Abstract: A method and a vehicle cruise control system performing the steps of driving with the cruise control active and set to maintain a set target speed, registering a first position when driving in an uphill slope of a hill where vehicle retardation has decreased vehicle speed to a first speed below the set target speed and where the retardation has decreased to zero or acceleration has just started in order to increase speed to the set target speed, registering a desired speed in a second position downhill of the crest at a first distance after the crest, based on the desired speed calculating a minimum speed at the crest with which the vehicle has to pass the crest in order to be able to reach the desired speed with zero fuel consumption during the first distance, controlling speed between the first position and the crest so that the vehicle reaches the minimum speed when passing the crest.

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: A multi-clutch transmission for a motor vehicle with a prime mover has a main transmission, a range section and an output shaft, the main transmission including one input shaft, a main shaft and a main countershaft, the main shaft being rotationally fixed with a range input shaft of the range section, the range section including a range main shaft that is rotationally fixed with the output shaft, a range countershaft, range gearwheels that can selectively transfer power from the range input member to the range countershaft and on to the range main shaft, and range clutches, the multi-clutch transmission including a by-passing torque path in which power can be transferred when the range section is shifted, and where the by-passing torque path includes a by-passing clutch that selectively can rotationally lock the main countershaft to the range countershaft.

Abstract: A transmission includes a main gearbox and a power take off unit, wherein the power take off unit can be engaged with and disengaged from the main gearbox through an engagement mechanism having at least a first position engaging the main gearbox and the power take off unit and a second position disengaging the power take off unit from the main gearbox, wherein the power take off unit is provided with at least one lubricant inlet. The engagement mechanism includes a valve member and when the engagement mechanism is positioned in its second position, the valve member blocks the lubricant inlet, thereby preventing lubricant from flowing through the lubricant inlet into the power take off unit. When the engagement mechanism is positioned in its first position, the lubricant inlet is open and lubricant can flow through the lubricant inlet into the power take off unit.

Abstract: A method is provided to control a drivetrain of a vehicle, especially a utility vehicle, wherein the drivetrain includes an engine with a cooling system. The cooling system includes a fan. The cooling system and the drivetrain are controlled by an electronic control unit (ECU). The ECU has access to a navigation system with topographic data. The method includes determining a topology of an upcoming route of the vehicle, estimating the load of the engine dependent of the topology of the upcoming route, estimating a temperature variation of the cooling system during the upcoming route, and controlling the drivetrain dependent on the estimated temperature variation, such that an actual temperature of the cooling system is kept below a temperature threshold value during the upcoming route of the vehicle. The temperature threshold value is dependent on a temperature at which said fan is activated.

Abstract: A method and system for controlling a powertrain in a vehicle includes steps including registering a road condition. If the registered road condition corresponds to normal road conditions then a first gear selection control algorithm is used intended for driving the vehicle in a normal mode corresponding to the conditions on an ordinary road. If the registered road condition corresponds to soft surface road conditions then a second gear selection control algorithm is used intended for driving the vehicle in a soft surface mode corresponding to the conditions on an soft surface road. In this way, a vehicle can be adapted to be provided with an AMT to work in a satisfactorily way under an increased diversity of conditions.

Abstract: A valve mechanism for an internal combustion engine is operable to selectively open and close a gas exchange valve to accomplish an engine brake during an engine brake mode of an engine. The valve mechanism includes a cam follower in biased abutment against a gas exchange cam element for actuation of a rocker arm connected to the gas exchange valve.

Abstract: An adaptive cruise control system for a motor vehicle includes a forward looking object detecting arrangement for simultaneously detecting several target objects moving in the predicted path and adjacent paths of the equipped vehicle. The detecting arrangement is arranged to continuously monitor velocity and distance to each of the target objects, and a processing arrangement processes signals from the detecting means to provide information of distance to and relative speed of vehicles travelling in front of the equipped vehicle.

Abstract: A powershift transmission in a motor vehicle is arranged between a prime mover and driven wheels of the motor vehicle for transmission of propulsive power and selection of different gear speed ratios. The powershift transmission includes at least two factional clutches for alternatively engaging at least two input shafts, a main transmission, a range section and an output shaft. A countershaft in the powershift transmission is rotationally connectable to the output shaft in order to establish a by-pass torque path, passing by the range section, and in which propulsive power can be transferred when the range section is gear shifted between different range speed ratios.

Abstract: A flow control system for a fuel injector for an internal combustion engine is provided and includes an inlet port, an outlet, a return port, a 2-way control valve including a control valve member, a shuttle valve and a main valve. The control valve includes a first seat, a first resilient arrangement configured to force the control valve member towards the seat so as to close the control valve, and a first abutment that limits the lift of the control valve member away from the first seat. The first seat of the control valve is slidably arranged in the shuttle control chamber. An end stop for the first seat is provided such that the pressure in a shuttle control chamber tends to move the first seat towards the end stop. The first seat, upon its mechanical contact with a valve member is able to transmit at least a part of the force of the resilient means onto a shuttle valve body in the opening direction of the shuttle valve.

Abstract: A device for controlling a gas flow through a passage includes a plurality of pivotable gas flow control vanes. The pivot axes of a first and a second adjacent vane are spaced so that a trailing edge of the first vane overlaps a leading edge of the second vane when the first and second adjacent vanes are positioned in a first mutual end state for substantially restricting the gas flow through the passage. The second vane includes a recess with such a shape that the trailing edge of the first vane is at least partly received in the recess when the first and second adjacent vanes are positioned in the first mutual end state.

