Volvo Truck Corporation Patent applications |
Patent application number | Title | Published |
20160131099 | STARTER DEVICE FOR AN INTERNAL COMBUSTION ENGINE - A starter device for an internal combustion engine includes a starter housing, an electric motor and an engagement pinion driven in rotation by the motor around the pinion rotation axis, the pinion being movable in a translational motion along its pinion rotation axis between a retracted position and an engaging position for engaging a gear connected to the internal combustion engine, the translational motion being caused by the rotation of the electric motor, the starter device further comprising a non-rotatable element which is blocked in rotation with respect to the starter housing, a rotatable element driven in rotation by the electric motor, a helical linkage between the non rotatable element and the rotatable element for causing the translational motion of the pinion. The non rotatable element is fixed in translation along the pinion rotation axis with respect to the starter housing, the rotatable element can translate with respect to the starter housing, and translation of the rotatable element causes translation of the pinion towards its engaging position. The non-rotatable element includes a retractable clutching member with a pin movable in translational movement, so that the helical linkage can be deactivated. | 05-12-2016 |
20160131011 | METHOD FOR TIMING A REGENERATION PROCESS - A method for timing of a regeneration process of an exhaust gas system of a vehicle engine includes collecting, during operation of the vehicle, data on an exhaust gas regeneration capability as a function of time, establishing, from the collected data, a statistical probability function for the exhaust gas regeneration capability as a function of time, and identifying, from the probability function, one or several time periods that statistically are suitable and/or unsuitable for carrying out a regeneration process. A method for regeneration of an exhaust gas system of a vehicle engine is also provided. | 05-12-2016 |
20160130981 | INTERNAL COMBUSTION ENGINE ARRANGEMENT COMPRISING A WASTE HEAT RECOVERY SYSTEM AND PROCESS FOR CONTROLLING SAID SYSTEM - A waste heat recovery system carrying a working fluid in a loop includes an expander, a condenser and a pump, a first and a second line arranged in parallel in the high pressure circuit portion upstream of the expander and joining at a downstream junction point in the high pressure circuit portion. The first line includes a first heat exchanger connected to the exhaust line, and the second line includes a second heat exchanger connected to a line carrying a warm fluid. A first by-pass system prevents not fully evaporated working fluid from the first line to flow through the expander. A second by-pass system connects the second line to the low pressure circuit portion for by-passing the downstream junction point and the expander. | 05-12-2016 |
20160130851 | PROTECTION ARRANGEMENT FOR AN ELECTRIC VEHICLE - A protection arrangement for a current collector arranged on a vehicle having a rechargeable energy storage includes a first protective state in which the current collector is covered by the protection arrangement and a second open state in which the protection arrangement allows contact between the current collector and a corresponding current supply during charging of the energy storage and where the protection arrangement is automatically opened from the protective state to the open state when the vehicle has reached a predefined charging position. The current collector can be enclosed when the vehicle is not charged and the protection arrangement can open automatically when a charging position is reached. This can improve the safety of the vehicle and obviate the need of a specific circuit breaker that can disconnect the current collector from the electric energy storage. The charging of the vehicle can also be simplified. | 05-12-2016 |
20160123290 | HYDRAULIC SYSTEM - A hydraulic system includes a high pressure fluid source and a hydraulic actuator fluidly connected to the high pressure fluid source, and a low pressure fluid system fluidly connected to the hydraulic actuator via a fluid return line, and a hydraulic valve. The hydraulic valve includes a return spring and an elongate member, which is movably arranged in its longitudinal direction for controlling a fluid flow. The elongate member is biased to a closed position by the return spring. The elongate member forms a needle, the hydraulic valve includes a needle receiving body having a needle seat and the needle is engageable with the needle seat so as to control the fluid flow. | 05-05-2016 |
20160121929 | CROSS-MEMBER AND METHOD FOR MOUNTING A COMPONENT TO A VEHICLE FRAME BEAM - A cross-member is provided for a vehicle having a frame structure including two longitudinal beams, wherein the cross-member includes a main portion and two end-sections wherein each end section includes an outer surface for facing an inner surface of a longitudinal frame beam wherein the cross-member includes at least one protrusion extending from the outer surface of the end-sections for being introduced into a hole or notch of the frame beam for forming a form-lock to one more components to be mounted to the longitudinal frame beam. | 05-05-2016 |
20160121872 | METHOD FOR SELECTING A GEAR - A method is provided for balancing clutch wear in a dual clutch transmission, the transmission comprising a first transmission mechanism arranged to transmit mechanical driving force from an output shaft of the internal combustion engine to a first input shaft and to put any one of a first set of gears in an engaged state to connect the first input shaft to the ground engaging members; a second transmission mechanism arranged to transmit mechanical driving force from the output shaft of the internal combustion engine to a second input shaft and to put any one of a second set of gears in an engaged state to connect the second input shaft to the ground engaging members; a controllable first clutch unit arranged to bring the output shaft of the internal combustion engine and the first input shaft into engagement with each other; a controllable second clutch unit arranged to bring the output shaft of the internal combustion engine and the second input shaft into engagement with each other, and an electronic control unit arranged to control gear selection and clutch unit actuation. The method involves performing the steps of determining which clutch unit is subjected to the most accumulated wear and selecting a gear actuated by the other clutch unit during launch of the vehicle. | 05-05-2016 |
