Described herein is a gearbox for an electric vehicle drivetrain unit comprising a gearbox enclosure, a support rod, a first piston, a second piston, and various hydraulic fluid passages. The support rod extends into the gearbox enclosure and at least partially protrudes/extends into the first and second pistons. The first piston, second piston, and support rod are fluidically connected with the hydraulic fluid passages such that when the gearbox is in a neutral gear, pressurized hydraulic fluid forces the first piston and the second piston against the support rod. When the gearbox is in a first gear, pressurized hydraulic fluid forces the support rod against the gearbox enclosure either directly or through the first piston. When the gearbox is in a second gear, pressurized hydraulic fluid forces the support rod against the gearbox enclosure directly or through the second piston. Also described are electric vehicles and shifting methods.
F16H 57/02 - Boîtes de vitessesMontage de la transmission à l'intérieur
H02K 7/116 - Association structurelle avec des embrayages, des freins, des engrenages, des poulies ou des démarreurs mécaniques avec des engrenages
F16H 57/04 - Caractéristiques relatives à la lubrification ou au refroidissement
B60K 17/06 - Agencement ou montage des transmissions sur les véhicules caractérisées par la disposition, l'emplacement ou le type de mécanisme de transmission du changement de vitesse
A foldable non-highway electric vehicle (EV) for recreational use. The non-highway EV may include a chassis and a foldable battery module coupled to the chassis. The foldable battery module may fold to a position to allow portable transport of the non-highway EV. Suspension may control movement of the wheels relative to the chassis. The suspension may also be set in a plurality of different configurations, including a configuration where the suspension is set in a transport position. With the battery folded and the suspension set in the transport position, the footprint of the non-highway EV may be significantly reduced, to allow for convenient transportation of the non-highway EV.
B60K 1/02 - Agencement ou montage des ensembles de propulsion électriques comprenant plus d'un moteur électrique
B60G 3/20 - Suspensions élastiques pour une seule roue avec plusieurs bras articulés, p. ex. parallélogramme tous les bras étant rigides
B60G 13/02 - Suspensions élastiques caractérisées par la disposition, l'emplacement ou le type des amortisseurs de vibrations ayant des amortisseurs dissipant l'énergie, p. ex. à friction
B60K 1/04 - Agencement ou montage des ensembles de propulsion électriques des dispositifs d'emmagasinage de l'énergie électrique pour la propulsion
B60K 7/00 - Disposition du moteur dans ou jouxtant une roue motrice
B60L 50/60 - Propulsion électrique par source d'énergie intérieure au véhicule utilisant de la puissance de propulsion fournie par des batteries ou des piles à combustible utilisant de l'énergie fournie par des batteries
B60N 2/30 - Sièges indémontables susceptibles d'être gardés dans une position de non-utilisation, p. ex. strapontins
B62D 5/04 - Direction assistée ou à relais de puissance électrique, p. ex. au moyen d'un servomoteur relié au boîtier de direction ou faisant partie de celui-ci
B60G 11/00 - Suspensions élastiques caractérisées par la disposition, l'emplacement ou le type des ressorts
A foldable non-highway electric vehicle (EV) for recreational use. The non-highway EV may include a chassis and a foldable battery module coupled to the chassis. The foldable battery module may fold to a position to allow portable transport of the non-highway EV. Suspension may control movement of the wheels relative to the chassis. The suspension may also be set in a plurality of different configurations, including a configuration where the suspension is set in a transport position. With the battery folded and the suspension set in the transport position, the footprint of the non-highway EV may be significantly reduced, to allow for convenient transportation of the non-highway EV.
Described herein are swappable battery modules comprising immersion-thermally controlled prismatic battery cells and methods of operating thereof. A method comprises positioning a swappable battery module on a battery dock comprising dock fluidic ports and sliding the swappable battery module to the dock fluidic ports until these dock's ports are fluidically coupled with the module's fluidic ports. Specifically, the dock comprises an enclosure and a module support rail slidably coupling the swappable battery module and the enclosure. The module support rail comprises a rail base, a first slider, a second slider, and a lever-based unit, interconnecting the rail base and both sliders. The rail base is fixed to the enclosure, while the second slider is detachably coupled to the module. The two sliders move at different speeds or at the same speed relative to the dock base depending on the proximity of the first end plate to the dock base.
H01M 10/42 - Procédés ou dispositions pour assurer le fonctionnement ou l'entretien des éléments secondaires ou des demi-éléments secondaires
H01M 10/613 - Refroidissement ou maintien du froid
H01M 10/647 - Éléments prismatiques ou plans, p. ex. éléments de type poche
H01M 50/209 - Bâtis, modules ou blocs de multiples batteries ou de multiples cellules caractérisés par leur forme adaptés aux cellules prismatiques ou rectangulaires
H01M 50/244 - Boîtiers secondairesBâtisDispositifs de suspensionDispositifs de manutentionSupports caractérisés par leur procédé de montage
H01M 50/258 - Batteries modulairesBoîtiers pourvus de moyens d’assemblage
H01M 50/367 - Passages internes d’évacuation des gaz dans le couvercle ou le boîtier de la batterieSystèmes d’évent à double couvercle
H01M 50/507 - Interconnecteurs pour connecter les bornes des batteries adjacentesInterconnecteurs pour connecter les cellules en dehors d'un boîtier de batterie comprenant un arrangement de plusieurs barres omnibus réunies dans une structure de conteneur, p. ex. modules de barres omnibus
H01M 50/55 - Bornes caractérisées par la position des terminaux sur les cellules sur le même côté de la cellule
H05K 7/20 - Modifications en vue de faciliter la réfrigération, l'aération ou le chauffage
5.
Compact high-power DC-to-DC converters with out-of-phase converter units and multiple cooling types
Described herein are DC-DC converters with a ratio of the power output to volume of at least 2 kW per liter or even at least 4 kW per liter. Such DC-DC converters can operate at power levels of at least 150 kW or even at least 200 kW. A DC-DC converter comprises an enclosure and a front plate sealed against the enclosure using a set of fasteners. The DC-DC converter also comprises a converter unit comprising a switching sub-module, a diode sub-module, and an inductor as well as an additional converter unit comprising an additional switching sub-module, an additional diode sub-module, and an additional inductor. The switching sub-module and the additional switching sub-module or, more generally, the converter unit and the additional converter unit are configured to operate out of phase. The inductors are immersed cooled, the switching sub-modules are conductively cooled, while the diode sub-modules are convectively cooled.
Described herein are vehicle charging systems, each comprising a recharge vehicle and a work vehicle configured to form an electrical connection and charge the work vehicle battery from the recharge vehicle battery. In some examples, this charging is performed at 500kW or more or even at 1,000kW or more. Furthermore, the connection and/or charging can be performed while both vehicles are moving (e.g., the recharge vehicle moving in front of the work vehicle). The recharge vehicle comprises one or more DC-DC converters, configured to boost a first voltage (V1) of the recharge vehicle battery to a second voltage (V2) of the work vehicle battery. It should be noted that these voltages vary depending on the state of charge of these batteries. In some examples, each DC-DC converter utilizes a combination of immersion, conductive, and convective cooling for different components of the converter.
Described herein are low-noise electric lawnmowers comprising curved cutting blades and methods of operating thereof. In some examples, a lawnmower comprises a driving unit and a mowing unit with a mowing-unit deck. The mowing-unit deck comprises a set of blade units (e.g., 3 units) and a discharge conduit. Each blade unit comprises a blade enclosure and a cutting blade with a cutting edge having a curved shape. For example, the cutting edge, at a point furthest away from the blade center axis, may form an approach angle of greater than 90° but be less than 90° closer to the blade center. This curving aspect allows operating the blade at lower rotating speeds (e.g., less than 3,000 RPM), which reduces the turbulence and noise. In some examples, the blade enclosure forms an enclosure tunnel such that the tunnel's cross-sectional area increases from the tunnel's inlet to the outlet.
