Abstract: 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.

Abstract: 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.

Abstract: 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).

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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).

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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).

Abstract: 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.

Abstract: An arrangement for cylinder detection in a four-stroke internal combustion engine is disclosed. The arrangement comprises a first disc connected to a crankshaft, the first disc comprising a first mark (M11-M13) within each an interspace angle (?), and a second disc connected to a camshaft and comprising one second mark (M21-M26) per number of cylinders. The first mark (M11-M13) is arranged on a first disc, or the plurality of first marks (M11-M13) are arranged in relation to each other on the first disc, and the second marks (M21-M26) are arranged in relation to each other on the second disc such that for each interspace angle (?) the relevant first mark (M11-M13) is detectable by a first sensor and the relevant second mark (M21-M26) is detectable by a second sensor at different relative rotational positions between the first disc and the second disc.

Abstract: A method for propelling of a vehicle comprising a power train with an electric motor connected to a location in the vehicle intended for mounting of an energy supply unit intended for driving of the electric motor during normal operating conditions of the vehicle is described. The method comprises the steps of: connecting an electric power source to a power connection element mounted on the vehicle and being connected to the electric motor and to the location, disconnecting the location in order to accomplish a direct connection between the power connection element and the electric motor and propelling the vehicle by means of the electric motor powered by electricity from the electric power source. A method for manufacturing of a vehicle comprising a power train with an electric motor and a vehicle comprising a power train with an electric motor are also described herein.

Abstract: The disclosure concerns an internal combustion engine comprising an exhaust camshaft, an intake camshaft, a turbocharger, and a control system. The turbocharger comprises a compressor. A timing of the exhaust camshaft and a timing of the intake camshaft are controllable by the control system, which is configured to: store a compressor map related to the compressor, store a reference area within the compressor map, and determine at least two parameters. In response to the at least two parameters indicating that a current operational point of the compressor is outside the reference area, the control system changes the timing of the exhaust camshaft to advance closing of the exhaust valve, and the timing of the intake camshaft to delay opening of the intake valve.

Abstract: A method and control unit for configuring an add-on interface of a vehicle are presented. The vehicle comprises at least one vehicle internal system, at least one add-on system, the add-on system being 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 comprises: receiving, using the at least one internal communication unit, configuration information related to at least one sensor of the vehicle from the at least one vehicle external communication unit; and configuring, based on the configuration information, how at least one sensor signal Ssensor from the at least one sensor is to be processed by 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.

Abstract: A thermostat device (8) for a cooling system in a vehicle. The device (8) includes a thermostat housing (15) enclosing a movably arranged valve body (16, 20, 34, 44). The valve body is configured to distribute coolant from a thermostat chamber (15a) to a radiator bypass line (9) and/or a radiator (11) in dependence on the position of the valve body. The device (8) has a first thermal expansion element (31) providing a first stroke of a valve body (16, 20, 34, 44) in response to the temperature of the coolant in a the pilot chamber (14a), and a second thermal expansion element (32) providing a second stroke of the valve body (16, 20, 34, 44) in response to the temperature of the coolant in the thermostat chamber (15a) such that the valve body (16, 20, 34, 44) is moved to a position defined by the strokes from the thermal expansion elements (31, 32). The pilot chamber (14a) has an outlet passage (14b) for directing coolant from the pilot chamber (14a) to the thermostat chamber (15a).

Abstract: A pre-chamber arrangement (100) for a gas engine (1), including a pre-chamber body (20) accommodating a volume (30); and an inlet passage (40) with an inlet port (42), for supplying a gaseous medium (50) into the pre-chamber volume (30); the pre-chamber volume (30) extends in a longitudinal direction (L) between a top end (32) and a bottom end (34); the pre-chamber volume (30) is configured to accommodate an end of a spark plug (60) at the top end (32) and at the bottom end (34), the pre-chamber body (20) has openings (26) for allowing gas to flow between the pre-chamber volume (30) and a main combustion chamber (10) of the gas engine (1); the inlet port (42) is positioned, at a distance (D) from the top end (32) of the pre-chamber volume (30), in the longitudinal direction (L), such that a volume of residual gases is trapped at the top end of the pre-chamber volume when the gaseous medium is supplied into the pre-chamber volume during an intake stroke.