Method for resetting a state of charge of a battery of a...

Details Method for resetting a state of charge of a battery of a... Method for resetting a state of charge of a battery of a...

2005-01-11

2005-01-11

Sherry, Micheal (Department: 2838)

Electricity: battery or capacitor charging or discharging

Battery or cell discharging

With charging

C320S136000

Reexamination Certificate

active

06841972

ABSTRACT:
A method for resetting a state of charge of a battery for a hybrid electric vehicle comprises: determining whether a discharge current of the battery is greater than a predetermined discharge current; determining whether a minimum voltage module has changed, if the discharge current of the battery is greater than the predetermined discharge current; determining whether a theoretical discharge voltage is greater than a voltage of the minimum voltage module, if the minimum voltage module has changed; determining whether the theoretical discharge voltage remains greater than the voltage of the minimum voltage module for a predetermined period of time, if the theoretical discharge voltage is greater than the voltage of the minimum voltage module; and setting a state of charge of the battery as a very low state, if the theoretical discharge voltage remains greater than the voltage of the minimum voltage module for the predetermined period of time.

REFERENCES:
patent: 5115182 (1992-05-01), Ehmke et al.
patent: 5539318 (1996-07-01), Sasaki

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