Vehicle battery monitoring assembly and monitoring method
AssigneeFord Global Technologies, LLC
InventorsHanyang B. Chen, Michael J. Irby
Life of this patent
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Abstract
A monitoring method includes, among other things, within an electrified vehicle, providing an accessory battery that is configured to power an electrical bus, and a traction battery that is configured to power the electrical bus. The method further includes loading the electrical bus with electrical loads of the electrified vehicle when an amount of power provided to the electrical bus by the traction battery is reduced. After the loading, the method compares an electrical parameter of the accessory battery to a threshold value to assess a condition of the accessory battery.
Claims19
A monitoring method, comprising:
- within an electrified vehicle, providing an accessory battery that is configured to power an electrical bus, and a traction battery that is configured to power the electrical bus;
- when an amount of power provided to the electrical bus by the traction battery is reduced, loading the electrical bus with electrical loads of the electrified vehicle;
- and
- after the loading, comparing an electrical parameter of the accessory battery to a threshold value to assess a condition of the accessory battery.
A monitoring assembly, comprising:
- an accessory battery of a vehicle, the accessory battery configured to power an electrical bus;
- at least one sensor operable to detect an electrical parameter relating to the accessory battery;
- a converter that receives electrical power from a traction battery at an input voltage and provides electrical power to the electrical bus at an output voltage, the output voltage different than the input voltage;
- and
- a controller that, commands the converter to provide an output voltage that is reduced, and compares an electrical parameter of the accessory battery to a threshold value to assess a condition of the accessory battery when the electrical bus is electrically loaded.
Dependencies are inferred from the claim text.