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is the interior material of the song l dm-i as strong as that of the song l ev? why is it so much cheaper than the song l ev? let's take it apart today, starting with the front and rear anti-collision beams, and take a look!

front anti-collision beam

double layer roll pressed steel plate

after removing the front bumper, we can see a double-layer roll-formed steel front anti-collision beam inside, which is 1.26 mm thick and covers 78.14% of the front part of the car. compared with the previously disassembled song plus dm-i, song l ev and qin l dm-i, this car is between song l ev and song plus dm-i, and more like qin l dm-i.

both the song l dm-i and qin l dm-i are made of double-layer rolled steel plates. the song l ev is made of aluminum alloy with a "目"-shaped cross-section, while the song plus dm-i is the most common single-layer stamped steel plate.

the song l dm-i is the same as the qin l dm-i. a component similar to an energy absorption box is installed on the rear side of both ends of the anti-collision beam, with crush holes and wrinkles. this thing is called a collision induction block. when a small-area offset collision occurs on one side of the vehicle, the end of the anti-collision beam folds. this induction block can form a solid triangular structure with the longitudinal beam, causing the vehicle to deflect after a collision and better protect the occupants.

there is no buffer protection foam between the front anti-collision beam and the bumper, and a millimeter-wave radar is installed on the bumper skin.

this car is equipped with a secondary anti-collision beam, which is the same as the song l ev and qin l dm-i, while the song plus dm-i does not have a secondary anti-collision beam.

the rear anti-collision beam is also equipped with an energy absorption box.

like the song plus dm-i, this car does not have an active air intake grille, while the song l ev and qin l dm-i do.

the shotgun extends forward from the a-pillar and is connected to the longitudinal beam to form an embracing structure, which can provide better support and cushioning, and is consistent with the structure of song l ev, song plus dm-i and qin l dm-i.

although the energy absorption box is made of ordinary square steel plates welded together, the angle of the energy absorption box is tilted outward to form a "trumpet" shape, which is the same as the qin l dm-i. this design is quite popular now, mainly to improve the 25% offset collision test results. the aluminum alloy energy absorption box of the song l ev and the steel plate energy absorption box of the song plus dm-i are both ordinary styles.

rear anti-collision beam

single layer stamped steel plate

after removing the rear bumper, we found that the rear anti-collision beams of these four cars are basically the same, all of which are single-layer stamped steel plates with a thickness of a little more than 1 mm.

the rear crash box is very short and has crumple folds and perforations.

the rear tailgates of these four models all protrude from the rear anti-collision beam, so if a rear-end collision occurs, the rear tailgate is more likely to be damaged.

summarize

closer to qin l dm-i

if compared with song plus dm-i, the anti-collision beam of song l dm-i is stronger. but if compared with song l ev, they are basically two different cars. although they are both called "song l", the anti-collision beam structure and materials are different. in fact, the front and rear anti-collision beams of song l dm-i are more similar to those of qin l dm-i.

so what is the chassis condition of this car? is this car a hybrid version of song l ev or an suv version of qin l dm-i? please continue to pay attention to the subsequent disassembly content. (the measurement data, conclusions and opinions in this article and video are only responsible for this car, and the measurement data is responsible for the published experimental methods.)

2024 byd song l dm-i anti-collision beam rating