A01D 34/66 - FaucheusesAppareils de fauchage des moissonneuses caractérisés par des particularités relatives au type d'appareil de coupe comportant des couteaux rotatifs comportant des couteaux tournant autour d'un axe vertical montés sur un véhicule, p. ex. un tracteur, ou tirés par un animal ou un véhicule à plusieurs couteaux
Low-noise electric lawnmowers comprise curved cutting blades. In some examples, a lawnmower comprises a driving unit and a mowing unit with a mowing-unit deck. The mowing-unit deck comprises a set of blade units (e.g., 3 units) and a discharge conduit. Each blade unit comprises a blade enclosure and a cutting blade with a cutting edge having a curved shape. For example, the cutting edge, at a point furthest away from the blade center axis, may form an approach angle of greater than 90° but be less than 90° closer to the blade center. This curving aspect allows operating the blade at lower rotating speeds (e.g., less than 3,000 RPM), which reduces the turbulence and noise. In some examples, the blade enclosure forms an enclosure tunnel such that the tunnel's cross-sectional area increases from the tunnel's inlet to the outlet.
Described herein are swappable battery modules comprising immersion-thermally controlled prismatic battery cells and methods of operating thereof. A method comprises positioning a swappable battery module on an external charger comprising charger fluidic ports and sliding the swappable battery module to the charger fluidic ports until these charger's ports are fluidically coupled with the module's fluidic ports. Specifically, the external charger comprises an enclosure and a module support rail slidably coupling the swappable battery module and the enclosure. The module support rail comprises a rail base, a first slider, a second slider, and a lever-based unit, interconnecting the rail base and both sliders. The rail base is fixed to the enclosure, while the second slider is detachably coupled to the module. The two sliders move at different speeds or at the same speed relative to the charger base depending on proximity of the first end plate to the charger base.
H01M 10/6568 - Liquides caractérisés par des circuits d'écoulement. p. ex. boucles, situés à l'extérieur des éléments ou des boîtiers des éléments
H01M 10/42 - Procédés ou dispositions pour assurer le fonctionnement ou l'entretien des éléments secondaires ou des demi-éléments secondaires
H01M 50/209 - Bâtis, modules ou blocs de multiples batteries ou de multiples cellules caractérisés par leur forme adaptés aux cellules prismatiques ou rectangulaires
H01M 50/258 - Batteries modulairesBoîtiers pourvus de moyens d’assemblage
H01M 50/367 - Passages internes d’évacuation des gaz dans le couvercle ou le boîtier de la batterieSystèmes d’évent à double couvercle
H01M 50/507 - Interconnecteurs pour connecter les bornes des batteries adjacentesInterconnecteurs pour connecter les cellules en dehors d'un boîtier de batterie comprenant un arrangement de plusieurs barres omnibus réunies dans une structure de conteneur, p. ex. modules de barres omnibus
H01M 50/55 - Bornes caractérisées par la position des terminaux sur les cellules sur le même côté de la cellule
10.
ELECTRICAL VEHICLES COMPRISING POWER DISTRIBUTION SYSTEMS AND METHODS OF OPERATING THEREOF
Described herein are electric vehicles comprising power distribution systems and methods of operating thereof. Specifically, a power distribution system is mechanically coupled to an electric motor, a road wheel, and an auxiliary unit. This system is configured to switch among multiple operating modes and selectively transfer mechanical power among the electric motor, wheel, and auxiliary unit. For example, the power distribution system is configured to transfer mechanical power between the electric motor and the road wheel, but not the auxiliary unit, when switched to a wheel operating mode. The power distribution system is configured to transfer mechanical power between the electric motor and the auxiliary unit, but not the road wheel, when switched to an auxiliary operating mode. The power distribution system is configured to transfer mechanical power between the electric motor, the auxiliary unit, and the road wheel when the system is switched to a combined operating mode.
B60W 30/182 - Sélection entre plusieurs modes opératoires, p. ex. confort ou sportif
B60L 1/00 - Fourniture de l'énergie électrique à l'équipement auxiliaire des véhicules à traction électrique
B60L 15/20 - Procédés, circuits ou dispositifs pour commander la propulsion des véhicules à traction électrique, p. ex. commande de la vitesse des moteurs de traction en vue de réaliser des performances désiréesAdaptation sur les véhicules à traction électrique de l'installation de commande à distance à partir d'un endroit fixe, de différents endroits du véhicule ou de différents véhicules d'un même train pour la commande du véhicule ou de son moteur en vue de réaliser des performances désirées, p. ex. vitesse, couple, variation programmée de la vitesse
B60W 10/02 - Commande conjuguée de sous-ensembles de véhicule, de fonction ou de type différents comprenant la commande d'accouplements de la chaîne cinématique
B60W 10/08 - Commande conjuguée de sous-ensembles de véhicule, de fonction ou de type différents comprenant la commande des ensembles de propulsion comprenant la commande des unités de traction électrique, p. ex. des moteurs ou des générateurs
B60W 10/10 - Commande conjuguée de sous-ensembles de véhicule, de fonction ou de type différents comprenant la commande des boîtes de vitesses
B60K 1/02 - Agencement ou montage des ensembles de propulsion électriques comprenant plus d'un moteur électrique
B60K 1/04 - Agencement ou montage des ensembles de propulsion électriques des dispositifs d'emmagasinage de l'énergie électrique pour la propulsion
11.
Electrical vehicles comprising power distribution systems and methods of operating thereof
Described herein are electric vehicles comprising power distribution systems and methods of operating thereof. Specifically, a power distribution system is mechanically coupled to an electric motor, a road wheel, and an auxiliary unit. This system is configured to switch among multiple operating modes and selectively transfer mechanical power among the electric motor, wheel, and auxiliary unit. For example, the power distribution system is configured to transfer mechanical power between the electric motor and the road wheel, but not the auxiliary unit, when switched to a wheel operating mode. The power distribution system is configured to transfer mechanical power between the electric motor and the auxiliary unit, but not the road wheel, when switched to an auxiliary operating mode. The power distribution system is configured to transfer mechanical power between the electric motor, the auxiliary unit, and the road wheel when the system is switched to a combined operating mode.
B60K 1/04 - Agencement ou montage des ensembles de propulsion électriques des dispositifs d'emmagasinage de l'énergie électrique pour la propulsion
B60K 1/02 - Agencement ou montage des ensembles de propulsion électriques comprenant plus d'un moteur électrique
B60W 10/08 - Commande conjuguée de sous-ensembles de véhicule, de fonction ou de type différents comprenant la commande des ensembles de propulsion comprenant la commande des unités de traction électrique, p. ex. des moteurs ou des générateurs
B60W 10/10 - Commande conjuguée de sous-ensembles de véhicule, de fonction ou de type différents comprenant la commande des boîtes de vitesses
B60W 10/12 - Commande conjuguée de sous-ensembles de véhicule, de fonction ou de type différents comprenant la commande des différentiels
Described herein are immersion-cooled axial flux electric motors and methods of operating thereof. An immersion-cooled axial flux electric motor comprises a rotor and an immersion-cooled stator. The rotor comprises a set of magnets and a magnet support plate extending perpendicular to the motor axis. The set of magnets is attached to the magnet support plate and distributed about on the motor axis. The immersion-cooled stator comprises a cooling-fluid inlet, a cooling-fluid outlet, a set of stator windings, and a stator-sealed space. The set of stator windings is positioned within the stator-sealed space proximate to the set of magnets such that during the operation of the motor magnetic flux between the set of stator windings and the set of magnets is aligned substantially parallel to the axis of rotation of the rotor. The cooling-fluid inlet and the cooling-fluid outlet are fluidically coupled to the stator-sealed space.
