Air supply system for fuel cells and method for controlling the same
AssigneesHyundai Motor Company, Kia Corporation
InventorsJae Ok Ha, Dae Jong Kim, Jae Won Jung
Life of this patent
Estimating the term…
Abstract
An air supply system for fuel cells includes a fuel cell, an air supply line connected to a cathode of the fuel cells to supply external air to the cathode of the fuel cell, an air pressure sensor provided on the air supply line, and configured to measure a pressure in the air supply line, a determiner configured to determine whether correction for the air pressure is necessary, and a controller connected to the determiner and configured to perform the correction for the air pressure sensor by performing voltage control of the fuel cell, upon determining that the correction for the air pressure sensor is necessary.
Claims19
An air supply system for fuel cells, the air supply system comprising:
- a fuel cell;
- an air supply line connected to a cathode of the fuel cells to supply external air to the cathode of the fuel cells;
- an air pressure sensor provided on the air supply line, and configured to measure a pressure in the air supply line;
- a determiner configured to determine whether correction for the air pressure sensor is necessary;
- and
- a controller connected to the determiner and configured to perform the correction for the air pressure sensor by performing voltage control of the fuel cells, when the correction for the air pressure sensor is necessary,
- wherein the determiner is configured to determine whether the correction for the air pressure sensor is necessary in an idle state of the fuel cells after stoppage of power generation by the fuel cells.
An air supply system for fuel cells, the air supply system comprising:
- a fuel cell;
- an air supply line connected to a cathode of the fuel cells to supply external air to the cathode of the fuel cells;
- an air pressure sensor provided on the air supply line, and configured to measure a pressure in the air supply line;
- a determiner configured to determine whether correction for the air pressure sensor is necessary;
- and
- a controller connected to the determiner and configured to perform the correction for the air pressure sensor by performing voltage control of the fuel cells, when the correction for the air pressure sensor is necessary,
- wherein the controller is configured to perform voltage lowering control of the fuel cells in an idle state, when the correction for the air pressure sensor is necessary, and to perform the correction for the air pressure sensor, when lowering of a voltage of the fuel cells has been completed.
A method for controlling an air supply system for fuel cells, the method comprising:
- determining, by a determiner, whether correction for an air pressure sensor provided on an air supply line of the air supply system and configured to measure a pressure in the air supply line is necessary;
- and
- performing, by a controller connected to the determiner, the correction for the air pressure sensor by performing voltage control of the fuel cells, when the correction for the air pressure sensor is necessary,
- wherein the determiner is configured to determine whether the correction for the air pressure sensor is necessary in an idle state of the fuel cells after stoppage of power generation by the fuel cells.
Dependencies are inferred from the claim text.