×

Airflow estimation for engines with displacement on demand

  • US 6,760,656 B2
  • Filed: 05/17/2002
  • Issued: 07/06/2004
  • Est. Priority Date: 05/17/2002
  • Status: Active Grant
First Claim
Patent Images

1. A control method for a displacement on demand engine, comprising:

  • providing a model for estimating cylinder air charge, wherein said model includes a history vector of inputs and states;

    updating said history vector of inputs and states when a cylinder firing interrupt occurs;

    determining an operating mode of said engine;

    based on said operating mode, selecting model parameters and model inputs;

    estimating said cylinder air charge; and

    wherein said operating mode of said engine includes partially displaced and fully displaced operating cylinder modes.

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