Control apparatus for on-vehicle electricity storage device

摘要

A control apparatus for an on-vehicle electricity storage device, which enables an appropriate charging of the on-vehicle electricity storage device while preventing degradation of the on-vehicle electricity storage device. The counter value of a high voltage maintaining counter CVB 14 V and the timer value of a sustain time subtraction timer TACG 2 are increased over the period after time t 1 in which the inter-terminal voltage VB of the battery is maintained to be greater than the predetermined mode switching threshold voltage #VB 14 V. The counter value and the timer value decrease over the period from time t 2 to time t 3. At time t 3, the operation mode is switched from a non-charging mode to a charging mode.