Patents by Inventor Ingemar Eckerström

Ingemar Eckerström 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).

  • Patent number: 12128783
    Abstract: The invention relates to a method for optimizing energy management of an electrical propulsion system of a vehicle, wherein the electrical propulsion system of the vehicle comprises an energy storage system and an electric machine. The electrical propulsion system further comprises at least one electrical component, wherein the electrical component has an idle state and an operation state. The method comprising the steps of: a) determining at least one parameter of the electrical component being in the operation state; b) inputting the parameter into a thermal model of the electrical component; c) predicting the temperature Tp of the electrical component being in operation state in real time on board the vehicle; d) comparing the predicted temperature value Tp with a predefined threshold value Tmax, and, e) automatically reducing the magnitude of the electrical current through the electrical component to a safe level if the predicted temperature value Tp exceeds the predefined threshold value Tmax.
    Type: Grant
    Filed: August 21, 2019
    Date of Patent: October 29, 2024
    Assignee: VOLVO TRUCK CORPORATION
    Inventors: Ingemar Eckerström, Jörgen Johansson
  • Publication number: 20220281342
    Abstract: The invention relates to a method for optimizing energy management of an electrical propulsion system of a vehicle, wherein the electrical propulsion system of the vehicle comprises an energy storage system and an electric machine. The electrical propulsion system further comprises at least one electrical component, wherein the electrical component has an idle state and an operation state. The method comprising the steps of: a) determining at least one parameter of the electrical component being in the operation state; b) inputting the parameter into a thermal model of the electrical component; c) predicting the temperature Tp of the electrical component being in operation state in real time on board the vehicle; d)comparing the predicted temperature value Tp with a predefined threshold value Tmax, and, e) automatically reducing the magnitude of the electrical current through the electrical component to a safe level if the predicted temperature value Tp exceeds the predefined threshold value Tmax.
    Type: Application
    Filed: August 21, 2019
    Publication date: September 8, 2022
    Applicant: VOLVO TRUCK CORPORATION
    Inventors: Ingemar ECKERSTRÖM, Jörgen JOHANSSON
  • Patent number: 8656702
    Abstract: An exhaust gas after treatment system includes a diesel particulate filter unit (DPFU) provided downstream of a diesel engine, a selective catalytic reduction (SCR) arrangement provided in fluid communication with said DPFU, a first injector for feeding reducing agent into the exhaust gas provided downstream of said DPFU and upstream of said SCR, at least one NOx sensor provided downstream of said SCR for providing at least one NOx signal to a NOx coordinator, at least one temp sensor provided upstream and/or downstream of said SCR for providing at least one temp signal to said NOx coordinator, wherein said NOx coordinator is provided for switching said diesel engine into a high NOx mode or a low NOx mode depending on the values of the at least one NOx signal and the at least one temp signal.
    Type: Grant
    Filed: February 21, 2008
    Date of Patent: February 25, 2014
    Assignee: Volvo Lastvagnar AB
    Inventors: Christer Alm, Ingemar Eckerström, Hans Bernler, Johan Bengtsson
  • Publication number: 20100139249
    Abstract: An exhaust gas after treatment system includes a diesel particulate filter unit (DPFU) provided downstream of a diesel engine, a selective catalytic reduction (SCR) arrangement provided in fluid communication with said DPFU, a first injector for feeding reducing agent into the exhaust gas provided downstream of said DPFU and upstream of said SCR, at least one NOx sensor provided downstream of said SCR for providing at least one NOx signal to a NOx coordinator, at least one temp sensor provided upstream and/or downstream of said SCR for providing at least one temp signal to said NOx coordinator, wherein said NOx coordinator is provided for switching said diesel engine into a high NOx mode or a low NOx mode depending on the values of the at least one NOx signal and the at least one temp signal.
    Type: Application
    Filed: February 21, 2008
    Publication date: June 10, 2010
    Applicant: Volvo Lastvagnar AB
    Inventors: Christer Alm, Ingemar Eckerström, Hans Bernler, Johan Bengtsson