Patents by Inventor Mikael Bergquist
Mikael Bergquist 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: 20220388495Abstract: The invention relates to a method, performed by a control device, for driving at least one power consumer connected to a powertrain of a vehicle. The at least one propulsion unit comprises a first electrical machine and a second electrical machine, wherein the first electrical machine is connected to a first main shaft and the second electrical machine is connected to a second main shaft. A connection shaft is connected to the first electrical machine; and the at least one power consumer comprises a first power consumer connected to the first main shaft and/or a second power consumer connected to the connection shaft.Type: ApplicationFiled: October 27, 2020Publication date: December 8, 2022Inventors: Mathias Björkman, Niklas Pettersson, Fredrik Sundén, Mikael Bergquist, Johan Lindström
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Patent number: 11446997Abstract: A hybrid powertrain that includes a combustion engine (4) and a gearbox (2) with an input shaft (8) and an output shaft (20); a first planetary gear (10) connected to the input shaft (8); a second planetary gear (12) connected to the first planetary gear (10); a first electrical machine (14) connected to the first planetary gear (10); a second electrical machine (16) connected to the second planetary gear (12); at least one gear pair (G1, 60, 72) connected to the first planetary gear (10) and to the output shaft (20); and at least one gear pair (G2, 66, 78) connected to the second planetary gear (12) and to the output shaft (20), a countershaft (18) provided between the combustion engine (4) and the gearbox (2) so that the engine (4) can be disconnected from the gearbox (2). Also disclosed is a method for controlling the disclosed hybrid powertrain (3). Also a vehicle (1) includes such a gearbox (2), and a method to control such a gearbox (2). Also a computer program (P) to control a gearbox.Type: GrantFiled: July 31, 2020Date of Patent: September 20, 2022Assignee: Scania CV ABInventors: Mathias Björkman, Niklas Pettersson, Johan Lindström, Mikael Bergquist
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Patent number: 11198427Abstract: A method is provided to control a hybrid powertrain to achieve a desired engine speed in a combustion engine, said powertrain comprising: a gearbox with input and output shafts with the combustion engine connected to the input shaft; a first planetary gear connected to the input shaft and a first main shaft; a second planetary gear connected to the first planetary gear and a second main shaft; first and second electrical machines respectfully connected to the first and second planetary gears; first gear pair connected with the first main shaft; and second gear pair connected with the second main shaft.Type: GrantFiled: March 17, 2015Date of Patent: December 14, 2021Assignee: Scania CVABInventors: Mathias Björkman, Niklas Pettersson, Johan Lindström, Mikael Bergquist
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Patent number: 11155265Abstract: A method is provided for moving off of a vehicle with a hybrid powertrain, comprising a combustion engine; a gearbox with input and output shafts; a first planetary gear connected to the input shaft and a first main shaft; a second planetary gear connected to the first planetary gear and a second main shaft; first and second electrical machines respectively connected to the first and second planetary gears and capable of operating each other; one gear pair connected with the first planetary gear and output shaft; and one gear pair connected with the second planetary gear and output shaft.Type: GrantFiled: March 17, 2015Date of Patent: October 26, 2021Assignee: Scania CV ABInventors: Johan Lindström, Mathias Björkman, Niklas Pettersson, Mikael Bergquist
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Publication number: 20200361299Abstract: A hybrid powertrain that includes a combustion engine (4) and a gearbox (2) with an input shaft (8) and an output shaft (20); a first planetary gear (10) connected to the input shaft (8); a second planetary gear (12) connected to the first planetary gear (10); a first electrical machine (14) connected to the first planetary gear (10); a second electrical machine (16) connected to the second planetary gear (12); at least one gear pair (G1, 60, 72) connected to the first planetary gear (10) and to the output shaft (20); and at least one gear pair (G2, 66, 78) connected to the second planetary gear (12) and to the output shaft (20), a countershaft (18) provided between the combustion engine (4) and the gearbox (2) so that the engine (4) can be disconnected from the gearbox (2). Also disclosed is a method for controlling the disclosed hybrid powertrain (3). Also a vehicle (1) includes such a gearbox (2), and a method to control such a gearbox (2). Also a computer program (P) to control a gearbox.Type: ApplicationFiled: July 31, 2020Publication date: November 19, 2020Inventors: Mathias Björkman, Niklas Pettersson, Johan Lindström, Mikael Bergquist
