Apparatus and method for power demand distribution in fuel cell vehicle
AssigneesHyundai Motor Company, Kia Motors Corporation
InventorsSung Gone Yoon, Seung Heon Lee
Life of this patent
Estimating the term…
Abstract
An apparatus for power demand distribution in a fuel cell vehicle includes: a battery management system calculating an allowable battery power that a battery can supply; a power demand distribution controller configured to derive a vehicle demand power including a drive motor demand power required by the drive motor, and determine a value corresponding to a vehicle demand power minus the allowable battery power being scaled down or the drive motor demand power, as a fuel cell demand output; and a fuel cell controller configured to drive the air compressor feeding the air to the fuel cell to enable a fuel cell to generate the fuel cell demand output calculated by the power demand distribution controller.
Claims15
An apparatus for power demand distribution in a fuel cell vehicle having a fuel cell, a battery, and a drive motor operating by power supplied from the fuel cell and the battery, the apparatus comprising:
- a battery management system calculating an allowable battery power that the battery can supply;
- a power demand distribution controller configured to derive a vehicle demand power including a drive motor demand power required by the drive motor, and determine a value obtained by subtracting the allowable battery power being scaled down from the vehicle demand power or a value corresponding to the drive motor demand power, as a fuel cell demand output;
- and
- a fuel cell controller configured to drive an air compressor feeding air to the fuel cell to enable the fuel cell to generate the fuel cell demand output calculated by the power demand distribution controller.
A method of power demand distribution in a fuel cell vehicle having a fuel cell, a battery, and a drive motor operating by power supplied from the fuel cell and the battery, the method comprising:
- deriving drive motor demand power required by the drive motor on the basis of a vehicle speed and an opening ratio of a vehicle accelerator;
- receiving allowable battery power that the battery can supply;
- confirming an operating status of an air compressor feeding air to the fuel cell;
- and
- determining, on the basis of the operating status of the air compressor, a value obtained by subtracting the allowable battery power being scaled down from the vehicle demand power including the drive motor demand power or a value corresponding to the drive motor demand power, as a fuel cell demand output.
Dependencies are inferred from the claim text.