Journal of Jilin University(Engineering and Technology Edition) ›› 2018, Vol. 48 ›› Issue (5): 1455-1465.doi: 10.13229/j.cnki.jdxbgxb20170749

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Scavenging process for stable operation of linear range-extende

ZANG Peng-fei, WANG Zhe, SUN Chen-le, LIN Lian-lian   

  1. Clean Energy Automotive Engineering Center, Tongji University, Shanghai 201804, China
  • Received:2017-07-14 Online:2018-09-20 Published:2018-12-11

Abstract: Linear Range-Extender (LRE) is an innovative energy conversion device, which can convert fuel chemical energy into electrical energy. Due to simple structure, multi-fuel flexibility and high power density, LRE can be used as an auxiliary power unit for hybrid vehicles. Simulation structure coupling MATLAB/Simulink model and AVL_Fire model is established. For estimating scavenging process quality, scavenging efficiency, capture ratio and turbulent kinetic energy at the end of scavenging process are selected as the indexes. Under different piston strokes, working frequencies and intake pressures, scavenging process for stable operation of LRE is investigated. The accuracy of the simulation structure is validated by a prototype. Results show that the scavenging characteristics are sensitive to intake pressure. The scavenging quality can be improved by increasing the piston stroke and working frequency.

Key words: power and mechanical engineering, linear range-extender, stable operation, scavenging process, simulation structure

CLC Number: 

  • TK441
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