17963610. DEVICE AND METHOD FOR CONTROLLING FUEL CELL SYSTEM simplified abstract (Kia Corporation)
Contents
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 determines a minimum motoring current limit value for the motor that drives the vehicle by adjusting the output current limit threshold value and the available voltage lower limit threshold value of the fuel cell stack. This prevents the vehicle from rattling due to excessive limitation of the stack's output current.
- The device and method control the pressures of the anode and cathode of the fuel cell stack.
- The performance of the stack is monitored to determine if it is degraded as the output current limitation is suppressed.
- The degradation of the stack's performance is suppressed by monitoring and adjusting the output current limitation.
Potential applications of this technology:
- Fuel cell vehicles
- Other applications that use fuel cell systems for power generation
Problems solved by this technology:
- Prevents excessive limitation of the fuel cell stack's output current, which can cause the vehicle to rattle.
- Suppresses degradation of the stack's performance as the output current limitation is adjusted.
Benefits of this technology:
- Improved control of the fuel cell system in a vehicle.
- Prevents rattling of the vehicle due to excessive output current limitation.
- Suppresses degradation of the fuel cell stack's performance.
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.
