Patents by Inventor Petter Almhagen
Petter Almhagen 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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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: 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: 10023066Abstract: A method for determining a status of a vehicle battery includes determining an initial temperature and an initial state of charge of the battery, determining a current threshold value based on the initial temperature and the initial state of charge of the battery, starting the vehicle engine, charging the battery for a predetermined charging period t1, measuring two charging currents, I1 and I2, to the battery at two predetermined points in time during the charging period t1, determining an expected current value at a time t3=t1+t2 based on the measured charging currents, comparing the expected current value with the current threshold value, and determining the battery is faulty if the expected current value is lower than the current threshold value.Type: GrantFiled: September 12, 2016Date of Patent: July 17, 2018Assignee: Volvo Car CorporationInventors: Torbjorn Larsson, Alexander Engstrom, Linus Franzen, Mats Thorngren, Fabian Fogelberg, Pelle Thorson, Petter Almhagen, Emil Wall, Daniel Midholm
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Publication number: 20170080819Abstract: A method for determining a status of a vehicle battery includes determining an initial temperature and an initial state of charge of the battery, determining a current threshold value based on the initial temperature and the initial state of charge of the battery, starting the vehicle engine, charging the battery for a predetermined charging period t1, measuring two charging currents, I1 and I2, to the battery at two predetermined points in time during the charging period t1, determining an expected current value at a time t3=t1+t2 based on the measured charging currents, comparing the expected current value with the current threshold value, and determining the battery is faulty if the expected current value is lower than the current threshold value.Type: ApplicationFiled: September 12, 2016Publication date: March 23, 2017Applicant: VOLVO CAR CORPORATIONInventors: Torbjorn LARSSON, Alexander ENGSTROM, Linus FRANZEN, Mats THORNGREN, Fabian FOGELBERG, Pelle THORSON, Petter ALMHAGEN, Emil WALL, Daniel MIDHOLM
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Patent number: 9027525Abstract: An arrangement and a method are provided for improving performance of a start assist system for an internal combustion engine of a vehicle comprising: a start/stop system, a primary source of electrical energy, a secondary source of electrical energy, an electrical starter motor, an engine control unit, and additional vehicle electrical loads. A start controller is arranged such that the starter motor and engine control unit are operable with power supplied from the primary source of electrical energy at an initial cold starting attempt. If reset of the engine control unit occurs during the first cold starting attempt, the start controller is arranged such that the starter motor is operable with power supplied from the primary source of electrical energy and the engine control unit is operable with power supplied from the secondary source of electrical energy for an additional cold starting attempt.Type: GrantFiled: September 11, 2012Date of Patent: May 12, 2015Assignee: Volvo Car CorporationInventor: Petter Almhagen
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Publication number: 20130239921Abstract: An arrangement and a method are provided for improving performance of a start assist system for an internal combustion engine of a vehicle comprising: a start/stop system, a primary source of electrical energy, a secondary source of electrical energy, an electrical starter motor, an engine control unit, and additional vehicle electrical loads. A start controller is arranged such that the starter motor and engine control unit are operable with power supplied from the primary source of electrical energy at an initial cold starting attempt. If reset of the engine control unit occurs during the first cold starting attempt, the start controller is arranged such that the starter motor is operable with power supplied from the primary source of electrical energy and the engine control unit is operable with power supplied from the secondary source of electrical energy for an additional cold starting attempt.Type: ApplicationFiled: September 11, 2012Publication date: September 19, 2013Applicant: VOLVO CAR CORPORATIONInventor: Petter Almhagen
