Volvo Trucks Patente

The invention concerns an electric drive axle (12), comprising: - an electric machine (22) with a rotor shaft (28), and - a transmission (26) comprising : a. a primary reduction gearset (30) connected to the rotor shaft (28) and comprising a driving gear (34), and b. a planetary gear transmission (32) comprising : i. an outer planetary gearset (36) comprising an outer ring gear, an outer planet carrier and an outer sun gear, and ii. an inner planetary gearset (38) comprising an inner ring gear and an inner sun gear. The outer ring gear is connected to the driven gear (34) and defines the input of the planetary gear transmission (32). The inner planetary gearset (38) comprises an inner planet carrier defining the output of the planetary gear transmission (32).

Motor drive system (1) for providing power to auxiliary loads of a vehicle at least partially electrically powered, comprising: - an electric machine (2); - an AC/DC inverter (3) having its AC and DC sides (5,6) connected to the electric machine and a high voltage power system (100) of the vehicle, respectively and when the vehicle undergoes a fault causing onboard high voltage batteries to be disconnected, the inverter assumes a first configuration or a second configuration; - a controller (4) switching the inverter between the two configurations based on a comparison of a reference voltage with the DC voltage measured at the DC output of the inverter, thereby controlling an output voltage supplying the auxiliary loads.

The invention concerns a method (100) for controlling a gearbox of a vehicle. The method (100) comprises applying a high primary gear shifting strategy (102), comprising: - calculating an achievable acceleration (108) that would be achieved if using the motor at full capability ; - setting an acceleration limit (110), representing a lower threshold for shifting from a high primary gear to a low primary gear ; - calculating a factored acceleration limit (112) by multiplying the acceleration limit by a factor depending on a current acceleration command ; and - applying a primary gear selection (114), where the high primary gear is kept (116) if the achievable acceleration is greater than the factored acceleration limit and where the gearbox is shifted down to the low primary gear (118) if the achievable acceleration is equal to or smaller than the factored acceleration limit.

Apparatus (1) for transmitting power from a power generating device (100) to an electrical machine (110) suitable to be installed onboard a motor vehicle, the apparatus (1) comprising: - a power take-off, PTO, device (3) which comprises a gear wheel (3) which is suitable to receive rotary power from the power generating device (100); - a power transmission (4) which is suitable to receive rotary power from said gear wheel (3) and to transfer at least part of the received rotary power to the electrical machine (110); - a decoupler (10) that is interconnected between and transfers rotary power from the gear wheel (3) in input to the power transmission (4), wherein the decoupler (10) is at least partially fitted inside said gear wheel (3) and reduces the torque amplitude transmitted in input to the power transmission (4) relative to the torque amplitude received in input by the gear wheel (3) from the power generating device (100).

A shaft assembly (17) including a shaft (19), a gear assembly (49), comprising a first gearwheel (51) and a second gearwheel (63) locked in rotation relative to each other. The shaft assembly includes a first cylindrical joint, comprising a first cylindrical section (25), integral to the shaft, and a first central opening (53), integral to the first gearwheel, the first gearwheel being mounted on the shaft via the first central opening, a second cylindrical joint, comprising a second cylindrical section (31), integral to the shaft, and a second central opening (65), the second gearwheel being mounted on the shaft via the second central opening, and a spline joint (37), comprising a first part (35), integral to the shaft, and a second part (50), integral to the gear assembly, engaged with the first part so that the first gearwheel and the second gearwheel are locked in rotation with the shaft.

A computer-implemented method controls at least one park brake relay valve (64) of a park brake system (66) of a vehicle (20), via control signals (S₅₁) sent to a park brake control unit (62), which controls the park brake relay valve, based on requests signals (S₅₂, S₅₄, S₅₆) received from at least one requester (52, 54, 56). The request signals take either an activated value, when the request is presented, or a neutral value, when the request is not presented. The request signals are sent with a given signal frame. The method comprises a safety check performed, when a request signal (S₅₂, S₅₄, S₅₆) is received, by a request arbitrator (70) to assess if the request is valid, by determining whether or not the request signal is longer than a first predetermined time-period (Δt1) and whether or not, during a second predetermined time-period (Δt2), the request signal takes the neutral value.

