Patents by Inventor Afram KOURIE
Afram KOURIE 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: 11840236Abstract: A method in a control arrangement of a vehicle and a control arrangement for a vehicle for downshifting gears in an uphill slope are presented. The method comprises, when the vehicle is travelling in an uphill slope using an initial gear of the vehicle's automated manual transmission gearbox: simulating at least one speed profile for a downshift to, and a usage of, at least one gear; determining that a minimal speed of each one of the at least one simulated speed profile has a value indicating that the actual speed of the vehicle will be less than or equal to zero in the uphill slope; opening a clutch before is reduced to a value less than zero; activating at least one vehicle brake; shifting vehicle's automated manual transmission gearbox to a start gear; closing the clutch; and deactivating the at least one vehicle brake.Type: GrantFiled: March 12, 2021Date of Patent: December 12, 2023Assignee: Scania CV ABInventors: Anders Björkman, Richard Boström, Frank Mohr, Marcus Engman, Afram Kourie
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Publication number: 20230127657Abstract: A method in a control arrangement of a vehicle and a control arrangement for a vehicle for downshifting gears in an uphill slope are presented. The method comprises, when the vehicle is travelling in an uphill slope using an initial gear of the vehicle's automated manual transmission gearbox: simulating at least one speed profile for a downshift to, and a usage of, at least one gear; determining that a minimal speed of each one of the at least one simulated speed profile has a value indicating that the actual speed of the vehicle will be less than or equal to zero in the uphill slope; opening a clutch before is reduced to a value less than zero; activating at least one vehicle brake; shifting vehicle's automated manual transmission gearbox to a start gear; closing the clutch; and deactivating the at least one vehicle brake.Type: ApplicationFiled: March 12, 2021Publication date: April 27, 2023Applicant: Scania CV ABInventors: Anders BJÖRKMAN, Richard BOSTRÖM, Frank MOHR, Marcus ENGMAN, Afram KOURIE
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Patent number: 11548497Abstract: The invention relates to a method for propelling a vehicle comprising a first power source being an internal combustion engine and a second power source comprising at least one electrical machine. The vehicle is configured to be selectively driven according to a first mode and a second mode, wherein said second mode is prioritized more in relation to fuel efficiency of said vehicle than said first mode. When a maximum power for propelling said vehicle is requested, power delivered by said first power source and said second power source is controlled such that the total power delivered by said first and said second power source exceeds the maximum deliverable power of said first power source. The total power delivered by said first and said second power source is allowed to exceed the maximum deliverable power of said first power source when said vehicle is driven according to said second mode.Type: GrantFiled: June 1, 2018Date of Patent: January 10, 2023Assignee: Scania CV ABInventors: Mathias Björkman, Afram Kourie
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Patent number: 11498558Abstract: The present invention relates to a method to control a hybrid powertrain, comprising a combustion engine, an electric machine, a gearbox with input shaft and output shaft, wherein the combustion engine and the electric machine are connected to the input shaft. The method comprises the following steps: a) disconnecting the combustion engine from the input shaft with a coupling device, b) engaging a starting gear in the gearbox, which starting gear is higher than the gear at which the combustion engine's torque at idling speed is able to operate the input shaft, c) generating a torque in the input shaft with the electric machine, d) accelerating the electric machine, and e) connecting the combustion engine to the input shaft with the coupling device when the electric machine has reached substantially the same rotational speed as the combustion engine. The invention also relates to a hybrid powertrain and a vehicle.Type: GrantFiled: March 22, 2017Date of Patent: November 15, 2022Assignee: Scania CV ABInventors: Mats Liwell, Mattias Nilsson, Fredrik Sunden, Afram Kourie
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Patent number: 11370291Abstract: The invention relates to a method, system, vehicle, and computer program product for gear shifting in a hybrid powertrain, that comprises an internal combustion engine; an electric machine; a gearbox; and an energy storage unit connected to the electric machine, and at least one control unit arranged in communication with the internal combustion engine, the electric machine, the gearbox and the energy storage unit. The method comprises the steps of: determining an energy level in the energy storage unit; determining an acceleration ability with a subsequent gear; determining a target engine speed for the internal combustion engine based on the energy level in the energy storage unit and the acceleration ability; and controlling the gear shifting based on the target engine speed.Type: GrantFiled: November 29, 2016Date of Patent: June 28, 2022Assignee: Scania CV ABInventor: Afram Kourie
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Publication number: 20200180601Abstract: The invention relates to a method for propelling a vehicle comprising a first power source being an internal combustion engine and a second power source comprising at least one electrical machine. The vehicle is configured to be selectively driven according to a first mode and a second mode, wherein said second mode is prioritized more in relation to fuel efficiency of said vehicle than said first mode. When a maximum power for propelling said vehicle is requested, power delivered by said first power source and said second power source is controlled such that the total power delivered by said first and said second power source exceeds the maximum deliverable power of said first power source. The total power delivered by said first and said second power source is allowed to exceed the maximum deliverable power of said first power source when said vehicle is driven according to said second mode.Type: ApplicationFiled: June 1, 2018Publication date: June 11, 2020Applicant: Scania CV ABInventors: Mathias BJÖRKMAN, Afram KOURIE
