Abstract: An electric vehicle structure includes a chassis frame in which a closed curve surrounding a battery accommodating space is formed, a water-tight panel formed so that another closed curve surrounding an internal side of the closed curve that surrounds the battery accommodating space of the chassis frame is formed, an upper cover coupled to an upper portion of the water-tight panel to cover an upper portion of the battery accommodating space, and an under cover coupled to a lower portion of the water-tight panel to cover a lower portion of the battery accommodating space.

Abstract: An optical path control member according to an embodiment comprises: a first substrate; a first electrode provided on the upper portion of the first substrate; a second substrate provided on the first substrate; a second electrode provided on the lower portion of the second substrate; and an optical conversion unit provided between the first electrode and the second electrode, wherein the optical conversion unit comprises partition wall parts and accommodation parts which are alternately arranged. The accommodation parts have a light transmission rate that varies according to the application of a voltage, and the accommodation parts comprise a plurality of unit accommodation cells spaced apart from each other, and comprises a dispersion and light-absorbing particles which are dispersed in the dispersion.

Abstract: An electric vehicle structure includes a chassis frame having a first closed curve that surrounds a battery accommodation space, a watertight panel having another closed curve that surrounds the inside of the closed curve that surrounds the battery accommodation space of the chassis frame, an upper cover coupled to an upper side of the watertight panel and covering an upper side of the battery accommodation space, and an under cover coupled to a lower side of the watertight panel and covering a lower side of the battery accommodation space.

Abstract: A coolant reservoir includes an ion filter, the coolant reservoir includes a main body in which a coolant to cool a fuel cell stack is stored, and the ion filter configured to be selectively connected to a coolant line, through which the coolant flows, to remove ions contained in the coolant when a measured insulation resistance value of a fuel cell system changes.

Abstract: A light path control member according to an embodiment includes a first substrate; a first electrode disposed on the first substrate; a second substrate disposed on the first substrate; a second electrode disposed under the second substrate; and a light conversion part disposed between the first electrode and the second electrode and including a receiving part for receiving a light conversion material, and wherein the first electrode and the second electrode include different materials.

Abstract: A structure for increasing durability of an ion filter, which includes a reservoir configured to store cooling water discharged from a fuel cell stack, an ion filter configured to remove ions from the cooling water discharged from the fuel cell stack, a flow rate adjustment valve disposed between the ion filter and the fuel cell stack, a first pipe which flows the cooling water from the ion filter to the reservoir, and a second pipe that is a passage through which air or the cooling water is moved between the reservoir and the ion filter according to a change in level of the cooling water inside the ion filter.

Abstract: A vehicle body assembly includes a cross member configured to connect side members disposed at two opposite sides of a chassis frame of a vehicle. A battery is fastened to the cross member and the battery is fastened to a reinforcement member provided on a floor panel of a vehicle body and fastened to the cross member of the chassis frame. The battery may be installed in and removed from the vehicle in accordance with a user's needs that change even after the vehicle is manufactured, the battery of the vehicle may be replaced even after the vehicle is manufactured, and structural durability may be realized.

Abstract: A universal driving device includes a ring gear, a sun gear having a variable inter-axis distance with respect to a rotation shaft of the ring gear, a gear train including a series of gears configured to connect the sun gear and the ring gear, link mechanisms configured to accommodate a change in an inter-axis distance between the sun gear and the ring gear and rotatably connected with respect to each other to continuously maintain a power transmission state between the sun gear and the ring gear, a carrier configured to support a rotation shaft of a final gear engaged with the ring gear, among the gears constituting the gear train, a sun gear bearing positioned between the rotation shaft of the sun gear and each of the link mechanisms, and a sleeve positioned between the sun gear bearing and each of the link mechanisms.

Abstract: A vehicle front subframe includes: a pair of longitudinal members each extending in a longitudinal direction of a vehicle and having a mounting recess; an inner reinforcing member mounted in an inner cavity of each longitudinal member; and a suspension arm having a mount mounted in the mounting recess of each longitudinal member through a mount member.

Abstract: A universal drive including a ring gear, a sun gear in which a sun gear axis is moveable relative to a ring gear axis of the ring gear, a gear train constituted by a series of gears configured to connect the sun gear and the ring gear to each other, a link mechanism connected to the sun gear and the ring gear in the state in which relative rotation therebetween is allowed such that a power transmission state between the sun gear and the ring gear is continuously maintained while accommodating a change in the inter-axis distance between the sun gear and the ring gear, a carrier installed so as to support a rotating shaft of a final gear engaged with the ring gear, and a sliding member located between at least one of the gears and the carrier.