A mechanical transmission system (21) for a powertrain (7) of a vehicle (1), the mechanical transmission system comprising an automated gearbox (23) comprising different gears, the gears switched between different configurations, in each configuration a gear associated to the given configuration is configured to connect a primary part (11) of the powertrain to a secondary part (15) of the powertrain with a transmission coefficient associated, a pressurized air system (25) adapted to switch the gears from one configuration to another configuration and a controller (37) commanding the switching of the gears between the different configurations according to gear selection rules. The gear selection rules evolve between normal selection rules when a pressure of the pressurized air system is above a first threshold and safety selection rules when the pressure is below the first threshold, the safety selection rules imposing a waiting time between two successive switching of the gears.

A valve system (10) including a first valve body (20) defining an outlet (24) configured to distribute a fluid; a second valve body (22) configured to be received within the first valve body and to be transitioned between at least a first position corresponding to a fully-open state of the valve system and a second position corresponding to a closed state of the valve system; a motor (40) configured to transition the second valve body between the first position and the second position by rotating a shaft (42) about an axis of rotation (A-R) in a series of angular steps; and a control unit (60) configured to operate the motor to transition the second valve body between the first position and the second position.

The present disclosure relates to a control unit (16, 200) for a vehicle (3), the vehicle being a full electric or a hybrid vehicle, the control unit (16, 200) comprising a communication interface (17, 226) and processing circuitry (18, 202) being coupled to the communication interface; the processing circuitry (18, 202) being adapted to receive, via the communication interface (17, 226), a message from a remote control device (20) to drive the vehicle a predefined distance, to command the gearbox (12) to engage with the highest available ratio, to command the at least one electric motor (10) in order to move the vehicle, to stop the motor when the vehicle has traversed the predefined distance, and to command to engage the at least one brake (8).

An ignition system (10) including an injection member (20) configured to deliver fuel to an ignition zone (140) within a combustion chamber, an ignition element (40) configured to ignite fuel within the ignition zone, and a control unit (60) configured to operate the injection member and the ignition element in a first ignition phase including ignition of a first delivery of fuel provided to the combustion chamber by the injection member and a second ignition phase including ignition of a second delivery of fuel provided to the combustion chamber by the injection member.

A method and a tooling for dismounting a cassette seal (32) having a radially inner ring (34) mounted on a rotative shaft (12) and a radially outer ring (38) mounted in a receiving static bore (24), characterized in that the method (100) for dismounting said cassette seal (32) includes at least:- a pressing step comprising displacing a first of said radially inner and outer rings (34, 38) with respect to its respective cylindrical support surface (36, 40), along a first axial direction along the main axis (A1);- an extraction step, subsequent to the pressing step, comprising displacing the second of said radially inner and outer rings (34, 38) with respect to its respective cylindrical support surface (36, 40), along a second axial direction opposite to said first axial direction along the main axis (A1).

A fuel consumption optimization system (10) including a control unit (60) configured to operate a power unit (20) in a first measurement phase including activation of a first combustion chamber (28) and deactivation of a second combustion chamber (28) and a second measurement phase including deactivation of the first combustion chamber and activation of the second combustion chamber; a measurement unit (80) configured to determine a first measurement corresponding to the first combustion chamber and a second measurement corresponding to the second combustion chamber; and wherein the control unit is configured to operate the power unit in an optimization phase including operation of one or more of the first combustion chamber in correlation with one or more of the first measurement and the second measurement and the second combustion chamber in correlation with one or more of the first measurement and the second measurement.

The present disclosure relates to a powertrain system (10) for a vehicle (1), the powertrain system comprising an internal combustion engine (20) operable on a gaseous fuel; a gaseous fuel tank system (17) having a set of gaseous fuel tanks (17a to 17n) for storing pressurized gaseous fuel, the gaseous fuel tank system being configured to be in fluid communication with the engine; a compressor assembly (8) for pressurizing gaseous fuel, wherein the powertrain system is operable in a first powertrain operational mode where gaseous fuel is supplied from at least one of the gaseous fuel tanks to the engine in a non-operational mode of the compressor assembly, and in a second powertrain operational mode where gaseous fuel from at least one of the gaseous fuel tanks is pressurized by the compressor assembly in an operational mode of the compressor assembly and supplied to the engine; a controller (80) configured to predict an expected operational change of the powertrain system based on route information describing at least one route segment (224) for an intended route of the vehicle, determine to control the compressor assembly based on the predicted expected operational change.