20160121734 | METHOD AND ARRANGEMENT FOR CONTROLLING CHARGING OF AN ENERGY STORAGE SYSTEM - A method is provided for controlling charging of an energy storage system in a vehicle including an electric machine which is arranged for propulsion of the vehicle. The method includes initiating the charging upon connection of the energy storage system to an external power supply via connector elements; and transmitting, between the vehicle and the external power supply, a control signal including data related to the charging by a wireless transmission link. The method furthermore includes evaluating whether the control signal is received; and terminating the charging in the event that the control signal is not received. An arrangement for controlling charging of an energy storage system is also provided. | 05-05-2016 |
20160117427 | METHOD FOR A VEHICLE - A method for providing a model for a part of a vehicle includes selecting at least one operation state, selecting at least one possible fault type for the vehicle part, simulating vehicle part performance for the at least one operation state during the occurrence of the at least one possible fault type, for each simulation creating a representation of the vehicle part performance in which each representation is associated with at least one operating parameter value, and storing the at least one representation. | 04-28-2016 |
20160116062 | VEHICLE TRANSMISSION AND A METHOD FOR OPERATING A VEHICLE TRANSMISSION - A vehicle transmission includes a first transmission mechanism arranged to transmit mechanical driving power from an output shaft of the prime mover to a first input shaft and to put any one of a first set of gears in an engaged state to drivingly connect the first input shaft to the driving wheels; and a second transmission mechanism arranged to transmit mechanical driving power from the output shaft of the prime mover to a second input shaft and to put any one of a second set of gears in an engaged state to drivingly connect the second input shaft to the driving wheels. Controllable first and second clutch units are arranged to bring the output shaft of the prime mover and the first and the input shaft, respectively, into engagement with each other. A lubrication pump is drivingly connected to the first input shaft to lubricate the transmission and an electronic control unit is arranged to determine a lubricated state of the transmission and the operational state of the lubrication pump. When the first clutch unit is engaged to connect the output shaft of the prime mover to the first input shaft, the lubrication pump is driven by the first input shaft. When the second clutch unit is engaged to connect the output shaft of the prime mover to the second input shaft, the lubrication pump is arranged to be driven by the first input shaft by at least partly engaging the first clutch unit. | 04-28-2016 |
20160114831 | METHOD FOR ASSISTING THE REVERSAL OF AN ARTICULATED VEHICLE - A method for assisting the reversal of an articulated vehicle includes recording a predefined number of positions for a first articulated vehicle for a specified path, recording the articulation angle of each articulation joint of the articulated vehicle at the predefined number of positions, recording the heading for the first articulated vehicle at the predefined number of positions, saving the recorded values for the specified path in a memory, calculating the swept area of the first vehicle for the specified path by using the recorded values and size information of the articulated vehicle, and using the swept area to control the steering of the articulated vehicle when reversing the articulated vehicle along the specified path, such that the articulated vehicle does not extend outwards of the swept area during the reversal. The area covered by the articulated vehicle when travelling forwards can be used to control the steering of the vehicle when reversing along the same path, such that the articulated vehicle substantially does not extend outward the swept area when reversing. In this way, an assisted reversing functionality can be used, which allows for a faster and more efficient reversing of the articulated vehicle, and at the same time allows for an improved comfort for the driver. | 04-28-2016 |
20160114790 | VEHICLE PROPULSION SYSTEM COMPRISING AN ELECTRICAL POWER COLLECTOR - A vehicle propulsion system includes a combustion engine, an exhaust aftertreatment system connected to the combustion engine, and an electrical power collector for intermittently collecting electrical power from external power supply track during driving of the vehicle. The vehicle propulsion system includes a heating system that is arranged to heat at least one component of the exhaust aftertreatment system and/or the combustion engine. The electrical power collector is arranged for supplying the heating system with electrical power when collecting electrical power from the external power supply track. | 04-28-2016 |
20160114683 | ENERGY MANAGEMENT SYSTEM FOR A NON-RAILBOUND VEHICLE - An energy management system is provided for a hybrid electric or electric vehicle including an electrical power collector for intermittently collecting electrical power from an external power supply track during driving of the vehicle. The energy management system is arranged to distribute electrical power from the electrical power collector to at least one electrical auxiliary load of the vehicle when collecting electrical power from the external power supply track. The enemy management system includes a control unit configured to control operating characteristics of the at least one auxiliary load depending on if the vehicle operates in a power collecting mode or in a non-power collecting mode. | 04-28-2016 |
20160091032 | A SYNCHRONISING DEVICE - A synchronising device is provided for synchronising a first rotatable part with a second rotatable part adjacent to the first rotatable part. The synchronising device includes a first part provided with an engaging sleeve and a second part provided with a synchroniser ring. The synchronising device has at least one positioning resilient member which is arranged to act upon the synchroniser ring and the second part, in order to allow a design with few parts and also to presynchronise the synchronising ring with the second part. A transmission including such a synchronising device is also provided. | 03-31-2016 |
