recent car crash test news pretty much have a negative, of course, there are also positive. MG ZS EV brand and HS participated in European E-NCAP test, we have got five-star overall rating.
E-NCAP crash tests and other, like, in addition to the active censorship of individual models, the test object is to sell cars in the European market. Want to enter the European market, certainly not open around the E-NCAP test. MG brand sold in Europe, it must be in accordance with standard E-NCAP to the requirements of their own.
E-NCAP can be said to include C-NCAP, including more vehicle safety testing standard templates and templates, and even that is the world’s E-NCAP vehicle safety testing standards leader is not excessive (except IIHS US highways Agency uses relatively independent project).
This is of particular items E-NCAP “column shot burst”, has a high structural strength requirements.
E-NCAP compared to C-NCAP, and a program crash test score substantially uniform, except that a different percentile dummy (dummy body will be appreciated that different) , less than the lateral rigidity of the column C-NCAP impact testing.
Briefly, E-NCAP is one of the world’s benchmark in automotive safety testing of test items overall, scoring criteria strictly, E-NCAP five-star, gold is still pricey. Here there should be a friend to say that sentence: take the five-star does not mean that this car is absolutely safe.
I do not deny that, after all, E-NCAP or at any other crash test, or “test project” are fixed. But these fixed items, in fact, itself simulate several typical serious accident, “test sites” itself is derived from the realPractice.
and we can continue to dig deep and comprehensive evaluation of individual score behind the five-star, the amount of information it contains is still of great reference value.
we simply translate E-NCAP effect on MG ZS EV evaluation: the offset crash test, the dummy good restraint, knee, femur good performance reading parts of the body, dummy injury risk is low, and we believe that it is possible to ensure that the crew of different body, take in a different position, are able to get adequate protection. In the frontal crash test, the front passenger excellent protection, rear passenger’s chest slightly worse performance, but other parts of the performance is good. Side impact performance out, dummy unharmed. Rigid side pole impact, in addition to poor reading ribs, other aspects of performance excellence.
We have not found, in the entire part of the evaluation, no word is used to describe a case of damage of the vehicle body. This is the crash test of core values: people-oriented all.
The ultimate goal of vehicle active safety designed to protect vehicle occupants, while the car occupant safety evaluation consists of two dimensions: in the car by the secondary collision, squeeze pressure the risk of injury, as well as during the collision impact caused by the restraint device (seat belts is Le, the airbag “headshot”).
Therefore, two of the core vehicle body safety design goals: The first is to produce a high strength material with a variety of solid after the space, so that the vehicle can absorb crumple zones deform, it can still ensure that the body does not unduly invade the passenger compartment, maintaining occupant survival space.
So I put the frame do “hard” is not on line yet? Not so simple.
because the second goal was, during the collision, it is necessary to consider whether the human body by the impact force exceeds the limits of personal afford.
essence is to make vehicle collision in a very short period of time from a certain speed dropped to zero, theIf we put in a collision process as a “slam the brakes”, then the “braking distance” is the collapse of car shrinkage. As the larger the deceleration brake, the braking time is shorter, the shorter the braking distance.
and the relationship of the impact time and the impact receiving body is approximately inversely proportional. It is given a similar rectangular area, which base and height relation. The narrower rectangle, higher; wider, more short.
Therefore, the braking distance, time (rectangular bottom) shorter (rectangle height) the greater the people in the car collision receiving impact forces. The impact force is too large, even if the seat belts can effectively shackled occupant, the occupant’s chest, pelvis, neck, head still suffer because of too strong a pull damaged. We assume an extreme example, a car extremely hard, no energy-absorbing crumple, then it can be an instant hit stop, but the people in the car by the impact force will tend to infinity, then the weight will be crushed chest, will be broken pelvis, neck is snapped, visceral unprotected bones, bone fragments or even stabbed, gg the people.
to a given area of a rectangle, a bottom wider, more short. So we hope to use the method of energy-absorbing crumple, try to make the car “slam the brakes” Some time may be extended, the body withstand the impact of share assigned to go longer bear.
General automotive design, designed the human body to withstand the impact of the collision when the car is not higher than 30 g, which is 30 times their own weight.
This requires the use of various combinations of materials of different stiffness and strength, the kinetic energy of the vehicle body to deform, collapsing, breaking and other deformation of the stored material, the whole process can be sufficiently absorbing the collision energy. It’s kind of like body armor design: it is necessary to “catch” the bullet can not let the bullets penetrated the body armor they need to “resolve” the impact of the shot, the impact force to prevent bodily injured.
In addition to the design process to do outside in the early design and calculation, but also requires a lot of simulation softwareAnalog, pre-simulation more accurate, less time to go back to do the actual validation prototype vehicle detours, the actual performance better.
So back to MG wave of E-NCAP performance, indicating that MG’s body design, the impact the project can effectively protect vehicle occupants in collisions achieve world-class performance levels.
car is not enough security, capacity issues and attitude problems account for at least one. In the past a lot of new brands of passive safety bad performance, more capacity. But with more and more advanced levels of automotive design, the new high-performance materials more widely, also has the ability to OEMs go up.
[123 ] then the last question is, since more and more car safety, or even crash safety is the bottom line to some extent. So outstanding active and passive safety performance of this, we ranked the first of several vehicles selected conditions it? Not safe enough for the car, one-vote veto it? Comment in the comments area.