Abstract: A method and device for operating a dual clutch transmission connectable to an internal combustion engine provided in a vehicle includes providing a control unit for managing at least the internal combustion engine and the transmission, providing a prediction model including at least one simulated shift sequence for the transmission, predicting the time between a first power upshift/downshift and a second power upshift/downshift for the transmission by using the at least one prediction model, modifying at least one parameter for operating the transmission if the predicted time between the first power upshift/downshift and the second power upshift/downshift for the transmission is shorter than a predetermined time.

Abstract: A fuel injection system for supplying pressurised fuel to an internal combustion engine is provided. The fuel injection system includes a low-pressure hydraulic circuit, a fuel pump with a pumping element and an outlet valve for supply of pressurised fuel to a common rail, and an injector for delivering fuel for combustion from the common rail to the engine, wherein the fuel injection system further includes an isolating valve connected between the outlet valve of the fuel pump and the common rail, wherein the isolating valve is adapted such that the frequency of its seats making the mechanical contact with each other is lower compared to the frequency of the operation of the outlet valve of the fuel pump.

Abstract: A method is provided for controlling a driving distance between a host vehicle and a first vehicle driving in front of the host vehicle, the host vehicle driving at a driving speed and at the driving distance to the first vehicle. The host vehicle includes a system for controlling the driving distance and a fuel saving system, wherein the system for controlling the driving distance is adapted to retain the driving distance at not less than a preset minimum safety distance, and wherein the fuel saving system includes an automatic speed increasing function which in case of fulfillment of a set of conditions automatically increases the driving speed in order to utilise kinetic energy inherent in the host vehicle to save fuel.

Abstract: An aerodynamic device is arranged for mounting to a vehicle or a trailer for reducing its wind resistance. The aerodynamic device includes at least one sheet material arranged to be mounted to the vehicle/trailer and associated with a corresponding wall portion of the vehicle/trailer. Each wall portion has an outer surface and an inner surface and extends towards the rear of the vehicle/trailer. In a deployed first state, each sheet material is arranged to at least partly extend beyond a rearmost position of the wall portion. In a stored second state, each sheet material is arranged to be inserted such that is faces towards the inner surface. A vehicle or a trailer including the aerodynamic device is also provided.

Abstract: A method for reducing turbolag in a turbocharged internal combustion engine includes demanding torque for shifting the internal combustion engine from a stationary engine mode to a transient engine mode, closing an exhaust gas recirculation (EGR) valve during the transient engine mode, repositioning guide vanes of a Variable Geometry Turbine (VGT) turbo unit from a first position when in the stationary engine mode to a second position when in the transient engine mode, increasing a duration of overlapping of at least one inlet valve and at least one outlet valve provided in a cylinder head of the internal combustion engine from as first duration when in the stationary mode to a second duration when in the transient mode for increasing the amount of air flowing from an inlet manifold to an exhaust manifold and thereby increasing acceleration of a turbine of the VGT turbo unit.

Abstract: A vehicle suspension includes a pair of leaf springs arranged to extend longitudinally on opposed sides of a vehicle frame. Each leaf spring has a first end pivotally connected to the vehicle with a first bracket attached rigidly to the frame at a first position. A second end is connected to the vehicle frame with a spring shackle pivotably connected to a second bracket attached rigidly to the frame at a second position, in order to compensate for length changes of the leaf spring under load conditions. The suspension further includes an axle extending transversely of the vehicle frame which axle is mounted to each leaf spring at a position intermediate its first and second ends. At least an upper leaf of the leaf spring is a parabolic spring having a convex portion extending towards the frame, and the convex portion is located between the first end and the intermediate position.

