| 摘要 |
The invention relates to a high-pressure fuel pump control device capable of reducing current consumption, increasing pump durability, and promoting a rise of fuel pressure from startup. The high-pressure fuel pump control device comprises a fuel injector valve (30) for directly injecting fuel in a common rail (53) into a combustion chamber (17) and a high-pressure fuel pump (60) for feeding the fuel under pressure to the common rail (53). The high-pressure fuel pump (60) comprises a pressurization chamber (72), a plunger (62) for pressurizing the fuel in the pressurization chamber (72), a fuel passage valve disposed in the pressurization chamber (72), and an actuator for actuating the fuel passage valve. The control device includes a control unit (100) for executing output control of a drive signal for the actuator to vary a discharge rate of the high-pressure fuel pump (60). The control unit (100) starts outputting of the actuator drive signal during a period from operation start to a point in time at which the actuator drive signal becomes able to issue in a predetermined crank angle phase, and sets timing of stopping the outputting of the actuator drive signal to a point in time at which the fuel pressure in the common rail (53) has boosted over a predetermined value per unit time. <IMAGE> |
