|Table of Contents|

Dynamic coordinated control method of gear shifting without clutch operation for hybrid electric vehicle(PDF)

《交通运输工程学报》[ISSN:1671-1637/CN:61-1369/U]

Issue:
2014年05期
Page:
51-58
Research Field:
载运工具运用工程
Publishing date:

Info

Title:
Dynamic coordinated control method of gear shifting without clutch operation for hybrid electric vehicle
Author(s):
WANG Jun;  WANG Qing-nian;  WANG Peng-yu;  ZENG Xiao-hua
State Key Laboratory of Automotive Simulation and Control, Jilin University, Changchun 130025, Jilin, China
Keywords:
automotive engineering;  hybrid electric vehicle;  gear shifting;  operation without clutch;  rotate speed synchronization;  dynamic coordinated control
PACS:
U461.6
DOI:
-
Abstract:
In order to decrease gear shifting impact, shorten gear shifting time and improve vehicle accelerating performance, a dynamic coordinated control method of gear shifting without clutch operation for hybrid electric vehicle was proposed based on dual-motor hybrid electric powertrain. The driven motor of automatic transmission input shaft was controlled to fast realize rotate speed synchronization in gear shifting process without clutch operation so as to shorten gear shifting time. The driven motor of automatic transmission output shaft was controlled to prevent clutch from over wearing because of frequent separation and combination, and the continuous torque output of driving system was achieved by using motor torque on the output shaft of transmission to reduce the impact degree in gear shifting. Test result shows that vehicle driving force keeps stable in gear shifting because of the dynamic coordinated control method. Compared with the traditional gear shifting method, clutch impact degree reduces by about 60%, and vehicle accelerating performances improve by 5.53% and 5.94% under 0-50 and 0-60 km·h-1 accelerating conditions, respectively. 1 tab, 19 figs, 18 refs.

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Last Update: 2014-10-30