In recent years, the sales of electric car and new energy car have increased dramatically, and the momentum of some new power brands is even more amazing. We often say that our cars are comparable to millions of luxury cars. This slogan is good, and even BYD is not immune to the vulgarity. When Seal Auto released it, it also emphasized that this car is very safe. Indeed, compared with fuel vehicles, new energy vehicles have many advantages such as beautiful appearance, smart cockpit, sports car performance, etc., and consumers are inevitably moved in the face of momentum. But I advise everyone, don’t just focus on the surface of the car when buying a car with , but you should really pay attention to the core of a car - safety performance, and remember that safety is the greatest luxury of the car!
Recently, the media in the car circle made a big review on the rigidity of the body torsion. The participating models include Porsche Panamera, Mercedes-Benz GLS450, BMW 740Li, as well as luxury cars such as Lexus RX300 and Cadillac XT5. Finally, a BYD seal with a price of 200,000 yuan was brought to "put the back". From the beginning, this was not a fair contest, and the test results were convincing. Before the test results of
, let’s talk about why you need to pay attention to the test results of body twisting rigidity when buying a car? Because it is an important parameter for to measure the performance of the entire vehicle, it refers to the ability of the car body to resist elastic deformation when it is subjected to external forces . To put it bluntly, when a vehicle driving at high speed encounters a sudden accident, how much impact the body can withstand and whether it can remain intact? If the body of is seriously deformed, it may cause the door to be unable to open and delay treatment time, and even the body directly squeezes the body of the driver and the occupant . The consequences are quite terrible.
So the body torsion rigidity strength is a key indicator to determine whether the car is safe. The higher the strength, the safer the car. Generally speaking, 40,000N·m/° is the threshold for a million luxury cars. The torsional rigidity of luxury cars such as Porsche Panamera, Mercedes-Benz GLS450, and BMW 740Li is naturally not bad. BYD, which came to "competitors", is also very confident, claiming that its e platform CTB technology can integrate the body with the battery, and the torsional stiffness of the whole vehicle can be increased by 70%. Therefore, the first model equipped with CTB technology, the torsional stiffness of the whole vehicle is 40,500N·m/°. From the numerical perspective, it has exceeded the threshold for a million luxury cars, but practice is the standard for testing the truth. Let's take a look at the specific performance of these cars.
Media The method of testing the torsional rigidity of the vehicle body is to see if the trunk can be closed normally at the tilt angle. If it cannot, the vehicle will be deformed and the torsional strength is poor. First, there is no-load test, and the test results are as follows: There are 2 6 cars that cannot be closed, namely the Porsche Panamera and the Cadillac XT5.
Mercedes-Benz GLS450 and Lexus Although the trunk is closed, the gaps on both sides are unbalanced, which means that the body still has some deformation. The best performers were BMW 740i and BYD, with the trunk successfully closed and there was no obvious change in the gap.
Next is the load test. Two adults were sitting in the empty position of the wheels, making the body twist more severely. Test results: BYD Seal and BMW 740i still perform well, and the trunk can be closed, but although the Lexus RX300 is closed, the gap on one side is quite large , it is just because it does not have anti-clip function and does not bounce.
Judging from the results of the body torsion rigidity strength test, BYD Seal's performance was quite unexpected. I originally thought it was quite different from other models, but it was just a "back" player, but I didn't expect it to last and had excellent performance, so I had to accept it.
Right, I'm telling you that riding a car with strong body twisting is not easy to get motion sickness. Do you know why? Because the stronger the twisting rigidity of the body, the better the control foundation, the better the , the smaller the curved roll, the more stable the body posture, and the vibration will be smaller when crossing bumpy roads, which will not easily cause passengers to feel uncomfortable. Therefore, from the perspective of safety, there are driving handling and riding comfort. When choosing a car, you need to focus on the torsional stiffness and strength of the car body. Do you remember it?
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