Patents by Inventor Robert Eriksson

Robert Eriksson 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: 20220037703
    Abstract: Devices, systems, methods, computer-implemented methods, and/or computer program products to facilitate an intelligent battery cell with integrated monitoring and switches are provided. According to an embodiment, a device can comprise active battery cell material. The device can further comprise an internal circuit coupled to the active battery cell material and comprising: one or more switches coupled to battery cell poles of the device; and a processor that operates the one or more switches to provide a defined value of electric potential at the battery cell poles.
    Type: Application
    Filed: May 3, 2021
    Publication date: February 3, 2022
    Inventors: Jonas Forssell, Robert Eriksson
  • Patent number: 11198376
    Abstract: A high voltage electrical system for a vehicle, the system comprising: a high voltage battery unit having a first high voltage battery connected in series with a second high voltage battery such that a nominal operating voltage of the battery unit is the sum of a voltage of the first high voltage battery and a voltage of the second high voltage battery; a bi-directional high voltage DC/DC-converter connected in parallel with the first high voltage battery and with the second high voltage battery, the DC/DC-converter being arranged to receive a charging voltage from a high voltage inlet or from a propulsion converter connected to an electrical machine; wherein the DC/DC converter is configured to control charging of the first and second high voltage battery to balance a state of charge of the first and second high voltage battery.
    Type: Grant
    Filed: February 21, 2019
    Date of Patent: December 14, 2021
    Assignee: Volvo Car Corporation
    Inventor: Robert Eriksson
  • Patent number: 11110807
    Abstract: A propulsion system for an electric vehicle, the system comprising a high voltage battery unit having a first high voltage battery connected in series with a second high voltage battery such that a nominal operating voltage of the high voltage battery unit is the sum of a voltage of the first high voltage battery and a voltage of the second high voltage battery; at least one power inverter arranged to connect the high voltage battery unit and the first high voltage battery to at least one electrical machine; wherein the power inverter is configured to distribute energy generated by the at least one electrical machine to the first and second high voltage battery to balance a state of charge of the first and second high voltage battery.
    Type: Grant
    Filed: April 1, 2020
    Date of Patent: September 7, 2021
    Assignee: Volvo Car Corporation
    Inventors: Robert Eriksson, Nikitas Sidiropoulos
  • Patent number: 11059370
    Abstract: A propulsion system for an electric vehicle comprising a high voltage battery unit having a first high voltage battery connected in series with a second high voltage battery and one or more power inverters arranged to connect the battery banks to one or more electric machines. The one or more power inverters and the one or more electric machines are configured to form a first and a second three-phase system, and the system and method relates to fault handling if a fault is detected in one of the first and second three-phase system. The architecture incorporating dual battery banks, and dual and/or multiphase inverters and electric machines can provide enhanced redundancy and limp home functionality in cases where a fault or error occurs in the inverter and/or in the electric machine so that a faulty three-phase system can be operated in a safe pulse-off mode.
    Type: Grant
    Filed: April 23, 2020
    Date of Patent: July 13, 2021
    Assignee: Volvo Car Corporation
    Inventors: Robert Eriksson, Nikitas Sidiropoulos
  • Publication number: 20200353843
    Abstract: A propulsion system for an electric vehicle comprising a high voltage battery unit having a first high voltage battery connected in series with a second high voltage battery, which may also be referred to as a first and second battery bank, and one or more power inverters arranged to connect the battery banks to one or more electric machines. The one or more power inverters and the one or more electric machines are configured to form a first and a second three-phase system. The described architecture incorporating dual battery banks, and dual and/or multiphase inverters and electric machines can provide enhanced redundancy and limp home functionality in cases where a fault or error occurs in the inverter and/or in the electric machine so that a faulty three-phase system can be operated in a safe-state mode.