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Patent number: 10821978Abstract: Provided is a method to control a hybrid powertrain to achieve a reverse drive, wherein the hybrid powertrain comprises an internal combustion engine; a gearbox with an input and output shaft; a first planetary gear connected to the input shaft and a first main shaft; a second planetary gear connected to the first planetary gear and a second main shaft; first and second electrical machines respectively connected to the first and second planetary gears; one gear pair connected with the first main shaft and the output shaft; and one gear pair connected with the second main shaft and the output shaft, wherein the internal combustion engine is connected with the first planetary gear via the input shaft.Type: GrantFiled: September 29, 2015Date of Patent: November 3, 2020Assignee: Scania CV ABInventors: Mikael Bergquist, Mathias Björkman, Johan Lindström, Niklas Pettersson
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Patent number: 10787069Abstract: A hybrid powertrain that includes a combustion engine (4) and a gearbox (2) with an input shaft (8) and an output shaft (20); a first planetary gear (10) connected to the input shaft (8); a second planetary gear (12) connected to the first planetary gear (10); a first electrical machine (14) connected to the first planetary gear (10); a second electrical machine (16) connected to the second planetary gear (12); at least one gear pair (G1, 60, 72) connected to the first planetary gear (10) and to the output shaft (20); and at least one gear pair (G2, 66, 78) connected to the second planetary gear (12) and to the output shaft (20), a countershaft (18) provided between the combustion engine (4) and the gearbox (2) so that the engine (4) can be disconnected from the gearbox (2). Also disclosed is a method for controlling the disclosed hybrid powertrain (3). Also a vehicle (1) includes such a gearbox (2), and a method to control such a gearbox (2). Also a computer program (P) to control a gearbox.Type: GrantFiled: March 20, 2014Date of Patent: September 29, 2020Assignee: SCANIA CV ABInventors: Mathias Björkman, Niklas Pettersson, Johan Lindström, Mikael Bergquist
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Patent number: 10767736Abstract: A gearbox having an input shaft (8) and an output shaft (20); a first epicyclic gear (10) connected to the input shaft (8); a second epicyclic gear (12) connected to the first epicyclic gear (10); a first electrical machine (14) connected to the first epicyclic gear (10); a second electrical machine (16) connected to the second epicyclic gear (12); a first main shaft (34) connected to the first epicyclic gear (10); a second main shaft (36) connected to the second epicyclic gear (12).Type: GrantFiled: July 15, 2019Date of Patent: September 8, 2020Assignee: SCANIA CV ABInventors: Johan Lindstrom, Mathias Bjorkman, Niklas Pettersson, Mikael Bergquist
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Patent number: 10661783Abstract: Method disclosed to start a combustion engine in a hybrid powertrain comprising a gearbox with input and output shafts; a first planetary gear connected to the input shaft and a first main shaft; second planetary gear connected to the first planetary gear and a second main shaft; first and second electrical machines respectively connected to the first and second planetary gears; a first gear pair connected with the first main shaft, first planetary gear, and output shaft of the gear box; and a second gear pair connected with the second main shaft, second planetary gear and output shaft of the gear box. The method comprises: determining a desired torque in the output shaft of the gear box and a start torque in an output shaft of the combustion engine required to start the combustion engine, and controlling the first and second electrical machines to achieve both the desired and start torques.Type: GrantFiled: March 17, 2015Date of Patent: May 26, 2020Assignee: Scania CV ABInventors: Johan Lindström, Mathias Björkman, Niklas Pettersson, Mikael Bergquist
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Patent number: 10654469Abstract: A method for accelerating a vehicle driving forward, in which the vehicle has a propulsion system including a combustion engine with an output shaft (2a), a gearbox (3) with an input shaft (3a), an electric machine (9) comprising a stator and a rotor, and a planetary gear comprising a sun gear (10), a ring gear (11) and a planet wheel carrier (12). When accelerating the vehicle the torque of the electric machine is controlled and the rotational speed of the combustion engine is controlled until the components of the planetary gear have the same rotational speed and may be interlocked.Type: GrantFiled: July 24, 2018Date of Patent: May 19, 2020Assignee: SCANIA CV ABInventors: Niklas Pettersson, Mikael Bergquist, Johan Lindström, Anders Kjell, Mathias Björkman
