Int. J. of Electric and Hybrid Vehicles   »   2017 Vol.9, No.2

 

 

Title: Design and performance analysis on a new electro-hydraulic hybrid transmission system

 

Authors: Yang Yang; Chang Luo; Pengxi Li

 

Addresses:
State Key Laboratory of Mechanical Transmission, ChongQing University, Shazheng Street, No. 174, Shapingba District, ChongQing, China
State Key Laboratory of Mechanical Transmission, ChongQing University, Shazheng Street, No. 174, Shapingba District, ChongQing, China
State Key Laboratory of Mechanical Transmission, ChongQing University, Shazheng Street, No. 174, Shapingba District, ChongQing, China

 

Abstract: To avoid the impact of large charge and discharge current on the cycle life of the battery in the process of driving or braking of pure electric vehicle, a new electro-hydraulic hybrid power transmission system was designed. Taking the ChangAn prototype as a reference, a method based on driving cyclic condition was used to match parameters and develop a novel control strategy. The model of this new electro-hydraulic system and the dynamic model of whole vehicle were established. The cosimulation results verified the effectiveness of the new hybrid power transmission system and the parameter matching method. The results show that the new electro-hydraulic hybrid power transmission system effectively avoids the impact of large charging and discharging current on the battery cycle life, and can improve the economy of vehicles to a significant extent while also displaying satisfactory power performance.

 

Keywords: automotive engineering; EV; electric vehicle; EHHPTS; electro-hydraulic hybrid power transmission system; combine simulation; parameter matching.

 

DOI: 10.1504/IJEHV.2017.10006172

 

Int. J. of Electric and Hybrid Vehicles, 2017 Vol.9, No.2, pp.134 - 150

 

Submission date: 05 Dec 2016
Date of acceptance: 23 Jan 2017
Available online: 11 Jul 2017

 

 

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