Acceleration processing method and apparatus

Details Acceleration processing method and apparatus Acceleration processing method and apparatus

1998-12-18

2000-10-10

Wambach, Margaret R.

Electrical pulse counters, pulse dividers, or shift registers: c

Applications

Measuring or testing

377 3, G01P 107

Patent

active

061309281

ABSTRACT:
A method of determining the acceleration of a rotating body by counting the number of teeth on a rotating gear member for one or more revolutions. The method minimizes the measurement lag using an overlapping method and calculating acceleration on each control loop that a new revolution count is available. The method determines the new tooth count based on the tooth count estimated for the next update. The old tooth count is discarded and the new tooth count is adjusted to match the old tooth count within the system constraints to provide less interrupts and faster acceleration updates. The number of gear revolutions to be counted are increased at higher gear speeds.

REFERENCES:
patent: 4722094 (1988-01-01), Goodzey
patent: 5123035 (1992-06-01), Hottinger et al.

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