Automotive noise attenuating trim part comprising at least a porous layer whereby the porous layer comprises at least one closed container partly filled with loose particles, whereby the closed container comprises a contact surface formed by a film for contacting a vibrating surface of the vehicle and whereby the surface of the film opposite the contact surface is in contact with at least part of the loose particles, such that the film can transfer vibrational energy from the vibrating surface to the loose particles inside the container.

A vehicle upper structure reduces noise in a cabin by preventing vibration of a roof panel while avoiding an increase in manufacturing cost and an increase in vehicle weight. A vehicle includes a roof panel, a front header, a ceiling, and a vibration damping member. The front header extends in a vehicle width direction on an inner side of the cabin from the roof panel. The ceiling covers the roof panel from the inner side of the cabin. The vibration damping member is fixed to an upper surface of the ceiling. The vibration damping member is arranged between a sun visor fixed portion and a gusset fixed portion in the vehicle width direction and near the front header. The vibration damping member has at least two resonance frequencies and is configured such that one resonance frequency thereof is substantially the same as a resonance frequency of the ceiling.

A hollow chamber blocking tool includes: a first blocking tool having a first foamable base material on a first holder plate; and a second blocking tool having a second foamable base material on a second holder plate. The first blocking tool includes a steel plate fixing portion locked to a steel plate. The second blocking tool includes an integrated portion locked to the steel plate fixing portion. The second holder plate includes a rotating portion rotatably connected to the first blocking tool.

A chemical blowing agent is described that includes at least one tertiary alkyl carbamate. The chemical blowing agent can be activated thermally and is suitable for foaming thermoplastic materials and can, for example, be incorporated into thermally expandable baffle and/or reinforcement elements, which can be used in automotive manufacturing and building insulation.

A soundproof material includes rubber sponge having a specific gravity of 0.2 or less, which is formed by extrusion molding and a subsequent crosslinking and foaming of a rubber composition using a microwave heating device. The rubber composition includes at least raw material rubber, a crosslinking agent, a foaming agent, and carbon black. The soundproof material has a rectangular cross-sectional outer shape, has at least two hollow parts inside formed by a lateral partition wall extending in a left-right lateral direction and at least two hollow parts formed by a vertical partition wall extending in a vertical direction. The method includes adding carbon nanotubes to the rubber composition.

A vehicle includes: an electric device; a pair of left front seat and right front seat; and a center console which is disposed between the left front seat and the right front seat, and which accommodates the electric device. A sheet-like soundproofing member is disposed between an upper surface of the electric device and the center console.

Systems, apparatus and methods to implement sectional design (e.g., in quadrants) of an autonomous vehicle may include modular construction techniques to assemble an autonomous vehicle from multiple structural sections. The multiple structural sections may be configured to implement radial and bilateral symmetry. A structural section based configuration may include a power supply configuration (e.g., using rechargeable batteries) including a double-backed power supply system. The power supply system may include a kill switch disposed on a power supply (e.g., at an end of a rechargeable battery). The kill switch may be configured to disable the power supply system in the event of an emergency or after a collision, for example. The radial and bilateral symmetry may provide for bi-directional driving operations of the autonomous vehicle as the vehicle may not have a designated front end or a back end.

A roof for a vehicle is provided. The roof includes a roof panel that is formed of a composite material, a reinforcing frame that is attached onto a lower surface of the roof panel and formed of a composite material and a plurality of first reinforcing members that are connected to the reinforcing frame within the reinforcing frame and disposed to be continuously spaced apart from each other. A plurality of second reinforcing members are connected to the reinforcing frame while intersecting with the first reinforcing members and are disposed to be continuously spaced apart from each other to form a truss structure together with the first reinforcing members within the reinforcing frame.

The present disclosure relates to an insulation member for a hollow space of a vehicle bodywork. The insulation member comprises an expandable insulation body and a gas-impermeable cover. The cover comprises a yieldable chamber portion enclosing the expandable insulation body, wherein a pressure inside the chamber portion in a non-expanded state of the insulation member is less than atmospheric pressure. The cover further comprises at least one attachment portion adapted for attachment to the vehicle bodywork. The disclosure further relates to a vehicle comprising the insulation member, a use of the insulation member, a method of manufacturing an insulation member and a method of mounting an insulation member.

A soundproof cover is mounted to a first gear box of a power seat motor unit that is attached to a frame member of a seat and that has a motor and a gear box. In the first gear box, the axial direction of the motor is defined as the X direction, the direction of attachment to the frame member, which is one of two directions that are orthogonal to the X direction, is defined as the Y direction, and the remaining direction is defined as the Z direction. Then, the soundproof cover has: a foam disposed on at least an X-Z surface of the first gear box; a cover member disposed on the outer side of the foam; and a mass body interposed between the foam and the cover member and disposed at a position corresponding to at least the X-Z surface of the first gear box in contact with the foam.