Title:
MANIFOLD AIR FLOW (MAF) AND MANIFOLD ABSOLUTE PRESSURE (MAP) RESIDUAL ELECTRONIC THROTTLE CONTROL (ETC) SECURITY
Document Type and Number:
WIPO Patent Application WO/2005/108948
Kind Code:
A2
Abstract:
An engine fault diagnostic system includes a diagnostic module that generates a manifold absolute pressure (MAP) error signal and that generates a mass air flow (MAF) error signal. A security module generates an airflow fault when the MAP error signal exceeds a MAP threshold and the MAF error signal exceeds a MAF threshold.
Inventors:
Stempnik, Joseph (2423 Marlow, Warren, MI, 48092, US)
Colin, Roberts (5045 Irwin Drive, Holly, MI, 48442, US)
Kerfegar, Katrak (11125 Whispering Ridge Trail, Fenton, MI, 48430, US)
Bauerle, Paul (7778 Clyde Road, Fenton, MI, 48430, US)
Rogers, Bruce (23890 Hickory Grove Lane, Novi, MI, 48375, US)
Colin, Roberts (5045 Irwin Drive, Holly, MI, 48442, US)
Kerfegar, Katrak (11125 Whispering Ridge Trail, Fenton, MI, 48430, US)
Bauerle, Paul (7778 Clyde Road, Fenton, MI, 48430, US)
Rogers, Bruce (23890 Hickory Grove Lane, Novi, MI, 48375, US)
Application Number:
PCT/US2005/014077
Publication Date:
November 17, 2005
Filing Date:
April 22, 2005
Export Citation:
Assignee:
GENERAL MOTORS CORPORATION (Legal Staff-Mail Code 482-C23-B21, P.O. Box 300 Detroit, MI, 48265-3000, US)
International Classes:
F02D11/10; G01F25/00; G01L3/26; G01M15/00; (IPC1-7): G01M15/00; G01L3/26
Attorney, Agent or Firm:
Devries, Christopher (General Motors Corporation, Legal Staff-Mail Code 482-C23-B21 P.O. Box 30, Detroit MI, 48265-3000, US)
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