Recently, some netizens posted: An Ideal ONE rear-ended a Weilai EC6 on the highway and caught fire. It is reported that both drivers and passengers were fine and the cause of the accident is under investigation. Judging from the exposed pictures, both cars suffered varying degrees of damage after the collision. Among them, the rear of the Weilai EC6 was seriously damaged and deformed, the trunk glass was broken, one side of the bumper was dented, and the taillights were cracked. On the other side of the Lideal ONE, a fire broke out in the front cabin, but the cause of the fire is still unclear. As of now, NIO and Ideal officials have not responded to the incident.
Why did neither Ideal nor Weilai respond to this matter? Because no matter how the official investigates, they can’t explain it clearly.
First, let’s talk about the rear-end collision of the Lideal car. Although the Lideal ONE has active braking. But with the current conditions of assisted driving. On the highway, the speed is more than 100 kilometers per hour. If the car in front suddenly brakes suddenly, even if the car behind has ACC adaptive cruise and active braking, it will rear-end the car. Because we know that the braking distance of a car per 100 kilometers is 30 to 40 meters. The process of the active braking system from reacting to braking to stopping has already passed more than 40 meters, and it cannot be stopped at all.
So what is the role of active braking? It is not used on highways, but in urban areas, especially in urban congestion conditions. For example, if your speed is 60 kilometers per hour and below, and a pedestrian or pet suddenly enters the motorway, the vehicle will automatically brake after recognition to avoid a collision. So on the highway, at a speed of 100 kilometers per hour, active braking has no effect. It mainly relies on ACC, but if the vehicle in front suddenly slows down or the vehicle in front is stationary, ACC will not be able to brake.
Secondly, when we talk about fire, there are at least the following two conditions for a car to catch fire: one is flammable materials; the other is the source of fire.
Flammable products mainly refer to gasoline and engine oil. The fire source can be matches, lighters, some wires in the engine compartment, high-temperature exhaust pipes, horn relays, sparks generated by metal after collision, etc.
When a traffic accident occurs, the vehicle may have the following situations: 1. Sometimes, although the impact is serious, it does not come into contact with flammable parts such as wiring, oil lines, spark plugs, etc. It is just the mechanical parts that are severely impacted, which may not cause a fire or explosion. . But once these places mentioned above are damaged, it is very easy to catch fire.
2. If a vehicle is involved in a serious frontal collision, the rearward movement of the water tank may rupture the oil pipe. Since the engine is still running at this time, once the high-voltage wire falls off or causes a flashover due to leakage, the possibility of a fire is very high. big.
3. When a car rolls over due to a collision or other reasons, it is very easy for the fuel tank to leak. Once it encounters sparks caused by electric sparks or friction, a fire may occur.
Therefore, there are many factors that cause a fire after a car collides head-on, and it is very complicated. Especially after the fire was extinguished, the car had been burned beyond recognition, leaving only an empty shell. No matter how much the manufacturer checks, they can't find the problem. So all we can do is shut up, and the officials won’t say anything or explain. As time goes by, user attention gradually decreases.
