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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Patent number: 10315642Abstract: A method is provided for moving off of a vehicle with a hybrid drive line, comprising a combustion engine; a gearbox with input shaft connected to the combustion engine and output shaft; a first planetary gear, which is connected to the input shaft, a first main shaft; a second planetary gear connected to the first planetary gear and a second main shaft; a first and second electrical machines respectively connected to the first and second planetary gears; a gear pair connected with the first main shaft; and a gear pair connected with the second main shaft. The method comprises: a) ensuring that the rotatable components of the first and second planetary gears are respectively disconnected from each other, b) ensuring that the corresponding gear pairs are engaged, and c) activating the first and second electrical machines so that a torque is generated in the output shaft.Type: GrantFiled: March 17, 2015Date of Patent: June 11, 2019Assignee: SCANIA CV ABInventors: Johan Lindström, Mathias Björkman, Niklas Pettersson, Mikael Bergquist
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Patent number: 10293806Abstract: A method is provided to start a combustion engine in a hybrid powertrain, comprising a gearbox with input shaft and output shaft; which combustion engine is connected to the input 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; 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. The method comprises connecting the rotatable components of the second planetary gear with each other by connecting, via a second coupling device, a second sun wheel arranged in the second planetary gear and a second planetary wheel carrier with each other, and activating the first and second electrical machines to start the combustion engine.Type: GrantFiled: March 17, 2015Date of Patent: May 21, 2019Assignee: SCANIA CV ABInventors: Johan Lindström, Mathias Björkman, Niklas Pettersson, Mikael Bergquist
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Patent number: 10279796Abstract: Disclosed is a method for control of a vehicle with a drive system comprising a planetary gear and a first and second electrical machine, connected with their rotors to the components of the planetary gear, a braking of the vehicle towards stop occurs by way of a distribution of the desired braking torque between the first and the second electrical machines, and wherein such electrical machines are controlled to transmit a total torque to an output shaft of the planetary gear, which corresponds to the desired braking torque at least to one predetermined low speed limit, before the vehicle stops.Type: GrantFiled: December 23, 2014Date of Patent: May 7, 2019Assignee: Scania CV ABInventors: Johan Lindström, Mathias Björkman, Mikael Bergquist, Niklas Pettersson
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Patent number: 10266172Abstract: A drive system for a vehicle includes two electrical machines arranged between a combustion engine and an input shaft to a gearbox. The first electrical machine rotor is connected with a planetary gear component, and the input shaft of the gearbox is connected with another planetary gear component. The second electrical machine rotor is connected via a transmission with the output shaft of the combustion engine, which is connected with another planetary gear component. planetary gear's components may be locked together to rotate at the same rotational speed, and released wherein the components rotate at different rotational speeds. Further, the output shaft of the combustion engine may either be locked in position with or released from the additional planetary gear component.Type: GrantFiled: December 22, 2014Date of Patent: April 23, 2019Assignee: Scania CV ABInventors: Johan Lindström, Mathias Björkman, Mikael Bergquist, Niklas Pettersson
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Patent number: 10246082Abstract: A drive system for a vehicle comprises an electrical machine, arranged between a combustion engine and an input shaft to a gearbox. The rotor of the electrical machine is connected with a component of a planetary gear, and the input shaft of the gearbox is connected with another component of such planetary gear. A first locking means may be moved between a locked position, in which the planetary gear's three components rotate at the same rotational speed, and a release position, in which the components are allowed to rotate at different rotational speeds. A second locking means is moveable between a locked position in which the output shaft of the combustion engine is locked together with a component in the planetary gear, and a release position, in which the combustion engine's output shaft is decoupled from such a component.Type: GrantFiled: December 22, 2014Date of Patent: April 2, 2019Assignee: Scania CV ABInventors: Johan Lindström, Mathias Björkman, Mikael Bergquist, Niklas Pettersson
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Patent number: 10239513Abstract: 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: March 26, 2019Assignee: Scania CV AbInventors: Johan Lindström, Mathias Björkman, Mikael Bergquist, Niklas Pettersson
