Fail-safe control apparatus for internal combustion engine...

Details Fail-safe control apparatus for internal combustion engine... Fail-safe control apparatus for internal combustion engine...

2007-03-13

2007-03-13

Dolinar, Andrew M. (Department: 3747)

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

With indicator or control of power plant

C123S090150

Reexamination Certificate

active

10873139

ABSTRACT:
When any one of a plurality of variable valve characteristic mechanisms which vary different operating characteristics of an intake valve is failed, a limit which is capable of satisfying predetermined conditions for a change in opening timing of the intake valve at the time when the other operating characteristic is varied by the normally operating variable valve characteristic mechanism, is set and the operating characteristics of the intake valve are controlled while limiting the intake valve opening timing by the limit, by the normally operating variable valve characteristic mechanism.

REFERENCES:
patent: 6513469 (2003-02-01), Nakamura et al.
patent: 2000-110594 (2000-04-01), None
patent: 2001-065321 (2001-03-01), None

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