| 摘要 |
Disclosed is an ignition apparatus for an ISG vehicle using LPG as a fuel. According to the present invention, because an auxiliary fuel supply switch for detecting a switching state of a fuel supply switch and driving a plurality of fuel cutoff valves is separately installed to be switched in connection with the fuel supply switch, an ISG control is enabled by determining a switching state of the fuel supply switch using a second output voltage of the auxiliary fuel supply switch. As a fuel pressure of a fuel line is maintained in an idle stop state by driving the fuel cutoff valve according to a second voltage of a relay output from the auxiliary fuel supply switch, startup performance can be improved when an engine is restarted. Furthermore, as the fuel supply switch and the auxiliary fuel supply switch are switched off during an emergency situation, the fuel cutoff valve can be promptly control into a closed state. As a fuel pump driving motor is stopped, supply of a fuel can be promptly cut off during an emergency situation for preventing a secondary accident in advance. |
