System and method for increasing tolerance to fuel variation
First Claim
1. A control system for a multiple fuel internal combustion engine, comprising:
- at least one cylinder pressure sensor associated with each cylinder of the engine;
a data collection module configured to receive real-time cylinder pressure measurements from each of the at least one cylinder pressure sensors and calculate one or more actual combustion parameter values from the real-time cylinder pressure measurements;
a comparison module configured to receive the calculated one or more actual combustion parameter values from the data collection module and compare the calculated one or more actual combustion parameter values for each cylinder to theoretical combustion parameter values to determine any difference therebetween, wherein the theoretical combustion parameter values are derived independently from any actual combustion parameter values based on real-time sensor measurements; and
a process control module configured to control fuel injection of at least two different types of fuel supplied to each cylinder in order to reduce any difference between the calculated actual combustion parameter values for each cylinder and the theoretical combustion parameter values.
1 Assignment
0 Petitions
Accused Products
Abstract
A fuel control system for a multiple fuel internal combustion engine may include at least one cylinder pressure sensor associated with each cylinder of the engine. A data collection module may be configured to receive real-time cylinder pressure measurements from each of the at least one cylinder pressure sensors and calculate one or more actual combustion parameter values from the real-time cylinder pressure measurements. A comparison module may be configured to receive the calculated one or more actual combustion parameter values from the data collection module and compare the calculated one or more actual combustion parameter values for each cylinder to theoretical combustion parameter values to determine any difference therebetween, wherein the theoretical combustion parameter values are derived independently from any actual combustion parameter values based on real-time sensor measurements. A process control module may be configured to control fuel injection of at least two different types of fuel supplied to each cylinder in order to reduce any difference between the calculated actual combustion parameter values for each cylinder and the theoretical combustion parameter values.
8 Citations
20 Claims
-
1. A control system for a multiple fuel internal combustion engine, comprising:
-
at least one cylinder pressure sensor associated with each cylinder of the engine; a data collection module configured to receive real-time cylinder pressure measurements from each of the at least one cylinder pressure sensors and calculate one or more actual combustion parameter values from the real-time cylinder pressure measurements; a comparison module configured to receive the calculated one or more actual combustion parameter values from the data collection module and compare the calculated one or more actual combustion parameter values for each cylinder to theoretical combustion parameter values to determine any difference therebetween, wherein the theoretical combustion parameter values are derived independently from any actual combustion parameter values based on real-time sensor measurements; and a process control module configured to control fuel injection of at least two different types of fuel supplied to each cylinder in order to reduce any difference between the calculated actual combustion parameter values for each cylinder and the theoretical combustion parameter values. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. A multiple fuel internal combustion engine operable in a combined liquid and gaseous fuel mode;
- comprising;
a plurality of cylinders; a real-time cylinder pressure sensor associated with each of the plurality of cylinders; a liquid fuel injection system; a gaseous fuel injection system; and a control system comprising; a data collection module configured to receive real-time cylinder pressure measurements from each of the cylinder pressure sensors and calculate one or more actual combustion parameter values from the real-time cylinder pressure measurements; a comparison module configured to receive the calculated one or more actual combustion parameter values from the data collection module and compare the calculated one or more actual combustion parameter values for each cylinder to theoretical combustion parameter values to determine any difference therebetween, wherein the theoretical combustion parameter values are derived independently from any actual combustion parameter values based on real-time sensor measurements; and a process control module configured to control one or more of fuel injection of at least a liquid fuel and a gaseous fuel, and ignition in order to reduce any difference between the calculated actual combustion parameter values for each cylinder and the theoretical combustion parameter values. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
- comprising;
-
19. A method for controlling a multiple fuel internal combustion engine operable in at least a combination liquid and gaseous fuel mode, the method comprising:
-
receiving real-time cylinder pressure measurements from each of the cylinders of the multiple fuel internal combustion engine; calculating one or more actual combustion parameter values based on the real-time cylinder pressure measurements; comparing the calculated actual combustion parameter values for each cylinder to theoretical combustion parameter values to determine any difference therebetween, wherein the theoretical combustion parameter values are derived independently from any actual combustion parameter values based on real-time sensor measurements; and controlling one or more of fuel injection of at least a liquid fuel and a gaseous fuel, and ignition in order to reduce any difference between the calculated actual combustion parameter values for each cylinder and the theoretical combustion parameter values. - View Dependent Claims (20)
-
Specification