EMI noise filter for eddy current turbo speed sensor

Details EMI noise filter for eddy current turbo speed sensor EMI noise filter for eddy current turbo speed sensor

2006-06-27

2006-06-27

Barlow, John (Department: 2863)

Data processing: measuring, calibrating, or testing

Measurement system

Speed

C702S142000

Reexamination Certificate

active

07069171

ABSTRACT:
A turbocharger speed controller includes a rising rate limiter having an input receiving a turbocharger speed signal and an output producing a rate limited turbocharger speed signal, a high envelope filter having an input receiving the rate limited turbocharger speed signal and an output producing a filtered and rate limited turbocharger speed signal, a turbocharger speed control signal generator having an input receiving the filtered and rate limited turbocharger speed signal and an output producing a turbocharger speed control signal based on comparison of the filtered and rate limited turbocharger speed signal with a desired turbocharger speed, and a swallowing capacity control mechanism responsive to the turbocharger speed control signal to vary a swallowing capacity of the turbocharger.

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patent: 2002/0047683 (2002-04-01), Kawashima

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