Provided is a vehicle lower-part structure including a pair of center side members arranged under a floor of a vehicle; a first cross member and a second cross member connecting the pair of center side members; a main battery arranged in an underfloor space; one or more support plates arranged at a corner of the underfloor space; and a water tank placed on the support plate, in which the support plate is connected to both the center side member and the first or second cross member and connects the two.

A volume tank that houses a material is provided. The volume tank can include a first bulk head, a second bulk head opposite the first bulk head, a non-symmetrical frustoconical shell section, a cylindrical shell section and a transition section in between the non-symmetrical frustoconical shell section and the cylindrical shell section. The volume tank is configured to be coupled to a portion of a frame of a vehicle, and in a non-limiting embodiment, to a school bus.

A hub lock nut assembly for retaining a vehicle wheel hub in position. The hub lock nut assembly comprising a hub lock nut and a mating component with which the hub lock nut is arranged to be mated in a mated position. The hub lock nut comprises a circumferential inner wall defining a central hole, the inner wall having a threaded portion. One of the hub lock nut or the mating component comprises at least one resilient portion adapted to be movable in a radial direction outwardly of the central hole when subjected to an external force provided by the other of the mating component or the hub lock nut. The at least one resilient portion having an engagement area for receiving said external force, wherein the engagement area is located radially outwardly of the threaded portion.

A land vehicle includes a body, a technical compartment opening onto an outer wall of the body; and a closing device that closes the technical compartment. The closing device includes first and second flaps, which are rotatable relative to the body, and a central element, which is connected to the body between the flaps. In a closed configuration of the closing device, each of the flaps extends in a longitudinal direction with one end of each in contact with the central element, so that the flaps close the technical compartment. In an open configuration of the closing device, both of the flaps folded against the outer wall or against the central element, so as to provide access to the technical compartment.

A windshield wiper system includes a pivoting wiper arm (110), a wiper blade (120) for wiping a surface (102), and a connector assembly (130) coupling the pivoting wiper arm (110) to the wiper blade (120). The connector system (130) includes a first connecting member (140) directly coupled to the wiper arm (110) and a second connecting member (150) directly coupled to the wiper blade (120). The first connecting member (140) and the second connecting member (150) are movably coupled to each other, wherein a position of the first connecting member (140) relative to the second connecting member (150) is based on an angular position of the pivoting wiper arm (110).

Provided is a cooling module for a vehicle, and more particularly, a cooling module placed on a side of the vehicle with three-row mounting parts, in which components are mounted, to maximize cooling efficiency and space utilization inside the vehicle.

A self-contained illuminated sign for mounting on a vehicle is disclosed. The sign includes a front panel, a rear panel situated opposite and substantially parallel to the front panel in spaced relation therefrom to define a space therebetween, and a light source comprising a plurality of LEDs. The light source is positioned between the front and rear panels and is configured to emit light that emanates from the front panel. The front panel is thus backlit to display indicia. A system for supporting a self-contained illuminated sign on a vehicle is also disclosed. The system includes the sign and a separate mounting frame mountable on a vehicle. The mounting frame is configured to removably receive the sign and, when the sign is received in the mounting frame, to surround a perimeter of the sign while permitting visibility of the front display area. Related methods are also disclosed.

An example embodiment of a system and methods for detecting and reporting whether passengers are seated and secured in their seats within a vehicle may include a passenger sensor configured to provide an output indicative of a presence of a passenger in a seat in a vehicle, a restraint sensor configured to provide an output indicative of a status of a passenger safety restraint associated with the seat, a transmitter configured to be in electronic communication with the passenger sensor and the restraint sensor and to wirelessly transmit data indicative of the presence of a passenger in the seat and the status of the restrain, and a reporting module configured to be disposed proximate a driver of the vehicle. The reporting module may be configured to receive the data from the transmitter, and output a respective status for each of a plurality of seats.

A display system for vehicle includes: a display located on a vehicle; a display CTL that supplies display data to the display; a display power supply relay that switches on and off feeding of power to the display; a CTL power supply relay that switches on and off feeding of power to the display CTL; an instruction receiver; and a power supply controller that controls the display power supply relay and the CTL power supply relay. The power supply controller turns on the display power supply relay and the CTL power supply relay, thereby placing the display system in a displaying mode. In the displaying mode, upon receiving an OFF instruction from the instruction receiver, the power supply controller turns off the display power supply relay while maintaining the controller power supply relay in the ON state, and thereby places the display system in a sleep mode.

A rear axle assembly designed to fit within a predefined rear axle envelope of a transportation vehicle. The rear axle assembly comprising first and second double wheel hubs each supporting a pair of tires, a rear axle offset with respect to a central axis of the rear axle assembly, a rear axle input for receiving a drive input, first and second portal housings which facilitate respectively connecting the rear axle with the first and the second double wheel hubs, a four-point control arm for connecting the rear axle to a chassis, first and second spring carriers each carrying smaller and larger diameter air bellows, first and second longitudinal arms which interconnected the rear axle to the chassis, and first and second shock absorbers each located generally at or adjacent to the central axis and radially between the first double wheel hub and the first spring carrier.