Method for determining segment times of a sensor wheel of an iternal combustion engine

摘要

A method for determining segment times of a sensor wheel of an internal combustion engine, the sensor wheel being non-rotatably connected to a crankshaft of the internal combustion engine, marks being situated along the circumference of the sensor wheel, and the crankshaft of the internal combustion engine covering predetermined angle ranges during the segment times. Tooth times are determined as time intervals between two marks of the sensor wheel; a low-pass filtering is applied to the determined tooth times, and filtered tooth times are determined as a result of the low-pass filtering. Segment times of the sensor wheel are determined as a sum of filtered tooth times of a certain number of successive marks of the sensor wheel.

主权项

1. A method for determining a segment time of a sensor wheel of an internal combustion engine, the method comprising:
determining tooth times as time intervals between two marks of the sensor wheel, the sensor wheel being non-rotatably connected to a crankshaft of the internal combustion engine, the marks being situated along the circumference of the sensor wheel, and the crankshaft of the internal combustion engine covering predetermined angle ranges during the segment times; low-pass filtering the determined tooth times, and determining filtered tooth times as a result of the low-pass filtering; and determining segment times of the sensor wheel as a sum of filtered tooth times of a certain number of successive marks of the sensor wheel.