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Publication number: 20190100206Abstract: The present invention relates to a method to control a hybrid powertrain, comprising a combustion engine, an electric machine, a gearbox with input shaft and output shaft, wherein the combustion engine and the electric machine are connected to the input shaft. The method comprises the following steps: a) disconnecting the combustion engine from the input shaft with a coupling device, b) engaging a starting gear in the gearbox, which starting gear is higher than the gear at which the combustion engine's torque at idling speed is able to operate the input shaft, c) generating a torque in the input shaft with the electric machine, d) accelerating the electric machine, and e) connecting the combustion engine to the input shaft with the coupling device when the electric machine has reached substantially the same rotational speed as the combustion engine. The invention also relates to a hybrid powertrain and a vehicle.Type: ApplicationFiled: March 22, 2017Publication date: April 4, 2019Applicant: Scania CV ABInventors: Mats LIWELL, Mattias NILSSON, Fredrik SUNDÉN, Afram KOURIE
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Patent number: 10189478Abstract: A method for shifting in a vehicle (1) with a hybrid powertrain (2), the powertrain includes: a combustion engine (3), an electric machine (4), a gearbox (6) with an input shaft (10) and a main shaft (14), wherein the combustion engine (3) and the electric machine (4) are connected to the input shaft (10); and a lay shaft (16), via gear sets (50, 52 and 58, 60, 62) is connected to the input shaft (10) and the main shaft (14), so that they form a split gear unit (13) and a main gear unit (15).Type: GrantFiled: November 13, 2014Date of Patent: January 29, 2019Assignee: SCANIA CV ABInventors: Mattias Nilsson, Fredrik Sundén, Mats Liwell, Afram Kourie
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Publication number: 20180345782Abstract: The invention relates to a method, system, vehicle, and computer program product for gear shifting in a hybrid powertrain, that comprises an internal combustion engine; an electric machine; a gearbox; and an energy storage unit connected to the electric machine, and at least one control unit arranged in communication with the internal combustion engine, the electric machine, the gearbox and the energy storage unit. The method comprises the steps of: determining an energy level in the energy storage unit; determining an acceleration ability with a subsequent gear; determining a target engine speed for the internal combustion engine based on the energy level in the energy storage unit and the acceleration ability; and controlling the gear shifting based on the target engine speed.Type: ApplicationFiled: November 29, 2016Publication date: December 6, 2018Applicant: SCANIA CV ABInventor: Afram KOURIE
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Patent number: 9963151Abstract: A method to control a hybrid powertrain (2) in a vehicle, the powertrain including a combustion engine (3), an electric machine (4) and a gearbox (6) with an input shaft (10) and output shaft (18), wherein the combustion engine (3) and the electric machine (4) are connected to the input shaft (10). The method includes the steps of controlling the gearbox (6) to a neutral position; controlling the speed of the electric machine (4) to a predetermined speed, corresponding to a target speed for the input shaft (10) according to the next selected gear; engaging a gear in the gearbox (6); controlling the electric machine (4), so that the electric machine (4) accelerates or decelerates depending on a requested driving torque for the vehicle (1); detecting when a control signal for the electric machine (4) corresponds to a predetermined signal value; and controlling the electric machine (4) to the requested driving torque.Type: GrantFiled: November 13, 2014Date of Patent: May 8, 2018Assignee: SCANIA CV ABInventors: Mattias Nilsson, Fredrik Sundén, Mats Liwell, Afram Kourie
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Publication number: 20160264145Abstract: A method for shifting in a vehicle (1) with a hybrid powertrain (2), the powertrain includes: a combustion engine (3), an electric machine (4), a gearbox (6) with an input shaft (10) and a main shaft (14), wherein the combustion engine (3) and the electric machine (4) are connected to the input shaft (10); and a lay shaft (16), via gear sets (50, 52 and 58, 60, 62) is connected to the input shaft (10) and the main shaft (14), so that they form a split gear unit (13) and a main gear unit (15).Type: ApplicationFiled: November 13, 2014Publication date: September 15, 2016Inventors: Mattias NILSSON, Fredrik SUNDÉN, Mats LIWELL, Afram KOURIE
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Publication number: 20160264127Abstract: A method to control a hybrid powertrain (2) in a vehicle, the powertrain including a combustion engine (3), an electric machine (4) and a gearbox (6) with an input shaft (10) and output shaft (18), wherein the combustion engine (3) and the electric machine (4) are connected to the input shaft (10). The method includes the steps of controlling the gearbox (6) to a neutral position; controlling the speed of the electric machine (4) to a predetermined speed, corresponding to a target speed for the input shaft (10) according to the next selected gear; engaging a gear in the gearbox (6); controlling the electric machine (4), so that the electric machine (4) accelerates or decelerates depending on a requested driving torque for the vehicle (1); detecting when a control signal for the electric machine (4) corresponds to a predetermined signal value; and controlling the electric machine (4) to the requested driving torque.Type: ApplicationFiled: November 13, 2014Publication date: September 15, 2016Inventors: Mattias NILSSON, Fredrik SUNDÉN, Mats LIWELL, Afram KOURIE