Cummins Inc.

Daniel Christopher Villiger

Rebekah Lippis McIntier

Daniel E Boewe

John D Ridge

Michael P Blanz

Mihir Agshikar

Abram L McCalment

Chetan V Shirsath

Anuj Maheshwari

A method includes operating an engine system including a plurality of cylinders, a plurality of fuel injectors configured to provide fuel the plurality of cylinders, a compression braking system configured to selectably brake at least a first set of the plurality of cylinders, and an exhaust aftertreatment system including at least one catalyst. The method includes determining a condition for brake-fuel operation and, in response to the act of determining, operating the engine in a brake-fuel mode wherein the compression brake is actuated to provide compression braking of the first set of the plurality of cylinders and a second set of the plurality of cylinders receives and combust fuel provided from respective ones of the plurality of fuel injectors.

Engine controls for exhaust aftertreatment thermal management

An electronic control system configured to control operation of an engine by evaluating whether to operate the engine in a green engine break-in mode. In the green engine break-in mode, the electronic control system is configured to determine a break-in torque limit for the engine, dynamically vary the break-in torque limit in response to break-in operation of the engine, and control operation of the engine using dynamically modified break-in torque limit.

Controls for break-in operation of green engines

Growing community of inventors

Columbus, IN, United States of America

Daniel Christopher Villiger