| 摘要 |
PURPOSE:To surely prevent a driver from being oblivious of stopping an engine in time of refueling, by detecting the on-off operations of a feed port and a state of car stoppage as well as automatically stopping the engine when fuel is fed to a fuel tank of a car. CONSTITUTION:In the case where a car is in stoppage and a fuel lid on a fuel tank is opened, a speed detection circuit 6 outputs an L level, while a switch 7 for detecting the on-off operations of a fuel lid also outputs the L level. In consequence, a logical circuit 8 for a two-input process outputs an H level, turning on a transistor 9, and a relay coil 10 is energized with current whereby relay contact 11 becomes opened. With this constitution, power feed to an ignition device 4 is cut off and an engine comes to a stop automatically. Therefore, in time of fuel supply to a fuel tank, the engine can be automatically stopped without fail, dispensing with any manual operation by a driver, thus driver's obliviousness of stopping the engine is surely preventable. |
