Details

Autor(en) / Beteiligte

• Guo, Hongqiang
• Sun, Qun
• Wang, Chong
• Wang, Qinpu
• Lu, Silong

Titel

A systematic design and optimization method of transmission system and power management for a plug-in hybrid electric vehicle

Ist Teil von

• Energy (Oxford), 2018-04, Vol.148, p.1006-1017

Ort / Verlag

Oxford: Elsevier Ltd

Erscheinungsjahr

2018

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• The transmission system together with power management will simultaneously affect the fuel economy of the plug-in hybrid electric vehicle (PHEV) with automated mechanical transmission (AMT). This paper strives to make three contributions to realize systematic design and optimization of the transmission and power management. Firstly, a design of experiment method is proposed to redesign the current transmission system of the PHEV with Optimal Latin Hypercube Design algorithm. Then, a co-optimization method is proposed to insight into the preferable speed ratios of the redesigned transmission system with multi-island genetic and dynamic programming algorithms. Finally, a Pontryagin’s Minimum Principle-based self-identification controller is proposed to realize adaptive power management control, based on a significant finding that the constant solution of the co-state from off-line iteration optimization can be approximately identified by the mean value of the co-state with time-moving in the self-identification controller. Results demonstrate that the current 6-speed ratio AMT can be reduced to 4, the fuel economy of the redesigned transmission system can be improved by 2.9% compared to the current transmission system and the self-identification controller can further improve the fuel economy of the PHEV compared to the conventional PI controller. •A systematic method of design, optimization and control for a PHEV is proposed.•The AMT with 6-speed ratio can be redesigned as 4-speed ratio.•The fuel economy of the PHEV can be improved with the best found speed ratios.•The controller can approximately identify the constant solution of the co-state.