Method for modifying detected camshaft position, controller, internal combustion engine and vehicle

A camshaft, internal combustion engine technology, applied in the field of vehicles with such an internal combustion engine, can solve problems such as difficulty in evaluating compensation accuracy, and achieve the effect of simplifying the method
CN112395733APending Publication Date: 2021-02-23VOLKSWAGEN AG
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
VOLKSWAGEN AG
Publication Date
2021-02-23

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Abstract

The invention relates to a method for modifying a detected camshaft position, comprising: detecting an actual gas signal in a gas space associated with a camshaft, said actual gas signal being adaptedto the detected camshaft position; processing the gas signal into an actual gas standard; modeling a plurality of simulated gas standards, wherein the simulated gas standards are respectively matchedwith rated camshaft positions; comparing the simulated gas standard with the actual gas standard; determining a simulated gas standard having the minimum deviation from the actual gas standard; determining an actual camshaft position, the actual camshaft position corresponding to a simulated gas standard having a minimum deviation from the actual gas standard; determining a camshaft position correction value according to the difference between the determined actual camshaft position and the detected camshaft position; and determining the corrected camshaft position by correcting the detectedcamshaft position with a camshaft position correction value. The invention also relates to an engine controller, an internal combustion engine and a vehicle for carrying out the method.
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Description

technical field

[0001] The invention relates to a method for modifying a detected camshaft position of a camshaft in an internal combustion engine. The invention also relates to a controller which is arranged and designed to carry out such a method, to an internal combustion engine for carrying out the method, and to a vehicle having such an internal combustion engine. Background technique

[0002] In modern internal combustion engines, especially gasoline engines, adjustable camshafts and valve controls are increasingly used for precise air control. Therefore, the control phase, control time and control curve of the intake valve and the exhaust valve can be flexibly designed in the meantime.

[0003] A so-called camshaft adjuster is used to adjust the control phase, which can control the angle of the cams on the camshaft through infinite adjustment. Variable valve control systems (for example the so-called Valve-Tronic) additionally make it possible to vary the valve lift...

Claims

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