Patents Assigned to Scania CV AB (publ)
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Publication number: 20250108701Abstract: Control arrangement and method for reducing backlash in a vehicle, said vehicle comprising a first powertrain configured to provide propulsion torque to one or more first drive wheels of the vehicle, and a second powertrain configured to provide propulsion torque to one or more second drive wheels of the vehicle, wherein the first and second powertrains are mechanically separated from each other. The method comprises, when a requested net torque for the vehicle is within the deliverable torque of one of the first powertrain and the second powertrain, controlling the first powertrain to deliver a first torque to said one or more first drive wheels and the second powertrain to deliver a second torque to said one or more second drive wheels, the first torque and the second torque having opposite torque directions.Type: ApplicationFiled: September 25, 2024Publication date: April 3, 2025Applicant: Scania CV ABInventors: Daniel Ståhl, Magnus Carlgren, Martin Berglund, Mattias Hedberg
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Publication number: 20250100391Abstract: A method, performed by a control arrangement, for heating a powertrain and/or a subsystem of a vehicle. Said vehicle comprises an electrical machine configured to provide propulsion power to one or more drive wheels of the vehicle and/or power a power take-off load. The method comprises, when the electrical machine is disconnected from said one or more drive wheels of the vehicle and/or said power take-off load, controlling the electrical machine so as to oscillate between a first rotational speed and a second rotational speed to thereby generate heat.Type: ApplicationFiled: September 12, 2024Publication date: March 27, 2025Applicant: Scania CV ABInventors: Martin Berglund, Daniel Ståhl, Karl Vestgöte, Magnus Carlgren
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Patent number: 12246287Abstract: The present invention relates to a method for adaption of an exhaust treatment system arranged for treating an exhaust stream produced by an engine, where the exhaust treatment system includes at least a first additive dosage device, a first selective catalytic reduction catalyst arranged downstream of the first additive dosage device, a second additive dosage device arranged downstream of the first selective catalytic reduction catalyst, and a second selective catalytic reduction catalyst arranged downstream of the second additive dosage device. The method includes initiating an adaption of the second selective catalytic reduction catalyst, and controlling, during the adaption of the second selective catalytic reduction catalyst, the first additive dosage device to inject additive in accordance with at least one injection rule being designed for the adaption.Type: GrantFiled: January 12, 2021Date of Patent: March 11, 2025Assignee: Scania CV ABInventor: Johan Lundström
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Publication number: 20250074421Abstract: A control arrangement and a method for controlling travelling speed of a vehicle using a vehicle speed control system. The method comprises a step of, when the vehicle speed control system is expected to apply braking power using a service brake system and at least one of the one or more auxiliary brake systems of the vehicle while the vehicle travels an upcoming road section, predicting a future temperature profile for the service brake system based on a predetermined temperature model for the service brake system. The method further comprises a step of, when the predicted temperature profile demonstrates that the service brake system will reach a temperature above an upper temperature threshold, and optionally a first predefined criterion and/or a second predefined criterion is/are fulfilled, controlling the service brake system to reduce the vehicle speed.Type: ApplicationFiled: August 27, 2024Publication date: March 6, 2025Applicant: Scania CV ABInventors: Mikael Alenius, Manne Held, Elvedin Ramic, Alexander Stamp, Casper Johansson
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Patent number: 12240539Abstract: A control device and a method for enabling power steering of a vehicle in case of unintentional shutdown of a combustion engine of the vehicle are provided. The vehicle comprises, in addition to the combustion engine, a starter configured to crank the combustion engine and a hydraulic power steering system comprising a hydraulic pump configured to be driven by the combustion engine. The method comprises a step of, in response to an indication of need of power steering, activating the starter to crank the combustion engine so that the combustion engine drives the hydraulic pump. A computer program, a computer-readable medium and a vehicle are also provided.Type: GrantFiled: July 9, 2021Date of Patent: March 4, 2025Assignee: Scania CV ABInventors: Jonas Udd, Joachim Hagström
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Publication number: 20250058626Abstract: A method performed by a control arrangement for powering a vehicle, the vehicle comprising at least one first electric machine configured to provide a power to a first vehicle wheel, and at least one second electric machine configured to provide a power to a second vehicle wheel. The at least one first electric machine and the at least one second electric machine in the vehicle are interconnected by means of a hydraulic connection which enables the utilization of the available power from the electric machines by transferring excess power provided by one or more electric machines to a drive wheel or axle where additional power is required. The invention also relates also to a control arrangement, a vehicle comprising the control arrangement, and a computer program.Type: ApplicationFiled: August 5, 2024Publication date: February 20, 2025Applicant: Scania CV ABInventors: Daniel Ståhl, Magnus Carlgren, Joar Turesson