Abstract: A transmission includes an input shaft, a main shaft, a countershaft, and an oil pump. The input shaft, the main shaft and the countershaft are provided with gearwheels in order to enable torque transfer in a plurality of forward and backward gear speeds. The oil pump is provided with a freewheel mechanism, which includes an oil pump driveshaft, a first pump drive gearwheel and a first and a second freewheel arranged upon the oil pump driveshaft. Both the first and the second freewheel can transfer torque to the oil pump drive shaft in one and the same direction. The first freewheel is in drive connection with the countershaft and the second freewheel is connected to the first pump drive gearwheel, which meshes with a first gearwheel coaxial with the main shaft and which first gearwheel transfers torque in at least one of the forward or backward gear speeds.

Abstract: A dual clutch transmission includes a first and a second input shaft provided with a first and second input arrangement, respectively, a centre shaft, a countershaft, and a first and a second primary gear step. The first and second input shaft are coaxially arranged with the centre shaft and can transfer torque from the first and second input means to the countershaft via the first and the second primary gear step. The first primary gear step including a first input gearwheel and a first driven gearwheel. The first input gearwheel is rotationally fixed with the first input shaft. The first input gearwheel is arranged upon the centre shaft.

Abstract: A forged hollow axle, particularly a steerable axle, is designed for a commercial vehicle. The axle has a main longitudinal extension in a y-direction, a width in an x-direction and a height in a z-direction and is composed of at least two half shells fixedly joined at an interface which extends along its longitudinal extension. A material thickness in one or both of the half shells is distributed in the main longitudinal extension and in one or both of width and height to provide a predetermined relation of a torsional stiffness and a bending stiffness in one or more spatial directions in one or more axle sections.

Abstract: A vehicle with a driver's cab including a driver unit with a vertically suspended floor structure and a vehicle steering control, a vehicle speed control and a driver's seat. The cab is provided with a deformation zone behind the driver unit for absorbing force in case of a frontal collision. A horizontal beam belonging to the cab frame structure is positioned in front of the driver unit. An arrangement for positively locking the beam to the driver unit is provided in case a frontal collision causes the beam to contact the driver unit.

Abstract: A method for functional diagnosis of a separator for separating oil present in a blow-by has from a crankcase in a combustion engine is provided. The crankcase includes a crankcase pressure sensor, and is in fluid communication with the separator. The method includes the steps of detecting a first output signal of the crankcase pressure sensor at a first operational point or interval, and comparing the first output signal of the crankcase pressure sensor with at least one reference value or signal, wherein the comparison between said first output signal of the crankcase pressure sensor and the at least one reference value or signal provides the functional diagnosis of the separator. A method can perform a functional diagnosis without the use of additional sensors or complex algorithms and as a consequence manufacturing costs can be held at a minimum.

Abstract: A method is provided for detecting use of unauthorized software in an engine control unit provided in a vehicle. The method includes calculating a Checksum Verification Number (CVN) each time the engine is started, comparing a last calculated CVN with a last stored CVN in a list of a plurality of CVN entries, storing the last calculated CVN if the last calculated CVN is different to the last stored CVN together with a date of an entry in the list of CVN and/or the current odometer status, removing entries in the list of CVN according to FIFO principle when the list of CVN is full, and presenting this upon request from an on-board or off-board tool.

Abstract: A method for monitoring an insulation fault in an electric network with at least one electric power system supplying electric power to one or more electric loads, and at least one insulation resistance monitor is provided, wherein the at least one electric power system includes at least one electrical power source, and wherein the at least one insulation resistance monitor monitors an insulation resistance between terminal leads of the at least one electric power source and at least one reference potential. The steps are performed of disconnecting the at least one electric power source from the one or more loads by opening each terminal lead; measuring the insulation resistance between the electric circuit of at least one electrical power source and the reference potential; measuring the insulation resistance for the total electric network; closing the second terminal lead with the first terminal lead open; and measuring the insulation resistance for the total electric network.

Abstract: A method for optimized launch of a vehicle is provided wherein a driveline of the vehicle at least includes an engine, an automatic transmission, a system for exhaust gas recirculation, which are controlled by a driveline management system, wherein the management system is able to determine the mass of the vehicle, and whereby a launching gear of the transmission is calculated dependent at least on the determined mass of the vehicle, whereby a launching gear is chosen dependent of the power loss caused by the EGR and wherein the power loss caused by the EGR is determined, the available power to launch the vehicle is determined, and the launching gear is recalculated dependent of the available power, and selecting said recalculated launching gear before launch of the vehicle, launch the vehicle with the recalculated launching gear.

Abstract: A self-diagnosing method for diagnosing a selective catalytic reduction (SCR) system of a vehicle that includes an internal combustion engine. An SCR system is arranged downstream of the engine, and the SCR system includes at least one exhaust gas sensor that is sensitive to nitrogen oxides (NOx) gas. The method includes a first diagnosing sequence (S1) of ensuring that the vehicle is in a stationary state, controlling the engine to operate in a high NOx output engine operating state and in a low NOx output engine operating state, registering an output signal of the at least one exhaust gas sensor when the engine operates in each of the high NOx output engine operating state and low NOx output engine operating state, and diagnosing NOx measurement performance of the at least one exhaust gas sensor on the basis of the registered sensor output.