Battery control apparatus for hybrid powered vehicle

Details Battery control apparatus for hybrid powered vehicle Battery control apparatus for hybrid powered vehicle

H - Electricity

02

J

H02J 7/00 (2006.01) B60K 1/04 (2006.01) B60L 11/02 (2006.01) B60L 11/18 (2006.01) B60K 6/04 (2006.01)

Patent

CA 2274476

A voltage detector (12) detects the voltage levels of the battery blocks of the battery set (10). A presence of an overdischarged cell is detected when a voltage difference between each of the battery blocks reaches or exceeds a predetermined value (for example, 1V). At this point, a battery ECU (14) sets the SOC value of the battery set (10) at the lower control limit value (for example, 20%). This triggers an HV ECU (16) to control the load (18) such that charging is effectuated in the battery set (10). If further discharge occurs, the battery set (10) is disconnected from the load (18) by a relay (20).

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