H02K 9/19 - Dispositions de refroidissement ou de ventilation pour machines avec enveloppe fermée et circuit fermé de refroidissement utilisant un agent de refroidissement liquide, p. ex. de l'huile
B60H 1/00 - Dispositifs de chauffage, de refroidissement ou de ventilation
H02K 5/22 - Parties auxiliaires des enveloppes non couvertes par les groupes , p. ex. façonnées pour former des boîtes à connexions ou à bornes
H02K 9/197 - Dispositions de refroidissement ou de ventilation pour machines avec enveloppe fermée et circuit fermé de refroidissement utilisant un agent de refroidissement liquide, p. ex. de l'huile dans lesquels l'espace du rotor ou du stator est étanche au fluide, p. ex. pour pourvoir le rotor et le stator d'agents de refroidissement différents
13.
BATTERY MODULES WITH INTEGRATED MODULE CONVERTERS AND METHODS OF OPERATING THEREOF
Described herein are battery modules comprising integrated module converters, electric-vehicle battery systems comprising such modules, and methods of operating thereof. An electric-vehicle battery system comprises a high-voltage battery pack and high-voltage contactors that controllably isolate the pack's high-voltage area from other areas in the vehicle. The pack comprises multiple battery modules with battery cells and a primary module converter constantly connected to these cells. Each module has a lower voltage than the entire pack. The power output from the primary module converters is used to operate a battery controller and to close/activate the contactors in response to the switch position (e.g., an ignition switch). The primary module converters can be either constantly activated or controllably activated in response to the switch moving into an activated position. For example, a secondary module converter, with a lower power rating, can be used for this primary module converter activation.
B60L 58/21 - Procédés ou agencements de circuits pour surveiller ou commander des batteries ou des piles à combustible, spécialement adaptés pour des véhicules électriques pour la surveillance et la commande des batteries de plusieurs modules de batterie ayant la même tension nominale
B60L 50/64 - Détails de construction des batteries spécialement adaptées aux véhicules électriques
B60L 58/22 - Équilibrage de la charge des modules de batterie
H01M 10/48 - Accumulateurs combinés à des dispositions pour mesurer, tester ou indiquer l'état des éléments, p. ex. le niveau ou la densité de l'électrolyte
14.
BATTERY MODULES WITH INTEGRATED MODULE CONVERTERS AND METHODS OF OPERATING THEREOF
Described herein are battery modules comprising integrated module converters, electric-vehicle battery systems comprising such modules, and methods of operating thereof. An electric-vehicle battery system comprises a high-voltage battery pack and high-voltage contactors that controllably isolate the pack's high-voltage area from other areas in the vehicle. The pack comprises multiple battery modules with battery cells and a primary module converter constantly connected to these cells. Each module has a lower voltage than the entire pack. The power output from the primary module converters is used to operate a battery controller and to close/activate the contactors in response to the switch position (e.g., an ignition switch). The primary module converters can be either constantly activated or controllably activated in response to the switch moving into an activated position. For example, a secondary module converter, with a lower power rating, can be used for this primary module converter activation.
B60L 58/18 - Procédés ou agencements de circuits pour surveiller ou commander des batteries ou des piles à combustible, spécialement adaptés pour des véhicules électriques pour la surveillance et la commande des batteries de plusieurs modules de batterie
H02M 3/00 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu
H01M 50/502 - Interconnecteurs pour connecter les bornes des batteries adjacentesInterconnecteurs pour connecter les cellules en dehors d'un boîtier de batterie
A foldable non-highway electric vehicle (EV) for recreational use. The non-highway EV may include a chassis and a foldable battery module coupled to the chassis. The foldable battery module may fold to a position to allow portable transport of the non-highway EV. Suspension may control movement of the wheels relative to the chassis. The suspension may also be set in a plurality of different configurations, including a configuration where the suspension is set in a transport position. With the battery folded and the suspension set in the transport position, the footprint of the non-highway EV may be significantly reduced, to allow for convenient transportation of the non-highway EV.
B60K 1/04 - Agencement ou montage des ensembles de propulsion électriques des dispositifs d'emmagasinage de l'énergie électrique pour la propulsion
B60G 3/20 - Suspensions élastiques pour une seule roue avec plusieurs bras articulés, p. ex. parallélogramme tous les bras étant rigides
B60G 13/02 - Suspensions élastiques caractérisées par la disposition, l'emplacement ou le type des amortisseurs de vibrations ayant des amortisseurs dissipant l'énergie, p. ex. à friction
B60K 1/02 - Agencement ou montage des ensembles de propulsion électriques comprenant plus d'un moteur électrique
B60K 7/00 - Disposition du moteur dans ou jouxtant une roue motrice
B60L 50/60 - Propulsion électrique par source d'énergie intérieure au véhicule utilisant de la puissance de propulsion fournie par des batteries ou des piles à combustible utilisant de l'énergie fournie par des batteries
B60N 2/30 - Sièges indémontables susceptibles d'être gardés dans une position de non-utilisation, p. ex. strapontins
B62D 5/04 - Direction assistée ou à relais de puissance électrique, p. ex. au moyen d'un servomoteur relié au boîtier de direction ou faisant partie de celui-ci
B60G 11/00 - Suspensions élastiques caractérisées par la disposition, l'emplacement ou le type des ressorts
16.
SWAPPABLE BATTERY MODULES COMPRISING IMMERSION-THERMALLY CONTROLLED PRISMATIC BATTERY CELLS AND METHODS OF FABRICATING THEREOF
Described herein are swappable battery modules comprising immersion-thermally controlled prismatic battery cells and methods of operating thereof. A method comprises positioning a swappable battery module on an external charger comprising charger fluidic ports and sliding the swappable battery module to the charger fluidic ports until these charger's ports are fluidically coupled with the module's fluidic ports. Specifically, the external charger comprises an enclosure and a module support rail slidably coupling the swappable battery module and the enclosure. The module support rail comprises a rail base, a first slider, a second slider, and a lever-based unit, interconnecting the rail base and both sliders. The rail base is fixed to the enclosure, while the second slider is detachably coupled to the module. The two sliders move at different speeds or at the same speed relative to the charger base depending on proximity of the first end plate to the charger base.
H01M 10/6568 - Liquides caractérisés par des circuits d'écoulement. p. ex. boucles, situés à l'extérieur des éléments ou des boîtiers des éléments
H01M 10/613 - Refroidissement ou maintien du froid
H01M 50/553 - Bornes spécialement adaptées aux cellules prismatiques, de type poche ou rectangulaires
H01M 50/507 - Interconnecteurs pour connecter les bornes des batteries adjacentesInterconnecteurs pour connecter les cellules en dehors d'un boîtier de batterie comprenant un arrangement de plusieurs barres omnibus réunies dans une structure de conteneur, p. ex. modules de barres omnibus
17.
