Patents Assigned to Scania CV AB (publ)
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Publication number: 20250229785Abstract: A method of controlling operation of a vehicle is disclosed, wherein the vehicle comprises a propulsion system, wherein the method is performed by a control arrangement, and wherein the control arrangement is configured to operate the propulsion system in at least two modes of operation with differing energy conservation characteristics. The method comprises switching between the at least two modes of operation based on an obtained probability of a possible impending slowdown of a preceding vehicle. The present disclosure further relates to a computer program, a computer-readable medium, a control arrangement, and a vehicle.Type: ApplicationFiled: December 17, 2024Publication date: July 17, 2025Applicant: Scania CV ABInventors: Manne Held, Henrik Sandstedt
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Patent number: 12358486Abstract: A method is disclosed for changing an activation state of a power take-off (PTO) in a vehicle, where the activation state corresponds to either an activated state, where the PTO transfers a torque between the vehicle's power source for propelling the vehicle and an auxiliary load, or a deactivated state, where no torque is transferred by the PTO between the power source and the auxiliary load. The activation state of the PTO is changed by engaging or disengaging a clutch of the PTO. The method comprising, when the power source is connected to drive wheels of the vehicle, and the activation state of the PTO is to be changed, controlling the clutch to control a rate of change of torque transferred between the power source and the auxiliary load during the change of the activation state of the PTO based on at least one current operating condition of the vehicle.Type: GrantFiled: March 12, 2024Date of Patent: July 15, 2025Assignee: Scania CV ABInventors: Mikael Lindberg, Linus Stiernstedt
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Publication number: 20250222929Abstract: A method of controlling operation of a vehicle is disclosed, wherein the method is performed by a control arrangement, and wherein the vehicle comprises a propulsion system, wheel brakes, and an accelerator pedal. The method comprises, when an actuation state of the accelerator pedal is below a threshold state, controlling a braking power provided by at least one of the propulsion system and the wheel brakes based on map data representative of a road section on which the vehicle is/will be travelling. The present disclosure further relates to a computer program, a computer-readable medium, a control arrangement, and a vehicle.Type: ApplicationFiled: December 23, 2024Publication date: July 10, 2025Applicant: Scania CV ABInventors: Manne Held, Mikael Alenius, Oscar Flärdh
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Patent number: 12351072Abstract: A cooling system is disclosed for controlling the temperature of a battery within a temperature interval, the system comprising a chiller and a chiller line arranged in heat exchange with said chiller, a heat source and a high temperature line arranged in heat exchange with said heat source, a battery line arranged in heat exchange with the battery, a pump arranged to convey a cooling fluid in at least one of said lines, a condenser and a refrigeration circuit arranged in heat exchange with said condenser, wherein a working medium is arranged to, in operation, circulate in said refrigeration circuit, wherein a valve is arranged to selectively connect the chiller line into heat exchange with the battery line so as to provide cooling of the battery, and a valve is arranged to selectively connect the high temperature line for heat exchange with the battery line to heat the battery.Type: GrantFiled: September 27, 2019Date of Patent: July 8, 2025Assignee: Scania CV ABInventor: Ola Hall
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Patent number: 12337720Abstract: A battery module comprising a plurality of battery cell units, each one comprising: a battery cell having a first pole and a second pole, and a switch circuit, comprising a plurality of switches, and a switch controller arranged to control the switches of the switch circuit to enter either of a first state, in which the battery cell is connected in parallel with a neighboring battery cell, and a second state, in which the battery cell is connected in series with a neighboring battery cell. The battery module is configured to control the switching between the first and second states on a probabilistic basis.Type: GrantFiled: December 8, 2020Date of Patent: June 24, 2025Assignee: Scania CV ABInventor: Henrik Svärd
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Patent number: 12296815Abstract: 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: GrantFiled: October 27, 2020Date of Patent: May 13, 2025Assignee: Scania CV ABInventors: Mathias Björkman, Niklas Pettersson, Fredrik Sundén, Mikael Bergquist, Johan Lindström
