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US 8,427,109 B2Granted
Battery state of charge reset
AssigneeChevron Technology Ventures LLC
InventorRobert J. Melichar
Life of this patent
Estimating the term…
Abstract
A battery control module is provided for use with a battery and includes a voltage measuring module that measures battery voltage, a current measuring module that measures battery current, and a state of charge (SOC) module. The SOC module communicates with the current and voltage measuring modules, determines a reset voltage based on the battery current, compares the battery voltage and the reset voltage, and resets a battery SOC based on an outcome of the comparison.
Claims15
A battery control module for use with a battery, comprising:
- a voltage measuring module that measures battery voltage;
- a current measuring module that measures battery current;
- and
- a state of charge (SOC) module configured to communicate with said current and voltage measuring modules, determine low and high reset voltages based on said battery current and respective low and high polarization voltage limits of said battery, wherein said high reset voltage is greater than said low reset voltage, compare said battery voltage and said low and high reset voltages, reset a battery SOC using said low reset voltage if said battery voltage is less than said low reset voltage, and reset said battery SOC using said high reset voltage if said battery voltage is greater than said high reset voltage.
1 more element
A method for resetting an estimated battery SOC, comprising:
- measuring a battery voltage;
- measuring a battery current;
- determining a low reset voltage and a high reset voltage based on said battery current and respective low and high polarization voltage limits of said battery;
- comparing said battery voltage with said low and high reset voltages;
- resetting said battery SOC using said low reset voltage if said battery voltage is less than said low reset voltage;
- and
- resetting said battery SOC using said high reset voltage if said battery voltage is greater than said high reset voltage.
4 more elements
Dependencies are inferred from the claim text.