    Type: Application
    Filed: April 1, 2020
    Publication date: November 12, 2020
    Inventors: Robert ERIKSSON, Nikitas SIDIROPOULOS
  • Publication number: 20200353823
    Abstract: A propulsion system for an electric vehicle, the system comprising a high voltage battery unit having a first high voltage battery connected in series with a second high voltage battery such that a nominal operating voltage of the high voltage battery unit is the sum of a voltage of the first high voltage battery and a voltage of the second high voltage battery; at least one power inverter arranged to connect the high voltage battery unit and the first high voltage battery to at least one electrical machine; wherein the power inverter is configured to distribute energy generated by the at least one electrical machine to the first and second high voltage battery to balance a state of charge of the first and second high voltage battery.
    Type: Application
    Filed: April 1, 2020
    Publication date: November 12, 2020
    Inventors: Robert ERIKSSON, Nikitas SIDIROPOULOS
  • Publication number: 20200353820
    Abstract: A propulsion system for an electric vehicle comprising a high voltage battery unit having a first high voltage battery connected in series with a second high voltage battery, which may also be referred to as a first and second battery bank, and one or more power inverters arranged to connect the battery banks to one or more electric machines. The one or more power inverters and the one or more electric machines are configured to form a first and a second three-phase system, and the system and method relates to fault handling if a fault is detected in one of the first and second three-phase system. The architecture incorporating dual battery banks, and dual and/or multiphase inverters and electric machines can provide enhanced redundancy and limp home functionality in cases where a fault or error occurs in the inverter and/or in the electric machine so that a faulty three-phase system can be operated in a safe pulse-off mode.
    Type: Application
    Filed: April 23, 2020
    Publication date: November 12, 2020
    Inventors: Robert ERIKSSON, Nikitas SIDIROPOULOS
  • Patent number: 10787095
    Abstract: Method for providing advice to an occupant of an electrical vehicle comprising at least one electrical energy storage, comprising the following steps: estimate an energy usage for a planned traveling path between a first (A) and a second (B) location, determine if there is a need to recharge, and when there is: identify at least one point of interest (POI1) which can be reached by a current amount of electrical energy, wherein the at least one point of interest (POI1) comprises at least one recharging station, provide an advice to stop at the at least one point of interest (POI1) for recharging, and further provide an instruction to recharge to a first state of charge level (SOC1), wherein the first state of charge level (SOC1) is such that the second location (B) or at least one other point of interest can be reached with a state of charge safety margin.
    Type: Grant
    Filed: November 26, 2018
    Date of Patent: September 29, 2020
    Assignee: Volvo Car Corporation
    Inventors: Hans Göran Milding, Robert Eriksson
  • Patent number: 10625618
    Abstract: A voltage supply unit for a vehicle is described, the voltage supply unit having a first output adapted to supply a first voltage to a first load and a second output adapted to supply a second voltage to a second load. The second voltage is obtained by a DC/DC converter powered by the first voltage, where the low voltage side of the DC/DC converter is connected to the second output and the high voltage side of the DC/DC converter is connected to the first output. Two different voltages can thereby be supplied by the use of one battery.
    Type: Grant
    Filed: May 3, 2018
    Date of Patent: April 21, 2020
    Assignee: VOLVO CAR CORPORATION
    Inventors: Jonas Forssell, Petter Almhagen, Robert Eriksson, Jonas Sjogren, Peter Bengtsson, Tobias Stalfors, Jan Muller, Anders Belfrage, Axel Vanerhav, Andreas Eriksson
  • Publication number: 20190283625
    Abstract: A high voltage electrical system for a vehicle, the system comprising: a high voltage battery unit having a first high voltage battery connected in series with a second high voltage battery such that a nominal operating voltage of the battery unit is the sum of a voltage of the first high voltage battery and a voltage of the second high voltage battery; a bi-directional high voltage DC/DC-converter connected in parallel with the first high voltage battery and with the second high voltage battery, the DC/DC-converter being arranged to receive a charging voltage from a high voltage inlet or from a propulsion converter connected to an electrical machine; wherein the DC/DC converter is configured to control charging of the first and second high voltage battery to balance a state of charge of the first and second high voltage battery.