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Publication number: 20250149910Abstract: The present application relates to a power supply circuit of a vehicle, which power supply circuit comprises a first side (A) comprising a power source (14), a first battery pack (12) and first power consumers (16), a second side (B) connected in series with the first side (A), the second side (B) comprising a second battery pack (18) and second power consumers (20), an overload current breaker (22) provided between the first and the second side, said overload current breaker (22) having a pre-determined threshold breaking current (IThreshold) value, at which value the circuit is broken; a controller (24) connected to said power source for regulating voltage from said power source (14), the controller (24) being provided with said threshold breaking current (IThreshold) value, the controller further being operatively connected to devices (26, 28) providing information related to a current (Ich) through said overload current breaker (22).Type: ApplicationFiled: February 16, 2023Publication date: May 8, 2025Applicants: SCANIA CV AB, MAN TRUCK & BUS SEInventors: Gunnar Ledfelt, Lukas Rydén, Mathias Eggeling
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Publication number: 20250136073Abstract: A method of controlling operation of a vehicle is disclosed, wherein the vehicle comprises an auxiliary braking system and a number of wheel axles each comprising wheels and wheel brakes controllable to brake the wheels, and wherein one or more of the number of wheel axles is a liftable wheel axle. The method comprises the step of controlling at least one of the one or more liftable wheel axles from a lifted position to a lowered position if the at least one liftable wheel axle is in the lifted position and a ratio between an estimated braking capacity of the auxiliary braking system and a current or impending braking need of the vehicle is below a first threshold ratio. The present disclosure further relates to a computer program, a computer-readable medium, a control arrangement, and a vehicle.Type: ApplicationFiled: October 16, 2024Publication date: May 1, 2025Applicant: Scania CV ABInventors: Daniel Ståhl, Martin Berglund, Jan Dellrud, Karl Vestgöte, Magnus Carlgren
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Publication number: 20250136076Abstract: A control arrangement and a method for deactivating an adaptive cruise control system. The method comprises, in response to a determination of risk of loss of functionality of the adaptive cruise control system while the host vehicle is decelerated by the adaptive cruise control system, determining whether the host vehicle may be braked by the service brake system; and, if so, activating a first failure mode during which the adaptive cruise control system is maintained active to decelerate the host vehicle until a deceleration demand is below a predetermined threshold. The method further comprises, when the deceleration demand is below the predetermined threshold, either ramping down the braking demanded by the adaptive cruise control system over a predetermined period of time and thereafter deactivating the adaptive cruise control system, or directly deactivating the adaptive cruise control system.Type: ApplicationFiled: October 10, 2024Publication date: May 1, 2025Applicant: Scania CV ABInventors: Alexander Stamp, David Karlsson
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Patent number: 12286937Abstract: A method of controlling inlet valves and exhaust valves of a cylinder of an internal combustion engine to obtain an engine braking effect is disclosed. The method comprises the steps of preventing at least one exhaust valve of the cylinder from closing completely during a plurality of successive intake, compression, expansion, and exhaust strokes of the cylinder, phase shifting control of at least one exhaust valve and regulating the amount of air being pumped through the cylinder by phase shifting control of at least one inlet valve of the cylinder. The present disclosure further relates to a computer program, a computer-readable medium, a control arrangement, an internal combustion engine, and a vehicle comprising an internal combustion engine.Type: GrantFiled: May 23, 2022Date of Patent: April 29, 2025Assignee: Scania CV ABInventors: Hans Göransson, Henrik Andersson, Pontus Johansson, Joakim Rodebäck, Andreas Dahl, Erik Höckerdal, Bengt Anderberg
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Patent number: 12286007Abstract: 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: GrantFiled: April 26, 2021Date of Patent: April 29, 2025Assignee: Scania CV ABInventors: Ola Hall, Martin Mohlin
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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