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Patent number: 10214218Abstract: A method is provided to control a hybrid powertrain comprising an internal combustion engine, a gearbox, a range gearbox, and two electrical machines to achieve a shift operation from a low range position to a high range position with minimal to no torque interruption and optimal brake regeneration, on the one hand, and a large torque and a lame number of gear steps are achieved on the other hand.Type: GrantFiled: September 29, 2015Date of Patent: February 26, 2019Assignee: SCANIA CV ABInventors: Mikael Bergquist, Mathias Björkman, Johan Lindström, Niklas Pettersson
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Patent number: 10207701Abstract: A method is provided to start a hybrid powertrain to optimize fuel consumption, wherein such hybrid powertrain comprises a combustion engine; a gearbox with input shaft 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 one gear pair connected with the second main shaft. The method comprising: ensuring that the moveable parts of each of the first and second planetary gears are respectively disconnected from each other; bringing the combustion engine to a predetermined engine speed (nice); and controlling the first and the second electrical machine in such a way that a desired torque (TDrv) is achieved in the output shaft.Type: GrantFiled: March 17, 2015Date of Patent: February 19, 2019Assignee: Scania CV ABInventors: Mathias Björkman, Niklas Pettersson, Johan Lindström, Mikael Bergquist
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Patent number: 10195931Abstract: A method is provided for controlling a hybrid powertrain comprising a combustion engine, a gearbox, a range gearbox, and two electrical machines to achieve a shift operation from a low range position to a high range position with minimal to no torque interruption and optimal brake regeneration, on the one hand, and a large torque and a large number of gear steps are achieved on the other hand.Type: GrantFiled: September 29, 2015Date of Patent: February 5, 2019Assignee: Scania CV ABInventors: Mikael Bergquist, Mathias Björkman, Johan Lindström, Niklas Pettersson
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Publication number: 20180326971Abstract: 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: ApplicationFiled: June 15, 2016Publication date: November 15, 2018Inventors: Johan LINDSTRÖM, Mathias BJÖRKMAN, Mikael BERGQUIST, Niklas PETTERSSON
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Publication number: 20180326973Abstract: 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: ApplicationFiled: July 24, 2018Publication date: November 15, 2018Inventors: Niklas PETTERSSON, Mikael BERGQUIST, Johan LINDSTRÖM, Anders KJELL, Mathias BJÖRKMAN
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Publication number: 20180320783Abstract: 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: ApplicationFiled: June 15, 2016Publication date: November 8, 2018Inventors: Johan LINDSTRÖM, Mathias BJÖRKMAN, Mikael BERGQUIST, Niklas PETTERSSON
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Patent number: 10099676Abstract: A drive system for a vehicle comprises two electrical machines arranged between a combustion engine and an input shaft to a gearbox. The first machine's rotor and the input shaft of the gearbox are each connected to a separate component of a planetary gear. The second electrical machine's rotor is connected with the output shaft of the combustion engine, which is connected with another component of the planetary gear. A first locking means may be moved between a locked position, in which the planetary gear's three components rotate at the same rotational speed, and a release position, allowing for different rotational speeds. A second locking means is moveable between a locked position, in which the output shaft of the combustion engine is locked together with the second machine's rotor and a release position, in which the combustion engine's output shaft is disconnected from the second machine's rotor.Type: GrantFiled: December 23, 2014Date of Patent: October 16, 2018Assignee: SCANIA CV ABInventors: Johan Lindström, Mathias Björkman, Mikael Bergquist, Niklas Pettersson
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Patent number: 10081348Abstract: In a method for controlling a vehicle with a drive system comprising a power unit configuration adapted to provide output for the vehicle's operation, and further comprising a planetary gear and a first and second electrical machine, connected to components in the planetary gear via their rotors, a locking means is moved from a locked position, in which two of the planetary gear's components are locked together, so that the three components of the planetary gear rotate with the same speed, to a release position, when the vehicle is driven with the locking means in a locked position, by carrying out the following method steps. The power unit configuration is controlled in order to achieve torque balance between the components that are locked together by the locking means, and such locking means are moved into a release position, when said torque balance prevails.Type: GrantFiled: December 23, 2014Date of Patent: September 25, 2018Assignee: Scania CV ABInventors: Johan Lindström, Mathias Björkman, Mikael Bergquist, Niklas Pettersson
