Optimal Control Strategy Design Based on Dynamic Programming for a Dual-Motor Coupling-Propulsion System

Shuo Zhang; Chengning Zhang; Guangwei Han; Qinghui Wang

doi:10.1155/2014/958239

Optimal Control Strategy Design Based on Dynamic Programming for a Dual-Motor Coupling-Propulsion System

Shuo Zhang^*, Chengning Zhang, Guangwei Han, Qinghui Wang

^*Corresponding author for this work

School of Mechanical Engineering

Beijing Institute of Technology

Research output: Contribution to journal › Article › peer-review

42 Citations (Scopus)

Abstract

A dual-motor coupling-propulsion electric bus (DMCPEB) is modeled, and its optimal control strategy is studied in this paper. The necessary dynamic features of energy loss for subsystems is modeled. Dynamic programming (DP) technique is applied to find the optimal control strategy including upshift threshold, downshift threshold, and power split ratio between the main motor and auxiliary motor. Improved control rules are extracted from the DP-based control solution, forming near-optimal control strategies. Simulation results demonstrate that a significant improvement in reducing energy loss due to the dual-motor coupling-propulsion system (DMCPS) running is realized without increasing the frequency of the mode switch.

Original language	English
Article number	958239
Journal	The Scientific World Journal
Volume	2014
DOIs	https://doi.org/10.1155/2014/958239
Publication status	Published - 2014

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10.1155/2014/958239

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abstract = "A dual-motor coupling-propulsion electric bus (DMCPEB) is modeled, and its optimal control strategy is studied in this paper. The necessary dynamic features of energy loss for subsystems is modeled. Dynamic programming (DP) technique is applied to find the optimal control strategy including upshift threshold, downshift threshold, and power split ratio between the main motor and auxiliary motor. Improved control rules are extracted from the DP-based control solution, forming near-optimal control strategies. Simulation results demonstrate that a significant improvement in reducing energy loss due to the dual-motor coupling-propulsion system (DMCPS) running is realized without increasing the frequency of the mode switch.",

author = "Shuo Zhang and Chengning Zhang and Guangwei Han and Qinghui Wang",

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AU - Wang, Qinghui

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Optimal Control Strategy Design Based on Dynamic Programming for a Dual-Motor Coupling-Propulsion System

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