Method for controlling an internal combustion engine
First Claim
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1. A method for controlling an internal combustion engine having a plurality of cylinders, the method comprising:
- ascertaining a lambda value by evaluating a measured signal of a lambda probe in exhaust gas of the internal combustion engine;
comparing at least two combustion periods of the internal combustion engine to each other;
in each case in one individual cylinder of the plurality of cylinders of the internal combustion engine, inducing the lambda value once in a direction of a lambda increase and once in a direction of a lambda decrease; and
for each of the at least two combustion periods by itself, summing-up the measured signal of the lambda probe and a square of the measured signal of the lambda probe.
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Abstract
A method for controlling an internal combustion engine in which in each case the lambda value is ascertained by evaluating a measuring signal of a lambda probe. In this context, two combustion periods of the internal combustion engine are compared to each other. In the two combustion periods, in a single cylinder the lambda value is induced once in the direction of a lambda increase and once in the direction of a lambda decrease.
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5 Claims
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1. A method for controlling an internal combustion engine having a plurality of cylinders, the method comprising:
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ascertaining a lambda value by evaluating a measured signal of a lambda probe in exhaust gas of the internal combustion engine;
comparing at least two combustion periods of the internal combustion engine to each other;
in each case in one individual cylinder of the plurality of cylinders of the internal combustion engine, inducing the lambda value once in a direction of a lambda increase and once in a direction of a lambda decrease; and
for each of the at least two combustion periods by itself, summing-up the measured signal of the lambda probe and a square of the measured signal of the lambda probe. - View Dependent Claims (2, 3, 4, 5)
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