Patents by Inventor Maciej KULASZEWSKI

Maciej KULASZEWSKI has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method for diagnosing an exhaust gas catalytic converter, and motor vehicle
    Patent number: 10316770
    Abstract: The invention relates to a method and to a motor vehicle for diagnosing an exhaust gas catalytic converter (28), which is arranged in an exhaust gas tract (20) of an internal combustion engine (12) and is suitable for converting at least one exhaust gas component, wherein the exhaust gas tract (20) has an exhaust gas sensor (48) arranged upstream of the exhaust gas catalytic converter (28) and has an exhaust gas recirculation system (38), which is designed to remove at least part of the exhaust gas from an exhaust gas duct (24) of the exhaust gas tract (20) downstream of the exhaust gas catalytic converter (28) and to feed the removed exhaust gas to the internal combustion engine (12).
    Type: Grant
    Filed: December 29, 2014
    Date of Patent: June 11, 2019
    Assignee: Volkswagen Aktiengesellschaft
    Inventors: Burkhard Veldten, Maciej Kulaszewski
  • Method for diagnosing an exhaust gas catalytic converter, diagnosis device and motor vehicle having such a device
    Patent number: 9593617
    Abstract: A method for diagnosing an exhaust-gas catalytic converter (28) arranged in an exhaust-gas system (20) of an internal combustion engine (12) for the catalytic conversion of at least one exhaust-gas component from the internal combustion engine (12), which has an exhaust-gas recirculation means with which a partial stream of the exhaust gas can be drawn off downstream of the catalytic converter (14) and fed into the combustion air of the internal combustion engine (12), involves determining the current raw emission (NOx—raw) of the internal combustion engine (12) in of the exhaust-gas component; measuring the current concentration of the exhaust-gas component (NOx—meas) in the exhaust gas upstream of the catalytic converter (28); and determining a diagnostic value for the catalytic converter (28) in terms of the conversion of the exhaust-gas component as a function of the modelled raw emission (NOx—raw) from the internal combustion engine (12) and the measured concentration of the exhaust-gas component (NOx—me
    Type: Grant
    Filed: November 21, 2013
    Date of Patent: March 14, 2017
    Assignee: VOLKSWAGEN AKTIENGESELLSCHAFT
    Inventors: Burkhard Veldten, Maciej Kulaszewski
  • METHOD FOR DIAGNOSING AN EXHAUST GAS CATALYTIC CONVERTER, AND MOTOR VEHICLE
    Publication number: 20160312719
    Abstract: The invention relates to a method and to a motor vehicle for diagnosing an exhaust gas catalytic converter (28), which is arranged in an exhaust gas tract (20) of an internal combustion engine (12) and is suitable for converting at least one exhaust gas component, wherein the exhaust gas tract (20) has an exhaust gas sensor (48) arranged upstream of the exhaust gas catalytic converter (28) and has an exhaust gas recirculation system (38), which is designed to remove at least part of the exhaust gas from an exhaust gas duct (24) of the exhaust gas tract (20) downstream of the exhaust gas catalytic converter (28) and to feed the removed exhaust gas to the internal combustion engine (12).
    Type: Application
    Filed: December 29, 2014
    Publication date: October 27, 2016
    Inventors: Burkhard VELDTEN, Maciej KULASZEWSKI
  • METHOD FOR DIAGNOSING AN EXHAUST GAS CATALYTIC CONVERTER, DIAGNOSIS DEVICE AND MOTOR VEHICLE HAVING SUCH A DEVICE
    Publication number: 20150315951
    Abstract: A method for diagnosing an exhaust-gas catalytic converter (28) arranged in an exhaust-gas system (20) of an internal combustion engine (12) for the catalytic conversion of at least one exhaust-gas component from the internal combustion engine (12), which has an exhaust-gas recirculation means with which a partial stream of the exhaust gas can be drawn off downstream of the catalytic converter (14) and fed into the combustion air of the internal combustion engine (12), involves determining the current raw emission (NOx—raw) of the internal combustion engine (12) in of the exhaust-gas component; measuring the current concentration of the exhaust-gas component (NOx—meas) in the exhaust gas upstream of the catalytic converter (28); and determining a diagnostic value for the catalytic converter (28) in terms of the conversion of the exhaust-gas component as a function of the modelled raw emission (NOx—raw) from the internal combustion engine (12) and the measured concentration of the exhaust-gas component (NOx—me
    Type: Application
    Filed: November 21, 2013
    Publication date: November 5, 2015
    Inventors: Burkhard VELDTEN, Maciej KULASZEWSKI