| 摘要 |
According to the invention, a fuel cell system (11) is used as an emergency energy supply for an electric-driven system (1, 1') that is critical to safety in a motor vehicle. The reservoirs (13, 14) for the fuel and oxidation agents can be separated from the electrodes (16, 17) of the fuel cell (12) by appropriate valves (18, 19). Said valves (18, 19) are controlled in such a way, that if the vehicle electric system (9) is intact, the supply of fuel is prevented and if the vehicle electric supply malfunctions, fuel is automatically supplied, thus providing electric energy for the system (1, 1') that is critical to safety. |
