Patents by Inventor Hajo MEINERT

Hajo MEINERT 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: 12109908
    Abstract: An electrified motor vehicle includes a display unit for displaying at least one residual range, a high-voltage accumulator, and at least one electronic control unit which determines an expected minimum range on the basis of the state of charge of the high-voltage accumulator and which determines, on the basis of the temperature of the high-voltage accumulator and the state of charge of the high-voltage accumulator, a temperature-dependent bonus range which is displayed instead of the minimum range if the minimum range has dropped to zero.
    Type: Grant
    Filed: May 27, 2020
    Date of Patent: October 8, 2024
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Andreas Ertlmeier, Hajo Meinert, Julian Wiesmeier
  • Patent number: 11398793
    Abstract: An electric traction machine, a motor vehicle, and a method for controlling dissipated heat in the electrical power plant of the motor vehicle are described herein. The power plant is supplied with a current, where, in order to provide a predetermined amount of dissipated heat, a ratio between a field-forming and a torque-forming current deviating from an optimum ratio for a respective operating point of the power plant is prescribed. The predetermined dissipated heat is provided by a power plant embodied as a magnet-less three-phase alternator while a rotor current flowing through a rotor of the three-phase alternator is adjusted, the field-forming and the torque-forming currents being prescribed such that acoustic interference signals of the three-phase alternator are minimized by the ratio, and the rotor current is adjusted such that the predetermined dissipated heat is provided by a combination of the rotor current and the ratio minimizing the interference signals.
    Type: Grant
    Filed: April 1, 2020
    Date of Patent: July 26, 2022
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Daniel Engelhardt, Jovan Knezevic, Hajo Meinert, Thomas Prosser
  • Publication number: 20220176848
    Abstract: An electrified motor vehicle includes a display unit for displaying at least one residual range, a high-voltage accumulator, and at least one electronic control unit which determines an expected minimum range on the basis of the state of charge of the high-voltage accumulator and which determines, on the basis of the temperature of the high-voltage accumulator and the state of charge of the high-voltage accumulator, a temperature-dependent bonus range which is displayed instead of the minimum range if the minimum range has dropped to zero.
    Type: Application
    Filed: May 27, 2020
    Publication date: June 9, 2022
    Inventors: Andreas ERTLMEIER, Hajo MEINERT, Julian WIESMEIER
  • Publication number: 20220131402
    Abstract: A method for determining a charging profile from a large number of charging profiles for a current charging process for charging an electrical energy store includes determining a current state of the energy store, determining the charging profile from the large number of charging profiles based on the current state of the energy store, and charging the energy store based on the determined charging profile.
    Type: Application
    Filed: March 26, 2020
    Publication date: April 28, 2022
    Inventors: Simon ERHARD, Andreas ERTLMEIER, Juergen HILDINGER, Dennis KUNZ, Hajo MEINERT
  • Patent number: 10814739
    Abstract: A method operates a storage system for a vehicle. The storage system has a first storage module and a second storage module for providing electrical energy to or for receiving electrical energy from a distribution network. The distribution network is coupled to an electrical motor of the vehicle. The first storage module is coupled by a direct current voltage converter to the distribution network. The method determines whether an amount of a voltage difference between a power supply voltage of the distributor network and a first storage voltage of the first storage module is equal to or less than a voltage threshold value. The method carries out one or more measures for increasing the amount of the voltage difference when it is determined that the amount is equal to or less than the voltage threshold value.
    Type: Grant
    Filed: May 17, 2018
    Date of Patent: October 27, 2020
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Vincent Molina, Andre Schmitz, Pablo Fritzsche, Frank Bauer, Hajo Meinert
  • Publication number: 20200228048
    Abstract: An electric traction machine, a motor vehicle, and a method for controlling dissipated heat in the electrical power plant of the motor vehicle are described herein. The power plant is supplied with a current, where, in order to provide a predetermined amount of dissipated heat, a ratio between a field-forming and a torque-forming current deviating from an optimum ratio for a respective operating point of the power plant is prescribed. The predetermined dissipated heat is provided by a power plant embodied as a magnet-less three-phase alternator while a rotor current flowing through a rotor of the three-phase alternator is adjusted, the field-forming and the torque-forming currents being prescribed such that acoustic interference signals of the three-phase alternator are minimized by the ratio, and the rotor current is adjusted such that the predetermined dissipated heat is provided by a combination of the rotor current and the ratio minimizing the interference signals.
    Type: Application
    Filed: April 1, 2020
    Publication date: July 16, 2020
    Inventors: Daniel ENGELHARDT, Jovan KNEZEVIC, Hajo MEINERT, Thomas PROSSER
  • Patent number: 10183580
    Abstract: A method and a system are provided for controlling waste heat generated by a motor vehicle having an electric drive including a rechargeable battery and an electric machine for driving the motor vehicle. The method includes determining the thermal load on at least two components of the electric drive; if a first electric component of the electric drive has a lower thermal load than a second electric component, actuating the electric drive such that the generation of waste heat in the first electric component increases and the generation of waste heat in the second electric component does not increase; and if the second electric component has a lower thermal load than the first electric component, actuating the electric drive such that the generation of waste heat in the second electric component increases and the generation of waste heat in the first electric component does not increase.
    Type: Grant
    Filed: October 25, 2016
    Date of Patent: January 22, 2019
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Felix Schedel, Michael Griesbeck, Hajo Meinert, Jens Richter, Philipp Hofmann
  • Publication number: 20180342881
    Abstract: A storage system configured to deliver electric power for propulsion of a vehicle includes a first storage module with at least N first sub-modules for the storage of electrical energy, where N>1, where the first storage module includes a switching unit to connect the N sub-modules in series, forming a series circuit, when the storage system is in a charge mode, and to connect the N sub-modules in parallel, forming a parallel circuit, when the storage system is in a drive mode. The storage system also includes a second storage module with at least one second sub-module for the storage of electrical energy, where the second storage module comprises a DC voltage converter which is configured to couple the second sub-module with the first storage module. A control unit is configured to control the switching unit and the DC voltage converter.
    Type: Application
    Filed: August 1, 2018
    Publication date: November 29, 2018
    Inventors: Andre Schmitz, Dieter Ziegltrum, Hajo Meinert
  • Publication number: 20180264968
    Abstract: A method operats a storage system for a vehicle. The storage system has a first storage module and a second storage module for providing electrical energy to or for receiving electrical energy from a distribution network. The distribution network is coupled to an electrical motor of the vehicle. The first storage module is coupled by a direct current voltage converter to the distribution network. The method determines whether an amount of a voltage difference between a power supply voltage of the distributor network and a first storage voltage of the first storage module is equal to or less than a voltage threshold value. The method carries out one or more measures for increasing the amount of the voltage difference when it is determined that the amount is equal to or less than the voltage threshold value.
    Type: Application
    Filed: May 17, 2018
    Publication date: September 20, 2018
    Inventors: Vincent MOLINA, Andre SCHMITZ, Pablo FRITZSCHE, Frank BAUER, Hajo MEINERT
  • Publication number: 20170036546
    Abstract: A method and a system are provided for controlling the waste heat generated by a motor vehicle having an electric drive, the electric drive including a rechargeable battery and an electric machine for driving the motor vehicle.
    Type: Application
    Filed: October 25, 2016
    Publication date: February 9, 2017
    Inventors: Felix SCHEDEL, Michael GRIESBECK, Hajo MEINERT, Jens RICHTER, Philipp HOFMANN