Apparatus for controlling operation of fuel cell system and method therefor
AssigneesHyundai Motor Company, Kia Corporation
InventorsJae Won Jung, Jae Ho Han, Jae Ok Ha, Dae Jong Kim, Sang Wook Han
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Abstract
The present disclosure relates to an apparatus for controlling an operation of a fuel cell system and a method therefor. The present disclosure may include a voltage sensor that measures an output voltage of a fuel cell stack, an air compressor that supplies air to a cathode of the fuel cell stack, a valve driver that adjusts an opening degree of an Airflow Control Valve (ACV), and a controller that, in an idle stop state, drives the air compressor at a lowest level and controls the opening degree of the ACV such that the output voltage of the fuel cell stack maintains a reference range.
Claims9
An apparatus for controlling an operation of a fuel cell system, the apparatus comprising:
- a voltage sensor configured to measure an output voltage of a fuel cell stack;
- an air compressor configured to supply air to a cathode of the fuel cell stack;
- a valve driver configured to adjust an opening degree of an Airflow Control Valve (ACV);
- and
- a controller configured, in an idle stop state, to:
- drive the air compressor at a lowest level;
- and
- control the opening degree of the ACV so that the output voltage of the fuel cell stack maintains a reference range;
- wherein the valve driver is further configured to adjust opening or closing of a Fuel Discharge Valve (FDV);
- and
- wherein the controller is further configured, in the idle stop state, to control the valve driver to open the FDV when a concentration of hydrogen on an anode side of the fuel cell stack is less than or equal to a reference value.
A method of controlling an operation of a fuel cell system, the method comprising:
- driving, by a controller, an air compressor configured to supply air to a cathode of a fuel cell stack at a lowest level in an idle stop state;
- controlling, by the controller, an opening degree of an Airflow Control Valve (ACV) such that an output voltage of the fuel cell stack maintains a reference range;
- and
- during the idle stop state, opening, by the controller, a Fuel Discharge Valve (FDV) when a concentration of hydrogen on an anode side of the fuel cell stack is less than or equal to a reference value.
Dependencies are inferred from the claim text.