Abstract: A method of operating a compressed air system of a vehicle is disclosed. The compressed air system comprises a purge valve controllable to an open state to vent air from the compressed air system at a location between an air compressor and an air processing element. The method comprises the step of controlling the purge valve to the open state if data is indicative of at least one of a preceding, an ongoing and an upcoming accumulation of matter in at least one component of the compressed air system and maintaining the purge valve in the open state until the air pressure in the compressed air system declines below a threshold pressure. The present disclosure further relates to a computer program, a computer-readable medium, a control arrangement, a compressed air system, and a vehicle.

Abstract: A coolant tank for a battery module is disclosed, wherein the coolant tank is configured to accommodate coolant in an inner volume delimited by a number of wall segments of the coolant tank, wherein one wall segment of the number of wall segments forms a number of recessed formations each comprising an outer surface delimiting the inner volume of the coolant tank and an inner surface delimiting a cell compartment for accommodating a battery cell. The present disclosure further relates to a battery module, a battery pack, and a vehicle.

Abstract: An oil system configured to supply oil to a transmission and an electrical machine of a vehicle powertrain is provided. The oil system comprises a mechanical pump configured to transfer oil to a first supply conduit of the oil system. The oil system further comprises a second supply conduit configured to supply oil to the transmission, and a third supply conduit configured to supply oil to the electrical machine. The second and third supply conduits are fluidly connected to the first supply conduit. The oil system further comprises a controllable valve configured to control an amount of oil supplied to the electrical machine via the third supply conduit through control of oil pressure distribution between the second supply conduit and the third supply conduit. A control device and a method for controlling oil supplied to the electrical machine are also provided.

Abstract: A method for controlling a permission to crank an engine is presented, the engine comprising a gas fuel system comprising: one or more controllable valves to provide fuel to a regulator at an upstream pressure (P2); the regulator arranged to regulate the upstream pressure (P2) of the fuel down to a lower working pressure (P3); a low pressure valve arranged downstream of the regulator; and a working pressure sensor arranged at the engine. The method comprises: closing the low pressure valve; controlling at least one of the controllable valves such that the gas fuel system is pressurized upstream of the low pressure valve; opening the low pressure valve; monitoring, by use of the working pressure sensor, an increase of the working pressure (?P3) after the opening of the low pressure valve; and controlling a permission to crank the engine based on the monitored increase of the working pressure (?P3).

Abstract: A control arrangement and a method for controlling vehicle speed of a vehicle using a cruise control system are provided. The vehicle comprises a power take-off connected to a powertrain of the vehicle. The method comprises a step of, in response to a determination that the power take-off is subjected to a load, predicting future braking torque resulting from the power take-off load. The method further comprises a step of determining a planned driving strategy for an upcoming road section taking into account the predicted future braking torque. The method further comprises controlling the powertrain in accordance with the planned driving strategy, thereby controlling vehicle speed of the vehicle.

Abstract: The present application relates to a method of handling isolation faults in a battery operated high voltage electric system for propelling a vehicle, the system comprising a plurality of propulsion battery packs and at least one electric machine connected to said plurality of propulsion battery packs, the method comprising performing isolation measurement of the system when in operation, if an isolation fault is detected in the system, then disconnecting all propulsion battery packs; measuring isolation resistance between a plus side of each battery pack and ground and measuring isolation resistance between a minus side of each battery pack and ground; if the measured resistance in a battery pack is above a pre-determined value, re-connecting that battery pack, and if the measured resistance is below a pre-determined value in a battery pack, maintaining that battery pack disconnected.

Abstract: The disclosure relates to a method performed by a control arrangement for controlling a drivetrain of a vehicle: obtaining sensor data, wherein the sensor data is at least indicative of vehicle characteristics and road characteristics of the vehicle, activating a paver mode of the drivetrain, if it is detected that the vehicle is moving in a longitudinal direction and is coupled to and being moved by a second vehicle.

Abstract: A method of estimating an operational aspect of an internal combustion engine is disclosed, wherein the engine comprises a crankcase enclosing at least part of a crankcase volume, a crankcase ventilation outlet connected to the crankcase volume, and a gas cleaning assembly comprising an oil separator unit and a pump unit configured to pump gas from the crankcase volume to the oil separator unit via the crankcase ventilation outlet. The method comprises the steps of obtaining data indicative of a pumping rate of gas pumped by the pump unit and estimating the flow rate of gas through the crankcase ventilation outlet based on the data. The present disclosure further relates to a computer program, a computer-readable medium, a control arrangement, an internal combustion engine, and a vehicle.

Abstract: An exhaust treatment system is disclosed comprising a filter structure arranged downstream of a dosing arrangement to interact with particles in an exhaust stream created by a supply of additive into the exhaust stream and a transformation of the additive when flowing through the exhaust treatment system. The filter structure has a cross section area A in inches2 and a length L in inches resulting in an area to length ratio A/L having a value of at least 17 inches; A/L?17 inches, and has an opening degree such that: the particles are caused to interact with the filter structure, thereby being at least partly captured and removed from the exhaust stream; and accumulation of soot and ash created by the combustion, which would affect the interaction of the filter structure and the particles, is at least partly avoided.