SWAPPABLE BATTERY MODULES COMPRISING IMMERSION-THERMALLY CONTROLLED PRISMATIC BATTERY CELLS AND METHODS OF FABRICATING THEREOF
Described herein are swappable battery modules comprising immersion-thermally controlled prismatic battery cells and methods of operating thereof. A module comprises a tubular enclosure attached (e.g., glued) to different surfaces of the cells and forming two fluid channels with one side of the cells and two additional fluid channels with the opposite side. The module also comprises a first end plate, which is attached to the tubular enclosure and comprises two electrical terminals for connecting to an electric vehicle (EV) and/or external charger. The first end plate also comprises a first fluidic port (fluidically coupled with two fluid channels) and a second fluidic port (fluidically coupled to the remaining two fluid channels), both are configured to form fluidic coupling to the electric vehicle and/or the external charger. The module also comprises a second end plate that fluidically interconnects paid fluid channels from different cell sides.
H01M 10/6568 - Liquides caractérisés par des circuits d'écoulement. p. ex. boucles, situés à l'extérieur des éléments ou des boîtiers des éléments
H01M 50/209 - Bâtis, modules ou blocs de multiples batteries ou de multiples cellules caractérisés par leur forme adaptés aux cellules prismatiques ou rectangulaires
H01M 50/258 - Batteries modulairesBoîtiers pourvus de moyens d’assemblage
H01M 50/367 - Passages internes d’évacuation des gaz dans le couvercle ou le boîtier de la batterieSystèmes d’évent à double couvercle
H01M 50/507 - Interconnecteurs pour connecter les bornes des batteries adjacentesInterconnecteurs pour connecter les cellules en dehors d'un boîtier de batterie comprenant un arrangement de plusieurs barres omnibus réunies dans une structure de conteneur, p. ex. modules de barres omnibus
H01M 50/55 - Bornes caractérisées par la position des terminaux sur les cellules sur le même côté de la cellule
18.
Swappable battery modules comprising immersion-thermally controlled prismatic battery cells and methods of fabricating thereof
Described herein are swappable battery modules comprising immersion-thermally controlled prismatic battery cells and methods of operating thereof. A method comprises positioning a swappable battery module on an external charger comprising charger fluidic ports and sliding the swappable battery module to the charger fluidic ports until these charger's ports are fluidically coupled with the module's fluidic ports. Specifically, the external charger comprises an enclosure and a module support rail slidably coupling the swappable battery module and the enclosure. The module support rail comprises a rail base, a first slider, a second slider, and a lever-based unit, interconnecting the rail base and both sliders. The rail base is fixed to the enclosure, while the second slider is detachably coupled to the module. The two sliders move at different speeds or at the same speed relative to the charger base depending on proximity of the first end plate to the charger base.
H01M 10/613 - Refroidissement ou maintien du froid
H01M 10/647 - Éléments prismatiques ou plans, p. ex. éléments de type poche
H01M 10/6568 - Liquides caractérisés par des circuits d'écoulement. p. ex. boucles, situés à l'extérieur des éléments ou des boîtiers des éléments
H01M 50/209 - Bâtis, modules ou blocs de multiples batteries ou de multiples cellules caractérisés par leur forme adaptés aux cellules prismatiques ou rectangulaires
H01M 50/507 - Interconnecteurs pour connecter les bornes des batteries adjacentesInterconnecteurs pour connecter les cellules en dehors d'un boîtier de batterie comprenant un arrangement de plusieurs barres omnibus réunies dans une structure de conteneur, p. ex. modules de barres omnibus
H05K 7/20 - Modifications en vue de faciliter la réfrigération, l'aération ou le chauffage
19.
Compact high-power DC-to-DC converters with out-of-phase converter units and multiple cooling types
Described herein are DC-DC converters with a ratio of the power output to volume of at least 2 kW per liter or even at least 4 kW per liter. Such DC-DC converters can operate at power levels of at least 150 kW or even at least 200 kW. A DC-DC converter comprises an enclosure and a front plate sealed against the enclosure using a set of fasteners. The DC-DC converter also comprises a converter unit comprising a switching sub-module, a diode sub-module, and an inductor as well as an additional converter unit comprising an additional switching sub-module, an additional diode sub-module, and an additional inductor. The switching sub-module and the additional switching sub-module or, more generally, the converter unit and the additional converter unit are configured to operate out of phase. The inductors are immersed cooled, the switching sub-modules are conductively cooled, while the diode sub-modules are convectively cooled.
Described herein are battery modules comprising immersion-cooled prismatic battery cells and methods of fabricating thereof. A battery module comprises prismatic battery cells that are stacked along the primary module axis. The module also comprises top, bottom, and side covers and two end plates, collectively enclosing these battery cells. Each cover forms two fluid channels, both fluidically open to the prismatic battery cells. Furthermore, the module comprises bus bars that interconnect the cell terminals and protrude into the fluid channels formed by the top cover. One end plate comprises two fluid ports for connecting to a thermal management system. Each port is fluidically coupled to one fluid channel, formed by the top cover, and one fluid channel, formed by the bottom cover. The other end plate fluidically couples the two fluid channels, formed by the top cover, and, separately, the two fluid channels, formed by the bottom cover.
H01M 10/6568 - Liquides caractérisés par des circuits d'écoulement. p. ex. boucles, situés à l'extérieur des éléments ou des boîtiers des éléments
H01M 50/171 - Couvercles caractérisés par le procédé d’assemblage des boîtiers avec des couvercles avec des agents adhésifs ou de scellement
H01M 50/209 - Bâtis, modules ou blocs de multiples batteries ou de multiples cellules caractérisés par leur forme adaptés aux cellules prismatiques ou rectangulaires
H01M 50/507 - Interconnecteurs pour connecter les bornes des batteries adjacentesInterconnecteurs pour connecter les cellules en dehors d'un boîtier de batterie comprenant un arrangement de plusieurs barres omnibus réunies dans une structure de conteneur, p. ex. modules de barres omnibus
21.
BATTERY MODULES COMPRISING IMMERSION-COOLED PRISMATIC BATTERY CELLS AND METHODS OF FABRICATING THEREOF
Described herein are battery modules comprising immersion-cooled prismatic battery cells and methods of fabricating thereof. A battery module comprises prismatic battery cells that are stacked along the primary module axis. The module also comprises top, bottom, and side covers and two end plates, collectively enclosing these battery cells. Each cover forms two fluid channels, both fluidically open to the prismatic battery cells. Furthermore, the module comprises bus bars that interconnect the cell terminals and protrude into the fluid channels formed by the top cover. One end plate comprises two fluid ports for connecting to a thermal management system. Each port is fluidically coupled to one fluid channel, formed by the top cover, and one fluid channel, formed by the bottom cover. The other end plate fluidically couples the two fluid channels, formed by the top cover, and, separately, the two fluid channels, formed by the bottom cover.
In a training phase, training data may be used to train a supervised machine learning prediction model and an unsupervised machine learning segmentation model. Then, in a testing phase, the supervised machine learning prediction model may be used to predict a target outcome for a test data observation. Also, the unsupervised machine learning segmentation model may be used to evaluate the novelty of the test data observation relative to the training data.
One or more structural equations modeling a physical process over time may be sampled using simulated parameter values to generate input data signal values. A noise generator may be applied to the input data signal values to generate noise values. The noise values and the input data signal values may be combined to determined noisy data signal values. These noisy data signal values may in turn be used in combination with one or more states to train a prediction model.
Techniques and mechanisms described herein provide automated processes for integrating supervised and unsupervised classification results of a test data observation with training data observations in a feature space. Novelty of the test data observation relative to the feature space may be measured using one or more distance metrics. Novelty of a test data observation may be further refined by comparison to a confusion matrix segment determined based on a supervised model. Based on the novelty information, the supervised and/or unsupervised models may be updated, for instance via incremental or batch training.