Abstract: An exhaust system includes a first SCR catalyst and a second SCR catalyst positioned downstream of the first SCR catalyst. A first injector is provided upstream of the first SCR catalyst, and a second injector is provided upstream of the second SCR catalyst. The exhaust system further includes a gaseous ammonia supply device fluidly connected to the first injector for supplying gaseous ammonia to the exhaust gas by the first injector, and an ammonia-containing reductant reservoir fluidly connected to the second injector for supplying a fluid ammonia-containing reductant, such as urea, to the exhaust gas by the second injector. The first SCR catalyst has a smaller volume than the second SCR catalyst for a fast warm-up of the first SCR catalyst.

Abstract: The present invention relates to a method for achieving reduced emissions at cold start of an internal combustion engine having an exhaust gas after treatment system comprising at least one Diesel Oxygen Catalyst (DOC), at least one Diesel Particulate Filter (DPF) and a Selective Catalytic Reduction (SCR) unit, comprising the steps of: heating the DOC prior to cold starting said internal combustion engine, starting and controlling the internal combustion engine towards low NOx emission when said DOC has reached a predetermined temperature, optimizing the fuel consumption at a given total emission level when said DPF and SCR has reached a predetermined temperature.

Abstract: A vehicle suspension leaf spring assembly is arranged to be mounted in the longitudinal direction of the vehicle on opposite sides thereof. The leaf spring assembly has a first end, which is arranged for pivotal connection to a first bracket on the vehicle; and a second end, which is arranged for connection to a spring shackle on the vehicle. The leaf spring assembly is arranged to be connected to an axle extending transversely of the leaf spring assembly at a position intermediate the first and second ends of the leaf spring assembly. The leaf spring assembly includes two individual leaf springs arranged side-by-side with a predetermined spacing and extending between the first and second ends.

Abstract: A method is provided for controlling the temperature of a traction battery in a hybrid vehicle, where the hybrid vehicle includes an internal combustion engine and an electric motor for traction power. The method includes providing a first temperature regulating circuit for the internal combustion engine, providing a second temperature regulating circuit for the traction battery, heating the traction battery by an electrical heater provided in the second temperature regulating circuit in series with a pump, a radiator and the traction battery, transferring power to the electrical heater via a DC/DC converter from the electrical motor, which electrical motor is driven by the internal combustion engine, while the battery is below a predetermined temperature interval.

Abstract: A method for an exhaust after treatment system of an engine including at least one selective catalyst reaction (SCR), at least one clean up catalyst downstream from the SCR, a urea injector upstream of the SCR and a first NOx sensor downstream the clean up catalyst. The method includes the steps of injecting a predetermined amount of urea by the injector, providing a second NOx sensor between the SCR and the clean up catalyst, measuring the NOx content received by the first NOx sensor, measuring the NOx content received by the second NOx sensor, comparing the first and the second NOx content with each other, and reducing the predetermined amount of urea if the first NOx sensor measures a higher NOx content than the second NOx sensor.

Abstract: A method and device are provided for controlling disengagement of an automated vehicle master clutch arranged in a vehicle drivetrain between a vehicle propulsion unit and a step geared transmission. The method includes the steps of determining a first output torque of the propulsion unit prior to initiation of a master clutch disengagement procedure, computing a second output torque of the propulsion unit in dependence of at least the first output torque, and where the second output torque is closer to zero torque than the first output torque, initiating the master clutch disengagement procedure by initiating an oscillation in drive shafts by abruptly altering propulsion unit output torque from the first to the second output torque, and disengaging the master clutch when the oscillation has reached a first oscillation turning point. Benefits can include faster gear shifting and better comfort with maintained transmission durability.

Abstract: An engine arrangement includes an engine, a charge air cooler connected to an engine inlet side of the engine, an air bypass for bypassing the charge air cooler, and including an EGR system connected between engine outlet side and an engine inlet side of the engine via one or more EGR lines. The air bypass enters the EGR system at an air-bypass port of an EGR line for mixing air with exhaust gas at the engine outlet side of the EGR system and/or upstream of an EGR cooler. An engine arrangement can also comprise an engine, a charge air cooler connected via an air line to an engine inlet side of the engine, an air bypass for bypassing the charge air cooler, and including an EGR system connected between an engine outlet side and an engine inlet side of the engine via one or more EGR lines. A control device is provided for controlling an engine inlet temperature of an air/exhaust gas mixture by controlling a ratio of cooled/uncooled air and/or cooled/uncooled exhaust gas in the air/exhaust gas mixture.

