METHOD OF OPTIMIZING OPERATING COSTS OF AN INTERNAL COMBUSTION ENGINE
First Claim
Patent Images
1. A method for operating a diesel engine equipped with an electronic control unit (ECU) with memory;
- said engine in fluid communication with at least one aftertreatment device to reduce NOx;
said method comprising;
receiving input data regarding diesel fuel cost;
receiving input data regarding cost of diesel exhaust fluid;
determining a target engine-out NOx emission level based upon at least the diesel fuel cost input and the diesel exhaust fluid cost input;
determining a quantity of diesel exhaust fluid to be injected into the aftertreatment device; and
causing the determined quantity of diesel exhaust fluid to be injected into the aftertreatment device.
1 Assignment
0 Petitions
Accused Products
Abstract
A method to optimize operation of a diesel fuel engine having at least one aftertreatment device to reduce NOx is provided. An electronic control unit for a diesel engine with an aftertreatment device for the reduction of NOx is also provided. The method and the control unit optimize a quantity of fuel to be injected into an aftertreatment device based upon inputs relating to the cost of diesel fuel and the cost of diesel exhaust fluid.
-
Citations
18 Claims
-
1. A method for operating a diesel engine equipped with an electronic control unit (ECU) with memory;
- said engine in fluid communication with at least one aftertreatment device to reduce NOx;
said method comprising;receiving input data regarding diesel fuel cost; receiving input data regarding cost of diesel exhaust fluid; determining a target engine-out NOx emission level based upon at least the diesel fuel cost input and the diesel exhaust fluid cost input; determining a quantity of diesel exhaust fluid to be injected into the aftertreatment device; and causing the determined quantity of diesel exhaust fluid to be injected into the aftertreatment device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
- said engine in fluid communication with at least one aftertreatment device to reduce NOx;
-
9. An electronic control unit (ECU) for a diesel engine in fluid communication with an aftertreatment device for the reduction of NOx, said controller having instructions configured to receive input data regarding diesel fuel cost;
- receive input data regarding cost of diesel exhaust fluid;
determine a desired engine-out NOx emission level based upon at least the diesel fuel cost input and the diesel exhaust fluid cost input; and
determine a quantity of diesel exhaust fluid to be injected into the aftertreatment device. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17)
- receive input data regarding cost of diesel exhaust fluid;
-
18. A computer readable storage media configured with instructions to receive input data regarding diesel fuel cost;
- receive input data regarding cost of diesel exhaust fluid;
determine a desired engine-out NOx emission level based upon at least the diesel fuel cost input and the diesel exhaust fluid cost input; and
determine a quantity of diesel exhaust fluid to be injected into the aftertreatment device.
- receive input data regarding cost of diesel exhaust fluid;
Specification