Described herein is a gearbox for an electric vehicle drivetrain unit comprising a gearbox enclosure, a support rod, a first piston, a second piston, and various hydraulic fluid passages. The support rod extends into the gearbox enclosure and at least partially protrudes/extends into the first and second pistons. The first piston, second piston, and support rod are fluidically connected with the hydraulic fluid passages such that when the gearbox is in a neutral gear, pressurized hydraulic fluid forces the first piston and the second piston against the support rod. When the gearbox is in a first gear, pressurized hydraulic fluid forces the support rod against the gearbox enclosure either directly or through the first piston. When the gearbox is in a second gear, pressurized hydraulic fluid forces the support rod against the gearbox enclosure directly or through the second piston. Also described are electric vehicles and shifting methods.
Described herein are methods and systems for recharging aerial vehicles using ground vehicles. For example, aerial vehicles and ground vehicles can be used in tandem to supplement each other functions (e.g., establishing wireless networks, delivering objects, and area surveillance). Aerial vehicles can operate close to ground vehicles and can use these ground vehicles for periodic recharge. Specifically, ground vehicles can have much larger batteries than aerial vehicles (e.g., electric drones). A method may involve determining the state of charge (SOC) of an aerial vehicle, and, when the SOC is below a threshold, flying and landing this aerial vehicle on one of the ground vehicles. Upon this landing, the aerial vehicle establishes an electrical connection between the charging unit of the ground vehicle and the charging interface of the aerial vehicle. The electrical power is then transferred through this connection to charge the aerial vehicle.
B64U 80/25 - Transport ou stockage spécialement adaptés aux véhicules aériens sans pilote avec des dispositions pour assurer le service du véhicule aérien sans pilote pour la recharge de batteriesTransport ou stockage spécialement adaptés aux véhicules aériens sans pilote avec des dispositions pour assurer le service du véhicule aérien sans pilote pour le ravitaillement en combustible
B64U 70/93 - Plates-formes portables pour l’utilisation sur un véhicule terrestre ou nautique
B60L 53/30 - Détails de construction des stations de charge
B60L 58/12 - Procédés ou agencements de circuits pour surveiller ou commander des batteries ou des piles à combustible, spécialement adaptés pour des véhicules électriques pour la surveillance et la commande des batteries en fonction de l'état de charge [SoC]
27.
Methods and systems for obtaining and processing images
Described herein are methods and systems for obtaining high-quality images, which may be suitable for various applications such as training and operating artificial intelligence (AI) systems. Specifically, a system may comprise multiple cameras and one or more actuators that are capable of moving these cameras relative to each other. For example, these cameras may form one or more stereo pairs, each pair having its stereo axis. The actuators can change baselines in these pairs and/or tilt these stereo axes relative to the imaged objects to address possible self-similarity issues associated with the shape of these objects and their orientation relative to the cameras. In some examples, the simultaneous images captured by these cameras are used to construct a three-dimensional (3D) model. The fidelity of this model is then used to determine the position of the cameras (as a camera unit or individually for each camera).
Electric lawnmowers comprise drive units and mowing units disengageably coupled to the drive units. For example, a drive unit can be disengageably coupled to any one of multiple mowing units (e.g., rotating mowing units, reel mowing units) collecting forming a mowing system. For example, each of the drive and mowing units may be equipped with corresponding mechanical-engagement structures that are configured to be disengageably coupled. Each mowing unit is equipped with its electric motor (e.g., for rotating the cutting blades or the reel of that unit). The electric motor may comprise an electric connector, which is disengageably coupled to the drive unit's electrical wiring. In some examples, each mowing unit can also form a liquid disengageable coupling for circulating a thermal liquid between the drive unit and mowing unit, e.g., for cooling various components of the drive unit.
Described herein are DC-DC converters with electronic module cooling units used for air-convection cooling of some components of power electronic modules and conductive cooling of other components, e.g., switching sub-modules. A cooling unit may have a heat exchanger and a cooling plate, thermally coupled to one or more heat exchangers and one or more switching sub-modules. For example, the cooling plate can be positioned between and thermally coupled to heat exchangers. One fan can direct air through one heat exchanger and to one power electronic module as a part of convection cooling. An additional fan can direct air through the second heat exchanger and to the second power electronic module. The cooling plate can be also positioned between and thermally coupled to switching sub-modules of these power electronic modules thereby enabling conductive cooling. The plate-cooling liquid is pumped through the cooling plate.
Electric lawnmowers comprise mowing-unit decks with fluid passages used for cooling batteries, power electronics units, and/or drive motors. Specifically, a lawnmower comprises a drive unit (with a battery, power electronics, and one or more drive motors) and a mowing unit (with a mowing-unit deck). The deck's fluid passage is fluidically coupled to the drive unit (e.g., the motor and power electronics). The thermal liquid is heated by the drive unit's components and cooled as the liquid passes through the deck's fluid passage. The mowing unit may be equipped with a pump (for circulating this liquid), which can be powered by an electric motor on the mowing unit. The same motor may be used for rotating the cutting blades. The drive unit may have an additional cooling circuit providing immersion cooling to the batteries.
A01D 34/66 - FaucheusesAppareils de fauchage des moissonneuses caractérisés par des particularités relatives au type d'appareil de coupe comportant des couteaux rotatifs comportant des couteaux tournant autour d'un axe vertical montés sur un véhicule, p. ex. un tracteur, ou tirés par un animal ou un véhicule à plusieurs couteaux
A01D 34/78 - Mécanismes d'entraînement des couteaux électriques
Remaining useful life may be estimated for a machine component by training a prediction model, even when limited data from actual failures is available. Feature data such as sensor readings associated with a mechanical process may be collected over time. Such readings may be paired with estimates of remaining useful life, for instance as extracted from unstructured text of maintenance records. Such data may be used to train and test the prediction model.
The failure modes of mechanical components may be determined based on text analysis. For example, a word embedding may be determined based on a plurality of text documents that include a plurality of maintenance records characterizing failure of mechanical components. A vector representation for a particular maintenance record may then be determined based on the word embedding. Based on the vector representation, the particular maintenance record may then be identified as belonging to a particular failure mode out of a set of possible failure modes.
Remaining useful life may be estimated for a machine component by training a prediction model, even when limited data from actual failures is available. Feature data such as sensor readings associated with a mechanical process may be collected over time. Such readings may be paired with estimates of remaining useful life, for instance as extracted from unstructured text of maintenance records. Such data may be used to train and test the prediction model.
The failure modes of mechanical components may be determined based on text analysis. For example, a word embedding may be determined based on a plurality of text documents that include a plurality of maintenance records characterizing failure of mechanical components. A vector representation for a particular maintenance record may then be determined based on the word embedding. Based on the vector representation, the particular maintenance record may then be identified as belonging to a particular failure mode out of a set of possible failure modes.
A first plurality of predictor values occurring during or before a first time interval may be received. An estimated outcome value may be determined for a second time interval by applying a prediction model via a processor to the first plurality of predictor values. A designated outcome value occurring during the second time interval and a second plurality of predictor values occurring during or before the second time interval may be received. An error value may be determined based on the estimated outcome value and the designated outcome value. A drift value for a second time interval may be determined by fitting a function to the second plurality of predictor values. The prediction model may be updated when it is determined that the drift value exceeds a designated drift threshold or that the error value exceeds a designated error threshold.
G05B 13/02 - Systèmes de commande adaptatifs, c.-à-d. systèmes se réglant eux-mêmes automatiquement pour obtenir un rendement optimal suivant un critère prédéterminé électriques
36.
