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).
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Publication number: 20220037703Abstract: 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: ApplicationFiled: May 3, 2021Publication date: February 3, 2022Inventors: Jonas Forssell, Robert Eriksson
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Patent number: 11198376Abstract: 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: GrantFiled: February 21, 2019Date of Patent: December 14, 2021Assignee: Volvo Car CorporationInventor: Robert Eriksson
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Patent number: 11110807Abstract: 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: GrantFiled: April 1, 2020Date of Patent: September 7, 2021Assignee: Volvo Car CorporationInventors: Robert Eriksson, Nikitas Sidiropoulos
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Patent number: 11059370Abstract: 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: GrantFiled: April 23, 2020Date of Patent: July 13, 2021Assignee: Volvo Car CorporationInventors: Robert Eriksson, Nikitas Sidiropoulos
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Publication number: 20200353843Abstract: 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: ApplicationFiled: April 1, 2020Publication date: November 12, 2020Inventors: Robert ERIKSSON, Nikitas SIDIROPOULOS
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Publication number: 20200353823Abstract: 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: ApplicationFiled: April 1, 2020Publication date: November 12, 2020Inventors: Robert ERIKSSON, Nikitas SIDIROPOULOS
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Publication number: 20200353820Abstract: 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: ApplicationFiled: April 23, 2020Publication date: November 12, 2020Inventors: Robert ERIKSSON, Nikitas SIDIROPOULOS
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Patent number: 10787095Abstract: 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: GrantFiled: November 26, 2018Date of Patent: September 29, 2020Assignee: Volvo Car CorporationInventors: Hans Göran Milding, Robert Eriksson
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Patent number: 10625618Abstract: 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: GrantFiled: May 3, 2018Date of Patent: April 21, 2020Assignee: VOLVO CAR CORPORATIONInventors: Jonas Forssell, Petter Almhagen, Robert Eriksson, Jonas Sjogren, Peter Bengtsson, Tobias Stalfors, Jan Muller, Anders Belfrage, Axel Vanerhav, Andreas Eriksson
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Publication number: 20190283625Abstract: 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: ApplicationFiled: February 21, 2019Publication date: September 19, 2019Inventor: Robert ERIKSSON
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Publication number: 20190186932Abstract: 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: ApplicationFiled: November 26, 2018Publication date: June 20, 2019Inventors: Hans Göran MILDING, Robert ERIKSSON
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Publication number: 20180319287Abstract: 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: ApplicationFiled: May 3, 2018Publication date: November 8, 2018Applicant: VOLVO CAR CORPORATIONInventors: Jonas FORSSELL, Petter ALMHAGEN, Robert ERIKSSON, Jonas SJOGREN, Peter BENGTSSON, Tobias STALFORS, Jan MULLER, Anders BELFRAGE, Axel VANERHAV, Andreas ERIKSSON
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Patent number: 9475482Abstract: 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: GrantFiled: September 11, 2012Date of Patent: October 25, 2016Assignee: V2 PLUG-IN HYBRID VEHICLE PARTNERSHIP HANDELSBOLAGInventors: Klas Niste, Robert Eriksson, Patrik Larsson
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Publication number: 20130066499Abstract: 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: ApplicationFiled: September 11, 2012Publication date: March 14, 2013Applicant: V2 PLUG-IN HYBRID VEHICLE PARTNERSHIP HANDELSBOLAGInventors: Klas Niste, Robert Eriksson, Patrik Larsson
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Patent number: 7878787Abstract: 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: GrantFiled: January 17, 2007Date of Patent: February 1, 2011Assignee: PAKIT International Trading Company Inc.Inventors: Björn Nilsson, Lars Graffton, Leif Båskman, Robert Eriksson
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Patent number: 7474649Abstract: 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: GrantFiled: March 5, 2002Date of Patent: January 6, 2009Assignee: Telefonaktiebolaget L M Ericsson (PUBL)Inventors: Ann-Christine Eriksson, Peter Werner, Heinz Robert Eriksson
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Publication number: 20080279976Abstract: 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: ApplicationFiled: January 17, 2007Publication date: November 13, 2008Inventors: Bjorn Nilsson, Lars Graffton, Leif Baskman, Robert Eriksson
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Patent number: 6333679Abstract: 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: GrantFiled: June 9, 2000Date of Patent: December 25, 2001Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventor: Robert Eriksson
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Patent number: 5585717Abstract: 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: GrantFiled: December 23, 1992Date of Patent: December 17, 1996Assignee: AB VolvoInventors: Robert Eriksson, Urban Kristiansson, Christer Lundstrom
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Device for making current measurements used in determining the charging of a vehicle storage battery
Patent number: 5378977Abstract: 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: GrantFiled: October 15, 1992Date of Patent: January 3, 1995Assignee: AB VolvoInventors: Urban Kristiansson, Robert Eriksson