A support system (30) of a wiper mechanism (15) for a curved windscreen (10) of a vehicle (1) comprising a first linkage part (35) and rotating to generate a wiping movement of a wiper arm (80), a second linkage part (55) coupled to the first linkage part and rotating in relation to the first linkage part. The wiper arm is coupled to the second linkage part, supports a wiper (125) and rotates in relation to the second linkage part. The support system comprises an elastically deformable element (110), coupled to the first linkage part and the second linkage part. The elastically deformable element applies a first torque rotating the second linkage part with respect to the first linkage part, when the wiper of the wiper mechanism is on a curved surface portion (25) of the windscreen, otherwise there is no rotation on a flat surface portion (20) of the windscreen.

A cell swelling compensator for a battery unit, comprising one or more resilient elements adapted to be arranged between a first cell stack and a structure of the battery unit such that said cell swelling compensator is arranged between the first cell stack and the structure for exerting a force onto first cell stack for compensating for cell swelling in the first cell stack.

A method for controlling a motor comprising a stator and permanent magnets, the method comprising following steps: providing (S17) input data, calculating (S19) a calculated magnetic flux of the motor, the calculated magnetic flux being calculated based on an initial voltage and an actual current, currently applied to the motor, computing (S21) a new current reference based on the calculated magnetic flux and the input data, and applying (S23) a new voltage to the motor based on the new current reference so that the actual current applied to the motor reaches the new current reference.

The invention relates to a curtain airbag system (11) comprising a curtain airbag (17) and an airbag support (19).The curtain airbag (17) is configured to be inflated between a folded configuration, in which it does not cover a door arrangement (7), and a deployed configuration, in which it covers at least partially the door arrangement (7). It comprises a first airbag portion, configured to cover at least partially the door arrangement (7) when the curtain airbag (17) is in the deployed configuration, and a second airbag portion, configured to cover a display screen (9) when the curtain airbag (17) is in the deployed configuration.The airbag support (19) is configured to store the curtain airbag (17) when in the folded configuration.

A method for providing sound reduction of a vehicle component being a sound emitting source (12, 22, 122), the method comprising: providing (S10) a first sound insulation module (110) composed of a first material (M1) and having a first thickness (Th1) for achieving a first sound-reducing capability with regards to sound level (dB) and frequency (Hz) of the emitted sound, and a second sound insulation module (112) composed of a second material (M2) and a having second thickness (Th2) for achieving a second sound-reducing capability with regards to sound level (dB) and frequency (Hz) of the emitted sound; attaching (S40) the first and second sound insulation modules (110, 112) onto the attachment structure (105) of the carrier (101) such that a first portion (101a) of the carrier (101) is provided with the first sound insulation module (110) and a second portion (101b) of the carrier (101) is provided with the second sound insulation module (112).

An electric powertrain (200) for a vehicle, comprising an electric machine (10), a transmission (220), and at least one drive shaft (90L), the transmission comprising: - first and second planetary gear systems (250, 260), wherein at least one of a second sun gear (261) and a second ring gear (264) is rotationally connected or connectable to a first planet gear carrier (252), - a primary reduction gear set (230) drivingly connecting the electric machine to the first planetary gear system, one of the first and second planetary gear systems (250) being shiftable to any one of two reducing gear states, and the other one of the first and second planetary gear systems (260) being shiftable to any one of a gear state with a direct gear ratio and a reducing gear state, a primary reduction gearwheel (232) and the planetary gear systems being coaxial with the drive shaft.

