Method for determining a critical reduction in shaft speed...

Details Method for determining a critical reduction in shaft speed... Method for determining a critical reduction in shaft speed...

2008-03-20

2010-02-16

Bui, Bryan (Department: 2863)

Data processing: measuring, calibrating, or testing

Measurement system

Speed

C702S147000

Reexamination Certificate

active

07664615

ABSTRACT:
A method for determining a critical reduction in shaft speed in a work machine having at least one monitored shaft driven by a crankshaft of an engine includes determining an actual rotational speed of the crankshaft; determining an actual rotational speed of a first monitored shaft; determining a filtered rotational speed of the first monitored shaft based on an algorithm that utilizes the actual rotational speed of the first monitored shaft, the actual rotational speed of the crankshaft, and a reference rotational speed of the crankshaft; comparing the filtered rotational speed to the actual rotational speed of the first monitored shaft; determining whether the actual rotational speed of the first monitored shaft deviates from the filtered rotational speed by a predetermined amount; and activating an alarm if the actual rotational speed of the first monitored shaft deviates from the filtered rotational speed by the predetermined amount.

REFERENCES:
patent: 5752210 (1998-05-01), Kato et al.
patent: 5855108 (1999-01-01), Salz et al.
patent: 5978720 (1999-11-01), Hieronymus et al.
patent: 2004/0102289 (2004-05-01), Aikawa et al.
patent: 4209930 (1992-07-01), None

Affiliated with

Also associated with

Rating

Method for determining a critical reduction in shaft speed... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for determining a critical reduction in shaft speed..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for determining a critical reduction in shaft speed... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4191675