Battery modules with integrated module converters and methods of operating thereof
Described herein are battery modules comprising integrated module converters, electric-vehicle battery systems comprising such modules, and methods of operating thereof. An electric-vehicle battery system comprises a high-voltage battery pack and high-voltage contactors that controllably isolate the pack's high-voltage area from other areas in the vehicle. The pack comprises multiple battery modules with battery cells and a primary module converter constantly connected to these cells. Each module has a lower voltage than the entire pack. The power output from the primary module converters is used to operate a battery controller and to close/activate the contactors in response to the switch position (e.g., an ignition switch). The primary module converters can be either constantly activated or controllably activated in response to the switch moving into an activated position. For example, a secondary module converter, with a lower power rating, can be used for this primary module converter activation.
B60L 58/21 - Procédés ou agencements de circuits pour surveiller ou commander des batteries ou des piles à combustible, spécialement adaptés pour des véhicules électriques pour la surveillance et la commande des batteries de plusieurs modules de batterie ayant la même tension nominale
B60L 58/22 - Équilibrage de la charge des modules de batterie
B60L 50/64 - Détails de construction des batteries spécialement adaptées aux véhicules électriques
H01M 10/48 - Accumulateurs combinés à des dispositions pour mesurer, tester ou indiquer l'état des éléments, p. ex. le niveau ou la densité de l'électrolyte
37.
Electrical vehicles comprising power distribution systems and methods of operating thereof
Described herein are electric vehicles comprising power distribution systems and methods of operating thereof. Specifically, a power distribution system is mechanically coupled to an electric motor, a road wheel, and an auxiliary unit. This system is configured to switch among multiple operating modes and selectively transfer mechanical power among the electric motor, wheel, and auxiliary unit. For example, the power distribution system is configured to transfer mechanical power between the electric motor and the road wheel, but not the auxiliary unit, when switched to a wheel operating mode. The power distribution system is configured to transfer mechanical power between the electric motor and the auxiliary unit, but not the road wheel, when switched to an auxiliary operating mode. The power distribution system is configured to transfer mechanical power between the electric motor, the auxiliary unit, and the road wheel when the system is switched to a combined operating mode.
B60K 1/02 - Agencement ou montage des ensembles de propulsion électriques comprenant plus d'un moteur électrique
B60K 1/04 - Agencement ou montage des ensembles de propulsion électriques des dispositifs d'emmagasinage de l'énergie électrique pour la propulsion
B60W 30/182 - Sélection entre plusieurs modes opératoires, p. ex. confort ou sportif
B60W 10/08 - Commande conjuguée de sous-ensembles de véhicule, de fonction ou de type différents comprenant la commande des ensembles de propulsion comprenant la commande des unités de traction électrique, p. ex. des moteurs ou des générateurs
B60W 10/10 - Commande conjuguée de sous-ensembles de véhicule, de fonction ou de type différents comprenant la commande des boîtes de vitesses
B60W 10/12 - Commande conjuguée de sous-ensembles de véhicule, de fonction ou de type différents comprenant la commande des différentiels
38.
Charging electric vehicles using DC-to-DC converters with immersion-cooled inductors
Described herein are vehicle charging systems, each comprising a recharge vehicle and a work vehicle configured to form an electrical connection and charge the work vehicle battery from the recharge vehicle battery. In some examples, this charging is performed at 500 kW or more or even at 1,000 kW or more. Furthermore, the connection and/or charging can be performed while both vehicles are moving (e.g., the recharge vehicle moving in front of the work vehicle). The recharge vehicle comprises one or more DC-DC converters, configured to boost a first voltage (V1) of the recharge vehicle battery to a second voltage (V2) of the work vehicle battery. It should be noted that these voltages vary depending on the state of charge of these batteries. In some examples, each DC-DC converter utilizes a combination of immersion, conductive, and convective cooling for different components of the converter.
H02M 3/335 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu avec transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrodes de commande pour produire le courant alternatif intermédiaire utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs
39.
Immersion-cooled inductors in DC-to-DC converters and methods of operating thereof
Described herein are DC-DC converters having various immersion-cooling features enabling high-power applications, such as cross-charging electric vehicles. For example, the inductor of a DC-DC converter may be formed using metal and insulator sheets stacked and wound into an inductor coil assembly. The metal sheet comprises grooves, extending parallel to the coil axis and forming coil fluid pathways through this assembly thereby providing immersion cooling to the inductor. An inductor-cooling liquid may be pumped through these fluid pathways while being in direct contact with the metal sheet, at least around the grooves. In some examples, these grooves are distributed along the entire length of the metal sheet. Multiple inductors may be used to enable operations of multiple converter units, e.g., operating out of phase. These inductors may be fluidically interconnectors and have the same cooling features.
Described herein are methods and systems for controlling differential wheel speeds of multi-independent-wheel vehicles, such as four-wheel-drive electric tractors (4WD-ETs). Specifically, a method comprises determining a target speed for each wheel of the vehicle based on at least the steering input. The linear travel speeds (corresponding to these target speeds) of any two wheels are different when the vehicle turns (steering input deviates from a no-steering baseline) or the same when the vehicle travels in a straight line (steering input is at the no-steering baseline). Each target wheel speed is then used to control the rotational speed of the corresponding electric motor, which independently drives one of the vehicle’s wheels. This process of determining the target wheel speeds and independently controlling all electric motors is frequently repeated such that the vehicle can be propelled through the turn at the desired speed with minimal wheel slip.
B60K 7/00 - Disposition du moteur dans ou jouxtant une roue motrice
B60W 10/08 - Commande conjuguée de sous-ensembles de véhicule, de fonction ou de type différents comprenant la commande des ensembles de propulsion comprenant la commande des unités de traction électrique, p. ex. des moteurs ou des générateurs
B60K 17/356 - Agencement ou montage des transmissions sur les véhicules pour entraînement simultané des roues avant et arrière, p. ex. véhicules à quatre roues motrices comportant un moteur à fluide ou électrique pour entraîner une ou plusieurs roues
41.
METHODS AND SYSTEMS FOR CONTROLLING DIFFERENTIAL WHEEL SPEEDS OF MULTI‑INDEPENDENT-WHEEL DRIVE VEHICLES
Described herein are methods and systems for controlling differential wheel speeds of multi-independent-wheel vehicles, such as four-wheel-drive electric tractors (4WD-ETs). Specifically, a method comprises determining a target speed for each wheel of the vehicle based on at least the steering input. The linear travel speeds (corresponding to these target speeds) of any two wheels are different when the vehicle turns (steering input deviates from a no-steering baseline) or the same when the vehicle travels in a straight line (steering input is at the no-steering baseline). Each target wheel speed is then used to control the rotational speed of the corresponding electric motor, which independently drives one of the vehicle's wheels. This process of determining the target wheel speeds and independently controlling all electric motors is frequently repeated such that the vehicle can be propelled through the turn at the desired speed with minimal wheel slip.
