×

Method for detecting steady-state and transient air flow conditions for cam-phased engines

  • US 7,319,929 B1
  • Filed: 08/24/2006
  • Issued: 01/15/2008
  • Est. Priority Date: 08/24/2006
  • Status: Expired due to Fees
First Claim
Patent Images

1. An air flow state determining system that determines a mass air flow into a cylinder of an engine having a cam phaser, comprising:

  • a first module that determines whether an air flow state is one of steady-state and transient based on a cam phaser position; and

    a second module that determines said mass air flow using one of a mass air flow sensor signal and a speed density relationship based on whether said mass air flow state is one of steady-state and transient.

View all claims
  • 12 Assignments
Timeline View
Assignment View
    ×
    ×