Method for controlling the quantity of fuel and/or air to an internal combustion engine on a cylinder-by-cylinder basis
First Claim
1. A method for controlling a quantity of fuel and/or air to an internal combustion engine on a cylinder-by-cylinder basis, comprising:
- analyzing a signal influenced by the combustion or pertaining to a quantity having influence on combustion and containing items of information from all cylinders, mutually offset in time, by ascertaining vibration components in the frequency range caused by cylinder-specific differences;
regulating the vibration components separately for selected frequencies; and
providing an amplitude regulator that determines the amplitude of a correction intervention and a phase regulator that determines the allocation of an intervention pattern with respect to the cylinders are provided for each frequency to be compensated.
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Accused Products
Abstract
A method for controlling the quantity of fuel and/or air to an internal combustion engine on a cylinder-by-cylinder basis is characterized in that a signal that is influenced by combustion or pertains to a quantity that influences the combustion and contains items of information from all cylinders, mutually offset in time, is analyzed by ascertaining vibration components in the frequency range caused by cylinder-specific differences and regulating these components separately for selected frequencies, and in that an amplitude regulator that determines the amplitude of a correction intervention measure and a phase regulator that determines the allocation of an intervention pattern with respect to the cylinders are provided for each frequency to be compensated.
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Citations
16 Claims
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1. A method for controlling a quantity of fuel and/or air to an internal combustion engine on a cylinder-by-cylinder basis, comprising:
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analyzing a signal influenced by the combustion or pertaining to a quantity having influence on combustion and containing items of information from all cylinders, mutually offset in time, by ascertaining vibration components in the frequency range caused by cylinder-specific differences;
regulating the vibration components separately for selected frequencies; and
providing an amplitude regulator that determines the amplitude of a correction intervention and a phase regulator that determines the allocation of an intervention pattern with respect to the cylinders are provided for each frequency to be compensated. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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Specification