DocumentCode :
1884282
Title :
The Dynamic Control of Hybrid Energy Storage Sysem for Mild HEV
Author :
Lee, Baek-Haeng ; Shin, Dong-Hyun ; Song, Hyun-Sik ; Jeong, Jin-Beom ; Hee-Jun Kim ; Kim, Byeong-Woo
Author_Institution :
Dept. of Electron., Electr., Control & Instrum. Eng., Hanyang Univ., Seoul
fYear :
2007
fDate :
9-12 Sept. 2007
Firstpage :
796
Lastpage :
801
Abstract :
To improve the cycle life and efficiency of an energy storage system for HEV, a dynamic control system consisted of a switch between battery and ultracapacitor module and a controller is proposed, which is appropriate for mild hybrid vehicle with 42 V power net. The switch can be controlled based on the status of the battery and the ultracapacitor module, and a control algorithm that could largely decrease the number of high charging current peak is also implemented. Therefore the cycle life of the battery can be improved such that it is suitable for a mild hybrid vehicle with frequent engine start-stop and regenerative-braking. Also, by maximizing the use of the ultracapacitor, the system efficiency during high current charging and discharging operation is improved. Finally, this system has the effects that improves the efficiency of energy storage system and reduces the fuel consumption of a vehicle. To verify the validity of the proposed system, this paper presented cycles test results of different energy storage systems: a simple VRLA battery, hybrid energy pack (HEP, a VRLA battery in parallel with Ultracapacitor) and a HEP with a switch that controlled by energy management system (EMS). From the experimental result, it was proved the effectiveness of the algorithm.
Keywords :
energy management systems; hybrid electric vehicles; lead acid batteries; regenerative braking; supercapacitors; VRLA battery; battery module; cycle life; dynamic control; energy management system; engine start-stop; hybrid energy pack; hybrid energy storage system; mild HEV; regenerative-braking; ultracapacitor module; Battery powered vehicles; Control systems; Energy storage; Engines; Fuels; Hybrid electric vehicles; Supercapacitors; Switches; System testing; Vehicle dynamics;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Vehicle Power and Propulsion Conference, 2007. VPPC 2007. IEEE
Conference_Location :
Arlington, TX
Print_ISBN :
978-0-7803-9760-6
Electronic_ISBN :
978-0-7803-9761-3
Type :
conf
DOI :
10.1109/VPPC.2007.4544233
Filename :
4544233
Link To Document :
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