Apparatus and method for determining the remaining useful...

Details Apparatus and method for determining the remaining useful... Apparatus and method for determining the remaining useful...

2008-01-10

2010-12-14

Bugg, George A (Department: 2612)

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

C340S425500, C340S439000, C340S441000, C340S445000, C073S053050, C073S114430, C073S292000, C701S029000, C123S1960AB

Reexamination Certificate

active

07852201

ABSTRACT:
A vehicle has a transmission, a transmission filter, and a controller having an algorithm or method for predicting the remaining useful life of the filter. The algorithm or method uses a sensor to detect an operating event of the transmission, such as a completed shift event or zero transmission output speed event, and increases a stored value of an accumulated distance and time variable. A shift sensor is operable for comparing a detected speed ratio of the transmission to a stored threshold speed ratio for determining the completed shift event. The remaining useful filter life is predicted using one or more look up tables using the values of the accumulated distance and time variables. The accumulated distance is calculated in part by dividing a prior recorded accumulated distance value by a ratio of an output speed of the transmission to an actual vehicle speed.

REFERENCES:
patent: 5282386 (1994-02-01), Niemczyk et al.
patent: 5559494 (1996-09-01), Thompson
patent: 6504474 (2003-01-01), Goodnight et al.
patent: 7168304 (2007-01-01), Beaucaire et al.
patent: 2007/0131193 (2007-06-01), Takahashi

Affiliated with

Also associated with

Rating

Apparatus and method for determining the remaining useful... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus and method for determining the remaining useful..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for determining the remaining useful... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4155982