Camshaft phasor synchronization system for an engine

Details Camshaft phasor synchronization system for an engine Camshaft phasor synchronization system for an engine

2008-06-23

2011-12-27

Kwon, John (Department: 3747)

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

With indicator or control of power plant

C123S090170

Reexamination Certificate

active

08086388

ABSTRACT:
A camshaft phasor control system for an engine includes a first camshaft position sensor that generates a first camshaft position signal based on a position of a first camshaft. A first summer generates a first error signal based on the first camshaft position signal and a first commanded position signal. A control module generates a raw duty cycle based on the first error signal. A second summer generates a modified duty cycle based on the raw duty cycle and a modifier. The control module generates the modifier based on the first error signal and speed of the first camshaft relative to a second camshaft.

REFERENCES:
patent: 5647318 (1997-07-01), Feucht et al.
patent: 7584044 (2009-09-01), Mladenovic et al.
patent: 7742866 (2010-06-01), McLain et al.
patent: 2004/0003788 (2004-01-01), Taylor et al.
patent: 2009/0145384 (2009-06-01), Cinpinski et al.

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