Patents Assigned to Scania CV AB
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Patent number: 11680509Abstract: Disclosed is a method for diagnosing a first exhaust treatment component for treatment of an exhaust gas stream comprising means for oxidizing nitric oxide into nitrogen dioxide. A first reduction catalytic converter is arranged upstream said means for oxidizing nitric oxide into nitrogen dioxide, and a second reduction catalytic converter is arranged downstream said means. A reagent is for reduction of nitrogen oxides in said first catalytic converter, and a first sensor measures an occurrence of nitrogen oxide downstream said means but upstream said second reduction catalytic converter. The method comprises: causing a supply of reagent upstream said first reduction catalytic converter to an extent exceeding the extent to which reagent is consumed by the first reduction catalytic converter, determining a first measure of the occurrence of reagent downstream said means for oxidizing, and diagnosing said means for oxidizing nitric oxide into nitrogen dioxide based on said first measure.Type: GrantFiled: November 13, 2020Date of Patent: June 20, 2023Assignee: Scania CV ABInventors: Mikael Lundström, Astrid Simovits
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Patent number: 11667194Abstract: A power take-off arrangement (1) for a vehicle (5) that includes an input shaft (7), a main transmission member (9), a main coupling device (11), a first power take-off unit (13), a second power take-off unit (17), a first coupling device (15), and a second coupling device (19). The first coupling device (15) and the second coupling device (19) are configured to connect, in an engaged state, a respective power take-off unit (13, 17) to the main transmission member (9). The first and second coupling devices (15, 19) are connected to the main coupling device (11) such that the main coupling device (11) is controlled to be in the engaged state when any one of the first and second coupling devices (15, 19) is in the engaged state.Type: GrantFiled: May 14, 2018Date of Patent: June 6, 2023Assignee: Scania CV ABInventors: Peer Norberg, Per Arnelöf, Daniel Petersen
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Patent number: 11661071Abstract: A method and control system for updating functionality of a vehicle are presented. The vehicle includes at least one vehicle internal system, at least one add-on system arranged in the vehicle after the vehicle is produced by a manufacturer, and at least one internal communication unit arranged for communication with at least one vehicle external communication unit. The method includes: receiving, using the at least one internal communication unit, information related to at least one functionality of the vehicle from the at least one vehicle external communication unit; and updating, based on the information related to at least one functionality of the vehicle, at least one functionality defined in an add-on interface, the add-on interface being arranged in the vehicle as an interface between the at least one vehicle internal system and the at least one add-on system, whereby updating of said at least one functionality is parameter-based.Type: GrantFiled: December 11, 2018Date of Patent: May 30, 2023Assignee: Scania CV ABInventors: Alexander Saers, Johan Aneros, Henrik Felixson
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Patent number: 11661087Abstract: Method, control unit, and target arrangement of a leading vehicle for triggering a follower vehicle, which is situated at a lateral distance from the leading vehicle, to coordinate its movements with the leading vehicle. The target arrangement comprises a target configured to be placed at a lateral distance from to the leading vehicle. The target is also configured to be recognized by at least one forwardly directed sensor of the follower vehicle.Type: GrantFiled: March 7, 2018Date of Patent: May 30, 2023Assignee: Scania CV ABInventors: Marcello Cirillo, Magnus Granström, Mattias Nilsson, Julien Bidot, Jiwung Choi, Rui Oliveira
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Publication number: 20230158883Abstract: A vehicle thermal management system is disclosed comprising a first and a second coolant circuit each comprising a coolant pump. The first coolant circuit comprises a coolant duct configured to conduct coolant flow through a portion of the first coolant circuit, and an expansion tank connected to the coolant duct. The system further comprises a first connecting conduit connecting the second coolant circuit to the coolant duct, and valve controllable between a first state in which the valve hinders flow of fluid through the first connecting conduit, and a second state in which the valve allows flow of fluid through the first connecting conduit. The present disclosure further relates to a vehicle comprising a vehicle thermal management system.Type: ApplicationFiled: April 26, 2021Publication date: May 25, 2023Applicant: Scania CV ABInventors: Ola HALL, Martin MOHLIN
