Ford Global Technolgoies, LLC

Volvo Car Corporation

Gisela Blomkvist

Filip Acke

Arne Andersson

Hans Bernler

Roger Tengblad

The invention refers to a method and apparatus for converting NOand comprises the step of controlling a temperature in a NO-LNT by adsorbing NOin the LNT at a temperature below a predetermined temperature value to a predetermined value being the maximum amount of NOto be stored at the predetermined temperature value, thereafter heating the LNT to the predetermined temperature value, and thereafter starting a regeneration process by addition of reducing agents.

[object Object]

A method for providing an oil change indication to an operator of an internal combustion engine having an exhaust-after-treatment system requiring regeneration, The method includes detecting regeneration events performed on the exhaust-after-treatment system; detecting oil temperature events each time unit an oil temperature is over a threshold value, and providing the oil change indication to the operator as a function of the detected regeneration events and the detected oil temperature events.

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Göteborg, Sweden

Gisela Blomkvist