    Type: Application
    Filed: February 21, 2019
    Publication date: September 19, 2019
    Inventor: Robert ERIKSSON
  • Publication number: 20190186932
    Abstract: Method for providing advice to an occupant of an electrical vehicle comprising at least one electrical energy storage, comprising the following steps: estimate an energy usage for a planned traveling path between a first (A) and a second (B) location, determine if there is a need to recharge, and when there is: identify at least one point of interest (POI1) which can be reached by a current amount of electrical energy, wherein the at least one point of interest (POI1) comprises at least one recharging station, provide an advice to stop at the at least one point of interest (POI1) for recharging, and further provide an instruction to recharge to a first state of charge level (SOC1), wherein the first state of charge level (SOC1) is such that the second location (B) or at least one other point of interest can be reached with a state of charge safety margin.
    Type: Application
    Filed: November 26, 2018
    Publication date: June 20, 2019
    Inventors: Hans Göran MILDING, Robert ERIKSSON
  • Publication number: 20180319287
    Abstract: A voltage supply unit for a vehicle is described, the voltage supply unit having a first output adapted to supply a first voltage to a first load and a second output adapted to supply a second voltage to a second load. The second voltage is obtained by a DC/DC converter powered by the first voltage, where the low voltage side of the DC/DC converter is connected to the second output and the high voltage side of the DC/DC converter is connected to the first output. Two different voltages can thereby be supplied by the use of one battery.
    Type: Application
    Filed: May 3, 2018
    Publication date: November 8, 2018
    Applicant: VOLVO CAR CORPORATION
    Inventors: Jonas FORSSELL, Petter ALMHAGEN, Robert ERIKSSON, Jonas SJOGREN, Peter BENGTSSON, Tobias STALFORS, Jan MULLER, Anders BELFRAGE, Axel VANERHAV, Andreas ERIKSSON
  • Patent number: 9475482
    Abstract: A plug-in hybrid electric vehicle includes an internal combustion engine driving a pair of wheels on a first axle and a transmission drivingly connecting the internal combustion engine and the wheels on a first axle. An integrated starter-generator is mounted on the internal combustion engine crankshaft between said internal combustion engine and the transmission. The vehicle further includes an electric motor driving a pair of wheels on a first axle and a main battery pack connected to a further electric motor arranged to supply electric power for driving the wheels on a second axle. The electric drive means can comprise one electric motor driving the second axle via a differential, two electric motors each driving one half of the second axle or two electric wheel motors for the respective wheels on the second axle. An additional battery is connected to the integrated starter-generator for starting the engine.
    Type: Grant
    Filed: September 11, 2012
    Date of Patent: October 25, 2016
    Assignee: V2 PLUG-IN HYBRID VEHICLE PARTNERSHIP HANDELSBOLAG
    Inventors: Klas Niste, Robert Eriksson, Patrik Larsson
  • Publication number: 20130066499
    Abstract: A plug-in hybrid electric vehicle includes an internal combustion engine driving a pair of wheels on a first axle and a transmission drivingly connecting the internal combustion engine and the wheels on a first axle. An integrated starter-generator is mounted on the internal combustion engine crankshaft between said internal combustion engine and the transmission. The vehicle further includes an electric motor driving a pair of wheels on a first axle and a main battery pack connected to a further electric motor arranged to supply electric power for driving the wheels on a second axle. The electric drive means can comprise one electric motor driving the second axle via a differential, two electric motors each driving one half of the second axle or two electric wheel motors for the respective wheels on the second axle. An additional battery is connected to the integrated starter-generator for starting the engine.