20160078690 | METHOD FOR MONITORING STATE OF HEALTH OF A VEHICLE SYSTEM - A method is provided for monitoring a state of health of a vehicle system and includes measuring a plurality of parameter values for the system at different running conditions as an end of line test, storing the parameter values in a fingerprint file, measuring the same plurality of parameter values that is comprised in the fingerprint file after a predefined time interval, adding a predefined, ageing offset to the fingerprint file, where the ageing offset corresponds to a predicted wear of the system during the predefined time interval, thereby obtaining a time modified fingerprint file for the system, comparing the measured values with the time modified fingerprint file, and issuing a message if the measured values deviates from the time modified fingerprint file. The state of health can be compared with initial measurements such that the state of health of a vehicle system or component can be monitored over a longer time period. | 03-17-2016 |
20160075250 | METHOD AND ARRANGEMENT FOR ERROR DETECTION DURING CHARGING OF AN ENERGY STORAGE SYSTEM - A method for error detection during charging of an energy storage system in a vehicle is provided, the vehicle including an electric machine which is arranged for propulsion of the vehicle. The method includes requesting a charging pattern from an external power supply, by a vehicle control unit, upon connection of the energy storage system to the external power supply; and supplying the charging pattern to the energy storage system by an external charging control unit forming part of the external power supply. The method furthermore includes providing a predetermined modulation of the requested charging pattern; evaluating whether the charging pattern supplied to the energy storage system includes the predetermined modulation; and, if this is not the case, indicating that the charging of the energy storage system is erroneous. An arrangement for error detection during charging of an energy storage system, and a vehicle including an electric machine and having such an arrangement are also provided. | 03-17-2016 |
20160061125 | METHOD AND APPARATUS FOR CONTROLLING AN ENGINE WITH EGR AND A TURBOCHARGER - A control system is provided for controlling an internal combustion engine. The internal combustion engine includes a turbocharging unit and an exhaust gas recirculation assembly. The control system is adapted to issue a boost pressure control signal. The control system includes a boost pressure controller adapted to determine the boost pressure control signal. The boost pressure controller has a first response time. The control system is adapted to issue an exhaust gas recirculation control signal for controlling an amount of recirculated exhaust gas via the exhaust gas recirculation assembly. The control system includes an exhaust gas recirculation controller adapted to determine the exhaust gas recirculation control signal independently of the boost pressure control signal. The exhaust gas recirculation controller has a second response time, wherein the first response time differs from the second response time. | 03-03-2016 |
20160061083 | SYSTEM FOR INJECTING REACTANTS IN AN EXHAUST LINE - A system to be fitted on an automotive vehicle for injecting reactants in an exhaust line of an engine of the vehicle includes a source of a liquid precursor of ammonia, a source of gaseous ammonia, an injection assembly designed to be fitted on the exhaust line and to inject liquid precursor and/or gaseous ammonia inside the exhaust line, the injection assembly including a single injector body to be fitted on the exhaust line, the injector body having a first inlet for the liquid precursor, a second inlet for the gaseous ammonia, and at least one outlet for injection inside the exhaust line. | 03-03-2016 |
20160047467 | A CONTROL METHOD FOR A POWERTRAIN FOR A VEHICLE AND CORRESPONDINGLY CONTROLLED POWERTRAIN - A control method is provided for a powertrain in a vehicle, the powertrain including an engine mechanically connected to a gearbox and an Electronic Control Unit (ECU), wherein the method includes allowing an extraordinary gear shift in spite of a first torque comparison indicating an expected engine output torque demand above a first general limit for allowed output torque associated with the extraordinary gear shift provided that: a second torque comparison indicates that the expected engine output torque demand after the extraordinary gear shift is within the limits of a second temporarily increased allowed engine output torque limit; and an extraordinary gear shift criteria is fulfilled indicating a gear shift is allowed the criteria being dependent on at least one parameter chosen among estimated fuel efficiency, engine efficiency, expected future torque demand, time of running the engine above the general engine torque limit and engine temperature. | 02-18-2016 |
20160047325 | METHOD FOR DETERMINING FUEL BLEND IN A DUAL FUEL MIXTURE - A method is provided for determining fuel blend in a dual fuel mixture including a first and a second fuel in an internal combustion engine. The method includes the steps of measuring multiple engine parameters using sensors during transient cycle operation for a predetermined range of engine loads and fuel blends; using system identification of transient time series of the measurements to determine one or more relevant engine parameters; determining a model for estimation of the fuel blend based on said one or more engine parameters; using the model fur determining a current fuel blend during transient operation using current measured values of the one or more engine parameters, and using the calculated current fuel blend for controlling the amount of dual fuel mixture injected into each cylinder of the internal combustion engine. A vehicle and a computer program product using the method are also provided. | 02-18-2016 |