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Patent number: 11649773Abstract: A control device and method for controlling a compression release brake arrangement is provided. The compression release brake arrangement comprises an exhaust valve actuator assembly, a first actuator valve and a second actuator valve. The method comprises controlling the first and second actuator valves to a first state in which one of the actuator valves is open and the other one is closed. The disclosure further relates to a computer program, a computer readable medium, as well as to a vehicle comprising the control device.Type: GrantFiled: June 10, 2020Date of Patent: May 16, 2023Assignee: Scania CV ABInventors: Hans Göransson, Erik Ersvik, Lars-Göran Kjellström, Mats Ekman, Erik Höckerdal, Joakim Sommansson
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Publication number: 20230143384Abstract: Disclosed is a method for use in a process of selective catalytic reduction (SCR) after-treatment of an exhaust gas of an exhaust gas stream, where the process comprises the reduction of nitrogen oxides of the exhaust gas stream through the use of a reducing agent derived from an additive. The disclosed method comprises: defining an integrand to be the difference between the rate of injection of the additive and the rate of evaporation of the additive to the reducing agent multiplied by a coefficient (s), wherein the value of the coefficient (s) is between zero and one; producing an integral controller output proportional to the integral of the integrand with time; requesting a countermeasure based on the integral controller output to counteract solid deposits derived from the additive.Type: ApplicationFiled: February 26, 2021Publication date: May 11, 2023Applicant: Scania CV ABInventors: David TEMPELMANN, Christer LUNDBERG, Tobias BRÄNNVALL, Johan LUNDSTRÖM
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Publication number: 20230145211Abstract: Disclosed is a cooling system comprising a cooling circuit with a deaeration device arranged in the cooling circuit for separation of air bubbles from coolant circulating therein. The deaeration device comprises a deaeration chamber having a coolant inlet connected to a feed pipe of the cooling circuit, a first coolant outlet connected to a coolant pump of the cooling circuit, and a second coolant outlet connected to an expansion tank via a static line. The deaeration chamber has a larger cross-sectional dimension than said feed pipe. The second coolant outlet is located in such a position in relation to the coolant inlet and the first coolant outlet that the coolant flow in the deaeration chamber between the coolant inlet and the first coolant outlet will move migrating air bubbles in the longitudinal direction of the deaeration chamber towards the second coolant outlet.Type: ApplicationFiled: May 6, 2021Publication date: May 11, 2023Applicant: Scania CV ABInventors: Martin MOHLIN, Ola HALL, Björn KYLEFORS, Zoltan KARDOS
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Patent number: 11643956Abstract: A method for determining a reference value of a presence of at least one substance (NOx) occurring in an exhaust gas stream of an internal combustion engine (101), wherein the at least one substance is subjected to exhaust treatment, the exhaust treatment being carried out in dependence on the reference value (Emref; Emref,1; Emref,2) When the internal combustion engine (101) is started: accumulating the occurrence (EmACC,1; EmACC,2) of the at least one substance (NOx) downstream from the exhaust treatment during a first period, and determining whether to redetermine the reference value (Emref; Emref,1; Emref,2) based on the accumulated occurrence (EmACC,1; EmACC,2) of the at least one substance (NOx).Type: GrantFiled: June 4, 2019Date of Patent: May 9, 2023Assignee: Scania CV ABInventor: Martin Lindell
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Publication number: 20230138661Abstract: Disclosed is a cooling system comprising: a first cooling circuit with a first coolant pump; a second cooling circuit with a second coolant pump; an expansion tank provided with an expansion chamber for accumulation of coolant, wherein the expansion chamber is connected to the second cooling circuit to allow the expansion chamber to receive coolant from the second cooling circuit; and a deaeration device arranged in the first cooling circuit for separation of air bubbles from the coolant circulating therein. The deaeration device is located at a lower position than the expansion tank and connected to said expansion chamber via a static line to allow air bubbles separated from the coolant in the deaeration device to migrate upwards in the static line towards the expansion chamber.Type: ApplicationFiled: May 6, 2021Publication date: May 4, 2023Applicant: Scania CV ABInventors: Martin MOHLIN, Ola HALL
