Energy management and control strategy design of a generation set in plug-in hybrid electric vehicles

C. H. Wu, Y. H. Hung, P. Y. Chen, S. M. Lo

Research output: Contribution to conferencePaper

2 Citations (Scopus)

Abstract

This paper studies the optimal energy management approach and the control strategy of an engine/generator system, named "GENSET", for the purpose of extending the traveling mileage of a plug-in hybrid electric vehicle (PHEV). To derive the optimal energy management, two approaches are employed in this study. They are: (1) energy minimization control and (2)SOC-based control. For the first method, a theoretical-based analysis that searches the most efficient operation points exhaustively, called "Equivalent Consumption Minimization Strategy (ECMS)", is utilized. By giving BSFC/fuel consumption maps of the engine, as well as the efficiency contour of the generator, the optimal commands of torque and rotational speed of the GENSET can be calculated. Multi-dimensional tables are thereby constructed for the best power distribution between the GENSET and the energy storage system - A lithium battery package. The second method is a SOC-based control, which depends on two parameters: Expected charging time and current SOC status. The derived optimal results at different needed currents will be applied to the SOC-based control. These two energy management methods will be integrated into the operation modes of the control strategy for a vehicle control unit (VCU). The control software with a PHEV simulator is established on the Matlab/Simulink/Stateflow platform to verify the designed energy management and control strategy.

Original languageEnglish
Publication statusPublished - 2010 Jan 1
Event25th World Battery, Hybrid and Fuel Cell Electric Vehicle Symposium and Exhibition: Sustainable Mobility Revolution, EVS 2010 - Shenzhen, China
Duration: 2010 Nov 52010 Nov 9

Other

Other25th World Battery, Hybrid and Fuel Cell Electric Vehicle Symposium and Exhibition: Sustainable Mobility Revolution, EVS 2010
CountryChina
CityShenzhen
Period10/11/510/11/9

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Keywords

  • Energy management
  • Generation
  • GENSET
  • PHEV
  • SOC

ASJC Scopus subject areas

  • Computer Networks and Communications

Cite this

Wu, C. H., Hung, Y. H., Chen, P. Y., & Lo, S. M. (2010). Energy management and control strategy design of a generation set in plug-in hybrid electric vehicles. Paper presented at 25th World Battery, Hybrid and Fuel Cell Electric Vehicle Symposium and Exhibition: Sustainable Mobility Revolution, EVS 2010, Shenzhen, China.