×

Virtual compressor outlet temperature sensing for charge air cooler overheating protection

  • US 7,143,580 B2
  • Filed: 10/22/2004
  • Issued: 12/05/2006
  • Est. Priority Date: 10/22/2004
  • Status: Expired due to Fees
First Claim
Patent Images

1. A method for controlling an internal combustion, compression-ignition engine, having an EGR circuit, a turbocharger compressor, and a charge air cooler, to avoid overheating the charge air cooler, the method comprising:

  • determining a crucial temperature above which damage to the charge air cooler could occur;

    determining current ambient conditions;

    determining current engine operating conditions;

    processing an equation wherein a value of turbocharger compressor output temperature is predicted as a function of parameters representing the determined current ambient conditions and current engine operating conditions;

    comparing the predicted turbocharger compressor output temperature with the determined crucial temperature; and

    controlling the engine to prevent damage to the charge air cooler if the turbocharger compressor output temperature exceeds the determined crucial temperature.

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