    Type: Application
    Filed: September 11, 2012
    Publication date: March 14, 2013
    Applicant: V2 PLUG-IN HYBRID VEHICLE PARTNERSHIP HANDELSBOLAG
    Inventors: Klas Niste, Robert Eriksson, Patrik Larsson
  • Patent number: 7878787
    Abstract: The invention relates to a forming tool 1 for forming fiber products. The forming tool according to the invention comprises a permeable shell 3 with an internal cavity 5 that is filled with loose objects 6 such as spheres. The cavity 5 is enclosed by the shell 3 and a permeable cover 7.
    Type: Grant
    Filed: January 17, 2007
    Date of Patent: February 1, 2011
    Assignee: PAKIT International Trading Company Inc.
    Inventors: Björn Nilsson, Lars Graffton, Leif Båskman, Robert Eriksson
  • Patent number: 7474649
    Abstract: A system and method of scheduling radio resources for a plurality of users in a packet-switched radio communication network. A scheduling number (Si) is calculated for each user before each scheduling event. A weight (Wi) is assigned to each user based on an associated Quality of Service. The Si varies depending on the assigned Wi and when the user entered the scheduling session. Radio resources are assigned to the user having the largest ratio Wi/Si between the weight and the scheduling number.
    Type: Grant
    Filed: March 5, 2002
    Date of Patent: January 6, 2009
    Assignee: Telefonaktiebolaget L M Ericsson (PUBL)
    Inventors: Ann-Christine Eriksson, Peter Werner, Heinz Robert Eriksson
  • Publication number: 20080279976
    Abstract: The invention relates to a forming tool 1 for forming fibre products. The forming tool according to the invention comprises a permeable shell 3 with an internal cavity 5 that is filled with loose objects 6 such as spheres. The cavity 5 is enclosed by the shell 3 and a permeable cover 7.
    Type: Application
    Filed: January 17, 2007
    Publication date: November 13, 2008
    Inventors: Bjorn Nilsson, Lars Graffton, Leif Baskman, Robert Eriksson
  • Patent number: 6333679
    Abstract: In a phase locked loop arrangement of a frequency synthesiser, a signal outputted from a voltage controlled oscillator is locked to a reference oscillator. A phase detector is arranged so that the frequency of the reference oscillator is a multiple of the frequency of the voltage controlled oscillator, which significantly reduces the phase noise emitted by the voltage controlled oscillator.
    Type: Grant
    Filed: June 9, 2000
    Date of Patent: December 25, 2001
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventor: Robert Eriksson
  • Patent number: 5585717
    Abstract: A measuring method for vehicles equipped with an internal combustion engine, the engine including a starter battery and a driven staffer motor used when an attempt is made to start the engine, is disclosed. According to the method, a voltage across a measuring shunt inserted in a current circuit between the battery and the starter motor is repeatedly measured, at a sampling rate, during each revolution of a crankshaft of the engine during activation of the starter motor. Corresponding values of a current delivered from the starter battery to the starter motor are derived from voltage measuring results. Values of the current are registered in a memory of a measuring computer. The registered values are used to establish a status of the combustion engine and its starting system. A value of a derivative of a rotational speed of the combustion engine crankshaft is obtained from the registered values.
    Type: Grant
    Filed: December 23, 1992
    Date of Patent: December 17, 1996
    Assignee: AB Volvo
    Inventors: Robert Eriksson, Urban Kristiansson, Christer Lundstrom
  • Patent number: 5378977
    Abstract: A device for making current measurements used in determining the charging status of a vehicle storage battery, comprising a ground conductor connected between one pole of the storage battery and the ground contact. The pole is connected via electrical conductors to a sensor having a source of electric power for providing at least one electric current to the ground connector. Values which are deducted from the current flowing through the ground conductor are provided to a microprocessor to determine the charging status of the battery.
    Type: Grant
    Filed: October 15, 1992
    Date of Patent: January 3, 1995
    Assignee: AB Volvo
    Inventors: Urban Kristiansson, Robert Eriksson