Novel Field Test Equipment for Lithium-Ion Batteries in Hybrid Electrical Vehicle Applications
AbstractLifetime testing of batteries for hybrid-electrical vehicles (HEV) is usually performed in the lab, either at the cell, module or battery pack level. Complementary field tests of battery packs in vehicles are also often performed. There are, however, difficulties related to field testing of battery-packs. Some examples are cost issues and the complexity of continuously collecting battery performance data, such as capacity fade and impedance increase. In this paper, a novel field test equipment designed primarily for lithium-ion battery cell testing is presented. This equipment is intended to be used on conventional vehicles, not hybrid vehicles, as a cheaper and faster field testing method for batteries, compared to full scale HEV testing. The equipment emulates an HEV environment for the tested battery cell by using real time vehicle sensor information and the existing starter battery as load and source. In addition to the emulated battery cycling, periodical capacity and pulse testing capability are implemented as well. This paper begins with presenting some background information about hybrid electrical vehicles and describing the limitations with today’s HEV battery testing. Furthermore, the functionality of the test equipment is described in detail and, finally, results from verification of the equipment are presented and discussed.
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Svens, P.; Lindstrom, J.; Gelin, O.; Behm, M.; Lindbergh, G. Novel Field Test Equipment for Lithium-Ion Batteries in Hybrid Electrical Vehicle Applications. Energies 2011, 4, 741-757.
Svens P, Lindstrom J, Gelin O, Behm M, Lindbergh G. Novel Field Test Equipment for Lithium-Ion Batteries in Hybrid Electrical Vehicle Applications. Energies. 2011; 4(5):741-757.Chicago/Turabian Style
Svens, Pontus; Lindstrom, Johan; Gelin, Olle; Behm, Marten; Lindbergh, Goran. 2011. "Novel Field Test Equipment for Lithium-Ion Batteries in Hybrid Electrical Vehicle Applications." Energies 4, no. 5: 741-757.