Abstract: The cryogenic austenitic high-manganese steel having excellent corrosion resistance, according to one aspect of the present invention, comprises 0.2-0.5 wt % of C, 23-28 wt % of Mn, 0.05-0.5 wt % of Si, 0.03 wt % or less of P, 0.005 wt % or less of S, 0.5 wt % or less of Al, and 3-4 wt % of Cr, with the remainder being Fe and other unavoidable impurities, also comprises at least 95 area % of austenite as a microstructure, and has Cr concentration sections continuously formed within an area of 50 ?m in the thickness direction from the surface, wherein the Cr concentration sections comprise a high Cr concentration section having a relatively high concentration of Cr, and a low Cr concentration section having a relatively low concentration of Cr, and the high Cr concentration section may be distributed at 30 area % or less (but not 0%) relative to the whole surface area of the Cr sections.

Abstract: A gear train includes at least four gears sequentially engaged, multiple links configured to support the rotation shafts of the gears, and pins configured to fix the rotation shafts of the gears to the link, wherein the pins are installed such that, among the rotation shafts of the gears, two non-adjacent rotation shafts have both ends fixed to the link and one of adjacent rotation shafts has only one end fixed to the link.

Abstract: A frame structure for a purpose built vehicle (PBV) includes: an inner panel connected to the rear of a middle part of a side member to form an inner side of a rear part of the side member, a front outer panel connected to the rear of the middle part of the side member and coupled to an outer side of the inner panel to form a closed cross-section, a center outer panel connected to the rear of the front outer panel and coupled to the outer side of the inner panel to form a space in which a rear suspension member is coupled, and a rear outer panel connected to the rear of the center outer panel and coupled to the outer side of the inner panel to form a closed cross-section.

Abstract: A drive unit mounting structure of a vehicle includes a front cross member disposed on a front side of a drive unit and elongated in a transverse direction of the vehicle; a mounting hole formed in the front cross member such that a front end of the drive unit can be inserted therein; and a mounting bush mounted in the mounting hole and installed to support the front end of the drive unit.

Abstract: An embodiment vehicle frame assembly includes a plurality of vehicle body cross members disposed at a vehicle body floor of a vehicle and extending in a width direction of the vehicle, a vehicle body side sill disposed outside the vehicle in an outward direction of the vehicle body cross members, connected to the vehicle body cross members, and extending in a longitudinal direction of the vehicle, and a support member including extension ends extending in multiple directions from a center of the support member, each of the extension ends connecting at least one of the plurality of vehicle body cross members to the vehicle body side sill, wherein the plurality of vehicle body cross members, the vehicle body side sill, and the support member are connected to one another so as to define a load path for a lateral collision of the vehicle.

Abstract: An embodiment rear side member of a vehicle includes a front portion extending forward in a vehicle length direction, a rear portion extending rearward in the vehicle length direction and disposed offset to an inside of the vehicle with respect to the front portion, and a transition portion in a curved shape connecting a rear end of the front portion and a front end of the rear portion and passing through both a first point configured to engage with a first arm of a first type suspension and a second point configured to engage with a second arm of a second type suspension different from the first type suspension.

Abstract: An optical path control member, according to one embodiment, comprises: a first substrate; a first electrode arranged on the first substrate; a second substrate arranged on the first substrate; a second electrode arranged under the second substrate; a light conversion unit arranged between the first electrode and the second electrode; and a buffer layer arranged between the first electrode and the light conversion unit, wherein the buffer layer has a thickness of 0.1 ?m or less.

Abstract: A virtual fitting device includes: an artificial intelligence server which receives avatar 3D data of a user requesting virtual fitting, clothing 3D data of clothing selected by the user, and clothing material parameters for the selected clothing and generates virtual fitting 3D data through neural network operations; a rendering server which renders the virtual fitting 3D data using the virtual fitting 3D data and the clothing material parameters to generate a virtual fitting rendering image; an image transmission server which transmits pixel data of the virtual fitting rendering image to the user; and a database which stores user-specific avatar 3D data, clothing-specific 3D data, and clothing-specific clothing material parameters, wherein the clothing material parameters have a vector form including a plurality of scalar values.

Abstract: A camera module is provided. The camera module include a housing; a folded module disposed in the housing and including a first reflective member; a lens module disposed in the housing and configured to receive light reflected from the folded module; a holder disposed in the housing and including a second reflective member configured to receive light passing through the lens module; and an image sensor configured to receive light reflected from the second reflective member, wherein a guide shaft disposed in the housing is configured to be inserted into the holder.

Abstract: A universal driving device includes a ring gear, a sun gear installed such that the shaft distance between a rotation shaft of the sun gear and a rotation shaft of the ring gear is changeable, and a split gear disposed between the sun gear and the ring gear, and configured to split power, received from the sun gear through one path, into multiple paths and transmit the power to the ring gear.