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A novel engine and battery coupled thermal management strategy for connected HEVs based on switched model predictive control under low temperature
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- Li, Kai (author)
- Jilin Univ, Peoples R China
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- Chen, Hong (author)
- Jilin Univ, Peoples R China; Tongji Univ, Peoples R China
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- Hou, Shengyan (author)
- Jilin Univ, Peoples R China
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- PERGAMON-ELSEVIER SCIENCE LTD, 2023
- 2023
- English.
- In: Energy. - : PERGAMON-ELSEVIER SCIENCE LTD. - 0360-5442 .- 1873-6785. ; 278
- Journal article (peer-reviewed)
Abstract
Subject headings
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- Under a low-temperature environment, electric vehicles face serious environmental adaptability problems, and efficient vehicle thermal management strategies are urgently needed. This paper presents a novel engine- battery coupled thermal management strategy for connected hybrid electric vehicles (HEVs). An improved system structure for an engine-battery coupled thermal management system (engine-battery CTMS) is designed to avoid unnecessary heat loss. The control requirements of the engine-battery CTMS include minimum engine fuel consumption, minimum power battery aging damage and minimum system energy consumption, which constitutes a multi-objective optimal control problem in a finite time domain. Based on model predictive control (MPC) theory, a switched nonlinear MPC (NMPC) control strategy is proposed to solve the optimal control problem of the complex coupled multi-input multi-output system. To verify the effectiveness of the proposed strategy, three comparative experiments of the centralized NMPC-based and rule-based methods combined with the improved system structure and the unimproved system structure are designed. The results of the cosimulation experiment between MATLAB/Simulink and AMEsim under various driving cycles and different ambient temperatures show that the improved structure and switched control strategy confer great advantages in reducing the controller computation burden, engine fuel consumption, and power battery aging damage.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Annan elektroteknik och elektronik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Other Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)
Keyword
- Low temperature environment; Hybrid electric vehicles (HEVs); Engine-battery coupled thermal management; system (engine-battery CTMS); Switched nonlinear MPC; Multi-objective optimal control
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- ref (subject category)
- art (subject category)
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- By the author/editor
- Li, Kai
- Chen, Hong
- Hou, Shengyan
- Eriksson, Lars
- Gao, Jinwu
- About the subject
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- ENGINEERING AND TECHNOLOGY
- ENGINEERING AND ...
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- Energy
- By the university
- Linköping University
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