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Patent number: 8356584Abstract: An engine is disclosed having a flywheel arrangement comprising a starter motor (1) having a pinion gear (2) at an output shaft. The pinion gear (2) constantly engages a corresponding crank gear of a crank wheel (3) located between an engine block and a flywheel assembly (9) of the engine. The crank wheel (3) is operatively connected to a crankshaft (4) of the engine via a one-way clutch unit (5). The flywheel assembly (9) comprises a first flywheel body (6) connected to the crankshaft (4) of the engine. A second flywheel body (7) is rotatable relative to the first flywheel body (6) and coupled thereto such that is able to move elastically through a limited angular distance relative to the first flywheel body (6). An interlocking device includes at least one locking arrangement (8) and is adapted to produce an interlocking connection between the second flywheel body (7) and the first flywheel body (6) during cranking of the internal combustion engine.Type: GrantFiled: June 24, 2009Date of Patent: January 22, 2013Assignee: Volvo Car CorporationInventors: Petter Almhagen, Peter Ulrik Gast, Jonas Forssell, Lars Johan Stenvall
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Patent number: 8161933Abstract: A starter arrangement for an internal combustion engine the arrangement including a starter motor having a pinion gear coupled to an output shaft, the pinion gear being arranged in constant engagement with a corresponding crank gear of a crank wheel located between an engine block and a flywheel of the engine. The crank wheel is operatively coupled to a crankshaft of the engine via a one-way clutch unit loosely fitted to an end of the crankshaft, the crankshaft including a circumferential slot carrying a clip ring. The one-way clutch unit including a tube shaped hub loosely fitted to an end of the crankshaft, the axial movement of the one-way hub is fixed via a clip-ring in co-operation with a first axially delimiting member and a second axially delimiting member at least partially enclosed by the hub.Type: GrantFiled: December 16, 2008Date of Patent: April 24, 2012Assignee: Volvo Car CorporationInventors: Peter Gast, Jonas Forssell, Lars Stenvall, Petter Almhagen
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Publication number: 20100071652Abstract: An engine is disclosed having a flywheel arrangement comprising a starter motor (1) having a pinion gear (2) at an output shaft. The pinion gear (2) constantly engages a corresponding crank gear of a crank wheel (3) located between an engine block and a flywheel assembly (9) of the engine. The crank wheel (3) is operatively connected to a crankshaft (4) of the engine via a one-way clutch unit (5). The flywheel assembly (9) comprises a first flywheel body (6) connected to the crankshaft (4) of the engine. A second flywheel body (7) is rotatable relative to the first flywheel body (6) and coupled thereto such that is able to move elastically through a limited angular distance relative to the first flywheel body (6). An interlocking device includes at least one locking arrangement (8) and is adapted to produce an interlocking connection between the second flywheel body (7) and the first flywheel body (6) during cranking of the internal combustion engine.Type: ApplicationFiled: June 24, 2009Publication date: March 25, 2010Inventors: Petter Almhagen, Peter Ulrik Gast, Jonas Forssell, Lars Johan Stenvall
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Publication number: 20090151684Abstract: A starter arrangement for an internal combustion engine the arrangement including a starter motor having a pinion gear coupled to an output shaft, the pinion gear being arranged in constant engagement with a corresponding crank gear of a crank wheel located between an engine block and a flywheel of the engine. The crank wheel is operatively coupled to a crankshaft of the engine via a one-way clutch unit loosely fitted to an end of the crankshaft, the crankshaft including a circumferential slot carrying a clip ring. The one-way clutch unit including a tube shaped hub loosely fitted to an end of the crankshaft, the axial movement of the one-way hub is fixed via a clip-ring in co-operation with a first axially delimiting member and a second axially delimiting member at least partially enclosed by the hub.Type: ApplicationFiled: December 16, 2008Publication date: June 18, 2009Applicant: FORD GLOBAL TECHNOLOGIES, LLCInventors: Peter Gast, Jonas Forssell, Lars Stenvall, Petter Almhagen
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Publication number: 20080163842Abstract: The present invention relates to a starter arrangement for an internal combustion engine. The starter arrangement has a starter motor (1) having a pinion gear (2) at an output shaft. The pinion gear (2) is arranged in constant engagement with a corresponding crank gear of a crank wheel (3) located between an engine block (4) and a flywheel (11) of the engine. The crank wheel (3) is operatively connected to a crankshaft of the engine via a one-way clutch (6). The one-way clutch (6) is arranged at an engine block (4) side of a crankshaft oil seal (7) enabling lubrication and cooling thereof by an engine oil of the engine.Type: ApplicationFiled: September 27, 2007Publication date: July 10, 2008Inventors: Jonas Forssell, Peter Ulrik Gast, Lars Johan Stenvall, Petter Almhagen