A vehicle body lower structure includes: an undercover having an opening and a first fixing portion disposed around the opening; a cover member having a second fixing portion and detachably attached to the undercover to close the opening; and a fixing member configured to detachably attach the second fixing portion to the first fixing portion, the fixing member being fixed to the first fixing portion and the second fixing portion from a lower side of the undercover. The undercover includes a general portion and the first fixing portion, and at least the general portion and the first fixing portion are made of a board member having a constant thickness. The second fixing portion of the cover member is thicker than the board member. The second fixing portion of the cover member is located over an upper surface of the undercover.

An underbody structure for a motor vehicle has: at least one underbody panel; and at least one air guide. The air guide is assigned to the underbody panel and has at least one separation edge for bringing about a flow separation. The air guide is passively pivotable back at least in sections behind a plane formed by a carriageway-side outer side of the underbody panel such that the separation edge is capable of yielding upon contact with an obstacle in order to avoid damage.

An underbody structure for a motor vehicle has: at least one underbody panel; and at least one air guide. The air guide is assigned to the underbody panel and has at least one separation edge for bringing about a flow separation. The air guide is passively pivotable back at least in sections behind a plane formed by a carriageway-side outer side of the underbody panel such that the separation edge is capable of yielding upon contact with an obstacle in order to avoid damage.

The present invention relates to a modular way to build a rolling chassis using composite materials without custom forming, and yielding appropriate weight distribution (centre of gravity) and torsional and bending rigidity.

The present invention relates to a modular way to build a rolling chassis using composite materials without custom forming, and yielding appropriate weight distribution (centre of gravity) and torsional and bending rigidity.

A body structure for an automotive vehicle includes an enclosure for a power source, an upper shear structure assembly and a lower shear structure assembly. The enclosure includes a front cross-member, a rear cross-member, a left rocker and a right rocker. The upper and lower shear structure assemblies are disposed across the top and bottom of the enclosure, respectively, and are fastened to respective top and bottom surfaces of the cross-members and rockers. The upper and lower shear structure assemblies may include respective front and rear generally trapezoidal sections configured for attachment to respective front and rear box structures. Each of the shear structure assemblies is effective to dissipate in-plane a portion of an external load imposed upon the enclosure.

A vehicle chassis platform including: a frame having a front frame end, a rear frame end, a longitudinal frame axis, an upper frame surface, a bottom frame surface, a first longitudinal lateral frame surface and a second longitudinal lateral frame surface, wherein the upper frame surface is substantially flat; and two or more mechanical connection assemblies each coupled to one of the first and second longitudinal lateral surfaces, each of mechanical connection assemblies to couple a vehicle corner module (VCM) to the frame and to transfer mechanical loads between the frame and the VCM when the VCM is coupled to the frame.

A vehicle chassis platform including: a frame having a front frame end, a rear frame end, a longitudinal frame axis, an upper frame surface, a bottom frame surface, a first longitudinal lateral frame surface and a second longitudinal lateral frame surface, wherein the upper frame surface is substantially flat; and two or more mechanical connection assemblies each coupled to one of the first and second longitudinal lateral surfaces, each of mechanical connection assemblies to couple a vehicle corner module (VCM) to the frame and to transfer mechanical loads between the frame and the VCM when the VCM is coupled to the frame.

A vehicle chassis platform including: a frame having a front frame end, a rear frame end, a longitudinal frame axis, an upper frame surface, a bottom frame surface, a first longitudinal lateral frame surface and a second longitudinal lateral frame surface, wherein the upper frame surface is substantially flat; and two or more mechanical connection assemblies each coupled to one of the first and second longitudinal lateral surfaces, each of mechanical connection assemblies to couple a vehicle corner module (VCM) to the frame and to transfer mechanical loads between the frame and the VCM when the VCM is coupled to the frame.

The present disclosure provides a chassis comprising a frame, two hanging units symmetrically provided at both sides of the frame, and a front guiding wheel and a rear universal wheel provided below the frame, wherein each of the hanging units comprises a mounting rack fixedly connected to the frame, a hanging rack slidably connected to the mounting rack, and a driving wheel rotatably connected to the hanging rack, and the front guiding wheel is provided with a first driving motor, and the driving wheel of each hanging unit is driven by a second driving motor, and wherein a closed loop speed control system is formed between the first driving motor and both second driving motors, such that a rotational angle of the front guiding wheel is adjustable via the first driving motor when revolving speeds of both second driving motors are changed.