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Patent number: 12220968Abstract: A thermal management system for a vehicle is disclosed, wherein the vehicle comprises an occupant compartment and a propulsion system configured to provide motive power to the vehicle. The system comprises a propulsion coolant circuit configured to cool at least a portion of the propulsion system, a heating circuit configured to heat the occupant compartment, and a heat pump circuit comprising a first evaporator in the propulsion coolant circuit and a condenser in the heating circuit. The propulsion coolant circuit comprises a connecting conduit connecting the propulsion coolant circuit to the heating circuit at a position upstream of the condenser, and a first valve configured to control flow of coolant through the connecting conduit. The present disclosure further relates to a powertrain for a vehicle, as well as a vehicle.Type: GrantFiled: June 10, 2020Date of Patent: February 11, 2025Assignee: Scania CV ABInventors: Ola Hall, Martin Mohlin, Zoltan Kardos, Rickard Eriksson
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Publication number: 20250044368Abstract: A method for degradation diagnosis of an electrochemical cell, comprising: determining a first open circuit potential, relative to a preselected potential scale, for a positive electrode and determining a second open circuit potential, relative to the preselected potential scale, for a negative electrode; obtaining a first charge value and a second charge value by comparing the determined first and second open circuit potentials to respective reference curves of open circuit potential, relative to the preselected potential scale, as a function of charge for the corresponding electrode; arranging the first and the second reference curves on a common charge scale so that the obtained first charge value and the obtained second charge value are equal on said common charge scale; and based on the first and second reference curves, determining remaining capacity as the difference in charge between a first predefined potential limit and a second predefined potential limit.Type: ApplicationFiled: December 15, 2022Publication date: February 6, 2025Applicant: Scania CV ABInventors: Matthew LACEY, Matilda KLETT HUDSON
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Patent number: 12218326Abstract: 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: GrantFiled: March 16, 2021Date of Patent: February 4, 2025Assignee: Scania CV ABInventors: Martin Mohlin, Ola Hall
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Patent number: 12215638Abstract: The disclosure concerns a method for vibration reduction in a compression ignition four-stroke internal combustion engine. The internal combustion engine comprises exhaust and intake valves controlled by exhaust and intake camshafts. The method comprises, when operating the internal combustion engine below a threshold rotational speed, steps of: changing a timing of the exhaust camshaft to advance closing of the exhaust valve, and —changing a timing of the intake camshaft to delay opening of the intake valve.Type: GrantFiled: June 11, 2021Date of Patent: February 4, 2025Assignee: Scania CV ABInventors: Håkan Sarby, Andreas Dahl, Ola Jönsson, Fredrik Birgersson, Marcus Ahlin
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Publication number: 20250035024Abstract: A control device and a method for deriving an engine-out NOx concentration in an exhaust system comprising a SCR catalyst, a dosing device for dosing a reductant, a first NOx sensor arranged downstream of the dosing device and a second NOx sensor arranged downstream the SCR catalyst. The method comprises deriving engine-out NOx concentration based on a first concentration reading obtained from the first NOx sensor and a second concentration reading obtained from the second NOx sensor, said first concentration reading being obtained while the dosing device is in operation. An exhaust system as well as a vehicle comprising the control device are also provided.Type: ApplicationFiled: November 18, 2022Publication date: January 30, 2025Applicant: Scania CV ABInventor: Christer LUNDBERG
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Publication number: 20250033426Abstract: A four point link suspension for a vehicle, wherein the suspension comprises: a first side suspension spring, configured to absorb a vertical load; a second side suspension spring, configured to absorb the vertical load, wherein the springs are configured to be connected to a vehicle frame via a respective joint; a stabilization frame, comprising a first side link arm having a first ending and a second ending connected to the first side suspension spring via a second joint; a second side link arm and a second ending connected to the second side suspension spring via a second joint; and a torsion bar, connecting the side link arms, which side link arms are tapered towards the respective first ending.Type: ApplicationFiled: December 2, 2022Publication date: January 30, 2025Applicant: Scania CV ABInventor: Anders JOHANSSON
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Patent number: 12209520Abstract: A control device and a method for controlling an exhaust gas aftertreatment system comprising a diesel particulate filter is provided. The method comprises a step of, in response to a determination that a temperature of an exhaust gas entering the diesel particulate filter is equal to or below 325° C., controlling a NOx concentration of the exhaust gas entering the diesel particulate filter to be equal to or less than 600 ppm. An exhaust gas aftertreatment system as well as a vehicle comprising the control device are also described.Type: GrantFiled: January 20, 2022Date of Patent: January 28, 2025Assignee: Scania CV ABInventors: Björn Westerberg, Ulf Nylén, Astrid Simovits
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Patent number: 12194832Abstract: A thermal management system is disclosed configured to regulate the temperature of a number of vehicle components. The system comprises one expansion tank and two or more coolant circuits each configured to regulate the temperature of a vehicle component of the number of vehicle components. Each coolant circuit of the two or more coolant circuits comprises a heat exchanger configured to regulate the temperature of coolant in the coolant circuit, a coolant pump comprising a pump inlet, and a static line fluidly connecting the pump inlet to the expansion tank. The present disclosure further relates to a vehicle comprising a thermal management system.Type: GrantFiled: June 24, 2021Date of Patent: January 14, 2025Assignee: Scania CV ABInventors: Martin Mohlin, Ola Hall, Zoltan Kardos, Rickard Eriksson
