Storage capacity management system

摘要

A storage capacity management system for a battery provided in a vehicle having an electric motor as a drive source includes a deteriorated state estimating unit that estimates a deteriorated state of the battery, a zone setting unit that sets a storage capacity where the battery can be used into a plurality of zones in accordance with a deteriorated state of the battery, a charged state calculating unit that calculates a charged state of the battery, a zone determination unit that determines to which zone of the plurality of zones set by the zone setting unit the charged state of the battery belongs, and a control instructing unit that instructs to execute a control associated with the charge or discharge of the battery in accordance with the zone determined by the zone determination unit.

主权项

1. A storage capacity management system for a battery provided in a vehicle having an electric motor as a drive source, comprising:
a deteriorated state estimating unit that estimates a deteriorated state of the battery based on an internal resistance of the battery; a zone setting unit that sets a storage capacity where the battery is used into a plurality of zones in accordance with a deteriorated state of the battery; a charged state calculating unit that calculates a charged state of the battery; a zone determination unit that determines to which zone of the plurality of zones set by the zone setting unit the charged state of the battery belongs; and a control instructing unit that instructs to execute a control associated with the charge or discharge of the battery in accordance with the zone determined by the zone determination unit, wherein a range of a storage capacity of at least one predetermined zone of the plurality of zones set by the zone setting unit stays constant throughout the full range of the deteriorated state of the battery based on the internal resistance of the battery, whereas ranges of storage capacities of zones other than the predetermined zone change according to the deteriorated state of the battery.