Volvo Truck Corporation

Mikael Forsberg

Anders Eriksson

Björn Henriksson

Sebastian Pelto-Piri

Sören Andermård

An aftertreatment system connected downstream an internal combustion engine arrangement for receiving exhaust gases conveyed from the internal combustion engine arrangement during operation thereof, wherein the aftertreatment system comprises first and second catalytic devices in series, wherein a gap is there between.

Aftertreatment system

The invention relates to a method for controlling braking of a vehicle (), comprising a diesel engine () and an exhaust after treatment (EAT) system () for treating exhaust from said diesel engine (), a set of ground engaging members (), and a transmission () between said set of ground engaging members () and said diesel engine (). The method comprises: &#x2014;In response to a determined present engine speed being equal to or less than a current engine braking minimum limit speed: changing the gear ratio of said transmission () such that an updated engine speed is obtained, whereby a determined present engine speed is above said current engine braking minimum limit speed (S), and&#x2014;In response to the determined present engine speed being above said current engine braking minimum limit speed: engine braking so as to decrease said present engine speed (S). The invention also relates to a computer program, a computer readable medium, a control unit, and a vehicle comprising a control unit.

Method for controlling the braking of a vehicle comprising a diesel engine

The present disclosure generally relates to a computer implemented method for controlling an exhaust gas aftertreatment system (EATS), specifically applying a scheme for preventing heat reduction at the EATS based on the estimated heat reduction. The present disclosure also relates to a corresponding exhaust gas aftertreatment system (EATS) and a computer program product.

Controlling an exhaust gas aftertreatment system

An aftertreatment system () connected downstream an internal combustion engine arrangement () for receiving exhaust gases conveyed from the internal combustion engine arrangement () during operation thereof, wherein the aftertreatment system comprises first and second catalytic devices in series, wherein a gap is there between.

A method is provided for controlling an internal combustion engine including at least one first cylinder and at least one second cylinder with respective reciprocating pistons, each of the first and second cylinders being arranged to receive air from a fresh air intake arrangement, to receive fuel, and to provide repetitive combustions by means of the received air and fuel, the method including receiving in the first cylinder air from the fresh air intake arrangement, expelling from the first cylinder gases in the form of the air received in the first cylinder or gases including at least a portion of the air received in the first cylinder, guiding to the second cylinder gases expelled from the first cylinder, injecting fuel into the second cylinder so as to provide repetitive combustions with air in the gases guided from the first cylinder to the second cylinder, and, while guiding to the second cylinder gases expelled from the first cylinder, throttling or inhibiting the supply to the second cylinder of air from the fresh air intake arrangement, wherein guiding to the second cylinder gases expelled from the first cylinder includes guiding to the second cylinder all gases expelled from the first cylinder.

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Gothenburg, Sweden

Mikael Forsberg