EMI suppression for electronic engine control frequency signal i

Details EMI suppression for electronic engine control frequency signal i EMI suppression for electronic engine control frequency signal i

1984-12-24

1987-01-27

Lall, Parshotam S.

Boots, shoes, and leggings

364572, 375 58, 371 25, H04B 1500

Patent

active

046398856

ABSTRACT:
Periodic digital signal samples of redundant sensed engine RPM signals are rejected for limit exceedance of known performance values, the nonrejected digital signal samples are each compared with a synthesized RPM equivalent signal to further reject any sample which differs from the synthesized value by more than a selected difference value, one of the nonrejected samples are then used for the engine RPM indication, and in the event that both samples are rejected the synthesized value is used.

REFERENCES:
patent: 3303335 (1967-02-01), Pryor
patent: 3391344 (1968-07-01), Goldberg
patent: 4232381 (1980-11-01), Rennick et al.
patent: 4270809 (1981-06-01), Ohmori et al.

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