Control and management of upfitter and vehicle loads
AssigneeFord Global Technologies, LLC
InventorsStuart C. Salter, Jeffrey Robert Seaman, David Celinske, Brendan F. Diamond, Christopher Ballard, Todd Ansbacher
Life of this patent
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Abstract
While a state of charge of a supplemental battery, that provides power to an electrical bus via a first DC/DC converter, is greater than a predefined threshold and responsive to a magnitude of current associated with loads on the electrical bus exceeding a predefined value, a controller reduces a setpoint of the first DC/DC converter to equal that of a second DC/DC converter, that transfers power between the electrical bus and a traction battery, such that the loads are powered by the supplemental and traction batteries.
Claims14
A power system for a vehicle comprising:
- an electrical bus;
- a first DC/DC converter configured to transfer power between the electrical bus and a traction battery;
- a second DC/DC converter configured to transfer power between a supplemental battery and the electrical bus;
- and
- one or more controllers programmed to, responsive to a state of charge of the supplemental battery falling below a predefined threshold, reduce a setpoint of the second DC/DC converter to less than that of the first DC/DC converter such that loads on the electrical bus are powered by the traction battery and not the supplemental battery.
A method for a vehicle comprising:
- while a state of charge of a supplemental battery, that is configured to provide power to an electrical bus via a first DC/DC converter, is greater than a predefined threshold and responsive to a magnitude of current associated with loads on the electrical bus exceeding a predefined value, reducing a setpoint of the first DC/DC converter to equal that of a second DC/DC converter, that is configured to transfer power between the electrical bus and a traction battery, such that the loads are powered by the supplemental and traction batteries.
Dependencies are inferred from the claim text.