Method and device for ascertaining valve timing for...

Details Method and device for ascertaining valve timing for... Method and device for ascertaining valve timing for...

2007-08-07

2007-08-07

Cronin, Stephen K. (Department: 3747)

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

With indicator or control of power plant

C073S115060

Reexamination Certificate

active

11245226

ABSTRACT:
A method for ascertaining valve timing for gas exchange valves of an internal combustion engine in which a combustion chamber pressure characteristic is determined, a state function being calculated from the combustion chamber pressure characteristic and a combustion chamber volume characteristic, and the timing of the gas exchange valves is determined by analyzing the state function.

REFERENCES:
patent: 4633707 (1987-01-01), Haddox
patent: 6240359 (2001-05-01), Fujiwara et al.
patent: 197 41 820 (1999-03-01), None
patent: 103 06 903 (2004-08-01), None

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