Compensating for VCT phase error over speed range

Details Compensating for VCT phase error over speed range Compensating for VCT phase error over speed range

2006-04-04

2006-04-04

Denion, Thomas (Department: 3748)

Internal-combustion engines

Poppet valve operating mechanism

With means for varying timing

C074S56800M, C092S121000, C123S090170

Reexamination Certificate

active

07021257

ABSTRACT:
A method for compensating for variable cam timing of an internal combustion engine is provided. The method includes: a) providing a periodical crank pulse signal; b) providing a periodical cam pulse signal; c) determining a segment, wherein the internal combustion engine speed induces a volatile change upon Zphase values; d) dividing the segment into sub-segments; and e) calculating Zphase values of a plurality of points within the sub-segments.

REFERENCES:
patent: 4928640 (1990-05-01), Van Vuuren et al.
patent: 5002023 (1991-03-01), Butterfield et al.
patent: 5107804 (1992-04-01), Becker et al.
patent: 5172659 (1992-12-01), Butterfield et al.
patent: 5184578 (1993-02-01), Quinn, Jr. et al.
patent: 5196793 (1993-03-01), Good et al.
patent: 5289805 (1994-03-01), Quinn, Jr. et al.
patent: 5361735 (1994-11-01), Butterfield et al.
patent: 5497738 (1996-03-01), Siemon et al.
patent: 5548995 (1996-08-01), Clinton et al.
patent: 5671145 (1997-09-01), Krebs et al.
patent: 5736633 (1998-04-01), Magner et al.
patent: 5856922 (1999-01-01), Jehanno
patent: 0787892 (1997-08-01), None
patent: 11082073 (1999-03-01), None

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