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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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Publication number: 20230128939Abstract: A temperature control system for a vehicle, comprising a main circuit comprising a tubing in which there is provided a coolant, a main circuit pump configured to pump said coolant through the tubing in a first direction. Connected in parallel to the main circuit are first and second sub-circuits for cooling or heating of components connected thereto. In the sub-circuits there are provided first and second pumps that pump coolant through said sub-circuits from a first end to second end at which the respective sub-circuit is connected the main circuit. The first end is upstream the second end as seen in the first direction in the first circuit, and the first end of the first sub-circuit and the first end of the at least one second sub-circuit are joined to a common tubing section which in its turn is connected to the tubing of the main circuit.Type: ApplicationFiled: March 16, 2021Publication date: April 27, 2023Applicant: Scania CV ABInventors: Martin MOHLIN, Ola HALL
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Patent number: 11635261Abstract: A cooling arrangement for an electric machine (2) and at least one further component (4, 5) of an electric power unit: The cooling arrangement comprises an oil circuit (16), an oil pump (46) circulating oil to the electric machine (2), a first coolant circuit (6) configured to cool the further component (5) of the electric power unit, and coolant radiator arrangement (8a, 8b) in which the coolant in the first coolant circuit (6) is cooled by air, The oil circuit (16) comprises an oil radiator (46), an oil radiator fan (47) configured to provide an adjustable air flow through the oil radiator (46) and a heat exchanger (15) in which heat is transferred between the coolant in the first coolant circuit (6) and the oil in the oil circuit (16).Type: GrantFiled: May 3, 2018Date of Patent: April 25, 2023Assignee: Scania CV ABInventor: Ola Hall
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Patent number: 11619181Abstract: The disclosure concerns variable valve timing of a four-stroke ICE. The ICE comprises: an exhaust valve and an intake valve an exhaust camshaft an intake camshaft and a cylinder arrangement. The cylinder arrangement comprises a combustion chamber a cylinder bore and a piston. The control arrangement is configured to: perform a first sequence of changes in the timings of the exhaust and intake camshafts in order to arrive from a first camshaft timing setting at a second camshaft timing setting based on a first current maximum cylinder pressure within the combustion chamber around top dead centre fire and/or around to dead centre gas exchange.Type: GrantFiled: October 1, 2021Date of Patent: April 4, 2023Assignee: Scania CV ABInventors: Andreas Dahl, Erik Lind, Christopher Ringström
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Patent number: 11613175Abstract: The invention relates to an indoor safety device for a liquefied fuel gas system, the system comprising a storage device storing liquefied fuel gas; a vent member arranged in fluid communication with the gas inside the storage device; and a safety valve arranged to evacuate gas when the pressure inside the storage device exceeds a predetermined first value, the safety device comprising: a vent coupling; a pressure relief valve arranged downstream of the vent coupling; and a conduit for conveying gas, adapted to be connected to the pressure relief valve, the safety device being removably connected to the system by connecting the vent coupling to the vent member, wherein the pressure relief valve is configured to release gas when the pressure inside the storage device exceeds a predetermined second value, lower than the first value.Type: GrantFiled: November 27, 2018Date of Patent: March 28, 2023Assignee: Scania CV ABInventors: Marcus Gralde, Mathias Jensen, Linda Classon
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Patent number: 11608772Abstract: A pre-chamber arrangement (100) for a gas engine (1), including a pre-chamber body (20) accommodating a volume (30); and a supply device (50) for supplying a gaseous medium (52) into the pre-chamber volume (30); wherein the pre-chamber body (20) has a bottom portion (22) with channels (40) for allowing gas to flow between the pre-chamber volume (30) and a main combustion chamber (10) of the gas engine (1). Each channel (40) extends along a channel axis (C) from an inner opening (42) facing the pre-chamber volume (30) to an outer opening (44) configured to face the main combustion chamber (10). The bottom portion (22) has a curved outer surface (24). The channels (40) are obliquely arranged in relation to a radius (r) of the bottom portion (22). The bottom portion has flat surfaces (46) surrounding the outer openings of the channels.Type: GrantFiled: February 28, 2022Date of Patent: March 21, 2023Assignee: Scania CV ABInventors: Svante Lejon, Pål Axelsson
