Fuzzy controlled evaporative battery thermal management system for EV/HEV Online publication date: Tue, 21-Apr-2015
by Ataur Rahman; Farahana Nur; M.N.A. Hawlader; Rafia Afroz
International Journal of Electric and Hybrid Vehicles (IJEHV), Vol. 7, No. 1, 2015
Abstract: Electrical car battery voltage changes significantly to meet the power demands while the car is in acceleration and at the time of momentary peak load. The peak load periods generate powerful electrical currents, causing significant warming of the Li-ion cells owing to internal resistance. At a battery operating temperature of 40°C and above, the battery life span is reduced. The rationale of this study is to develop an innovative evaporative battery cooling thermal management system (EC-BThMS) to control the battery temperature in the range of 20-40°C to increase the battery life span. The EC-BThMS is able to control the battery temperature in the range of 20-40°C both in charging and discharging mode. The experimental EC-BThMS has been constructed and compared with air cooling battery thermal management systems (AC-BThMS) by using Proton Saga EV. Result shows that that the EV with EC-BThMS can save 17.69% more energy than with AC-BThM1 and 23% more than with AC-BThMS2.
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