Comparisons of Energy Management Methods for a Parallel Plug-In Hybrid Electric Vehicle between the Convex Optimization and Dynamic Programming

This paper proposes a comparison study of energy management methods for a parallel plug-in hybrid electric vehicle (PHEV). Based on detailed analysis of the vehicle driveline, quadratic convex functions are presented to describe the nonlinear relationship between engine fuel-rate and battery chargin...

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Main Authors: Renxin Xiao, Baoshuai Liu, Jiangwei Shen, Ningyuan Guo, Wensheng Yan, Zheng Chen
Format: Article
Language:English
Published: MDPI AG 2018-01-01
Series:Applied Sciences
Subjects:
Online Access:http://www.mdpi.com/2076-3417/8/2/218
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author Renxin Xiao
Baoshuai Liu
Jiangwei Shen
Ningyuan Guo
Wensheng Yan
Zheng Chen
author_facet Renxin Xiao
Baoshuai Liu
Jiangwei Shen
Ningyuan Guo
Wensheng Yan
Zheng Chen
author_sort Renxin Xiao
collection DOAJ
description This paper proposes a comparison study of energy management methods for a parallel plug-in hybrid electric vehicle (PHEV). Based on detailed analysis of the vehicle driveline, quadratic convex functions are presented to describe the nonlinear relationship between engine fuel-rate and battery charging power at different vehicle speed and driveline power demand. The engine-on power threshold is estimated by the simulated annealing (SA) algorithm, and the battery power command is achieved by convex optimization with target of improving fuel economy, compared with the dynamic programming (DP) based method and the charging depleting–charging sustaining (CD/CS) method. In addition, the proposed control methods are discussed at different initial battery state of charge (SOC) values to extend the application. Simulation results validate that the proposed strategy based on convex optimization can save the fuel consumption and reduce the computation burden obviously.
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spelling doaj.art-2923aaa16d0045aaab7d0475228a3d862022-12-22T03:10:25ZengMDPI AGApplied Sciences2076-34172018-01-018221810.3390/app8020218app8020218Comparisons of Energy Management Methods for a Parallel Plug-In Hybrid Electric Vehicle between the Convex Optimization and Dynamic ProgrammingRenxin Xiao0Baoshuai Liu1Jiangwei Shen2Ningyuan Guo3Wensheng Yan4Zheng Chen5Faculty of Transportation Engineering, Kunming University of Science and Technology, Kunming 650500, ChinaFaculty of Transportation Engineering, Kunming University of Science and Technology, Kunming 650500, ChinaFaculty of Transportation Engineering, Kunming University of Science and Technology, Kunming 650500, ChinaFaculty of Transportation Engineering, Kunming University of Science and Technology, Kunming 650500, ChinaFaculty of Transportation Engineering, Kunming University of Science and Technology, Kunming 650500, ChinaFaculty of Transportation Engineering, Kunming University of Science and Technology, Kunming 650500, ChinaThis paper proposes a comparison study of energy management methods for a parallel plug-in hybrid electric vehicle (PHEV). Based on detailed analysis of the vehicle driveline, quadratic convex functions are presented to describe the nonlinear relationship between engine fuel-rate and battery charging power at different vehicle speed and driveline power demand. The engine-on power threshold is estimated by the simulated annealing (SA) algorithm, and the battery power command is achieved by convex optimization with target of improving fuel economy, compared with the dynamic programming (DP) based method and the charging depleting–charging sustaining (CD/CS) method. In addition, the proposed control methods are discussed at different initial battery state of charge (SOC) values to extend the application. Simulation results validate that the proposed strategy based on convex optimization can save the fuel consumption and reduce the computation burden obviously.http://www.mdpi.com/2076-3417/8/2/218battery powerconvex optimizationdynamic programmingengine-on powerplug-in hybrid electric vehiclesimulated annealing
spellingShingle Renxin Xiao
Baoshuai Liu
Jiangwei Shen
Ningyuan Guo
Wensheng Yan
Zheng Chen
Comparisons of Energy Management Methods for a Parallel Plug-In Hybrid Electric Vehicle between the Convex Optimization and Dynamic Programming
Applied Sciences
battery power
convex optimization
dynamic programming
engine-on power
plug-in hybrid electric vehicle
simulated annealing
title Comparisons of Energy Management Methods for a Parallel Plug-In Hybrid Electric Vehicle between the Convex Optimization and Dynamic Programming
title_full Comparisons of Energy Management Methods for a Parallel Plug-In Hybrid Electric Vehicle between the Convex Optimization and Dynamic Programming
title_fullStr Comparisons of Energy Management Methods for a Parallel Plug-In Hybrid Electric Vehicle between the Convex Optimization and Dynamic Programming
title_full_unstemmed Comparisons of Energy Management Methods for a Parallel Plug-In Hybrid Electric Vehicle between the Convex Optimization and Dynamic Programming
title_short Comparisons of Energy Management Methods for a Parallel Plug-In Hybrid Electric Vehicle between the Convex Optimization and Dynamic Programming
title_sort comparisons of energy management methods for a parallel plug in hybrid electric vehicle between the convex optimization and dynamic programming
topic battery power
convex optimization
dynamic programming
engine-on power
plug-in hybrid electric vehicle
simulated annealing
url http://www.mdpi.com/2076-3417/8/2/218
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AT jiangweishen comparisonsofenergymanagementmethodsforaparallelpluginhybridelectricvehiclebetweentheconvexoptimizationanddynamicprogramming
AT ningyuanguo comparisonsofenergymanagementmethodsforaparallelpluginhybridelectricvehiclebetweentheconvexoptimizationanddynamicprogramming
AT wenshengyan comparisonsofenergymanagementmethodsforaparallelpluginhybridelectricvehiclebetweentheconvexoptimizationanddynamicprogramming
AT zhengchen comparisonsofenergymanagementmethodsforaparallelpluginhybridelectricvehiclebetweentheconvexoptimizationanddynamicprogramming