Patents by Inventor Marcel Fenkart

Marcel Fenkart 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).

  • Publication number: 20250135947
    Abstract: An on-board power supply system for a motor vehicle that includes a high-voltage voltage network with a high-voltage energy storage device for supplying voltage to one or more high-voltage consumers, a main converter for converting the high-voltage voltage present in the high-voltage voltage network into a predetermined low-voltage voltage present in the low-voltage voltage system for supplying voltage to one or more low-voltage consumers, a battery management system, and a bypass converter assembly. The bypass converter assembly is configured to transfer a specific, maximum permissible amount of energy from the high-voltage voltage network to the low-voltage voltage network during a parking phase of the motor vehicle.
    Type: Application
    Filed: November 10, 2022
    Publication date: May 1, 2025
    Inventors: Xavier ANZUELA RECASENS, Marcel FENKART, Joachim FROESCHL, Maximilian HASE, Andre SCHMITZ
  • Patent number: 10873110
    Abstract: A device is provided for determining the internal temperature of an electrochemical energy storage device, particularly for a motor vehicle. The internal temperature of a cell winding of the energy storage device is determined by calculation in a control device of the energy storage device by way of a thermal model for the energy storage device which is saved in the control device.
    Type: Grant
    Filed: July 25, 2018
    Date of Patent: December 22, 2020
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Matthias Fleckenstein, Marcel Fenkart, Oliver Bohlen
  • Publication number: 20180331403
    Abstract: A device is provided for determining the internal temperature of an electrochemical energy storage device, particularly for a motor vehicle. The internal temperature of a cell winding of the energy storage device is determined by calculation in a control device of the energy storage device by way of a thermal model for the energy storage device which is saved in the control device.
    Type: Application
    Filed: July 25, 2018
    Publication date: November 15, 2018
    Inventors: Matthias FLECKENSTEIN, Marcel Fenkart, Oliver Bohlen
  • Patent number: 10062932
    Abstract: A method is provided for determining the internal temperature of an electrochemical energy storage device, particularly for a motor vehicle. The internal temperature of a cell winding of the energy storage device is determined by calculation in a control device of the energy storage device by way of a thermal model for the energy storage device which is saved in the control device.
    Type: Grant
    Filed: October 18, 2013
    Date of Patent: August 28, 2018
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Matthias Fleckenstein, Marcel Fenkart, Oliver Bohlen
  • Publication number: 20140050951
    Abstract: A method is provided for determining the internal temperature of an electrochemical energy storage device, particularly for a motor vehicle. The internal temperature of a cell winding of the energy storage device is determined by calculation in a control device of the energy storage device by way of a thermal model for the energy storage device which is saved in the control device.
    Type: Application
    Filed: October 18, 2013
    Publication date: February 20, 2014
    Applicant: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Matthias FLECKENSTEIN, Marcel FENKART, Oliver BOHLEN
  • Patent number: 8029925
    Abstract: An electrochemical energy storage cell is provided, in particular an accumulator or a double layer capacitor. In the energy storage cell a core tube, which is open on its two ends, runs through the energy storage cell. Leads may be disposed inside the core tube and gaseous decomposition products, issuing from the energy storage cell, may be vented through the core tube. Furthermore, a cooling of the energy storage cell may take place by way of the core tube. An electronic circuit arranged in the cell monitors parameters of the energy storage cell.
    Type: Grant
    Filed: September 5, 2006
    Date of Patent: October 4, 2011
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Joachim Froeschl, Marcel Fenkart
  • Patent number: 7579709
    Abstract: A motor vehicle is provided with a capacitor device for storing electric energy. The capacitor device is specifically discharged by a short-circuiting switch, which is arranged in parallel to the terminal posts of the capacitor device, without any intermediary activity of a separate discharge resistor.
    Type: Grant
    Filed: November 15, 2006
    Date of Patent: August 25, 2009
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Georg Goetz, Hans Glonner, Marcel Fenkart
  • Patent number: 7513325
    Abstract: In a method for operating a hybrid vehicle, which includes an internal combustion engine and an electric machine as the propulsive drive, the electric machine operates in both motor and generator modes. Furthermore, there is an accumulator device, such as a capacitor assembly, for storing electric energy. The aim is to provide a method that guarantees an improved start-up operation of a hybrid motor vehicle in terms of fuel consumption and emission. This is achieved in that in the start-up operation the torque required on the basis of the request of the driver to drive the vehicle is divided between the internal combustion engine and the electric machine, as a function of the existing operating parameters of the vehicle.