20160039427 | METHOD FOR DETERMINING ENERGY EFFICIENCY OF AN ENERGY SYSTEM IN A HYBRID VEHICLE - A method for determining the efficiency of an electric energy system of a hybrid vehicle includes determining a measure representative of a relation between the electrical, brake energy and the mechanical brake energy, by determining a requested brake energy for a first vehicle retardation, and by determining an actual electrical brake energy and the actual mechanical brake energy during the vehicle retardation, determining a new measure representative of a relation between the electrical brake energy and the mechanical brake energy at a subsequent second similar vehicle retardation, comparing the determined measures representative of a relation between the electrical brake energy and the mechanical brake energy of the first and second vehicle retardations, where the actual efficiency of the energy system is obtained from the change in the measure representative of a relation between the electrical brake energy and the mechanical brake energy of the first and second vehicle retardations. | 02-11-2016 |
20160003137 | EXHAUST GAS PRESSURE REGULATOR - An exhaust gas pressure regulator for an engine includes an exhaust gas duct delimiting an exhaust was flow path and a regulating member, which is moveable in a first direction in the exhaust gas duct between a first end position, in which the exhaust gas flow path is open for exhaust gas throughflow, and a second end position, in which the regulating member at least substantially closes the exhaust gas flow path for exhaust gas throughflow, wherein the regulating member and the exhaust gas duct are configured for defining an annular gap when the regulating member is positioned in the second end position for allowing exhaust gas to flow through the exhaust gas pressure regulator. | 01-07-2016 |
20160001784 | METHOD FOR CALCULATING A DESIRED YAW RATE FOR A VEHICLE - A method is provided for calculating a driver's desired yaw rate of a vehicle for use in a vehicle movement control system and includes determining the current yaw rate of the vehicle, determining the rate of the vehicle's steering wheel rotation. The method further includes calculating a first desired yaw rate of the vehicle based on the determined current yaw rate of the vehicle and the determined rate of the vehicle's steering wheel rotation, the desired yaw rate being further calculated based on the assumption that the driver applies a rate of steering wheel rotation as function of the driver's perceived error in yaw rate, and finally the step of providing the first desired yaw rate as an input to the vehicle movement control system for controlling the vehicle. | 01-07-2016 |
20160001778 | METHOD FOR IMPROVING STARTABILITY OF A VEHICLE - A method for improving startability of a vehicle is provided, the vehicle being provided with a prime mover and a kinetic energy recuperation system The prime mover is adapted to propel the vehicle either alone or in combination with the kinetic energy recuperation system which is operably coupled to the prime mover and to wheels of the vehicle and is adapted to store energy at times when there is an abundance of energy and to use energy at times when there is a demand for energy. A vehicle is also provided. The method includes determining that the vehicle is standing still or essentially standing still; detecting a take-off assistance condition; detecting a level of energy in the kinetic energy recuperation system; if the level of energy is found insufficient, connecting the prime mover to the kinetic energy recuperation system and running the prime mover such that energy from the prime mover is stored in the kinetic energy recuperation system; and when a driver requests the vehicle to take off, running the prime mover and consuming energy from the kinetic energy recuperation system such that the wheels of the vehicle initiate propelling thereof. | 01-07-2016 |
20160001673 | METHOD FOR BALANCING THE VOLTAGE OF BATTERY CEL - A method is provided for balancing the voltage of multiple series-connected electrochemical cells of an electrical storage system of a hybrid electric vehicle. The method includes discharging the electrical storage system by operating at least one large electrical machine of the vehicle at vehicle standstill until the state of charge of the electrical storage system or the cell having the lowest state of charge has reached a predetermined level, and subsequently balancing the voltage of the cells. | 01-07-2016 |
20150367813 | SEAT BELT ARRANGEMENT FOR A SUSPENSION SEAT AND VEHICLE EQUIPPED WITH SUCH AN ARRANGEMENT - A seat belt arrangement includes a scat belt having a first end portion secured to the seat at a first lower attachment point, and a second end portion mounted on a reel secured to the vehicle frame; a lower deflection member slidably attached to the seat belt and equipped with a locking element intended to be removably locked in a second lower attachment point on the seat; an upper deflection system attached to the seat belt between the lower deflection member and the reel, and in which the seat belt may slide. The upper deflection system is arranged on a pivotal arm mounted on the vehicle frame so as to be able to automatically pivot about a pivot axis relative to the vehicle frame when the seat moves vertically, in order to keep the length of the torso portion of the seat belt, between the upper deflection system and the lower deflection member, and the seat belt tension substantially constant. | 12-24-2015 |
20150345569 | MULTIPLE-PLATE CLUTCH - A multiple-plate clutch includes a first set of plates and a second set of plates, wherein one of the first and second set of plates is a set of internal plates and the other is a set of external plates, the plates of each set being mounted on a respective plate carrier so that they are axially displaceable but not rotatable relative to the respective plate carrier, wherein the first set is provided with a separating arrangement which extends axially over all of the plates of at least the first set of plates and is arranged in between each pair of adjacent plates of at least the first set of plates and is provided such that the separating arrangement is adapted to wedge in between the respective adjacent plates. The separating arrangement is provided with a force enhancement arrangement which adds a radial force to the separating arrangement, wherein the force enhancement arrangement is at least a resilient member acting upon the separating arrangement to enhance the wedging in between the respective adjacent plates. | 12-03-2015 |
