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CONTROL DEVICE FOR HIGH-PRESSURE PUMP

  • US 20160186741A1
  • Filed: 07/14/2014
  • Published: 06/30/2016
  • Est. Priority Date: 08/02/2013
  • Status: Abandoned Application
First Claim
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1. A control device for a high-pressure pump that is applied to a high-pressure pump including:

  • a plunger that reciprocates in conjunction with rotation of a rotational shaft so as to be able to change a volume of a pressurizing chamber; and

    a control valve that has a valve body disposed in a fuel suction passage that communicates with the pressurizing chamber and supplies/blocks fuel to/from the pressurizing chamber by displacing the valve body in an axial direction by energization control with respect to an electromagnetic section, and the control device for a high-pressure pump adjusting a fuel discharge amount of the high-pressure pump by switching between a valve opening and a valve closing of the control valve by the energization control, the control device for a high-pressure pump comprising;

    a movement detection section detecting movement of the valve body with respect to a drive command of the control valve;

    an actuation determination section making an actuation determination of the high-pressure pump on the basis of a detection result of the movement detection section; and

    an energization control section executing sound reduction control that reduces actuation sound of the high-pressure pump by controlling supply power supplied to the electromagnetic section on the basis of a determination result of the actuation determination in previous energization by the actuation determination section.

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