|Table of Contents|

Design of regenerative braking energy feedback system for ultracapacitor heavy-duty tractor(PDF)

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

Issue:
2013年02期
Page:
60-65
Research Field:
载运工具运用工程
Publishing date:

Info

Title:
Design of regenerative braking energy feedback system for ultracapacitor heavy-duty tractor
Author(s):
LIU Xi-bin12 MA Jian1 HAO Ru-ru3 SONG Qing-song23
1. School of Automobile, Chang'an University, Xi'an 710064, Shaanxi, China; 2. Shaanxi Automobile Group Co., Ltd., Xi'an 710043, Shaanxi, China; 3. School of Information Engineering, Chang'an University, Xi'an 710064, Shaanxi, China
Keywords:
automotive engineering electric vehicle heavy-duty tractor ultracapacitor regenerative brake energy recovery
PACS:
U469.72
DOI:
-
Abstract:
In view of regenerative braking energy feedback problem for electric vehicle(EV), based on the SX4186EV prototype of ultracapacitor pure-electric heavy-duty tractor of Shaanxi Automobile Group Co., Ltd., a hybrid braking system was proposed. the system was made up of two independent subsystems, including energy recovery braking subsystem and double-loop air braking subsystem. Based on braking intensity and real load, a rule-based braking force allocation strategy for the subsystems was put forward. A road experiment under the actual running condition at Shanghai Dock was carried out to test the braking energy recovery efficiency of the system. Experimental result shows that the braking energy recovery efficiencies under full-loaded running condition and unloaded running condition are 14.534% and 55.617% respectively, and the average is 35.076%. The efficiencies of electric vehicles powered with lead-acid and lithium batteries are usually about 10%, so the ultracapacitor heavy-duty tractor has higher braking energy recovery efficiency. 5 tabs, 6 figs, 18 refs.

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Last Update: 2013-05-20