17963610. DEVICE AND METHOD FOR CONTROLLING FUEL CELL SYSTEM simplified abstract (Hyundai Motor Company)
DEVICE AND METHOD FOR CONTROLLING FUEL CELL SYSTEM
Organization Name
Inventor(s)
Seong Cheol Jeong of Suwon (KR)
DEVICE AND METHOD FOR CONTROLLING FUEL CELL SYSTEM - A simplified explanation of the abstract
This abstract first appeared for US patent application 17963610 titled 'DEVICE AND METHOD FOR CONTROLLING FUEL CELL SYSTEM
Simplified Explanation
The patent application describes a device and method for controlling a fuel cell system in a vehicle. The system aims to prevent excessive limitation of the output current of the fuel cell stack, which can cause the vehicle to rattle. It also monitors the performance of the stack and prevents degradation as the output current is suppressed.
- The device and method determine a minimum motoring current limit value for the motor that drives the fuel cell vehicle.
- This is achieved by varying the output current limit threshold value of the fuel cell stack.
- The available output current of the stack is determined to adjust the output current limit threshold value.
- The available voltage lower limit threshold value of the stack is also varied by determining the available operating voltage of the stack.
- By preventing excessive limitation of the output current, the system prevents the fuel cell vehicle from rattling.
- The pressures of the anode and cathode of the stack are controlled to monitor the performance of the stack.
- As the output current limitation is suppressed, the system prevents degradation of the stack's performance.
Potential Applications
- This technology can be applied in fuel cell vehicles to improve their performance and prevent rattling caused by excessive output current limitation.
- It can be used in various types of fuel cell systems, including those used in cars, buses, and other vehicles.
Problems Solved
- Excessive limitation of the output current of a fuel cell stack can cause a fuel cell vehicle to rattle, leading to discomfort for passengers and potential damage to the vehicle.
- The performance of the fuel cell stack can degrade if the output current limitation is not properly controlled.
Benefits
- The device and method described in the patent application prevent the fuel cell vehicle from rattling by adjusting the output current limit threshold value of the fuel cell stack.
- By monitoring the stack's performance and preventing degradation, the system ensures the longevity and efficiency of the fuel cell system.
- This technology can enhance the overall driving experience in fuel cell vehicles by providing a smoother and more comfortable ride.
Original Abstract Submitted
Disclosed are a device and a method for controlling a fuel cell system, in which during operation of the fuel cell system, the device and method determine a minimum motoring current limit value applied to a motor for driving a fuel cell vehicle by varying an output current limit threshold value of the fuel cell stack by determining an available output current of the stack and by varying an available voltage lower limit threshold value of the stack by determining an available operating voltage of the stack, thereby preventing the fuel cell vehicle from rattling due to excessive limitation of output current of the stack. They also control the pressures of an anode and a cathode of the stack by monitoring whether the performance of the stack is degraded as limitation of output current of the stack is suppressed, thereby suppressing degradation of the performance of the stack.
