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US 2026/0074543 A1Published application
Surface state of charge based traction battery power capability
AssigneeFord Global Technologies, LLC
InventorsXiaohong Nina DUAN, Yonghua LI, Donnell Matthew WASHINGTON
Life of this patent
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Abstract
A traction battery is charged or discharged according to power limits that are based on generated state of charge values for the traction battery such that, for a 1C discharge rate of the traction battery at a temperature of 0° C., measured terminal voltage values of the traction battery continue to track terminal voltage values that are a function of the generated state of charge values as current throughput of the traction battery increases.
Claims17
A vehicle comprising:
- a traction battery;
- and
- one or more controllers programmed to charge or discharge the traction battery according to power limits that are based on generated state of charge values for the traction battery such that, for a 1C discharge rate of the traction battery at a temperature of 0° C., measured terminal voltage values of the traction battery continue to track terminal voltage values that are a function of the generated state of charge values as current throughput of the traction battery increases.
A vehicle power system comprising:
- one or more controllers programmed to discharge a traction battery according to output representing a power capability of the traction battery that is based on parameters indicative of a change in surface iron amount of one or more cells of the traction battery.
A method comprising:
- charging and discharging a traction battery of a vehicle according to power limits that are based on surface states of charge associated with the traction battery.
Dependencies are inferred from the claim text.