Method for adapting mechanical tolerances when performing time m

Details Method for adapting mechanical tolerances when performing time m Method for adapting mechanical tolerances when performing time m

1999-01-21

2000-11-07

McCall, Eric S.

Measuring and testing

Test stand

For engine

G01M 1500

Patent

active

061420115

ABSTRACT:
A method for adapting mechanical tolerances when performing time measurements on rotating shafts includes assigning each two cylinders to a respective mechanical segment on a crankshaft sensor wheel, and obtaining two adaptation values for the same mechanical segment in order to correct segment times. If a difference between these two adaptation values is greater than a predefined threshold value, the adaptation increment is rejected as invalid. As a result, disruptive oscillations, such as may occur when a crankshaft with a two-mass flywheel is used, can be gated out during the adaptation of the measured time values.

REFERENCES:
patent: 5377535 (1995-01-01), Angermaier et al.
patent: 5428991 (1995-07-01), Klenk et al.
patent: 5696316 (1997-12-01), Mezger et al.
patent: 5789658 (1998-08-01), Henn et al.
patent: 5979413 (1999-11-01), Ohnuma et al.

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