A coolant manifold (100) connectable to a cooling system (102) of an electrical energy storage pack (104), the coolant manifold comprising: a coolant channel (110) comprising a main channel (112) and a set of distribution channels (114) fluidly connected with the main channel (112) and configured to be fluidly connected with the cooling system (102), a container (116) configured to hold the coolant channel, the container comprising a base (118) configured to hold the main channel (112), and a set of extensions (120) from the base (118) configured to hold the distribution channels (114) of the coolant channel (110), the extensions each having an end opening (122) opposite from the base; a lid (126) configured to cover an opening (124) of at least the base (118) of the container (116); a set of end caps (130) configured to seal the end openings (122) of the extensions (120) of the container (116), and to partly overlap with the lid, and a sealant that at least partly fills a space inside the container (116).

A computer-implemented method for detecting risk of upcoming tip-over for a vehicle is disclosed. The method comprises acquiring (by processing circuitry of a computer system) normal force(s) of the vehicle, comprising a rear wheel normal force, and detecting (by the processing circuitry) risk of upcoming tip-over responsive to the normal force(s) fulfilling a normal force condition. The method may also comprise acquiring a pitch angle of the vehicle, and detecting the risk of upcoming tip-over may be further responsive to the pitch angle fulfilling a pitch angle condition. The method may also comprise causing a tip-over mitigation action to be performed responsive to detection of the risk of upcoming tip-over. The normal force condition may vary dynamically (e.g., based on load mass, load position, ground surface banking, vehicle width, oscillation of lifted load, etc.). Corresponding computer system, vehicle, computer program product, and non-transitory computer-readable storage medium are also disclosed.

A computer system (400) is provided, including processing circuitry (410) configured to: receive angular velocity data indicative of roll and pitch angular velocities (θ̇, ω̇)) of a leaf spring-suspended bogie of a heavy-duty vehicle; receive deflection data indicative of deflection (d) of leaf springs of the bogie, and detect a failure of at least one leaf spring used to suspend the bogie based on the received angular velocity data and deflection data. In some examples, deflection is indicative of leaf spring failure only if angular velocity data indicates that the bogie is stable and not moving due to e.g. uneven road conditions or undulating road profiles. A corresponding vehicle, computer-implemented method, computer program product and computer-readable storage medium are also provided.

The invention provides for a bracket (22) for connecting a cabin (13) to a chassis (11) of a heavy-duty vehicle (10), wherein the bracket (22) comprises a main plate (24) having a cabin attachment portion (26) for connecting to the cabin (13) and a chassis attachment portion (28) for connecting to the chassis (13), wherein the main plate (24) of the bracket (22) comprises an embossment (42) which is embossed perpendicularly to the main plate (24), which is located between the cabin attachment portion (26) and the chassis attachment portion (18) of the main plate (30), and which extends along an embossment line (42L) from or proximate from a rear edge (32, 36) of the bracket (22), towards a front edge (30, 34) of the bracket (22). The invention also provides for a heavy-duty vehicle equipped with such bracket for connecting a cabin (13) to a chassis (11).

The present disclosure relates to a computer system comprising processing circuitry configured to control charging of a high-voltage energy storage system of a vehicle in response to a mean value of a maximum allowable charge levels for downhill slopes having a probability factor comprised in a first set of probability factors.

The present disclosure relates to a computer system for enabling authentication and authorization of charging an at least partly electrically driven vehicle (100). The computer system comprises processing circuitry configured to:- determine if at least one charging station (103) associated with the vehicle supports a PnC (plug and charge) feature for authentication and authorization of charging of the vehicle (100);- when the at least one charging station (103) supports the PnC feature, determine that the vehicle (100) comprises one or more than one charging certificate that is compatible with the at least one charging station (103) supporting the PnC feature;- determine a possibility of success for each pair of charging station (103) and charging certificate when the vehicle (100); and to- select the pair having the highest possibility of success to be used for charging the vehicle (100).

A computer system (100; 800) for privilege-based battery pack data transmission, the computer system (100; 800) comprising processing circuitry (102; 802) configured to authenticate a portable client device (10) in response to said portable client device (10) being within an identifiable distance (d) of a battery pack (20); based on the authentication, obtain a privilege level (12) of the portable client device (10), wherein the obtained privilege level (12) indicates battery pack data (30) allowed to be transmitted from the battery pack (20) to the portable client device (10); and cause wireless transmission of said battery pack data (30) from the battery pack (20) to the portable client device (10) based on the obtained privilege level (12).

