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Operation control strategy of series-parallel hydraulic hybrid vehicle

  • Lijun Zhao*
  • , Zhuhong Ge
  • , Nianning Luo
  • , Xinhui Liu
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

A series-parallel hydraulic hybrid system applied to public buses is put forward, and parameters of key components are analyzed and determined. Energy management strategy based on logic threshold is designed which is aimed at efficient operation of the overall system considering the operational characteristic of the components and taking the curves of engine, hydraulic pump/motor and hydraulic pump as the main design basis; regenerative control strategy which makes regenerative brake system and frictional brake system work harmoniously is designed to raise recovery rate of regenerative brake energy. System dynamic modeling and simulation results show that the energy control strategy designed here is able to adapt system to changes of working condition and switch the operating mode reasonably. The regenerative braking control strategy is effective in raising the utilization of energy and improving fuel economy.

Original languageEnglish
Pages (from-to)97-102
Number of pages6
JournalHigh Technology Letters
Volume20
Issue number1
DOIs
StatePublished - Mar 2014
Externally publishedYes

Keywords

  • Hydraulic hybrid vehicles
  • Operation control strategy
  • Regenerative brake
  • Series-parallel configuration
  • Vehicles for public transport

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