The invention relates to a method for adjusting the rigidity of a car body in a car roof according to road conditions. The aluminum alloy or metal motor shell is used to replace the traditional shell, and the concave-convex structure is adopted. Three or more convex mounting ribs are integrally or fixedly connected with the motor stator, and the suspension dynamics are adjusted by adding or reducing supplementary shells. Due to the adoption of the structure, the invention has the advantages of good effect, small volume, light weight and convenient use.

Benefits of roof suspension:

1, which can visually affect the height of the whole vehicle. The vertical continuity of the car body color is broken by the black ornaments of A and C/D columns, which makes the visual height of the whole car lower than the actual height (black is the best color to reduce the size, so it is easy to be ignored by the brain because it is not easy to be focused by the eyeball).

2. By matching the black trims of A and C/D columns with the side windows, a more distinctive car body side can be formed, which is highly recognizable. Many brands regard this as one of the design DNA.

3. If it is an A-pillar bag, it can also visually make the whole cockpit feel that the rear position can enhance the sense of movement (the cockpit position is too front is the proportional pain point of most front-driven cars).