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Patent number: 12196216Abstract: A compressor arrangement for a turbocharger is disclosed. The compressor arrangement comprises a compressor housing and a compressor wheel arranged to rotate in the compressor housing. The compressor housing comprises a compressor inlet duct, a ported shroud, and a recirculation channel comprising an inlet arranged downstream of the compressor wheel, an outlet arranged in the compressor inlet duct at a position upstream of ports of the ported shroud, and a valve configured to control the flow of air through the recirculation channel. The compressor arrangement further comprises a wall section protruding into the compressor inlet duct at a position upstream of the outlet of the recirculation channel. The present disclosure further relates to a turbocharger, an internal combustion engine, and a vehicle.Type: GrantFiled: September 30, 2022Date of Patent: January 14, 2025Assignee: Scania CV ABInventors: Magnus Lindgren, Christian Meinking, Erik Bodin-Ek
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Publication number: 20250012408Abstract: The disclosure concerns a fastening device configured for fastening a container to a vehicle. The fastening device comprises: a first band end and a second band end, a compression spring, an abutment for the compression spring, a tightening member, and an elongated element. The first band end, the second band end, the compression spring, and the abutment are arranged along a longitudinal axis of the elongated element. The abutment is displaceable by the tightening member along the longitudinal axis in a direction towards the first band end to compress the compression spring. The fastening device comprises a stop surface configured for preventing further displacement of the abutment when the abutment reaches a predetermined distance from the first band end.Type: ApplicationFiled: November 22, 2022Publication date: January 9, 2025Applicant: Scania CV ABInventor: Walace CHICUTA
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Publication number: 20250012668Abstract: The present disclosure relates to predicting and detecting an upcoming failure of a NOx sensor. In particular, the disclosure relates to a method for predicting an upcoming failure of a NOx sensor. The disclosure also relates to corresponding control arrangement and computer program, and to a vehicle comprising the control arrangement. The disclosure proposes a method for predicting an upcoming failure of a NOx sensor arranged. The method comprises estimating a noise level of an output signal of the NOx sensor. The estimation is performed after at least one sensor start and during at least one start-up time interval when an output signal level of the NOx sensor is settling towards a valid value. The method further comprises predicting an upcoming failure of the NOx sensor based on the estimated noise level exceeding a certain noise level during the at least one start-up time interval.Type: ApplicationFiled: November 18, 2022Publication date: January 9, 2025Applicant: Scania CV ABInventor: Peter LINDQVIST
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Publication number: 20250001990Abstract: A method to control a brake system in a vehicle, the vehicle comprising an auxiliary brake system configured to apply a brake force to at least one first wheel of the vehicle and a foundation brake system configured to apply a brake force to at least one second wheel of the vehicle. The method comprises, when a first brake force is or is to be applied to the vehicle by means of the auxiliary brake system and when an indication of an instability condition associated with a coming road section is detected initiating a transfer of at least a part of the first brake force applied to the vehicle by the auxiliary brake system to, instead, be applied by the foundation brake system prior to reaching the coming road section to overcome the detected instability condition, such that applied brake force may be distributed over additional wheels to increase stability.Type: ApplicationFiled: June 20, 2024Publication date: January 2, 2025Applicant: Scania CV ABInventors: Martin BERGLUND, Daniel STÅHL, Karl VESTGÖTE
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Publication number: 20250001986Abstract: The present invention relates to a method performed by a control arrangement for controlling braking of a vehicle comprising: a service brake system and at least one auxiliary brake system for applying a brake torque to at least driven wheels of the vehicle, driver maneuverable means for requesting brake torque from the service brake system, the method comprising, when a brake torque is requested by the driver, and when a temperature of a friction brake of the service brake system increases, or is expected to increase: reducing brake torque applied by the service brake system, and increasing brake torque applied by the at least one auxiliary brake system such that the total resulting brake torque corresponds to the driver requested brake torque. The invention also relates to a control arrangement, a computer program, a computer-readable medium and a vehicle comprising a control arrangement.Type: ApplicationFiled: June 21, 2024Publication date: January 2, 2025Applicant: Scania CV ABInventors: Alexander Stamp, Casper Johansson, Stefan Karlberg, Filip Larsson
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Patent number: 12180906Abstract: A method of diagnosing an operational performance of a combustion engine assembly is disclosed, the combustion engine assembly comprising a combustion engine, and an exhaust system. The exhaust system comprises a SCR catalyst and a NOx sensor arranged downstream of the SCR catalyst. The method comprises the steps of providing a first NOx value (v1) using the NOx sensor during a supply period (p1) of an exhaust additive, providing a second NOx value (v2) using the NOx sensor during a stop period (p2) of a supply of exhaust additive, and diagnosing the operational performance of the combustion engine assembly based on a ratio between the first and second NOx values (v1, v2). The present disclosure further relates to a computer program, a computer-readable medium, a control arrangement, a combustion engine assembly, and a vehicle.Type: GrantFiled: August 29, 2023Date of Patent: December 31, 2024Assignee: Scania CV ABInventor: Mikael Lundström