×

Method and apparatus for controlling an internal combustion engine using accelerometers

  • US 7,133,761 B2
  • Filed: 04/12/2004
  • Issued: 11/07/2006
  • Est. Priority Date: 06/30/2003
  • Status: Active Grant
First Claim
Patent Images

1. A method of controlling combustion of a fuel within a combustion chamber of internal combustion engine, said method comprising,a. during a cycle of said engine:

  • i. introducing a charge into said combustion chamber,ii. compressing said charge within said combustion chamber,iii. introducing said fuel into said combustion chamber,iv. burning said fuel within said combustion chamber to drive a piston disposed within said combustion chamber,b. delivering an accelerometer data set to a controller, said accelerometer data set collected during at least two cycles of said engine,c. processing said accelerometer data set to generate a processed data set indicative of a heat release rate over said at least two cycles,d. estimating from said processed data set, an SOC error using a pre-determined target start of combustion for said fuel,e. if the magnitude of said SOC error is greater than 0, adjusting a start of combustion lever for at least one subsequent cycle of said engine to drive a corrected start of combustion during said at least one subsequent cycle towards said pre-determined target start of combustion.

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