×

System for diagnosing an air handling mechanism of an internal combustion engine

  • US 6,687,601 B2
  • Filed: 03/21/2002
  • Issued: 02/03/2004
  • Est. Priority Date: 03/21/2002
  • Status: Active Grant
First Claim
Patent Images

1. A diagnostic system for an air handling mechanism of an air handling system for an internal combustion engine, the system comprising:

  • an actuator responsive to an actuator command to control position of the air handling mechanism;

    a first sensor producing a first signal indicative of a position of the air handling mechanism relative to a reference position;

    a second sensor producing a second signal indicative of an operation of another component of the air handling system separate from, yet responsive to changes in the position of, the air handling mechanism; and

    a control computer producing said actuator command, said control computer thereafter diagnosing an operating condition of said air handling mechanism as a function of said first and second signals.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×