Abstract: An exhaust treatment system for treating an exhaust stream of a combustion engine is presented. An reduction catalyst arrangement is arranged downstream of a dosing arrangement and comprising a first selective catalytic reduction (SCR) catalyst for reduction of nitrogen oxides in a first temperature interval, and a second SCR catalyst downstream of the first SCR catalyst for reduction of nitrogen oxides in a second higher temperature interval; wherein the first SCR catalyst has an opening degree such that particles in the exhaust stream created by the supply of additive and a transformation of the additive when flowing through the exhaust treatment system interact with the first SCR catalyst, whereby (i) particles are captured and removed by the first SCR catalyst and (ii) accumulation of soot and ash created by the combustion, which affect the interaction of the first SCR catalyst and the particles, is reduced or avoided.

Abstract: 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.

Abstract: The present disclosure relates to a method for determining an adverse condition of a powertrain of a vehicle. According to a first aspect, this disclosure proposes a method for determining an adverse condition of a powertrain of a vehicle and comprising one or more shafts. The method comprises determining angular displacement between angular positions of one or more shafts of the powertrain at individual points along the powertrain. The method further comprises determining, based on the monitored angular displacement, an adverse condition of one or more parts of the powertrain. The method further comprises performing an action based on the determined adverse condition. The disclosure also relates to corresponding sensor arrangement and computer program, and to a vehicle comprising the sensor arrangement.

Abstract: The present disclosure relates to determining a following distance, between a vehicle and a vehicle travelling ahead. According to a first aspect, the disclosure relates to a method that comprises obtaining an amount of energy required to propel the vehicle along the upcoming road as a function of following distance to the vehicle travelling ahead and predicting, based on brake actuation performed by the vehicle during a previous time period, one or more driving disadvantages that will be caused by braking along an upcoming road as a function of the following distance. The method further comprises determining the following distance, based on the obtained amount and on the predicted driving disadvantages caused by braking along the upcoming road. The disclosure also relates to a corresponding control arrangement and computer program, and to a vehicle comprising the control arrangement.

Abstract: A method of controlling an internal combustion engine is disclosed, the internal combustion engine comprising at least two cylinders, wherein each cylinder comprises at least one fuel injector configured to inject fuel into the cylinder, wherein the method comprises controlling the fuel injection performed by the fuel injectors into the cylinders based on an estimate of a residual gas imbalance between the at least two cylinders. The present disclosure further relates to a computer program product, a control arrangement, an internal combustion engine, and a vehicle.

Abstract: 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.

Abstract: A method is provided for controlling a speed of a vehicle using a Pulse and Glide (PnG) operation whereby the speed of the vehicle is controlled about a reference speed. The PnG operation comprises a pulse-phase during which the speed of the vehicle is increased to a first speed, higher than the reference speed, followed by a glide-phase during which the speed of the vehicle is allowed to decrease to a second speed, lower than the reference speed. When the PnG operation is being carried out and a speed reduction operation is commenced to decrease the speed lower than the reference speed, the method comprises adjusting the PnG operation such that the speed reduction to the decreased speed is carried out immediately following a speed increase in the pulse-phase to at least the first speed, wherein no propulsive torque is applied during the speed decrease.

Abstract: A method and a control arrangement for determining the status of a primary fluid tank or one or more secondary fluid tanks, each of the fluid tanks being arranged to contain a fluid or a mixture of fluids available in liquefied form and vaporised form and be connected to a second pressurized fluid conduit arrangement. The control arrangement determines a pressure drop (?p) associated with the fluid flow through the second pressurized fluid conduit arrangement. When the pressure drop (?p) exceeds a threshold, the control arrangement blocks the fluid flow from one of the fluid tanks to the second pressurized fluid conduit arrangement. Based on a subsequently determined pressure drop (?p), the control arrangement determines whether said one of the primary and secondary fluid tanks is empty of liquefied fluid.

Abstract: A control device and a method for controlling vehicle speed are provided. The method comprises determining a maximum allowable vehicle speed profile for an upcoming road section comprising an event expected to require a reduction of vehicle speed. The method further comprises determining a desired vehicle speed profile to reach a minimum point of the determined maximum allowable speed profile while avoiding vehicle speeds above the determined maximum allowable vehicle speed profile. The method further comprises simulating a vehicle speed profile for a first brake mode, and when the simulated vehicle speed profile for the first brake mode fulfils at least a first predefined criterion, braking the vehicle in accordance with the first brake mode.

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: A fuel injector nozzle (9) is disclosed. The nozzle (9) comprises a nozzle tip (9?) comprising an inner surface (39) and an outer surface (41). The nozzle (9) further comprises a number of fuel injection holes (11) each forming an inlet opening (31) at the inner surface (39) and an outlet opening (32) at the outer surface (41). At least one fuel injection hole (11) has a geometrical centre line (c1) being curved along at least a first portion (p1) of the at least one fuel injection hole (11). The radius of curvature (r1) of the geometrical centre line (c1) increases as seen in a direction (d1?) from the inlet opening (31) towards the outlet opening (32). The radius of curvature (r1) increases continuously along the full first portion (p1) of the at least one fuel injection hole (11) as seen in the direction (d1?) from the inlet opening (31) towards the outlet opening (32). A fuel injector (1), an internal combustion engine (40), and a vehicle (2) are also disclosed.