Estimating unit for gas inside secondary battery and vehicle
AssigneeSubaru Corporation
InventorsTakahiro Ueki, Kotaro Nakamura
Life of this patent
Estimating the term…
Abstract
A gas estimating unit configured to estimate an amount and a composition of a gas generated inside a secondary battery includes at least one processor and at least one memory electrically coupled to each other. The at least one processor is configured to detect a presence or absence of a gas generating period. The gas generating period is a period for which the gas is generated inside the secondary battery while the secondary battery is in one or both of an overcharging state in which the secondary battery exceeds a voltage limit and a high-temperature state in which the secondary battery exceeds a temperature limit.
Claims12
A gas estimating unit configured to estimate an amount and a composition of a gas generated inside a secondary battery, the secondary battery being a rechargeable and dischargeable battery, the gas estimating unit comprising:
- at least one processor;
- and
- at least one memory electrically coupled to the at least one processor,
- the at least one processor configured to:
- detect a presence or absence of a gas generating period, the gas generating period being a period for which the gas is generated inside the secondary battery while the secondary battery is in one or both of an overcharging state and a high-temperature state, the overcharging state being a state in which the secondary battery exceeds a voltage limit so as to be unable to be used properly, the high-temperature state being a state in which the secondary battery exceeds a temperature limit so as to be unable to be used properly;
- and
- estimate the amount and the composition of the gas, based on an integration result of voltage values of the secondary battery during the gas generating period.
Dependencies are inferred from the claim text.