Ford Global Technolgoies, LLC

Dirk Roemer

Frank Linzen

Evgeny Smirnov

Christoph Boerensen

Felix Goebel

Brendan Patrick Carberry

Jan Harmsen

Frederik De Smet

Matthew Allen Schneider

Robert Ukropec

Monika Angst

Kim Ford

Javier Castellano

Christian Winge Vigild

Yasser Mohamed Sayed Yacoub

Mario Balenovic

Andres Arevalo

Maria Armiento

Christian Nederlof

Methods and systems are provided for adjusting a regeneration scheme in response to ageing of a first catalyst and a second catalyst. In one example, a method may include determining a first ageing of the first catalyst and a second ageing of the second catalyst and updating factors of the regeneration scheme based on the first ageing and the second ageing.

Method for determining regeneration parameter values of a multiple LNT catalyst system, and device for data processing

Methods and systems are provided for an exhaust gas arrangement. In one example, a system comprises an air supply device arranged between a first LNT and a second LNT. The air supply device positioned to adjust an air/fuel ratio and a temperature of exhaust gas flowing to the second LNT and devices downstream thereof.

Methods and systems for an exhaust gas aftertreatment arrangement

An arrangement of an internal combustion engine with at least one first and one second nitrogen oxide storage catalytic converter is provided, wherein the first nitrogen oxide storage catalytic converter is arranged within a low-pressure exhaust gas recirculation circuit. A method for operating the arrangement is furthermore provided, wherein the nitrogen oxide storage catalytic converters can be used for the production of ammonia under operating conditions with a high load by providing rich exhaust gas conditions.

System and method for exhaust gas aftertreatment with lean NOx trap and exhaust gas recirculation

A method for controlling exhaust gas aftertreatment in an exhaust gas aftertreatment system having at least one nitrogen oxide storage catalyst and at least one catalyst for selective catalytic reduction is provided, wherein, in phases of a high load, a combustion engine is operated with a substoichiometric fuel/air mixture, and nitrogen oxides in the exhaust gas are reduced in the nitrogen oxide storage catalyst to ammonia, which is stored in the catalyst for selective catalytic reduction, and, when the storage capacity of the catalyst for selective catalytic reduction is exceeded, the combustion engine is operated with a superstoichiometric fuel/air mixture, thus allowing nitrogen oxides in the catalyst for selective catalytic reduction to be reduced by the stored ammonia.

Methods and systems for treating vehicle emissions

Methods and systems are provided for an exhaust gas aftertreatment system. In one example, a method may include limiting ammonia desorption from a catalyst in response to an increase in driver demand by activating an electric motor.

Methods and systems for an exhaust gas aftertreatment system

An operating method for a motor vehicle having a hybrid drivetrain includes, during a demand check, comparing at least one value which characterizes a current state of an exhaust-gas after-treatment device, with a setpoint value of the exhaust-gas after-treatment device. In response to the comparison indicating a deviation of the value characterizing the current state of the exhaust-gas after-treatment device from the setpoint value, a demand for a measure is indicated. The measure includes supplying charge gas, which includes recirculated exhaust gas, to the internal combustion engine during overrun operation. In addition, a capability check is carried out to detect conditions suitable for implementing the operating method.

Methods relating to exhaust after-treatment devices

A method for enriching the exhaust gas of an internal combustion engine with a reducing agent is provided, the internal combustion engine including at least one cylinder and having an intake system for admission of charge air, an exhaust gas discharge system for discharging exhaust gases, and at least one exhaust gas aftertreatment system for reducing nitrogen oxides arranged in the exhaust gas discharge system and which is periodically provided with a supply of reducing agent. The method comprises enriching the exhaust gas with the reducing agent in the exhaust gas discharge system upstream of at least the one exhaust gas aftertreatment system when a fuel supply of the at least one cylinder of the internal combustion engine is deactivated due to an absence of load demand.

Growing community of inventors

Cologne, Germany

Dirk Roemer