Abstract: A gear arrangement includes a first and a second gearwheel where the first and second gearwheels are arranged next to each other upon a first shaft such that the first and second gearwheels can rotate relative to the first shaft. At least one gearwheel of the first and second gearwheels wheels is arranged upon the first shaft such that it can be axially displaced between a distanced axial position and a contact axial position upon the first shaft, and whereby in the distanced axial position, the first and second gearwheels are distanced from each other and in the contact axial position, an axial contact between the first and second gearwheel is enabled.

Abstract: A device is provided for preventing theft of a first vehicle component which is releasably connected to a second vehicle component. The theft preventing device includes a cover member arranged for obstructing removal of the first component from the second component and a locking member, which is configured for locking the cover member or the second component in an operational position in which the cover member obstructs the removal of the first component from the second component.

Abstract: A charge air system for a combustion engine and an operation method are provided. The charge air system includes a first turbocharger stage for intake of combustion air supplied to the engine from a first pressure to a second pressure, a second turbocharger stage for compression of the compressed air to a third pressure, a first heat exchanger being arranged between the first and the second turbocharger stage for cooling the compressed air, a first intake air bypass for modulating the flow of the air through the first heat exchanger and/or a first mass flow control unit for controlling the flow of a cooling medium supplied to the first heat exchanger.

Abstract: In a method for enriching the exhaust gases of a combustion engine with unburnt hydrocarbon engine operating conditions are monitored and in-cylinder post injection of unburnt hydrocarbon into one predetermined cylinder of at least two cylinders connected to an exhaust manifold is performed when the monitored engine operating conditions equal predetermined engine operating conditions. The predetermined engine operating conditions are set for resulting in a substantially zero flow of the post-injected hydrocarbon to an EGR circuit for the specific design of the engine in operation.

Abstract: A vehicle traction system includes a first traction wheel forming part of a first propulsion system including a mechanical drive train, a second traction wheel forming part of a second propulsion system including a hydraulic pump for powering a hydraulic motor, one sensor indicating a take-off condition, and a control unit for controlling the second propulsion unit. The control unit is programmed to automatically detect a take-off condition by the sensor and send an input to the control unit that a take-off condition is fulfilled, automatically provide a traction force from the second propulsion system in response to the indication that there is a take-off condition of the vehicle present and an indication that a traction is or will be provided by the first traction system, and automatically control the second propulsion unit by the control unit in dependence of the manually controlled torque from the first propulsion unit.

Abstract: A multi-vehicle arrangement for heavy haulage includes at least a first tractor unit mechanically connected with a second tractor unit, wherein each tractor unit forms a separately drivable tractor unit including a driver cab), a digital communication device, steering wheels, a braking system, and a power train comprising a power source, a friction clutch, and an automatic transmission, where the friction clutch is arranged to be disengaged or engaged for drive torque transmission from the power source to the automatic transmission, a digital communication link is provided between the tractor units by the digital communication devices, and a control system of the first tractor unit is arranged to control at least a clutch load of the friction clutch of each of the first and second tractor units for the purpose of reducing the risk of over-heating of any of the friction clutches during engagement or disengagement of the friction clutches.

Abstract: An exhaust gas-treating device (1) for an exhaust system of an internal combustion engine, especially of a motor vehicle, has a housing (2), which has a jacket (3) extending circumferentially on the side and two end-side end bottoms (4, 5). Maintenance is simplified with at least one mounting tube (6), which passes through one or the first end bottom (4) and into the outlet end (8) of which a particle filter (7) is plugged axially from the outside, with a deflecting housing (9). The deflecting housing (9) contains a deflecting chamber (10), and has at least one inlet (11) communicating with the deflecting chamber (10) and at least one outlet (12) communicating with the deflecting chamber (10). A fastening device (13) is provided for detachably fastening the respective inlet (11) at the respective outlet end (8) of the mounting tube (6).

Abstract: An interlocking device arranged to prevent forbidden order of engagement/disengagement of two tooth clutches in a vehicle transmission is provided and includes a groove arranged in a first of shift rods, and a second and a third groove arranged in a second of shift rods, an interlocking element arranged coplanar with the shift rods, and directed and movable towards the shift rods. The length of the interlocking element is adapted to allow certain combinations and order of engagement/disengagement of the tooth clutches. A piston element partitions the second and third groove. The piston element is movably arranged in a hole in the second shift rod such that the interlocking element can push the piston element down in the hole, allowing the second shift rod to be displaced only one-way when the first shift rod is in an engaged position.

Abstract: In a method for controlling a traction system for a heavy road vehicle, the system includes a first mechanical propulsion system, a second hydraulic propulsion system, and a control unit. The method includes measuring a first parameter value, indicative of the rolling radius of a first traction wheel, measuring a second parameter value, indicative of the rolling radius of a second traction wheel, and the control unit using the first and second parameter values for determining a present relation between the rolling radii of the first and second traction wheels. The control unit provides an output signal based on the present relation to optimize the traction applied to the second traction wheel. A traction system and a heavy vehicle incorporating a traction system are also provided.