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Patent number: 10618509Abstract: Disclosed is a method for control a vehicle with a drive system comprising an output shaft of a combustion engine and a planetary gear with a first and a second electrical machine, connected via their rotors to the components of the planetary gear, the vehicle is started by controlling the first electrical machine to achieve a torque thereof, so that the requested torque is transmitted to the planetary gear's output shaft, and controlling the second electrical machine to achieve a torque, so that the desired power to electrical auxiliary aggregates and/or loads in the vehicle, and/or electric energy storage means, if present in the vehicle, for exchange of electric energy with the first and second electrical machine is achieved.Type: GrantFiled: December 23, 2014Date of Patent: April 14, 2020Assignee: Scania CV ABInventors: Johan Lindström, Mathias Björkman, Mikael Bergquist, Niklas Pettersson
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Patent number: 10619730Abstract: A method for obtaining gear shifting of a vehicle, where the vehicle has a planetary gearing in the drive train, a combustion engine with an output shaft connected to a rotor of a second electric machine and to a first component of the planetary gearing, a first electric machine with a rotor connected to a third component of the planetary gearing and an input shaft of a gearbox connected to a second component of the planetary gearing. The method is started with the components of the planetary gearing interlocked by a locking means, in which they are released during the gear shifting and interlocked again after the gear shifting has been carried out.Type: GrantFiled: June 15, 2016Date of Patent: April 14, 2020Assignee: Scania CV ABInventors: Johan Lindström, Mathias Björkman, Mikael Bergquist, Niklas Pettersson
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Patent number: 10604142Abstract: Method for control of a drive system comprising a combustion engine with output shaft, gearbox with input shaft, electrical machine, and planetary gear comprising a sun wheel, a ring gear and a planetary wheel carrier. The method comprises, if torque from the combustion engine and the electrical machine is sufficient for the operation of the vehicle with the planetary gear in the release position, and if the vehicle's fuel consumption with the planetary gear in the release position is lower than in the locked position, controlling the electrical machine and the combustion engine such that the requested torque is provided, with the planetary gear in the release position. Otherwise, set the planetary gear in the locked position. A second locking means adapted to divide the combustion engine's output shaft in two sections in a release position, kept in a locked position if the planetary gear is in the release position.Type: GrantFiled: December 22, 2014Date of Patent: March 31, 2020Assignee: Scania CV ABInventors: Johan Lindström, Mathias Björkman, Mikael Bergquist, Niklas Pettersson
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Patent number: 10576962Abstract: Provided is a method to control a hybrid powertrain to achieve reverse drive, comprising an internal combustion engine, a gearbox with input output shafts; a first planetary gear connected to the input shaft and a second planetary gear; first and second electrical machines respectively connected to the first and second planetary gears; gear pair connected with the first planetary gear and the output shaft and one gear pair connected with the second planetary gear and the output shaft, wherein the internal combustion engine is connected with the first planetary gear via the input shaft.Type: GrantFiled: September 29, 2015Date of Patent: March 3, 2020Assignee: Scania CV ABInventors: Mikael Bergquist, Mathias Björkman, Johan Lindström, Niklas Pettersson
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Patent number: 10576814Abstract: The present invention relates to a hybrid powertrain, comprising an internal combustion engine; a gearbox with an input shaft and an output shaft; a first planetary gear, connected to the input shaft; a second planetary gear, connected to the first planetary gear; a first electrical machine, connected to the first planetary gear; a second electrical machine, connected to the second planetary gear; at least one gear pair, connected with the first planetary gear and the output shaft; and at least one gear pair, connected with the second planetary gear and the output shaft, wherein the internal combustion engine is connected with the first planetary gear via the input shaft, wherein a countershaft is arranged between the respective first and second planetary gears and the output shaft; and the countershaft is connected with the output shaft via a range gearbox.Type: GrantFiled: September 29, 2015Date of Patent: March 3, 2020Assignee: Scania CV ABInventors: Mikael Bergquist, Mathias Björkman, Johan Lindström, Niklas Pettersson
