High pressure fuel pump for reducing idle tick controls

High pressure fuel pump for reducing idle tick controls

  • CN 101,749,158 B
  • Filed: 12/08/2009
  • Issued: 06/22/2016
  • Est. Priority Date: 12/08/2008
  • Status: Active Grant
First Claim
Patent Images

1. being used for the mechanical electric magnet valve controlling a high pressure fuel pump method to supply fuel to electromotor, the method includes:

  • during idle condition,Described in regulable control, the described mechanical electric magnet valve of mechanical electric magnet valve closedown pulls electric current to reduce idle noise, described adjustment based on the downstream fuel pressure of described high pressure fuel pump, described adjustment include reducing in the conceived case described in pull electric current and instruction that described mechanical electric magnet valve can be made to increase according to downstream fuel pressure to close;

    Pull described in wherein regulating electric current include in response to because of described in pull the initialization of electric current time the described downstream fuel pressure of the described high pressure fuel pump not increased that causes, by described pull electric current increase to enable described mechanical electric magnet valve to close so that fuel pressure increase grade, described method farther includes;

    pulling on current duration increases to a persistent period, described Duration Ratio higher than idle engine speed engine speed under pull current duration longer, thus allow reduce pull current class。

View all claims
    ×
    ×

    Thank you for your feedback

    ×
    ×