Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – With indicator or control of power plant
Reexamination Certificate
2002-02-20
2004-02-10
Wolfe, Willis R. (Department: 3747)
Data processing: vehicles, navigation, and relative location
Vehicle control, guidance, operation, or indication
With indicator or control of power plant
C701S115000, C123S090150, C123S090170
Reexamination Certificate
active
06691024
ABSTRACT:
CROSS REFERENCE TO RELATED APPLICATIONS
This application is based on and hereby claims priority to German Application No. 10108055.7 filed on Feb. 20, 2001, the contents of which are hereby incorporated by reference.
BACKGROUND OF THE INVENTION
The invention relates to a method for controlling an internal combustion engine having a camshaft, the phase position of which is adjustable in relation to a crankshaft.
WO 99/43930 discloses a device for adjusting the sequence of movements of the inlet and exhaust valves of an internal combustion engine, in which the phase position of the camshaft can be adjusted in relation to a crankshaft. In this a mechanical adjusting part, which is controlled by way of a hydraulic system, is provided for adjustment of the phase position of the camshaft. The hydraulic system has a three-two-way valve, which is actuated by means of a control signal from a control device.
SUMMARY OF THE INVENTION
The object of the invention is to create a method for controlling an internal combustion engine having a camshaft, the phase position of which is adjustable in relation to a crankshaft, the method being on the one hand reliable and on the other permitting good operability in all operating conditions of the internal combustion engine.
The object is achieved by the features of the independent claim. Advantageous developments of the invention are identified in the subordinate claims.
REFERENCES:
patent: 5056477 (1991-10-01), Linder et al.
patent: 5450825 (1995-09-01), Geyer et al.
patent: 6505113 (2003-01-01), Eichenseher et al.
patent: 6567740 (2003-05-01), Eichenseher et al.
patent: 2002/0007244 (2002-01-01), Shimizu
patent: 40 28 442 (1992-03-01), None
patent: 43 17 527 (1993-12-01), None
patent: 199 58 174 (2000-10-01), None
patent: 99/43930 (1999-09-01), None
Patent Abstract of Japan, 07083080, Mar. 28, 1995.
Siemens Aktiengesellschaft
Wolfe Willis R.
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