20150345418 | METHOD AND SYSTEM FOR CONTROLLING FUEL INJECTION - A method for controlling fuel injection of a combustion engine and a corresponding system includes providing at least a first predetermined air-fuel mixture map and determining a first air-fuel ratio based on at least one engine operating parameter and the at least first predetermined air-fuel mixture map; determining a second air-fuel ratio that is offset with a first constant value from the first air-fuel ratio, determining if a first operating mode or a second operating mode is selected; controlling engine fuel injection according to, the first air-fuel ratio when a currently requested fueling rate results in a smaller air-fuel ratio than the first air-fuel ratio and the first operating mode is selected; or alternatively controlling engine filet injection according to the second air-fuel ratio when a currently requested fueling rate results in a smaller air-fuel ratio than the second air-fuel ratio and the second operating node is selected. | 12-03-2015 |
20150333632 | POWER SUPPLY DEVICE - A power supply device supplies power to a load by combining a secondary battery and a capacitor connected in parallel to the secondary battery. The power supply device includes an insulation type DC-DC converter with a primary coil connected in parallel to the secondary battery and configured to accumulate energy by a current supplied from the secondary battery and a secondary coil configured such that an induction current flows thereinto from the primary coil by the accumulated energy, and a switching circuit configured to selectively connect the secondary coil in series to the capacitor in forward and opposite directions. | 11-19-2015 |
20150330960 | METHOD AND ARRANGEMENT FOR DETERMINING A FUEL QUALITY - In a method and an arrangement for determining a fuel quality of a fuel for a combustion engine fuel is conveyed from a low pressure fuel tank to a high-pressure volume, and injected into at least one cylinder of the combustion engine. A control valve is provided for controlling directly or indirectly the amount of fuel injected into the at least one cylinder. An actual value of a timing signal of the control valve is compared to a reference value of the timing signal of the control valve and a fuel quality parameter is derived from a difference between the actual value and the reference value of the timing signal of the control valve and/or that a fuel quality parameter is derived from a gradient of the pressure increase during a build-up phase of the pressure in the high-pressure volume compared to a reference value of the gradient of the pressure increase in the high-pressure volume. | 11-19-2015 |
20150329141 | METHOD AND ARRANGEMENT FOR AN ELECTRICAL STEERING SYSTEM - A method and an arrangement for assisting a driver of a vehicle during operation by providing the driver with a desired steering feel, wherein the vehicle includes a steering arrangement including an input shaft connected to a manually operated steering device, an output shaft connected to at least one pair of ground engaging members and a mechanical interconnection connecting the output shaft and the input shaft. The method involves detecting a first steering angle for the output shaft, which first steering angle indicates the position of the ground engaging members; detecting a second steering angle for the input shaft, which second steering angle indicates the position of the steering device; comparing the first and second steering angles and determining a current state of the steering arrangement; and controlling a first actuator connected to the output shaft and a second actuator connected to the input shaft in response to the detected first and second steering angles, in order to achieve a desired state of the steering arrangement; and applying a torque to the steering device proportional to the angular difference between the output shaft and the input shaft using a resilient portion in the mechanical interconnection, in order to provide the driver with a desired steering feel. | 11-19-2015 |
20150326066 | POWER SUPPLY DEVICE - A power supply device for supplying power to a load by combining a secondary battery and a capacitor connected in parallel to the secondary battery includes an insulation type DC-DC converter with a primary coil connected in parallel to the secondary battery and configured to accumulate energy by a current supplied from the secondary battery and a secondary coil connected in series to the capacitor and configured such that an induction current flows therein by the accumulated energy from the primary coil. | 11-12-2015 |
20150321658 | METHOD FOR ENGINE STARTING IN A HYBRID VEHICLE - A method is provided for starting an internal combustion engine of a hybrid vehicle. The vehicle includes a single or a dual-clutch transmission for transmitting torque from the engine to the driving wheels; the transmission has at least one input shaft connected to a clutch. The single and dual-clutch transmission have each an output shaft and at least a first countershaft which are connectable to the first clutch or clutches, respectively. An electric machine is mechanically connected to the countershaft downstream of the clutches so that the clutches are interposed between the electric machine and the engine. The starting method involves detecting at least one engine related parameter to determine whether the electric machine is to be used for cranking the engine and opening the clutch to separate the electric machine from the engine. Subsequently, the at least one detected engine related parameter is used to select rotatable components to be used for assisting engine start. The selected components are rotated by connecting the countershaft to the clutch; and operating the electric machine. The clutch is then closed in order to start the engine. | 11-12-2015 |
20150321657 | METHOD FOR CONTROLLING A HYBRID VEHICLE ELECTRICAL SYSTEM - A method for controlling a hybrid vehicle electrical system includes driving the vehicle in a first driving mode where the battery pack is connected to the traction voltage DC-link and the battery pack is supplying the electrical auxiliary units with power, shutting down the power electronics unit in order to cease power delivery from the electric machine to the traction voltage DC-link or to the electric machine from the traction voltage DC-link, disconnecting the battery pack from the traction voltage DC-link by opening the relay, and activating the power electronics unit and controlling output voltage of the power electronics unit to a predetermined level. | 11-12-2015 |
