Method for controlling a voltage source for charging a battery of a motor vehicle
AssigneeFord Global Technologies, LLC
InventorsMark Eifert, Eckhard Karden
Life of this patent
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Abstract
A method for controlling a voltage source is used to charge a battery of a motor vehicle, wherein the desired voltage value of the voltage source is selected and controlled. The method changes between at least two charging modes at planned time intervals, wherein a first charging mode applies a different desired voltage value for charging the battery than a second charging mode. In particular, the two charging modes are a process of equalization charging the battery and a process of float charging the battery.
Claims9
A vehicle battery charge method comprising:
- by a controller, switching back and forth at planned time intervals between an equalization charging mode in which a predefined desired voltage at connection terminals of a battery is achieved to charge cells of the battery and a float charging mode in which current of the battery is reduced to zero and state of charge of the battery is maintained around a fixed value via controlling a voltage.
A method for controlling a voltage source of a vehicle comprising:
- by a controller, switching back and forth at planned time intervals between an equalization charging mode in which a desired voltage is applied to charge cells of a battery and a float charging mode in which battery current is minimized and battery state of charge is maintained around a fixed value via controlling a voltage at connection terminals to a temperature-dependent target value.
A vehicle comprising:
- a battery;
- and
- a controller programmed to, at planned time intervals switch back and forth between operating to cause a predefined desired voltage to be present at connection terminals of the battery to charge cells of the battery and operating to reduce current of the battery to zero and maintain a state of charge of the battery around a fixed value via controlling a voltage at the connection terminals.
Dependencies are inferred from the claim text.