Method and device for closed-loop combustion control for an internal combustion engine
First Claim
1. A method for closed-loop combustion control within an internal combustion engine, comprising the steps of:
- individually calculating of an actual Start of Combustion (SoC) for all cylinders of said internal combustion engine using information from a combustion sensor applied to the internal combustion engine;
calculating a 50% Mass Fraction Burned (MFB50) and a SoC information using cylinder pressure sensor information available from at least one leading cylinder of the internal combustion engine;
using a pressure-based MFB50 information from said at least one leading cylinder to control in a closed loop; and
using a pressure-based SoC information from said at least one leading cylinder as a reference value for comparison with the combustion sensor based value of SoC from the same cylinder in order to calculate the desired SoC for the other cylinders of the engine which are then controlled relative to said at least one leading cylinder.
4 Assignments
0 Petitions
Accused Products
Abstract
A method for closed-loop combustion control within an internal combustion engine, that includes, but is not limited to individual calculation of actual Start of Combustion (SoC) information for all cylinders of said internal combustion engine using information from a combustion sensor applied to the engine, calculation of 50% Mass Fraction Burned (MFB50) and SoC information using cylinder pressure sensor information available from at least one leading cylinder of the engine, using pressure-based MFB50 information from the at least one leading cylinder to control it in closed loop, and using pressure-based SoC information from said at least one leading cylinder as a reference value for comparison with the combustion sensor based value of SoC from the same cylinder in order to calculate the desired SoC for the other cylinders of the engine which are then controlled relative to said at least one leading cylinder.
30 Citations
19 Claims
-
1. A method for closed-loop combustion control within an internal combustion engine, comprising the steps of:
-
individually calculating of an actual Start of Combustion (SoC) for all cylinders of said internal combustion engine using information from a combustion sensor applied to the internal combustion engine; calculating a 50% Mass Fraction Burned (MFB50) and a SoC information using cylinder pressure sensor information available from at least one leading cylinder of the internal combustion engine; using a pressure-based MFB50 information from said at least one leading cylinder to control in a closed loop; and using a pressure-based SoC information from said at least one leading cylinder as a reference value for comparison with the combustion sensor based value of SoC from the same cylinder in order to calculate the desired SoC for the other cylinders of the engine which are then controlled relative to said at least one leading cylinder. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
-
9. A device for closed-loop combustion control within an internal combustion engine having a plurality of cylinders, comprising:
-
a combustion sensor applied to the internal combustion engine; a pressure sensor applied to at least one of the cylinders of the engine; and an electronic device adapted to; individually calculate an actual Start of Combustion (SoC) for all cylinders of said internal combustion engine using information from a combustion sensor applied to the internal combustion engine; calculate a 50% Mass Fraction Burned (MFB50) and a SoC information using cylinder pressure sensor information available from at least one leading cylinder of the internal combustion engine; use a pressure-based MFB50 information from said at least one leading cylinder to control in a closed loop; and use a pressure-based SoC information from said at least one leading cylinder as a reference value for comparison with the combustion sensor based value of SoC from the same cylinder in order to calculate the desired SoC for the other cylinders of the engine which are then controlled relative to said at least one leading cylinder. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
-
Specification