System and method for detection of degradation of vacuum...

Details System and method for detection of degradation of vacuum... System and method for detection of degradation of vacuum...

2006-01-31

2006-01-31

McCall, Eric S. (Department: 2855)

Measuring and testing

Brake testing

Vehicle installation

C701S034000

Reexamination Certificate

active

06990858

ABSTRACT:
Systems and methods for detecting degradation of a sensor in a vacuum brake booster coupled to a manifold of an internal combustion engine include measuring an engine or vehicle operating parameter to detect operating or control conditions and detecting degradation of the sensor based on the engine or vehicle operating parameter. In one embodiment the operating parameter is a measured or estimated manifold pressure. A pressure drop across a check valve disposed between the brake booster and the intake manifold may also be considered.

REFERENCES:
patent: 4582031 (1986-04-01), Janetzke et al.
patent: 4907556 (1990-03-01), Ischii et al.
patent: 5540209 (1996-07-01), Hasegawa et al.
patent: 5554801 (1996-09-01), Watanabe
patent: 5826559 (1998-10-01), Ichimoto et al.
patent: 5846164 (1998-12-01), Harada
patent: 5915357 (1999-06-01), Harada et al.
patent: 5938297 (1999-08-01), Whaite et al.
patent: 5950594 (1999-09-01), Mizuno
patent: 5950595 (1999-09-01), Yoshioka et al.
patent: 5954406 (1999-09-01), Sawada
patent: 6314733 (2001-11-01), Fallahi et al.
patent: 6360592 (2002-03-01), Harris et al.
patent: 6393345 (2002-05-01), Kerns et al.
patent: 6398319 (2002-06-01), Wilson et al.
patent: 6493617 (2002-12-01), Russell et al.
patent: 6557403 (2003-05-01), Kerns
patent: 6732578 (2004-05-01), Kerns
patent: 6741918 (2004-05-01), Kerns et al.
patent: 2001/0035166 (2001-11-01), Kerns et al.
patent: 2003/0177822 (2003-09-01), Kerns
patent: 2004/0016417 (2004-01-01), Kerns et al.
patent: 0 833 044 (1998-04-01), None
patent: 0 967 131 (1999-12-01), None
patent: 0 990 793 (2000-04-01), None
patent: 8-164840 (1994-12-01), None

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