making process according to vehicle speeds, and a solution scheme based on dynamic programming is put forward. Then, a model for the novel power-split hybrid vehicle is constructed, and a globally-optimized control strategy is obtained on the Matlab platform. Meanwhile, a dual-motor torque figure is established, in which both the motor speed ratio and the battery power band are defined to analyze the control strategy of full-load acceleration. The vehicle test results of acceleration performance optimization show that one-hundred-kilometer acceleration time after the optimization decreases by 15.7%, which means that the proposed control strategy on the basis of dynamic programming can significantly improve the vehicle acceleration performance.

• 出版日期2015
• 单位上海交通大学; 同济大学