| 摘要 |
PROBLEM TO BE SOLVED: To prevent operation stop from occurring at low-temperature start by adhesion of a valve and a valve seat due to impurities contained in fuel. SOLUTION: The fuel supply device A comprises an injection control electronic circuit 9 for performing injection at normal time by applying power-supply voltage during a time required for predetermined valve suction and then by modulating the power-supply voltage through pulse-width modulation control. A control circuit 10 of the injection control electronic circuit 9 extends the required time for the suction of the injection valve by a delay circuit 13 based on a signal from a water temperature sensor 12 when temperature is lower than a predetermined value. COPYRIGHT: (C)2007,JPO&INPIT |
