Battery analysis system
AssigneeCobasys, LLC
InventorJoel Ray Stanley
Life of this patent
Estimating the term…
Abstract
A battery analysis system includes a control module, a measurement module, and a pulse power module. The control module controls current to a battery to one of charge and discharge the battery. The measurement module determines N voltages across the battery at N times during a period when the control module controls the current and when the battery is at a predetermined temperature and a predetermined state of charge. N is an integer greater than 1. The pulse power module determines N resistances corresponding to the current and the N voltages across the battery and determines a pulse power value of the battery based on the N resistances. The pulse power value indicates a dynamic power of the battery to one of charge and discharge.
Claims23
A battery analysis system, comprising:
- a control module that controls current to a battery to one of charge and discharge the battery;
- a measurement module that determines N voltages across the battery at N times during a period when the control module controls the current and when the battery is at a predetermined temperature and a predetermined state of charge, wherein N is an integer greater than 1;
- and
- a pulse power module that determines N resistances corresponding to the current and the N voltages across the battery and that determines a pulse power value of the battery based on the N resistances,
- wherein the pulse power value indicates a dynamic power of the battery to one of charge and discharge.
A battery analysis system, comprising:
- a control module that controls voltage across a battery to one of charge and discharge the battery;
- a measurement module that determines N currents through the battery at N times during a period when the control module controls the voltage and when the battery is at a predetermined temperature and a predetermined state of charge, wherein N is an integer greater than 1;
- and
- a pulse power module that determines N resistances corresponding to the voltage and the N currents through the battery and that determines a pulse power value of the battery based on the N resistances,
- wherein the pulse power value indicates a dynamic power of the battery to one of charge and discharge.
A method comprising:
- setting a temperature of a battery to a predetermined temperature;
- discharging the battery when the battery is at the predetermined temperature and a predetermined state of charge;
- determining a plurality of resistances based on a voltage across the battery and current through the battery when the battery is discharging at the predetermined temperature;
- and
- determining a pulse power value of the battery based on the plurality of resistances, wherein the pulse power value indicates a dynamic power of the battery to one of charge and discharge.
Dependencies are inferred from the claim text.