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: A battery pack mounting structure of a vehicle includes: a frame side member of a chassis frame provided so that an upper end portion thereof is located at a position spaced downward by a predetermined reference downward distance from a step height set in consideration of ease of boarding of passengers; a battery case provided so that a battery accommodated in the battery case overlaps the frame side member in a horizontal direction thereof; a case side portion forming a side surface of the battery case, coupled to a lower side of the frame side member, and including a lower end portion aligned with a lowest ground height of the vehicle; and a case lower plate forming the battery case while supporting a lower side of the battery and disposed at a position spaced upwards from the lowest ground height.

Abstract: A frame structure for a vehicle includes: an inner panel connected to a side member and defining an inner side of a rear part of the side member; an outer panel connected to a rear side of the side member and coupled to an outer side of the inner panel defining a closed cross-section together with the inner panel and defining an outer side of the rear part of the side member; an opening portion formed below the inner and outer panels partially opening the closed cross-section so that a front end of a rear suspension arm can be inserted into the opening portion; and a reinforcing member disposed in the opening portion defining the closed cross-section together with the outer panel and the inner panel and configured to close an internal space in the outer and inner panels.

Abstract: A frame structure for a purpose built vehicle (PBV) includes: two main side members extending while gradually rising toward a front of the PBV and extending in a front/rear direction to be disposed on either side of the PBV; two auxiliary side members respectively extending in a front/rear direction to be disposed on a lower side of the two main side members; a front cross member connecting the two auxiliary side members in a lateral direction of the PBV; and a plurality of vertical members respectively connecting the main side members and the auxiliary side members in a vertical direction.

Abstract: A frame for a purpose-built vehicle (PBV) includes: a front part frame positioned at a front side of a vehicle; a rear part frame positioned at a rear side of the vehicle; and a center part frame. The center part frame has a rectangular planar shape and is coupled between the front part frame and the rear part frame.

Abstract: Disclosed herein is a system for driving light emitting devices. The system for driving light emitting devices includes a main light emitting device and at least one sub-light emitting device. The main light emitting device includes a first communication unit for exchanging information with a central monitoring server and a close sub-light emitting device using a wireless communication module, a first light emitting unit having at least one light emitting element, and a first control unit for controlling the light emission of the first light emitting unit, and transmitting a command signal for controlling the sub-light emitting device to the sub-light emitting device. The sub-light emitting device includes a second communication unit for exchanging information with the main light emitting device, a second light emitting unit having at least one light emitting element, and a second control unit for controlling the light emission of the second light emitting unit.

Abstract: Disclosed herein is a system for driving light emitting devices. The system for driving light emitting devices includes a main light emitting device and at least one sub-light emitting device. The main light emitting device includes a first communication unit for exchanging information with a central monitoring server and a close sub-light emitting device using a wireless communication module, a first light emitting unit having at least one light emitting element, and a first control unit for controlling the light emission of the first light emitting unit, and transmitting a command signal for controlling the sub-light emitting device to the sub-light emitting device. The sub-light emitting device includes a second communication unit for exchanging information with the main light emitting device, a second light emitting unit having at least one light emitting element, and a second control unit for controlling the light emission of the second light emitting unit.