20150316525 | A METHOD OF ANALYSING AN IRON MELT - A method of analysing an iron melt for producing compacted graphite iron includes receiving thermal data from cooling of a cast melt including a predetermined amount of carbon, magnesium, balance iron and unavoidable impurities, plotting the temperature of the cast melt against time such that a plotted time-temperature curve is generated, comparing the generated plotted curve to at least one reference curve, the reference curve representing a corresponding thermal analysis of another melt, the resulting nodularity of which is known, for the purpose of predicting the nodularity of the cast melt on basis of the difference between the curves. The comparison on which the nodularity is predicted is performed along each of the curves for a time interval t | 11-05-2015 |
20150315956 | COOLING SYSTEM FOR A MECHANICALLY AND HYDRAULICALLY POWERED HYBRID VEHICLE - A cooling system for a heavy road vehicle provided with a hybrid propulsion system includes a mechanical propulsion system and a hydraulic propulsion system. The cooling system includes a pump and a first cooling circuit including a gearbox cooling circuit a hydraulic propulsion system cooling circuit and a first radiator for cooling of a coolant flowing in the first cooling circuit. The radiator is connected in series with and located upstream of the gearbox cooling circuit and the hydraulic propulsion system cooling circuit. The cooling system is designed such that the hydraulic propulsion cooling circuit and the gearbox cooling circuit are connected in parallel. | 11-05-2015 |
20150314790 | METHOD AND ARRANGEMENT FOR DETERMINING THE SPEED BEHAVIOUR OF A LEADING VEHICLE - An arrangement for determining a vehicle speed behaviour model for a leading vehicle, where the leading vehicle drives along a path in front of a trailing host vehicle and where the determination is done by a control unit in the host vehicle, where the host vehicle includes an arrangement for measuring the time gap to the leading vehicle, an arrangement for measuring the speed of the host vehicle, an arrangement for obtaining external information regarding an upcoming change in a road condition, where the control unit is adapted for monitoring the change in vehicle speed of the leading vehicle, and for determining a vehicle speed behaviour model for the leading vehicle based on the monitored change in vehicle speed of the leading vehicle. The vehicle speed behaviour of a leading vehicle can be used by the host vehicle to optimize the fuel consumption, the comfort and the safety of the host vehicle. | 11-05-2015 |
20150314758 | A DISC BRAKE SYSTEM FOR A MOTOR VEHICLE, HAVING A BRAKE MECHANISM WITH A REDUCED SIZE - A brake system includes a brake disc, rotary movable around a disc axis, and a brake mechanism. The brake mechanism includes a brake pad, movable in a first direction, a cylinder having a piston movable in a second direction, a lever rotary movable around a lever axis, the lever being connected to the piston, a cam element, arranged to convert a rotary motion of the lever around the lever axis, into a translation motion in the first direction, and a rod, expanding between the brake pad and the cam element. The lever, the cam element and the rod are housed in a housing. Considering a plane including the disc axis and the first direction, the lever axis is inclined relative to the plane, at an angle different from 90°. | 11-05-2015 |
20150314684 | VEHICLE ARRANGEMENT, METHOD AND COMPUTER PROGRAM FOR CONTROLLING THE VEHICLE ARRANGEMENT - A vehicle arrangement includes a display for providing an indication of a status of a first vehicle function, a first operational interface for controlling the first vehicle function, and a control unit connected to the display and the first operational interface, the control unit being adapted for selectively controlling the display for displaying the status of the first vehicle function. The vehicle arrangement further includes an arrangement for detecting an intention to control the first operational interface, and the control unit selectively controls the display for displaying the status of the first vehicle function at and for a predetermined time period following the detection of an intention to control the first operational interface. | 11-05-2015 |
20150308565 | ARRANGEMENT AND METHOD FOR ESTIMATING THE INPUT TORQUE OF A DUAL-CLUTCH TRANSMISSION - An arrangement for estimating the input torque of a dual-clutch transmission for a vehicle is provided. The transmission includes an inner input shaft and an outer input shaft arranged concentrically with respect to the inner input shaft. The arrangement further includes a dual-clutch assembly connecting the shafts to an output shaft of an engine. A torque sensor is arranged on the outer input shaft and connected to a transmission control unit. By torque sensor, a measured torque value is provided during operation of the outer input shaft and for providing an estimated torque value during operation of the inner input shaft. | 10-29-2015 |
20150308371 | PISTON FOR A CYLINDER OF A COMBUSTION ENGINE - A piston for a cylinder of a combustion engine includes piston crown including a piston bowl formed by an upwardly facing cavity, the piston bowl including a floor section with a central, and a side section, the side section connecting the inner section with an upper surface of the piston crown, wherein the side section is formed with mutually spaced apart ridges protruding towards the apex, and wherein the side section having at least one recess at an upper end of the side section connecting the side section with the upper surface of the piston crown. | 10-29-2015 |
20150307136 | INSTRUMENT PANEL FRAME TO BE FIXED TO THE BODY-IN-WHITE OF A CAB, CAB INCLUDING SUCH AN INSTRUMENT PANEL FRAME AND METHOD FOR ASSEMBLING SUCH A CAB - An instrument panel frame includes two supporting members and a linking member. Each supporting member is suitable for supporting at least one subset of an industrial vehicle. Each supporting member is attached to the linking member. Each supporting member has a fixing interface designed to cooperate with a respective fixing area of the firewall structure These respective fixing areas surround some major openings of the firewall structure. The supporting members and the linking merle are arranged so that each fixing interface cooperates with a respective fixing area, so as to enable the fixing of the instrument panel frame to the firewall structure. | 10-29-2015 |
20150307128 | A CONTROL METHOD OF A POWER STEERING SYSTEM FOR A VEHICLE HAVING TWO STEERED AXLES - A power steering system includes a first steering device which controls the steering of the first wheels of the vehicle according to a first steering angle α | 10-29-2015 |