Abstract: A method and a system for calibrating an estimated clutch characteristic curve of a dual-clutch vehicle transmission are provided. The method includes mechanically interconnecting a first input shaft with a second input shaft, whereby a transmission output shaft is disengaged; controlling, according to a first alternative, a regulating parameter of a first clutch regulator such that a first friction clutch is engaged with a first torque transmission capability, that a second friction clutch (initially is disengaged, and subsequently engaged; or according to a second alternative, that the second friction clutch is initially engaged, a regulating parameter of the first clutch regulator such that the first friction clutch is engaged with a first torque transmission capability, and that the second friction clutch subsequently disengaged; calculating a torque transmission capability of the second friction clutch; and adjusting an estimated clutch characteristic curve of the second friction clutch.

Abstract: A method and an arrangement for cleaning a particulate filter in a vehicle provided with an internal combustion engine is provided. The particulate filter is mounted in an operative position inside an exhaust muffler under normal operation of the engine. The method involves performing a cleaning process including disassembling and removing the particulate filter from a first end of the muffler; reversing and reassembling the particulate filter a cleaning position at the first end of the muffler; starting and operating the engine by controlling the engine speed according to a predefined cycle until a predetermined condition is fulfilled; and stopping the engine and returning the particulate filter to its operative position inside the exhaust muffler.

Abstract: A system and a method for operating an engine of a vehicle are provided wherein a transmission coupled to the engine has a freewheeling mode. The engine is switched off by setting the transmission into the freewheeling mode and interrupting fuel supply to the engine in the freewheeling mode depending on one or more operating conditions of the vehicle. A gear in the transmission is selected proactively depending on one or more operating actions of the vehicle anticipated to be required on or within a predefined time limit after restart of the engine.

Abstract: Road information data is enriched and a vehicle drive train is controlled on basis of this data. Based on vehicle position, data about possible routes which may be taken is collected from at least three sources (A, B, C). Data with the highest quality is chosen for controlling the drive train. When running, information about the traveled route is recorded and saved, thus providing a continuous update.

Abstract: A vehicle emission control system is configured to operatively receive exhaust gas from a combustion engine and includes an exhaust gas after treatment system (EATS) configured to operatively clean the received exhaust gas, a burner unit configured to operatively heat the received exhaust gas to a predetermined temperature before the exhaust gas is provided to the EATS, and a pump unit configured to operatively provide the burner unit with air to be used b the burner unit in a heating process. The pump unit is configured to be operatively propelled by exhaust gas, and the burner unit is arranged upstream the pump unit such that exhaust gas from the burner unit is operatively provided to the pump unit for propelling the pump unit.

Abstract: A turbocharger unit for an internal combustion engine having at least one exhaust line for the evacuation of exhaust gases from the combustion chamber of the engine and at least one inlet line for the supply of air to the combustion chamber is provided. The turbocharger unit includes a turbine which interacts with a compressor in order to extract energy from the exhaust-gas flow of the engine and pressurize the inlet air of the engine. The compressor is of the radial type and is provided with an impeller having backswept blades in which the blade angle between an imaginary extension of the center line of the blade between root section and tip section in the direction of the outlet tangent and a line connecting the center axis of the impeller to the outer tip of the blade is at least about 40 degrees. The ratio between the inlet diameter of the impeller and its outlet diameter lies within the range 0.50-0.62.

Abstract: A wheel hub unit includes a wheel hub, a hydraulic motor and at least one bearing for supporting the wheel hub and the hydraulic motor. The wheel hub unit comprises a first seal for protecting the at least one bearing from hydraulic oil from the hydraulic motor.