Abstract: A temperature abnormality detection system includes: measurement devices; and a processor to determine temperature abnormality using a first temperature T1, a second temperature T2, and a third temperature T3. The processor determines occurrence of temperature abnormality when any one of following conditions is satisfied: (A) T1>A0 or T2>A0 or T3>A0; (B) T1>A1 and (T2?T1>A4 or T2?T1<0) and T2>A2 and T3>A3; (C) T1>A1 and T2?T1>A4 and T3>A3; (D) T1>A1 and T2?T1>A4 and (T3?T2>A5 or T3?T1>A6); and (E) T1>A1 and T2?T1<0 and (T3?T2>A7 or T3?T1>A8), where A1<A0, A2<A0, and A3<A0.

Abstract: A cell balancing device comprises: a capacity adjustment circuit including a plurality of pairs of series-connected switch elements and resistors connected in parallel with respective battery cells, and configured to adjust respective capacities of the battery cells; a processor; and a watchdog unit configured to monitor the processor, and reset the processor in the case where the processor is abnormal. The processor is configured to: transition to a sleep state when an ignition of a vehicle is turned off, and, in the sleep state, control the switch elements to adjust the capacities of the battery cells; and, when adjusting the capacities of the battery cells, limit the number of simultaneously discharged battery cells to a predetermined number so that a current flowing to the processor is less than a predetermined value.

Abstract: A temperature abnormality detection system includes: measurement devices; and a processor to determine temperature abnormality using a first temperature T1, a second temperature T2, and a third temperature T3. The processor determines occurrence of temperature abnormality when any one of following conditions is satisfied: (A) T1>A0 or T2>A0 or T3 >A0; (B) T1>A1 and (T2?T1>A4 or T2?T1<0) and T2>A2 and T3>A3; (C) T1>A1 and T2?T1>A4 and T3>A3; (D) T1>A1 and T2?T1>A4 and (T3?T2>A5 or T3?T1>A6); and (E) T1>A1 and T2?T1<0 and (T3?T2>A7 or T3?T1>A8), where A1<A0, A2<A0, and A3<A0.