Abstract: An interlocking device arranged to prevent at least one forbidden combination of engaged/disengaged positions of three tooth clutch groups in a vehicle transmission is provided. Each tooth clutch group is arranged to rotationally lock/unlock a shaft from a gearwheel. A shift rod is arranged to push a tooth clutch between engaged/disengaged position. The interlocking device includes movable elements where each movable element is directed towards one of the shift rods in order to lock one of the tooth clutch groups in the disengaged position, and an interlocking element arranged in the middle of the movable elements. A diameter of the interlocking element and lengths of the movable elements are adapted to allow only two of the tooth clutch groups to be engaged simultaneously.

Abstract: An energy management system is provided for a hybrid electric vehicle including an electrical machine for vehicle traction drive and recuperative braking, an electrical storage system ESS for storing recuperated energy, and at least one additional vehicle electrical auxiliary device different from the electrical machine. An energy management controller is arranged to, upon establishing a potential for increased amount of recuperated energy during a predicted future downhill descent, direct electrical power from the ESS to the at least one additional electrical auxiliary device for the purpose of reducing the electrical charge level of the ESS, such that an increased amount of energy may be recuperated and stored in the ESS during the predicted future downhill descent.

Abstract: A fuel system includes a low pressure fuel system, a high-pressure fuel pump, a common rail, at least one fuel injector, and an engine management system. The engine management system may initiate a recirculating cooling fuel flow through the high-pressure fuel pump for avoiding fuel boiling by either increasing the target pressure of the fuel within the common rail above a threshold level, which triggers opening a high-pressure fuel relief valve, such that fuel supplied by the high-pressure fuel pump is returned to the low pressure fuel system via the high-pressure fuel relief valve, or providing increased internal fuel leakage within the at least one fuel injector, such that fuel supplied by the high-pressure fuel pump is returned to the low pressure fuel system by a return line.

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 injector sleeve adapted to be mounted in a cylinder head of an internal combustion engine, where the injector sleeve comprises a tapered inner surface which constitutes a sealing surface for an injector, where the hardness of the tapered inner surface is higher than hardness of the outer surface of the injector sleeve. The injector sleeve is produced in a cold forming process. The advantage of the invention is that the injector sleeve is provided with a sealing surface for an injector which is harder than the outer surface of the injector sleeve. In this way, a sealing surface for an injector having small tolerances is obtained without further machining, where the outer surface may be turned to the desired dimensions.

Abstract: A multi-clutch transmission for a motor vehicle is provided where a central synchronizing unit includes an axially movable synchronizing member that is arranged on and rotationally locked with a countershaft. In actuated states of the central synchronizing unit, the synchronizing member is displaced axially into engagement with mating portions of two gearwheels that are rotatably arranged on the countershaft. The synchronizing member includes an internal and an external cortical friction surface that axially overlap each other, and the mating portions on the two of the gearwheels are mating conical surfaces.

Abstract: A method and system to control an engine brake of a vehicle is provided. The vehicle is provided with a combustion engine having cylinders, an exhaust pressure governor (EPG) regulating the air flow out of the cylinders, an intake air throttle valve (ITV) regulating the air flow into the cylinders, pressure sensing means for sensing a pressure downstream of the cylinders, wherein an engine braking torque can be regulated in two different engine braking modes (a, b), a first engine braking mode (a), in which the air flow through the EPG is regulated by a closed loop control using the pressure downstream of the cylinders and the ITV is regulated in a feed forward control dependent of the engine speed and a demanded brake torque; a second engine braking mode (b), in which the EPG is regulated in a feed forward control dependent of the engine speed and the demanded brake torque, and the my regulates the braking torque by a closed loop control using the pressure downstream of the cylinders.

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: An injector sleeve adapted to be mounted in a cylinder head of an internal combustion engine, where the injector sleeve comprises a tapered inner surface which constitutes a sealing surface for an injector, where the hardness of the tapered inner surface is higher than the hardness of the outer surface of the injector sleeve. The injector sleeve is produced in a cold forming process. The advantage of the invention is that the injector sleeve is provided with a sealing surface for an injector which is harder than the outer surface of the injector sleeve. In this way, a sealing surface for an injector having small tolerances is obtained without further machining, where the outer surface may be turned to the desired dimensions.

Abstract: A multi-clutch transmission is provided with a first and a second input frictional clutch, an input arrangement for establishing a driving connection of a prime mover and the first and second frictional clutches, and a main transmission. The main transmission has a first and a second rotational axis about which a main shaft and a countershaft is arranged respectively, an output shall and connection means for establishing a driving connection between the main shaft and the output shaft, and least two input shafts, which are connected to the first and second input frictional clutch, and a reverse shaft provided with a first reverse gear wheel. A reverse gear is achieved by transferring power over the reverse shaft to the output shaft.

Abstract: A method for controlling a cruise control operable to maintain a set speed of a vehicle according to a plurality of goal droop curves is provided. The goal droop curves include: an isochronous droop curve; a top droop curve; and a bottom droop curve. The method includes performing command according to the droop curves; registering that the vehicle soon will enter an uphill slope; estimating in a vehicle position before entering the uphill slope if a downshift in a transmission of the vehicle will occur when traveling the uphill slope during a coming time period (testimation); if the downshift is estimated to occur then performing a fuel saving action during the time period in order to avoid the downshift. The fuel saving action is one of an adaptation of transmission downshifting limits or to during the time period performing command according to a second isochronous curve.