20150298738 | METHOD FOR DETERMINING A MAXIMUM SPEED LIMIT FOR A REVERSING VEHICLE COMBINATION - A method is provided for determining a maximum speed limit for a reversing vehicle combination that includes a towing vehicle and at least one towed trailer. The method includes determining a manoeuvre that is to be performed by the vehicle combination, simulating the complete manoeuvre in advance by using a control algorithm and a state space model, thereby obtaining the steering behaviour of the vehicle combination during the manoeuvre, and calculating the maximum speed limit for the vehicle combination during the manoeuvre by using at least one predefined limiting condition. A maximum speed limit for a reverse assistance function can be estimated in advance, which allows for a faster and more efficient reversing of the vehicle combination, and at the same time allows for an improved comfort for the driver. | 10-22-2015 |
20150298729 | POWER STEERING SYSTEM FOR A VEHICLE - A power steering system includes a first steering mechanism designed to control the steering of at least one of the wheels of a steered axle and includes a mechanical transmission of the movement from a steering wheel of the vehicle to the wheel, a first actuator controlled by a parameter related to the steering wheel movement and capable of providing a steering assistance effort to the wheel. The power steering system further includes a second steering mechanism which includes a second actuator capable of providing a steering assistance effort to at least one of the wheels of the same axle, the second actuator having a housing which is secured to the axle, a first and a second piston rods able to slide through the housing and extending, on opposite sides, beyond the housing, with the piston rods being substantially parallel to the axle. | 10-22-2015 |
20150298518 | INDEPENDENT REAR SUSPENSION WITH LIFTING DEVICE - An independent suspension and an independent suspension arrangement for a liftable rear axle of a heavy vehicle are provided. The independent suspension includes a lower wishbone and an upper wishbone hingedly suspended in a support assembly and a hub carrier, and an air bellows and a lifting bellows, where the air bellows is arranged outside of a plane defined by the web of a main frame beam and the lifting bellows is arranged inside of a plane defined by the web of a main frame beam. The independent suspension arrangement includes a left wheel suspension, a right wheel suspension and at least one sub-frame assembly extending between the left and right wheel suspensions, where the left and right wheel suspensions are mounted directly to the sub-frame assembly. | 10-22-2015 |
20150292345 | POWER TURBINE UNIT - A power turbine unit includes a turbine housing, an exhaust duct, a turbine wheel with blades positioned in the exhaust duct, a shaft rigidly connected to the turbine wheel and rotatably supported in the housing, and an oil sealing system. The oil sealing system includes a sealing arrangement positioned in the vicinity of the turbine wheel for preventing oil from escaping from the turbine housing along the shaft to the exhaust duct. The oil sealing system further includes a buffer gas duct that is arranged to supply exhaust gas from the exhaust duct to the sealing arrangement for pressurizing the sealing arrangement. | 10-15-2015 |
20150291179 | METHOD FOR ESTIMATION OF A TRAILER WHEELBASE LENGTH - A method is provided for estimating the effective wheelbase length of a trailer in a vehicle combination including a towing vehicle and at least one towed trailer. The method includes driving the vehicle combination forwards, determining the speed of the vehicle combination, determining the steering angle of the towing vehicle, determining the steering angle of each towed trailer, determining the yaw rate of the towing vehicle and the yaw rate of the towed trailer or determining the articulation angle for each towed trailer, and using the determined values to calculate a value for the effective wheelbase for each towed trailer. An arrangement for estimating the effective wheelbase length of a trailer in a vehicle combination is also disclosed. | 10-15-2015 |
20150285173 | METHOD OF CONDITIONING A PARTICLE FILTER - A method of conditioning a particle filter provided for receiving exhaust gases from internal combustion engine is provided and includes providing a first engine control mode and a second engine control mode, wherein in the second engine control mode at least one combustion control parameter that affects the characteristics of particles emitted together with and carried by the exhaust gases from the engine is different in relation to the first control mode such that the filling rate of the particle filter with particles is increased compared to the filling rate that would have been achieved with the first engine control mode, determining a soot loading status of the particle filter, and temporarily applying the second engine control mode to the engine based on the soot loading status. | 10-08-2015 |
20150283892 | VEHICLE DRIVE TRAIN CONTROL METHOD - A heavy road vehicle provided with a hybrid propulsion system includes a mechanical propulsion system and a hydraulic propulsion system. The mechanical propulsion system is connected to at least one traction wheel which is powered by an internal combustion engine via a mechanical drive train and a gearbox. The hydraulic propulsion system is connected to at least one other traction wheel including a hydraulic motor powered by a hydraulic pump unit. The hybrid propulsion unit further includes a control unit for at least controlling the hybrid propulsion unit, optionally also controlling the mechanical propulsion system. The hydraulic propulsion system further includes a pressure accumulator which is connected to the hydraulic motor in order to maintain a pressure in the hydraulic motor even if the hydraulic pump unit is switched off. | 10-08-2015 |
20150262484 | METHOD AND SYSTEM FOR PROVIDING A TUTORIAL MESSAGE TO A DRIVER OF A VEHICLE - A method is provided for providing a tutorial message to a driver in a vehicle using an in-vehicle tutorial system including a multimodal user interface. The method includes assigning an area of improvement, including at least one tutorial task, to the tutorial system, identifying a driving context for which a tutorial task is to be performed, based on the tutorial task and the driving context, selecting a tutorial message encouraging a desired driving behavior, and providing the selected tutorial message to the driver using the multimodal user interface. | 09-17-2015 |
