| 摘要 |
<P>PROBLEM TO BE SOLVED: To appropriately reduce variations in fuel injection amount among cylinders when lift duration of a plunger by any one of cam noses overlaps with an injection control period in any one of fuel injection valves. <P>SOLUTION: An internal combustion engine including: a high-pressure pump pressurizing and discharging fuel, from a fuel tank, by lifting a plunger with three cam noses of a cam of an intake camshaft; and fuel injection valves provided for four corresponding cylinders and injecting and supplying fuel, fed under pressure from the high-pressure pump through a high-pressure passage, into the corresponding cylinders. Furthermore, an electronic control device controls a fuel injection mode by each fuel injection valve based on a fuel pressure Pr in the high-pressure passage in a period immediately before fuel injection. The control unit executes pressure feed limiting control in which, when lift duration of the plunger by any one of the cam noses overlaps with injection control duration in any one of the fuel injection valves, feeding fuel under pressure by the high-pressure pump during the lift duration is halted by opening a spill valve. <P>COPYRIGHT: (C)2013,JPO&INPIT |
