| 摘要 |
The present invention relates to a gas leak diagnosis method for a bi-fuel vehicle, comprising the following steps: determining whether a vehicle stops operating; temporarily delaying the cut-off of power of the vehicle when the vehicle is determined to be stopped; checking whether a gas leak occurs in a gas fuel supply unit depending on the switching state of a gas cylinder valve and a pressure control valve by controlling the opening and closing of the gas cylinder valve and the pressure control valve respectively; and completely stopping the operation of the stopped vehicle by shutting off the power of the vehicle. According to the present invention, a gas leak can be checked immediately before the vehicle completely stops operating. Therefore, a serious accident involving a gas leak can be prevented, so user safety can be secured. |
