| 摘要 |
PURPOSE:To lower the minimum operating voltage as well as to secure a low temperature starting characteristic to the full, by short-circuiting an interval between both ends of a current limiting resistor connected to a fuel injection solenoid valve with a switching device in time of engine starting. CONSTITUTION:A current limiting resistor 11, a main relay 12 and a power transistor 61 are all connected to an injector 2 or a fuel injection solenoid valve each in series. In this case, relay contacts of a relay 14 or a switching device are connected to the relay 11 in parallel, and this relay 14 is driven by a starter switch 15. And, in time of engine starting, first an ignition switch 13 is turned to ON, making the main relay 12 operate, then the starter switch 15 is turned to ON, making the relay 14 operate, and both ends of the resistor 11 are short-circuited. With this constitution, battery voltage+B is able to be impressed on the injector 2 as it is so that the injection 2 is fully operatable. |
