Procedure to operate an internal combustion engine with an...

Details Procedure to operate an internal combustion engine with an... Procedure to operate an internal combustion engine with an...

2006-10-10

2009-06-30

Eshete, Zelalem (Department: 3748)

Internal-combustion engines

Poppet valve operating mechanism

Hydraulic system

C123S090150

Reexamination Certificate

active

07552704

ABSTRACT:
In a procedure to operate an internal combustion engine with an electrohydraulic valve control which comprises electrically activated oil control valves for hydraulic actuators for the actuation of charge-cycle valves, a motor control unit as well as an output stage unit, which is connected to the motor control unit via a data link, at least a limited operation of the internal combustion engine is made possible during a breakdown of the data bus between the motor control unit and the output stage unit, in that the output stage unit is transferred into an autonomous mode of operation during a breakdown of the data link to the motor control unit.

REFERENCES:
patent: 5255641 (1993-10-01), Schechter
patent: 5890078 (1999-03-01), Furuta
patent: 2002/0069012 (2002-06-01), Hartke et al.
patent: 2005/0179623 (2005-08-01), Negoi
patent: 1047254 (2000-10-01), None
Abstract of EP1047254A1 shown above.

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