Method of regulating combustion in the combustion chambers of an internal combustion engine
AssigneeRobert Bosch GmbH
InventorsKonrad Eckert, Klaus Muller, Ernst Linder, Helmut Maurer, Franz Rieger, Winfried Moser, Horst Franke, Rainer Burkel, Cornelius Peter
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Abstract
A method is proposed for regulating the combustion of operating mixtures in the combustion chambers of internal combustion engines. The course of the light intensity of the light resulting from combustion in the combustion chamber is detected and evaluated over the course of combustion; reference control variables derived therefrom are formed for use by subsequently disposed closed-loop control devices of the engine.
Claims29
A method for regulating the combustion of metered operating substances to be delivered to the combustion chambers of an internal combustion engine using light signals arising in the combustion chamber as a control variable, comprising the steps of,
- detecting the light intensity over the course of combustion;
- differentiating a detected signal corresponding to the instantaneous light intensity in the combustion chamber;
- developing in response thereto at least one characteristic point, such as maximum, turning point, point of increase, in the curve of the differentiated signal as a reference control variable with respect to the crankshaft angle position;
- and
- triggering in response to the reference control variable a closed-loop control device of the internal combustion engine.
A method for regulating the combustion of metered operating substances to be delivered to the combustion chambers of an internal combustion engine using light signals arising in the combustion chamber as a control variable, comprising
- detecting the light intensity over the course of combustion;
- integrating the light intensity signal as a signal for the combustion chamber status;
- developing in response thereto a reference control variable, and
- triggering in response to the reference control variable a closed-loop control device of the internal combustion engine.
A method for regulating the combustion of metered operating substances to be delivered to the combustion chambers of an internal combustion engine using light signals, arising in the combustion chamber as a control variable, comprising
- detecting the light intensity over the course of combustion;
- integrating the signal for the light intensity as a signal for the combustion chamber status;
- developing in response thereto an optimum control variable, and
- varying in response to the optimum control variable the operating mixture composition.
A method for regulating the combustion of metered operating substances to be delivered to the combustion chambers of an internal combustion engine using light signals, arising in the combustion chamber as a control variable, comprising
- detecting the light intensity over the course of combustion;
- integrating the signal for the light intensity as a signal for the combustion chamber status;
- developing in response thereto an optimum control variable, and
- varying in response to the optimum control variable the instant of ignition.
Dependencies are inferred from the claim text.