公开(公告)号：US06650994B2

公开(公告)日：2003-11-18

申请号：US09877728

申请日：2001-06-08

Applicant: Stefan Mühlberger ,  Ralf Koch ,  Christoph Steimel

Inventor： Stefan Mühlberger ,  Ralf Koch ,  Christoph Steimel

IPC: F02D4100

CPC classification number: F02D41/221 ,  F01L1/34 ,  F02D2200/025 ,  Y02T10/40

Abstract: A method for check the phase adjustment of a camshaft, in which the present phase angle of a variable phase camshaft can be detected reliably. A first value which corresponds to the actual noise level of the internal combustion engine is determined during a predetermined evaluation window and is compared with a second value, which corresponds to the actual noise level after phase adjustment of the camshaft, with the operation of the phase adjustment of the camshaft being assessed as a function of this comparison.

Abstract translation: 一种用于检查凸轮轴的相位调整的方法，其中可以可靠地检测可变相位凸轮轴的当前相位角。 在预定评估窗口期间确定对应于内燃机的实际噪声水平的第一值，并且与第二值进行比较，该第二值对应于凸轮轴的相位调整之后的实际噪声水平， 作为该比较的函数来评估凸轮轴的调整。