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Patent number: 10543738Abstract: The present invention relates to a hybrid powertrain and method of controlling same, the hybrid powertrain comprising an internal combustion engine; a gearbox with an input and an output shaft; a range gearbox connected to the output shaft; a first planetary gear connected to the input shaft; a second planetary gear connected to the first planetary gear; a first electrical machine connected to the first planetary gear; a second electrical machine connected to the second planetary gear; one gear pair connected with the first planetary gear and the output shaft; and one gear pair connected with the second planetary gear and the output shaft, wherein the internal combustion engine is connected with the first planetary gear via the input shaft. The range gearbox comprises a third planetary gear with a third sun wheel and a third planetary wheel carrier and a fourth clutch device arranged to connect and disconnect the third sun wheel with/from the third planetary wheel carrier.Type: GrantFiled: September 29, 2015Date of Patent: January 28, 2020Assignee: Scania CV ABInventors: Mikael Bergquist, Mathias Björkman, Johan Lindström, Niklas Pettersson
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Patent number: 10479350Abstract: A method is provided to control a hybrid powertrain, comprising a combustion engine; a gearbox with an input shaft connected to the combustion engine and an output shaft; a first planetary gear connected to the input shaft a second planetary gear connected to the first planetary gear; first and second electrical machines respectively connected to the first and second planetary gears; first gear pair connected with the first planetary gear and the output shaft; and second gear pair connected with the second planetary gear and the output shaft. The method comprises: a) engaging gears corresponding to the first gear pair and to the second gear pair; and b) connecting a second sun wheel, arranged in the second planetary gear and a second planetary wheel carrier with each other, with the use of a second coupling device.Type: GrantFiled: March 17, 2015Date of Patent: November 19, 2019Assignee: Scania CV ABInventors: Mathias Björkman, Niklas Pettersson, Johan Lindström, Mikael Bergquist
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Publication number: 20190338835Abstract: A gearbox having an input shaft (8) and an output shaft (20); a first epicyclic gear (10) connected to the input shaft (8); a second epicyclic gear (12) connected to the first epicyclic gear (10); a first electrical machine (14) connected to the first epicyclic gear (10); a second electrical machine (16) connected to the second epicyclic gear (12); a first main shaft (34) connected to the first epicyclic gear (10); a second main shaft (36) connected to the second epicyclic gear (12).Type: ApplicationFiled: July 15, 2019Publication date: November 7, 2019Inventors: Johan LINDSTROM, Mathias BJORKMAN, Niklas PETTERSSON, Mikael BERGQUIST
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Patent number: 10400862Abstract: A gearbox having an input shaft (8) and an output shaft (20); a first epicyclic gear (10) connected to the input shaft (8); a second epicyclic gear (12) connected to the first epicyclic gear (10); a first electrical machine (14) connected to the first epicyclic gear (10); a second electrical machine (16) connected to the second epicyclic gear (12); a first main shaft (34) connected to the first epicyclic gear (10); a second main shaft (36) connected to the second epicyclic gear (12).Type: GrantFiled: March 20, 2014Date of Patent: September 3, 2019Assignee: SCANIA CV ABInventors: Johan Lindström, Mathias Björkman, Niklas Pettersson, Mikael Bergquist
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Patent number: 10384671Abstract: A method is provided to start a combustion engine in a hybrid powertrain, comprising a gearbox with input and output shafts; a first planetary gear, connected to the input shaft and a first main shaft; a second planetary gear connected to the first planetary gear and a second main shaft; first and second electrical machines respectively connected to the first and second planetary gears; one gear pair connected with the first main shaft, and therefore with the first planetary gear and the output shaft; and one gear pair connected with the second main shaft. The method comprises: a) connecting an output shaft of the combustion engine with the input shaft of the gearbox, via a coupling device arranged between the output shaft and the input shaft; and b) controlling the first and second electrical machines to start the combustion engine.Type: GrantFiled: March 17, 2015Date of Patent: August 20, 2019Assignee: Scania CV ABInventors: Mathias Björkman, Niklas Pettersson, Johan Lindström, Mikael Bergquist