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Patent number: 10077044Abstract: A method is provided to control a hybrid powertrain, comprising: a) engaging a gear corresponding to either a gear pair connected with a first planetary gear in the gearbox or corresponding to a gear pair connected with a second planetary gear and an output shaft; b) selecting a gear by connecting two rotatable components in the first planetary gear with each other, via a first coupling device and/or connecting two rotatable components in the second planetary gear with each other, via a second coupling device; and c) controlling a switch such that a first electrical machine is set into a waiting state, if the second coupling device connects the two rotatable components of the second planetary gear with each other, and such that a second electrical machine is set into a waiting state, if the first coupling device connects the two rotatable components of the first planetary gear with each other.Type: GrantFiled: March 17, 2015Date of Patent: September 18, 2018Assignee: Scania CV ABInventors: Mathias Björkman, Niklas Pettersson, Johan Lindström, Mikael Bergquist
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Patent number: 10071728Abstract: A method is provided to control a hybrid powertrain, comprising a combustion engine; a gearbox with input and output shafts, which combustion engine is connected to the input 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 respectfully connected to the first and second planetary gears; first gear pair connected with the first planetary gear and output shaft; and second gear pair connected with the second planetary gear and output shaft. The method comprises: a) engaging gears in the first and second gear pairs; and b) connecting two rotatable components in the second planetary gear with a second coupling device.Type: GrantFiled: March 17, 2015Date of Patent: September 11, 2018Assignee: Scania CV ABInventors: Mathias Björkman, Niklas Pettersson, Mikael Bergquist, Johan Lindström
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Patent number: 10046758Abstract: The invention relates to a method to start a combustion engine in a hybrid powertrain by a) disconnecting rotatable components of a first planetary gear from each other, b) disconnecting rotatable components of a second planetary gear from each other, c) preventing rotation of at least one gear pair, which is connected with the first planetary gear and an output shaft and at least one gear pair, which is connected with the second planetary gear and the output shaft, prevent rotation of the output shaft, and e) activating a first electrical machine connected to the first planetary gear, and/or a second electrical machine connected to the second planetary gear, so that the combustion engine starts.Type: GrantFiled: March 17, 2015Date of Patent: August 14, 2018Assignee: Scania CV ABInventors: Johan Lindström, Mathias Björkman, Niklas Pettersson, Mikael Bergquist
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Patent number: 10046754Abstract: A method is provided to control a hybrid powertrain comprising engaging gears corresponding to a first gear pair connected with a first planetary gear in a gearbox with a first coupling device connecting two rotatable components in the first planetary gear; activating a second electrical machine to generate a propulsion torque on the output shaft via a second gear pair connected with a second planetary gear and the output shaft; disconnecting the first gear pair from the countershaft, by controlling the first electrical machine and a combustion engine connected with the first planetary gear to achieve a substantially zero torque state between the first gear pair; connecting the first gear pair to the countershaft, by controlling the combustion engine to achieve a synchronous rotational speed between the first gear pair; and activating the combustion engine and/or the first electrical machine to generate a propulsion torque on the output shaft.Type: GrantFiled: March 17, 2015Date of Patent: August 14, 2018Assignee: Scania CV ABInventors: Johan Lindström, Mathias Björkman, Niklas Pettersson, Mikael Bergquist
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Patent number: 10046756Abstract: 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: June 26, 2013Date of Patent: August 14, 2018Assignee: SCANIA CV ABInventors: Niklas Pettersson, Mikael Bergquist, Johan Lindström, Anders Kjell, Mathias Björkman
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Patent number: 10023172Abstract: In a method for controlling 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 combustion engine is started while the vehicle is driven by ensuring that the rotor of the second electrical machine is connected with the output shaft of the combustion engine, and controlling such electrical machine's rotational speed towards the combustion engine's idling speed, whereupon fuel injection into the combustion engine is carried out to start the latter.Type: GrantFiled: December 23, 2014Date of Patent: July 17, 2018Assignee: Scania CV ABInventors: Johan Lindström, Mathias Björkman, Mikael Bergquist, Niklas Pettersson