Method and device for determining the phase position of a camshaft of an internal combustion engine
AssigneeSiemens Aktiengesellschaft
InventorPeter Haluska
Life of this patent
Estimating the term…
Abstract
The invention relates to an internal combustion engine comprising a crankshaft, a camshaft and an adjusting device, which is used to adjust the phase position of the camshaft in relation to the crankshaft. The phase position is determined in accordance with a detected crankshaft angle and a recorded camshaft angle. A filter coefficient of a filter is determined in accordance with the amplitude of an oscillation of the phase position and the modification of said phase position. A filtered phase position of the determined phase position is calculated using the filter.
Claims12
1-9. (canceled)
A method for determining a phase position of a camshaft of an internal combustion engine with a crankshaft, a camshaft and a setting mechanism such that a phase position of the camshaft can be adjusted in relation to the crankshaft, comprising:
- determining the phase position in accordance with a detected crankshaft angle and a recorded camshaft angle;
- determining a filter coefficient of a filter in accordance with an amplitude of an oscillation of the phase position and the modification of said phase position;
- and
- determining a filtered phase position of the determined phase position by the filter.
A device for determining a phase position of a camshaft of an internal combustion engine, comprising:
- a crankshaft shaft;
- a camshaft;
- a setting mechanism for setting the phase position of the camshaft such that the camshaft can be adjusted in relation to the crankshaft;
- a first means provided for determining the phase position in accordance with a detected crankshaft angle and a recorded camshaft angle;
- a second means provided for determining a filter coefficient of a filter in accordance with an amplitude of an oscillation of the phase position and the modification of said phase position;
- and
- a third means provided for determining a filtered phase position of the determined phase position by using the filter.
Dependencies are inferred from the claim text.