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Patent number: 11608606Abstract: A method (400) and a control unit (210) for ground bearing capacity analysis. The method (400) steps include determining (401) a shape of the terrain segment (130) ahead of a vehicle (100), based on sensor measurements; predicting (402) a distance between a sensor (120) of the vehicle (100) and the ground (110) at the terrain segment (130), before the vehicle (100) moves into the terrain segment (130); measuring (403) the distance between the sensor (120) of the vehicle (100) and the ground (110) when the vehicle (100) has moved into the terrain segment (130); and determining (404) that the terrain segment (130) is to be avoided due to insufficient bearing capacity when the predicted (402) distance between the sensor (120) and the ground (110) exceeds the measured (403) distance between the sensor (120) and the ground (110). Also, a method (600) and control unit (210) for route planning of the vehicle (100) are described.Type: GrantFiled: January 15, 2018Date of Patent: March 21, 2023Assignee: Scania CV ABInventors: Mattias Nilsson, Marco Trincavelli, Samuel Malinen, Magnus Granström, Julien Bidot, Marcello Cirillo
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Patent number: 11592834Abstract: A method for replacing a first module (30, 40) of a vehicle (1) with a new module (30, 30?, 40). The vehicle (1) includes: at least one drive module (30); and at least one functional module (40). The vehicle (1) has a unique vehicle identity. The method includes: setting (s101) the vehicle (1) into a maintenance mode indicating that the vehicle (1) is not available for operation; and preparing (s102) the vehicle (1) for physical disconnection of the first module (30, 40); when the first module (30, 40) has been physically disconnected from the vehicle (1) and the new module (30, 30?, 40) has been physically connected to the vehicle (1): establishing (s103) an electrical connection between the new module (30, 30?, 40) and the vehicle (1); assigning (s104) the new module (30, 30?, 40) the unique vehicle identity of the vehicle (1); setting (s105) the vehicle (1) into an operational mode; and verifying s106) the electrical connection of the new module (30, 30?, 40).Type: GrantFiled: April 29, 2019Date of Patent: February 28, 2023Assignee: Scania CV ABInventors: André Claesson, Robert Sjödin, Linus Ährlig, Sami Teppola, Mikko Kallio, Tomas Skeppström, Morgan Colling
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Patent number: 11593089Abstract: A method and control unit for configuring an add-on interface of a vehicle are presented. The vehicle includes at least one vehicle internal system, at least one add-on system arranged in the vehicle after manufacture, and at least one internal communication unit. The method includes receiving information related to at least one node of the at least one add-on system. The method also includes creating, based on the received information, a definition of at least one signaling used by the at least one node, and also configuring, by using the definition of the at least one signaling used by the at least one node, an add-on interface. The add-on interface is arranged in the vehicle as an interface between the at least one vehicle internal system and the at least one add-on system.Type: GrantFiled: December 11, 2018Date of Patent: February 28, 2023Assignee: Scania CV ABInventors: Alexander Saers, Johan Aneros, Henrik Felixson, Simon Wretblad, Carl Blumenthal, Andreas Borg
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Patent number: 11591940Abstract: The invention relates to an emissions control device for a combustion engine aftertreatment arrangement, the emissions control device comprising: a housing configured for accommodating an emissions control substrate; and at least one first opening in the housing, which at least one first opening is configured for receiving a threaded assembling element, which threaded assembling element is configured for assembly of the emissions control device in a cavity of the aftertreatment arrangement. The emissions control device further comprises at least one second opening in the housing, wherein the at least one second opening is provided with a thread, configured for receiving a threaded disassembling element, which threaded disassembling element is configured for disassembly of the emissions control device from the cavity of the aftertreatment arrangement. The invention further relates to a combustion engine aftertreatment arrangement for a vehicle and a method for disassembling an emissions control device.Type: GrantFiled: April 21, 2020Date of Patent: February 28, 2023Assignee: Scania CV ABInventors: Gustav Jonsson, Amir Halilovic, Oskar Larsson