B60L 15/20 - Procédés, circuits ou dispositifs pour commander la propulsion des véhicules à traction électrique, p. ex. commande de la vitesse des moteurs de traction en vue de réaliser des performances désiréesAdaptation sur les véhicules à traction électrique de l'installation de commande à distance à partir d'un endroit fixe, de différents endroits du véhicule ou de différents véhicules d'un même train pour la commande du véhicule ou de son moteur en vue de réaliser des performances désirées, p. ex. vitesse, couple, variation programmée de la vitesse
B60W 10/119 - Commande conjuguée de sous-ensembles de véhicule, de fonction ou de type différents avec commande des transmissions intégrales, p. ex. engrenages de transfert ou embrayages pour répartir le couple entre les axes avant et arrière
B60W 10/20 - Commande conjuguée de sous-ensembles de véhicule, de fonction ou de type différents comprenant la commande des systèmes de direction
B60W 60/00 - Systèmes d’aide à la conduite spécialement adaptés aux véhicules routiers autonomes
B60K 17/34 - Agencement ou montage des transmissions sur les véhicules pour entraînement simultané des roues avant et arrière, p. ex. véhicules à quatre roues motrices
42.
Detection and visualization of novel data instances for self-healing AI/ML model-based solution deployment
A feature data segment may be determined by applying a feature segmentation model to a test data observation. The feature segmentation model may be pre-trained via a plurality of training data observations and may divide the plurality of training data observations into a plurality of feature data segments. A predicted target value may be determined by applying to a test data observation a prediction model pre-trained via a plurality of training data observations. One or more distance metrics representing a respective distance between the test data observation and the feature data segment along one or more dimensions may be determined. The one or more distance metrics may be represented in a user interface. An updated prediction model and an updated feature segmentation model that both incorporate the test data observation and the training data observations may be determined based on user input.
Described herein are swappable battery modules comprising immersion-thermally controlled prismatic battery cells and methods of operating thereof. A module comprises a tubular enclosure attached (e.g., glued) to different surfaces of the cells and forming two fluid channels with one side of the cells and two additional fluid channels with the opposite side. The module also comprises a first end plate, which is attached to the tubular enclosure and comprises two electrical terminals for connecting to an electric vehicle (EV) and/or external charger. The first end plate also comprises a first fluidic port (fluidically coupled with two fluid channels) and a second fluidic port (fluidically coupled to the remaining two fluid channels), both are configured to form fluidic coupling to the electric vehicle and/or the external charger. The module also comprises a second end plate that fluidically interconnects paid fluid channels from different cell sides.
H01M 10/6568 - Liquides caractérisés par des circuits d'écoulement. p. ex. boucles, situés à l'extérieur des éléments ou des boîtiers des éléments
H01M 10/42 - Procédés ou dispositions pour assurer le fonctionnement ou l'entretien des éléments secondaires ou des demi-éléments secondaires
H01M 50/209 - Bâtis, modules ou blocs de multiples batteries ou de multiples cellules caractérisés par leur forme adaptés aux cellules prismatiques ou rectangulaires
H01M 50/258 - Batteries modulairesBoîtiers pourvus de moyens d’assemblage
H01M 50/367 - Passages internes d’évacuation des gaz dans le couvercle ou le boîtier de la batterieSystèmes d’évent à double couvercle
H01M 50/507 - Interconnecteurs pour connecter les bornes des batteries adjacentesInterconnecteurs pour connecter les cellules en dehors d'un boîtier de batterie comprenant un arrangement de plusieurs barres omnibus réunies dans une structure de conteneur, p. ex. modules de barres omnibus
H01M 50/55 - Bornes caractérisées par la position des terminaux sur les cellules sur le même côté de la cellule
Described herein are electric vehicles with adjustable battery positions and/or adjustable track widths for controlling vehicle stability. In some examples, an electric vehicle comprises a positioning mechanism configured to move the battery pack relative to the support structure (e.g., operable as the vehicle's frame) to change the vehicle's COG. The battery pack can be moved in response to other vehicle operations, e.g., COG changes caused by adding/moving loads, changes to the route grade, and the like. The battery pack can be slidably coupled to the support structure. In some examples, an electric vehicle comprises a track adjustment mechanism configured to move the vehicle's wheel axle relative to the support structure, along the wheel axle center axis, thereby changing the track width. The wheel axle can be coupled to a hub motor. In some examples, the battery is moved, and/or the track width is changed during the vehicle's operation.
B60K 1/04 - Agencement ou montage des ensembles de propulsion électriques des dispositifs d'emmagasinage de l'énergie électrique pour la propulsion
B60L 58/24 - Procédés ou agencements de circuits pour surveiller ou commander des batteries ou des piles à combustible, spécialement adaptés pour des véhicules électriques pour la surveillance et la commande des batteries pour la commande de la température des batteries
H01M 50/249 - MonturesBoîtiers secondaires ou cadresBâtis, modules ou blocsDispositifs de suspensionAmortisseursDispositifs de transport ou de manutentionSupports spécialement adaptés aux aéronefs ou aux véhicules, p. ex. aux automobiles ou aux trains
In many industrial settings, a process is repeated many times, for instance to transform physical inputs into physical outputs. To detect a situation involving such a process in which errors are likely to occur, information about the process may be collected to determine time-varying feature vectors. Then, a drift value may be determined by comparing feature vectors corresponding with different time periods. When the drift value crosses a designated drift threshold, a predicted outcome value may be determined by applying a prediction model. Sensitivity values may be determined for different features, and elements of the process may then be updated based at least in part on the sensitivity values.
Described are methods and systems for remote charging of work vehicles using recharge vehicles. A recharge vehicle is equipped with power storage that has a sufficient capacity for propelling the recharge vehicle between a charging station (used for charging the recharge vehicle) and a work location (of the work vehicle) and also for charging the work vehicle at the work location. In some examples, the charging of the work vehicle and even the connection between the vehicles are formed while the work vehicle continues to operate. This approach helps to maximize the operating time of the work vehicle. Furthermore, this approach relaxes the charge rate requirement for charging the recharge vehicle and also for charging the work vehicle as well as the location of the charging station (for charging the recharge vehicle). In some examples, work vehicles and/or recharge vehicles are autonomous vehicles and use vehicle-to-vehicle coordination features.
B60L 53/68 - Surveillance ou commande hors site, p. ex. télécommande
B60L 53/30 - Détails de construction des stations de charge
B60L 53/36 - Moyens pour l’ajustement automatique ou assisté de la position relative des dispositifs de charge et des véhicules par le positionnement du véhicule
B62D 6/00 - Dispositions pour la commande automatique de la direction en fonction des conditions de conduite, qui sont détectées et pour lesquelles une réaction est appliquée, p. ex. circuits de commande
B60W 60/00 - Systèmes d’aide à la conduite spécialement adaptés aux véhicules routiers autonomes
B60W 10/20 - Commande conjuguée de sous-ensembles de véhicule, de fonction ou de type différents comprenant la commande des systèmes de direction
47.
Methods and systems for remote charging of work vehicles using recharge vehicles
Described herein are methods and systems for remote charging of work vehicles using recharge vehicles. A recharge vehicle is equipped with power storage that has a sufficient capacity for propelling the recharge vehicle between a charging station (used for charging the recharge vehicle) and a work location (of the work vehicle) and also for charging the work vehicle at the work location. In some examples, the charging of the work vehicle and even the connection between the vehicles are formed while the work vehicle continues to operate. This approach helps to maximize the operating time of the work vehicle. Furthermore, this approach relaxes the charge rate requirement for charging the recharge vehicle and also for charging the work vehicle as well as the location of the charging station (for charging the recharge vehicle). In some examples, work vehicles and/or recharge vehicles are autonomous vehicles and use vehicle-to-vehicle coordination features.