    Type: Grant
    Filed: November 16, 2006
    Date of Patent: April 7, 2009
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Juergen Gebert, Marcel Fenkart
  • Patent number: 7507181
    Abstract: A method and device for determining a driving torque correction factor for compensating the driving torques of a drive unit including a first drive device and a second drive device, both of which act with their driving torque on a common drive shaft. The method includes specifying and setting a desired driving torque for one of the two drive devices, adjusting a brake torque for the other of the two drive devices to a brake torque value, which is equivalent to the value of the actual driving torque (that occurs on the basis of the desired driving torque) of one of the two drive devices, and determining the correction value as a function of the specified desired driving torque of the one drive device and as a function of the brake torque value of the other drive device, the brake torque value being adjusted at the time of the compensation of the torques.
    Type: Grant
    Filed: May 15, 2008
    Date of Patent: March 24, 2009
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Marcel Fenkart, Juergen Gebert, Oliver Grohe, Stephan Peuckmann, Stefan Schinagl
  • Publication number: 20080210509
    Abstract: A method and device for determining a driving torque correction factor for compensating the driving torques of a drive unit including a first drive device and a second drive device, both of which act with their driving torque on a common drive shaft. The method includes specifying and setting a desired driving torque for one of the two drive devices, adjusting a brake torque for the other of the two drive devices to a brake torque value, which is equivalent to the value of the actual driving torque (that occurs on the basis of the desired driving torque) of one of the two drive devices, and determining the correction value as a function of the specified desired driving torque of the one drive device and as a function of the brake torque value of the other drive device, the brake torque value being adjusted at the time of the compensation of the torques.
    Type: Application
    Filed: May 15, 2008
    Publication date: September 4, 2008
    Applicant: Bayerische Motoren Werke Aktiengsellschaft
    Inventors: Marcel Fenkart, Juergen Gebert, Oliver Grohe, Stephan Peuckmann, Stefan Schinagl
  • Publication number: 20070114077
    Abstract: A motor vehicle is provided with a capacitor device for storing electric energy. The capacitor device is specifically discharged by a short-circuiting switch, which is arranged in parallel to the terminal posts of the capacitor device, without any intermediary activity of a separate discharge resistor.
    Type: Application
    Filed: November 15, 2006
    Publication date: May 24, 2007
    Applicant: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Georg Goetz, Hans Glonner, Marcel Fenkart
  • Publication number: 20070062745
    Abstract: In a method for operating a hybrid vehicle, which includes an internal combustion engine and an electric machine as the propulsive drive, the electric machine operates in both motor and generator modes. Furthermore, there is an accumulator device, such as a capacitor assembly, for storing electric energy. The aim is to provide a method that guarantees an improved start-up operation of a hybrid motor vehicle in terms of fuel consumption and emission. This is achieved in that in the start-up operation the torque required on the basis of the request of the driver to drive the vehicle is divided between the internal combustion engine and the electric machine, as a function of the existing operating parameters of the vehicle.
    Type: Application
    Filed: November 16, 2006
    Publication date: March 22, 2007
    Applicant: Bayerische Motoren Werke Aktiengsellschaft
    Inventors: Juergen Gebert, Marcel Fenkart
  • Publication number: 20070054156
    Abstract: An electrochemical energy storage cell is provided, in particular an accumulator or a double layer capacitor. In the energy storage cell a core tube, which is open on its two ends, runs through the energy storage cell. Leads may be disposed inside the core tube and gaseous decomposition products, issuing from the energy storage cell, may be vented through the core tube. Furthermore, a cooling of the energy storage cell may take place by way of the core tube. An electronic circuit arranged in the cell monitors parameters of the energy storage cell.
    Type: Application
    Filed: September 5, 2006
    Publication date: March 8, 2007
    Applicant: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Joachim Froeschl, Marcel Fenkart