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US 2010/0076705 A1Published application
Method and system for determining a state of charge of a battery based on a transient response
AssigneeGM Global Technology Operations LLC
InventorsWEI LIU, MICHAEL J. GIELNIAK, JIAN LIN, BRIAN J. KOCH, DAMON R. FRISCH, JOSEPH M. LOGRASSO
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Abstract
Methods and systems for determining a state of charge of a battery exhibiting a transient response are provided. At least one property of the battery is measured. The state of charge of the battery is determined based on the at least one measured property and a transient response of the battery.
Claims20
A method for determining a state of charge of a battery exhibiting a transient response comprising:
- measuring at least one property of the battery;
- and
- determining the state of charge of the battery based on the at least one measured property and a transient response of the battery.
A method for determining a state of charge of a nanophosphate lithium ion battery comprising:
- measuring at least one property of the nanophosphate lithium ion battery;
- determining a location of a system pole of the nanophosphate lithium ion battery based on the at least one measured property and an ordinary differential equation;
- and
- determining the state of charge of the nanophosphate lithium ion battery based on the location of the system pole of the nanophosphate lithium ion battery.
1 more element
An automotive drive system comprising:
- an electric motor;
- a battery coupled to the electric motor;
- a sensor assembly coupled to the battery and configured to detect at least one property of the battery and generate a signal representative thereof;
- and
- a processor in operable communication with the sensor assembly and configured to:
- receive the signal from the sensor assembly;
- and
- determine the state of charge of the battery based on the measured property and a transient response of the battery.
5 more elements
Dependencies are inferred from the claim text.