18080438. METHOD FOR DIAGNOSING VALVE FAILURE OF FUEL CELL SYSTEM simplified abstract (HYUNDAI MOTOR COMPANY)
METHOD FOR DIAGNOSING VALVE FAILURE OF FUEL CELL SYSTEM
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Inventor(s)
METHOD FOR DIAGNOSING VALVE FAILURE OF FUEL CELL SYSTEM - A simplified explanation of the abstract
This abstract first appeared for US patent application 18080438 titled 'METHOD FOR DIAGNOSING VALVE FAILURE OF FUEL CELL SYSTEM
Simplified Explanation
The patent application proposes a method for diagnosing valve failure in a fuel cell system. The method involves using a controller to determine a target pressure for diagnosing valve failure based on real-time atmospheric pressure data. The controller then controls the opening of a fuel supply valve to adjust the stack anode-side pressure to reach the target pressure. Once the target pressure is reached, the method involves opening an integrated discharge valve installed at a water trap and counting the time passed since the opening. Based on the time, stack anode-side pressure, and atmospheric pressure, the method determines whether the integrated discharge valve has failed.
- The method determines a target pressure for diagnosing valve failure based on real-time atmospheric pressure data.
- The fuel supply valve is controlled to adjust the stack anode-side pressure to reach the target pressure.
- The integrated discharge valve is opened when the target pressure is reached.
- The time passed since the opening of the integrated discharge valve is counted.
- Based on the time, stack anode-side pressure, and atmospheric pressure, the method determines whether the integrated discharge valve has failed.
Potential Applications
- Fuel cell systems: The method can be applied to diagnose valve failure in various types of fuel cell systems, ensuring their efficient and reliable operation.
Problems Solved
- Valve failure diagnosis: The method provides a reliable and efficient way to diagnose valve failure in fuel cell systems, allowing for timely maintenance and preventing potential system malfunctions.
Benefits
- Improved system reliability: By diagnosing valve failure, the method helps prevent system malfunctions and ensures the efficient operation of fuel cell systems.
- Timely maintenance: The method allows for timely maintenance and replacement of faulty valves, minimizing downtime and optimizing system performance.
Original Abstract Submitted
A method for diagnosing valve failure of a fuel cell system is proposed. The method comprises determining failure diagnosis target pressure from atmospheric pressure that is a real-time sensing value of an atmospheric sensor by means of a controller, controlling opening of a fuel supply valve installed in a hydrogen supply line such that stack anode-side pressure reaches the determined failure diagnosis target pressure by means of the controller, performing control for opening an integrated discharge valve installed at a water trap when the stack anode-side pressure reaches the failure diagnosis target pressure, counting a time passed after the opening, and determining whether the integrated discharge valve fails based on the time, the stack anode-side pressure, and the atmospheric pressure.