20150211584 | DRY-PLATE CLUTCH FOR A VEHICLE TRANSMISSION - A dry-plate clutch (single or dual) of inverted construction for a vehicle transmission includes a clutch structure with a connecting device arranged to be connected to a prime mover; a pressure plate rotationally fixed and axially displaceable relative to the clutch structure, and a driven disc connected to a driven shaft and located between the clutch structure and the pressure plate. An actuator is arranged to displace the pressure plate between an engaged state, where the driven disc is clamped between the clutch structure and the pressure plate, and a disengaged state, where the disc is rotatable relative to the clutch structure. The connecting device has hollow sections at a number of angular locations extending into a radial surface facing the pressure plate. The pressure plate has corresponding axially extending protrusions in a radial surface facing the connecting device; and the protrusions at least partially extend axially into the hollow sections in the disengaged state. | 07-30-2015 |
20150210214 | PRESENTATION OF AN AUDIBLE MESSAGE IN A VEHICLE - A communication system for vehicle compartment of a first vehicle is provided. The communication system is configured to provide an audible message to a driver of the first vehicle. The communication system includes a plurality of speakers spatially distributed apart from each other within the vehicle compartment, and a control unit for controlling the plurality of speakers. The control unit is configured to receive the audible message from a communication unit arranged remotely from the first vehicle, determine a spatial relation between the geographical position of the communication system in the first vehicle and a geographical position coupled to the audible message, assign at least one of the plurality of speakers for generating directional sound towards the driver within the vehicle compartment, the direction of the sound corresponding to the spatial relation between the first vehicle and the geographical position coupled to the audible message, and provide the audible message to the driver from the at least one assigned speaker. | 07-30-2015 |
20150209730 | METHOD AND SYSTEM FOR ESTIMATING REAGENT QUALITY - In a method for estimating the quality of an urea based reagent in terms of urea concentration, the reagent is injected upstream of a SCR catalyst in an exhaust aftertreatment system. A demanded NOx conversion rate is set substantially lower than a currently estimated maximum NOx conversion rate of the SCR catalyst. An actual NOx conversion rate is monitored for a certain time period. The urea concentration of the reagent is estimated based on comparing the monitored actual NOx conversion and the demanded NOx conversion during the time period. A corresponding system is also disclosed. | 07-30-2015 |
20150204280 | GAS FLOW UNIT, A GAS TREATMENT DEVICE AND A COMBUSTION ENGINE PROVIDED THEREWITH - A gas flow unit includes a gas flow inlet, a gas flow outlet and a gas flow chamber configured to convey a gas flow from the inlet to the outlet, wherein the gas flow inlet is configured to convey the gas flow in a first direction into the gas flow chamber and wherein the gas flow outlet is configured to convey the gas flow in a second direction from the gas flow chamber, wherein the second direction is angular in relation to the first direction, and wherein the gas flow inlet is an inlet into the gas flow chamber and the gas flow outlet is an outlet from the gas flow chamber. In the first gas flow direction, the gas flow chamber extends beyond a projection of an outer periphery of the gas flow outlet and defines a prolongation configured for conveying a first part of the gas flow such that it enters the gas flow outlet from a different direction than a second part of the gas flow entering the gas flow outlet without passing through the prolongation. | 07-23-2015 |
20150191073 | METHOD AND VEHICLE FOR OPERATING A VEHICLE AIR CONDITIONING SYSTEM - In a method and a vehicle for operating a vehicle heating, ventilating and cooling air conditioning system, the vehicle has an engine, to provide engine on and engine off operation, and a control unit for timer controlled activation and temperature control of the air conditioning system when the engine is off. The control unit allows an operator to set a target time and a target temperature related to the target time. The method includes the step of ventilating an interior compartment of the vehicle to ambient air for a period of time before the set target time, if the target temperature is lower than the interior temperature and the ambient air temperature is lower than the interior temperature. | 07-09-2015 |
20150155749 | METHOD OF MANUFACTURING A LAMINATED WINDING AND A LAMINATED WINDING - A method of producing a laminated winding with radial slots for electrical machines includes cutting cuts in a strip where the cuts form the radial slots of the laminated winding, and winding the strip to form the laminated winding. A laminated winding for an electrical machine produced according to the method is also provided. | 06-04-2015 |
20150034126 | GAS FLOW REGULATING DEVICE FOR CLEANING A PARTICULATE FILTER - A gas flow regulating device for cleaning a particulate filter is configured to be arranged in connection to the filter at a side thereof in a through-flow of a gas to be used for cleaning the filter. The device is a standalone unit configured to be removably installed in connection with a cleaning process, wherein the device includes a frame defining a gas flow passage and a gas flow regulating element arranged inside the frame, wherein the gas flow regulating element is provided with at least one opening for gas through-flow and a blocking part capable of blocking a portion of a gas through-flow area of the filter such as to force the gas to flow through the at least one opening, wherein the gas flow regulating element is movably arranged between at least two different positions, and wherein the at least one opening covers different portions of the gas through-flow area in the different positions. An arrangement for cleaning a particulate filter including such a device, and a method for cleaning a particulate filter using such a device are also provided. | 02-05-2015 |