Apparatus for regulating the exhaust gas recirculation rate in internal combustion engines having self-ignition
First Claim
1. In a control device for regulating the exhaust gas recycling rate in an internal combustion engine with self-ignition, the improvement comprising:
- means for detecting the ignition delay in at least one cylinder of the engine and generating an actual value signal proportional thereto;
means for generating a nominal value signal of the ignition delay which is dependent on engine operating characteristics; and
means for adjusting the actual value signal to the nominal value signal.
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Abstract
An apparatus for regulating the exhaust gas recycling rate in an internal combustion engine having self-ignition is proposed, in which a set-point or nominal ignition delay value is ascertained, and the actual ignition delay value is regulated to this nominal value. The nominal ignition delay value is efficaciously derived from a multi-dimensional memory, the coordinate values of which are dependent on at least load and rpm. The ignition delay time is ascertained from a comparison of the signal for the injection onset of an injection nozzle, for instance, and the signal of a pressure sensor communicating with the combustion chamber.
19 Citations
11 Claims
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1. In a control device for regulating the exhaust gas recycling rate in an internal combustion engine with self-ignition, the improvement comprising:
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means for detecting the ignition delay in at least one cylinder of the engine and generating an actual value signal proportional thereto; means for generating a nominal value signal of the ignition delay which is dependent on engine operating characteristics; and means for adjusting the actual value signal to the nominal value signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification