Perkins Engines Company Limited

Caterpillar Inc.

Molins Plc

Stephen William Bird

Evan Earl Jacobson

Geoffrey W Vernon

David Robert Seaward

Andrew John Cleall

Peter Ernest Willett

Philip Gordon Haddow

Michael David Smith

Syamala Srinivasan

James J Reed

Jeffery Lynn Prewett

Alan Michael Aindow

Paul J Quinney

Anil Raina

Sanjay K Rajani

Paul James Quinney

James Justin Reed

Rajani Sanjay

In one aspect an internal combustion engine assembly may be provided that may include at least one combustion chamber and an exhaust system with an after-treatment system that may have an oxidation catalyst and a particulate filter. The internal combustion engine assembly may include an electronic controller that may have a de-contamination function that may, responsive to a command be configured to de-contaminate the particulate filter and the oxidation catalyst. To that end, a method may be provided to, and the controller may be configured to increase the exhaust gas temperature at an inlet of the after-treatment system to above a de-contamination temperature during a certain time period.

After-treatment de-contamination system

A machine is disclosed. The machine may have an engine having a combustion chamber. The machine may also have a first sensor configured to generate a first signal indicative of a speed of the combustion engine. Additionally, the machine may have a second sensor configured to generate a second signal indicative of a desired supplied fuel quantity. The machine may also have a counter configured to generate a third signal indicative of a count. Additionally, the machine may have a fuel injection system having a controller. The controller may be configured to, based on the first, second, and third signals, select one of a plurality of shot modes and generate a corresponding fourth signal. The fuel injection system may also have a fuel injector configured to, based on the fourth signal, inject a quantity of fuel into the combustion chamber.

Method for operating fuel injection system

A method and system may be provided to perform a process for controlling a target system. In one aspect of the invention, the process may include determining a design space (D) including a first set of control data values associated with a set of control variables (X). A model () may be generated that reflects a relationship between the first set of control data values and a first set of response data values associated with a set of response variables (Y). Further, the process may test the model () to determine whether a set of predicted response data values associated with the set of response variables (Y) meets a predetermined criteria based on a set of actual response data values associated with the set of response variables (Y). The design space (D) may then be modified to obtain a relationship between a second set of control data values associated with the set of control variables and a second set of response data values associated with the set of response variables, and the second set of control data values may then be applied to the target system.

Method for controlling the performance of a target system

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Peterborough, United Kingdom

Stephen William Bird