B60L 53/68 - Surveillance ou commande hors site, p. ex. télécommande
B60L 58/12 - Procédés ou agencements de circuits pour surveiller ou commander des batteries ou des piles à combustible, spécialement adaptés pour des véhicules électriques pour la surveillance et la commande des batteries en fonction de l'état de charge [SoC]
B60L 53/36 - Moyens pour l’ajustement automatique ou assisté de la position relative des dispositifs de charge et des véhicules par le positionnement du véhicule
B60L 53/16 - Connecteurs, p. ex. fiches ou prises, spécialement adaptés pour recharger des véhicules électriques
H02J 7/00 - Circuits pour la charge ou la dépolarisation des batteries ou pour alimenter des charges par des batteries
Electric vehicles include adjustable battery positions and/or adjustable track widths for controlling vehicle stability. In some examples, an electric vehicle comprises a positioning mechanism configured to move the battery pack relative to the support structure (e.g., operable as the vehicle's frame) to change the vehicle's COG. The battery pack can be moved in response to other vehicle operations, e.g., COG changes caused by adding/moving loads, changes to the route grade, and the like. The battery pack can be slidably coupled to the support structure. In some examples, an electric vehicle comprises a track adjustment mechanism configured to move the vehicle's wheel axle relative to the support structure, along the wheel axle center axis, thereby changing the track width. The wheel axle can be coupled to a hub motor. In some examples, the battery is moved, and/or the track width is changed during the vehicle's operation.
B60K 1/04 - Agencement ou montage des ensembles de propulsion électriques des dispositifs d'emmagasinage de l'énergie électrique pour la propulsion
B60L 50/60 - Propulsion électrique par source d'énergie intérieure au véhicule utilisant de la puissance de propulsion fournie par des batteries ou des piles à combustible utilisant de l'énergie fournie par des batteries
B62D 49/06 - Tracteurs adaptés à des usages multiples
B62D 49/08 - Tracteurs ayant des moyens pour empêcher le retournement ou le basculement
B60L 15/20 - Procédés, circuits ou dispositifs pour commander la propulsion des véhicules à traction électrique, p. ex. commande de la vitesse des moteurs de traction en vue de réaliser des performances désiréesAdaptation sur les véhicules à traction électrique de l'installation de commande à distance à partir d'un endroit fixe, de différents endroits du véhicule ou de différents véhicules d'un même train pour la commande du véhicule ou de son moteur en vue de réaliser des performances désirées, p. ex. vitesse, couple, variation programmée de la vitesse
49.
Remaining useful life prediction for machine components
Remaining useful life may be estimated for a machine component by training a prediction model, even when limited data from actual failures is available. Feature data such as sensor readings associated with a mechanical process may be collected over time. Such readings may be paired with estimates of remaining useful life, for instance as extracted from unstructured text of maintenance records. Such data may be used to train and test the prediction model.
The failure modes of mechanical components may be determined based on text analysis. For example, a word embedding may be determined based on a plurality of text documents that include a plurality of maintenance records characterizing failure of mechanical components. A vector representation for a particular maintenance record may then be determined based on the word embedding. Based on the vector representation, the particular maintenance record may then be identified as belonging to a particular failure mode out of a set of possible failure modes.
Described herein are methods and systems for controlling differential wheel speeds of multi-independent-wheel vehicles, such as four-wheel-drive electric tractors (4WD-ETs). Specifically, a method comprises determining a target speed for each wheel of the vehicle based on at least the steering input. The linear travel speeds (corresponding to these target speeds) of any two wheels are different when the vehicle turns (steering input deviates from a no-steering baseline) or the same when the vehicle travels in a straight line (steering input is at the no-steering baseline). Each target wheel speed is then used to control the rotational speed of the corresponding electric motor, which independently drives one of the vehicle's wheels. This process of determining the target wheel speeds and independently controlling all electric motors is frequently repeated such that the vehicle can be propelled through the turn at the desired speed with minimal wheel slip.
B60K 17/356 - Agencement ou montage des transmissions sur les véhicules pour entraînement simultané des roues avant et arrière, p. ex. véhicules à quatre roues motrices comportant un moteur à fluide ou électrique pour entraîner une ou plusieurs roues
B60K 7/00 - Disposition du moteur dans ou jouxtant une roue motrice
B60W 10/08 - Commande conjuguée de sous-ensembles de véhicule, de fonction ou de type différents comprenant la commande des ensembles de propulsion comprenant la commande des unités de traction électrique, p. ex. des moteurs ou des générateurs
52.
Apparatus for Data Coverage Analysis in AI systems
A method of processing data for an artificial intelligence (AI) system includes extracting features of the data to produce a lower dimensional representation of the data points; grouping the lower dimensional representation into clusters using a clustering algorithm; comparing the classes of data points within the clusters; and identifying unrepresented, under-represented, or misrepresented data.
Systems and methods are disclosed for training a previously trained neural network with incremental dataset. Original train data is provided to a neural network and the neural network is trained based on the plurality of classes in the sets of training data and/or testing data. The connected representation and the weights of the neural network is the model of the neural network. The trained model is to be updated for an incremental train data. The embodiments provide a process by which the trained model is updated for the incremental train data. This process creates a ground truth for the original training data and trains on the combined set of original train data and the incremental train data. The incremental training is tested on a test data to conclude the training and to generate the incremental trained model, minimizing the knowledge learned with the original data. Thus, the results remain consistent with the original model trained by the original dataset except the incremental train data.
A vehicle control device capable of improving safety, even when abnormality in the operation of an arithmetic processing unit occurs. A second microcomputer receives trajectory information transmitted from a first microcomputer via a communication line and calculates control commands to actuators to synchronize the arithmetic processing unit allowing the first and second microcomputers to be synchronized. The second microcomputer performs a calculation and compares the result with the calculation result of the first microcomputer so that the second microcomputer can accurately determine whether or not the first microcomputer is abnormal. When the abnormality occurs in the first microcomputer based on the determination, the actuators are controlled by switching to the control commands calculated by the second microcomputer which is synchronized with the arithmetic processing unit. Thus, the device performs seamless self-driving control without the occurrence of abrupt control gaps.
G06F 7/00 - Procédés ou dispositions pour le traitement de données en agissant sur l'ordre ou le contenu des données maniées
B60W 50/02 - Détails des systèmes d'aide à la conduite des véhicules routiers qui ne sont pas liés à la commande d'un sous-ensemble particulier pour préserver la sécurité en cas de défaillance du système d'aide à la conduite, p. ex. en diagnostiquant ou en palliant à un dysfonctionnement
B60W 30/08 - Anticipation ou prévention de collision probable ou imminente
B60W 50/00 - Détails des systèmes d'aide à la conduite des véhicules routiers qui ne sont pas liés à la commande d'un sous-ensemble particulier
G06F 11/22 - Détection ou localisation du matériel d'ordinateur défectueux en effectuant des tests pendant les opérations d'attente ou pendant les temps morts, p. ex. essais de mise en route
B60W 50/06 - Détails des systèmes d'aide à la conduite des véhicules routiers qui ne sont pas liés à la commande d'un sous-ensemble particulier pour améliorer la réponse dynamique du système d'aide à la conduite, p. ex. pour améliorer la vitesse de régulation, ou éviter le dépassement de la consigne ou l'instabilité
B60R 16/02 - Circuits électriques ou circuits de fluides spécialement adaptés aux véhicules et non prévus ailleursAgencement des éléments des circuits électriques ou des circuits de fluides spécialement adapté aux véhicules et non prévu ailleurs électriques
B60W 50/035 - Mise des unités de commande dans un état prédéterminé, p. ex. en donnant la priorité à des éléments d'actionnement particuliers
B60W 50/04 - Détails des systèmes d'aide à la conduite des véhicules routiers qui ne sont pas liés à la commande d'un sous-ensemble particulier pour surveiller le fonctionnement du système d'aide à la conduite
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