Patents by Inventor Dan STENQUIST

Dan STENQUIST 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 and apparatus for controlling an engine with EGR and a turbocharger
    Patent number: 10859014
    Abstract: A control system is provided for controlling an internal combustion engine. The internal combustion engine includes a turbocharging unit and an exhaust gas recirculation assembly. The control system is adapted to issue a boost pressure control signal. The control system includes a boost pressure controller adapted to determine the boost pressure control signal. The boost pressure controller has a first response time. The control system is adapted to issue an exhaust gas recirculation control signal for controlling an amount of recirculated exhaust gas via the exhaust gas recirculation assembly. The control system includes an exhaust gas recirculation controller adapted to determine the exhaust gas recirculation control signal independently of the boost pressure control signal. The exhaust gas recirculation controller has a second response time, wherein the first response time differs from the second response time.
    Type: Grant
    Filed: April 5, 2013
    Date of Patent: December 8, 2020
    Assignee: Volvo Truck Corporation
    Inventors: Johannes Foufas, Dan Stenquist
  • METHOD AND APPARATUS FOR CONTROLLING AN ENGINE WITH EGR AND A TURBOCHARGER
    Publication number: 20160061125
    Abstract: A control system is provided for controlling an internal combustion engine. The internal combustion engine includes a turbocharging unit and an exhaust gas recirculation assembly. The control system is adapted to issue a boost pressure control signal. The control system includes a boost pressure controller adapted to determine the boost pressure control signal. The boost pressure controller has a first response time. The control system is adapted to issue an exhaust gas recirculation control signal for controlling an amount of recirculated exhaust gas via the exhaust gas recirculation assembly. The control system includes an exhaust gas recirculation controller adapted to determine the exhaust gas recirculation control signal independently of the boost pressure control signal. The exhaust gas recirculation controller has a second response time, wherein the first response time differs from the second response time.
    Type: Application
    Filed: April 5, 2013
    Publication date: March 3, 2016
    Applicant: VOLVO TRUCK CORPORATION
    Inventors: Johannes FOUFAS, Dan STENQUIST