FUEL CELL SYSTEM AND CONTROL METHOD THEREFOR
First Claim
1. A fuel cell system arranged to charge a secondary battery that is detachable from the fuel cell system and to supply electric power to a load, the fuel cell system comprising:
- a fuel cell;
a determination device arranged to determine whether or not the secondary battery has been removed from the fuel cell system during a period of power generation in the fuel cell; and
a first controlling device arranged to control a power supply from the fuel cell to the load based on a result of the determination made by the determination device.
1 Assignment
0 Petitions
Accused Products
Abstract
A fuel cell system is arranged to charge a secondary battery, which is detachable from the fuel cell system, and to supply electric power to a load. The fuel cell system includes a cell stack having a plurality of fuel cells and a controller having a CPU. During power generation in the cell stack, the CPU determines whether or not the secondary battery has been removed from the fuel cell system based on a voltage drop in the cell stack. With the determination that the secondary battery has been removed, the CPU turns off a relay and power supply from the cell stack to the load is stopped. The fuel cell system reliably maintains its operation even after removal of the secondary battery.
24 Citations
20 Claims
-
1. A fuel cell system arranged to charge a secondary battery that is detachable from the fuel cell system and to supply electric power to a load, the fuel cell system comprising:
-
a fuel cell; a determination device arranged to determine whether or not the secondary battery has been removed from the fuel cell system during a period of power generation in the fuel cell; and a first controlling device arranged to control a power supply from the fuel cell to the load based on a result of the determination made by the determination device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
-
-
14. A controlling method for a fuel cell system arranged to charge a secondary battery that is detachable from the fuel cell system and to supply electric power to a load, the method comprising the steps of:
-
(a) causing a determination device to determine whether or not the secondary battery has been removed from the fuel cell system during power generation in a fuel cell; and (b) causing a first controlling device to control a power supply from the fuel cell to the load if the step (a) determines that the secondary battery has been removed. - View Dependent Claims (15, 16, 17, 18, 19, 20)
-
Specification