A method for controlling a powertrain (7) of a vehicle (1), the powertrain comprising a device (11) for converting energy for driving wheels (4), an engine (15), configured for providing energy to the device, a kinetic energy recovery system (17) switching between a suppling configuration in which the kinetic energy recovery system provides energy and a charging configuration in which the kinetic energy recovery system is charged. The powertrain switches between a regenerative configuration in which the kinetic energy recovery system is in the charging configuration and the device is powered by the engine, and a powered configuration in which the kinetic energy recovery system is in the supplying configuration. The method comprises at least one regeneration-power cycle, comprising the steps of controlling the powertrain in the regenerative configuration, switching the powertrain from the regenerative configuration to the powered configuration; and controlling the powertrain in the powered configuration.

The invention concerns a fuel supply system (1) for supplying high-pressure gaseous hydrogen fuel to an internal combustion engine (10), the system (1) comprising: a hydrogen fuel tank arrangement (2, 3) and a fuel delivery line (4) arranged to deliver gaseous hydrogen from the hydrogen fuel tank arrangement (2, 3) to the internal combustion engine (10), wherein the hydrogen fuel tank arrangement comprises at least one gas-phase tank (2) configured to contain high-pressure gas-phase hydrogen and at least one liquid tank (3) configured to contain liquid hydrogen, wherein a controllable heater (5, 6) is arranged in association with the at least one liquid tank (3) so as to heat and vaporize the liquid hydrogen when activating the heater (5, 6), wherein the system (1) is configured to direct the heated and vaporized hydrogen into the fuel delivery line (4) as a complement or alternative to hydrogen gas directed into the fuel delivery line (4) from the gas-phase tank (2).

An electrical machine system (10), comprising: an electrically excited synchronous machine (20) comprising a stator (220) having a plurality of stator windings (222), and a rotor (230) having a plurality of rotor windings (236), a transformer (240) comprising a stationary primary winding (242) and a secondary winding (244) arranged on the rotor (230); wherein the electrically excited synchronous machine (20) further comprises a voltage pulse width modulator (246) configured to receive a control signal (|v|*) used to control the field currents of the rotor windings (236); wherein the electrical machine system (10) further comprises an inverter (30) connected to the stator (220) and configured to supply phase currents (ia, ib, ic) to the stator windings (222); and wherein the inverter (30) is further configured to provide the control signal (|v|*) to the voltage pulse width modulator (246).

A computer system (1000) comprising processing circuitry (1002) configured to determine whether a combination vehicle (1) is unstable is provided. The combination vehicle (1) comprises a tractor (10) and a plurality of trailers (12). The plurality of trailers (12) comprises a first trailer (11). The processing circuitry (1002) is configured to obtain vehicle condition signals indicative of a status of the combination vehicle (1). The processing circuitry (1002) is configured to obtain relative positions of the first trailer (11), relative to the tractor (10). The processing circuitry (1002) is configured to, estimate a motion (m1, m2) of the plurality of trailers (12). based on the relative positions of the first trailer (11) and the status of the combination vehicle (1).The processing circuitry (1002) is configured to, determine whether or not the combination vehicle (1) is unstable based on the estimated motion (m1, m2) of the plurality of trailers (12).

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The invention relates to a computer-implemented method performed for alerting the presence of one or more combination vehicles. Each combination vehicle out of the one or more combination vehicles comprises a first vehicle unit and one or more second vehicle units. The one or more combination vehicles is provided with a plurality of alerting units. Each respective first vehicle unit and respective one or more second vehicle units comprises a respective alerting unit out of the plurality of alerting units. The method comprises obtaining (301) movement data from at least one data communicating unit comprised in any one of the one or more combination vehicles. The movement data is indicative of one or both of a current movement or an expected movement of the one or more combination vehicles. The method further comprises, based on the obtained movement data, determining the current movement and/or the expected movement of the one or more combination vehicles. The method further comprises, when any one or both of the current movement and the expected movement is non-zero, and when any one or both of the current movement and the expected movement of the one or more combination vehicles is/are less than at least one predetermined threshold, triggering a sound alert on the plurality of alerting units.

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