DocumentCode :
2653883
Title :
A predictive trip-based method for state of charge maintenance in series PHEVs to boost cold weather efficiency
Author :
Engvall, Luke ; Cook, Andrew ; Khaligh, Alireza
Author_Institution :
Univ. of New Mexico, Albuquerque, NM, USA
fYear :
2012
fDate :
18-20 June 2012
Firstpage :
1
Lastpage :
6
Abstract :
Plug-in hybrid electric vehicle operating efficiency decreases due to cold weather conditions. This reduced efficiency is the result of factors such as deteriorated lithium-ion battery performance at extreme temperatures and engine operating temperature at start-up. This paper presents a method that considers the particular case of a series configured Extended Range Electric Vehicle (EREV) operating in charge sustaining mode. A computer optimization strategy is proposed and implemented for determining an optimum engine on/off scheduling strategy for cold-weather operation, specifically for charging the traction battery in a series configured EREV operating in charge sustaining mode. Only engine efficiency is considered with respect to warm-up time and trip duration, while considering the advantages of a trip-based on/off scheduling strategy including GPS, traffic pattern monitoring and operator-anticipated trip duration.
Keywords :
hybrid electric vehicles; scheduling; GPS; boost cold weather efficiency; charge sustaining mode; computer optimization strategy; engine efficiency; lithium-ion battery performance; operator-anticipated trip duration; optimum engine on-off scheduling strategy; plug-in hybrid electric vehicle operating efficiency; predictive trip-based method; series PHEV; series configured EREV; series configured extended range electric vehicle; state of charge maintenance; traction battery; traffic pattern monitoring; trip-based on-off scheduling strategy; Batteries; Engines; Fuels; Ice; Mathematical model; System-on-a-chip; Vehicles; Extended-Range EV; PHEV; cold-weather efficiency; engine scheduling;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Transportation Electrification Conference and Expo (ITEC), 2012 IEEE
Conference_Location :
Dearborn, MI
Print_ISBN :
978-1-4673-1407-7
Electronic_ISBN :
978-1-4673-1406-0
Type :
conf
DOI :
10.1109/ITEC.2012.6243421
Filename :
6243421
Link To Document :
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