| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a fuel injection pressure control method in a liquefied fuel engine capable of enhancing durability by preventing the deterioration of fuel consumption and a temperature rise in a motor and a motor driver caused by an increase in a load on the motor caused by the wasteful high rotation of a fuel pump driving motor. <P>SOLUTION: In a variable fuel injection pressure control method in a liquefied fuel engine for pressurizing liquefied fuel stored in a fuel tank 2 by a fuel pump 3 feeding the fuel to an injector 8 via fuel feed conduits 9A, 9B, and feeding the fuel to an engine 1, optimum control parameters are determined by executing simulation based on a formula model obtained from data of the engine speed and intake air pressure. A variable target fuel injection pressure control method is introduced in which an electronic control unit 10 provided on a fuel feeder determines required fuel injection pressure according to the obtained fuel injection requested by the engine 1 by using the determined control parameters. <P>COPYRIGHT: (C)2010,JPO&INPIT |
