Nowadays the school bus has become a popular vocabulary, we in this before the two countries to the school bus are compared (click on: the school bus between contrast), although China at present the situation of the school bus is not so optimistic, but there were some manufacturers to push it in, saic has its commercial vehicle brand MAXUS jpmorgan chase recently went on V80 school bus base type car (the body structure and the school bus the same) rollover test, to verify this paragraph is about to enter the market school bus body passive security.
The rollover test test method and evaluation standard on one hand lessons from the European ECE (the United Nations economic commission for Europe) safety test standard, on the other hand also combined with domestic related standards, such as light buses upper structure strength test standard (GB 18986-2003), and rating agencies for Shanghai motor vehicle inspection center, it is a state of motor vehicle a third party products authoritative test organization.
About this test standards and methods, some netizens put forward the question, which we have some explanation:
First of all, the home side tumbling test for passenger was based on a bus in the national standard of the upper structure, national standard test method specified: "light buses upper structure strength test should be at the top of the static pressure strength or static loading method, temporary do not use body top loading CAE analysis method." In other words, at present for light buses, whether it be turned on side or malice, are static test, no dynamic test, and for no national standard test method of dynamic test, apparently as the manufacturer or the third party testing, it is very difficult to specific implementation.
Moreover, static test for structural strength also have reference significance, even for structural strength much higher plane, general structure strength is also through the car DVD
static loading to verify.
And as for the light buses, cars higher relative gravity, but usually turned on side, the lateral acceleration is not higher than the proportion of force acceleration too much, so finally turned over the lateral faster when have no imagination of big, the current national standard test method and the actual situation in fact it is quite close. In addition, except outside side tumbling, malice testing is also test vehicles of the strength of the upper structure one way, jpmorgan chase V80 school bus then will also carry out this test, to test the results we will also continue to pay attention.
Finally, the practical accident in some extreme case, it's hard to through the tests to verify and resolve, and now the world any a car testing institutions will not use 120 km/hour the speed of the vehicle front collision test to assess vehicle safety, to introduce a simulated rolling down the car cameras
meters deep groove, roll in N circle of dynamic test, actually for consumers and not too much significance.
When V80 school bus 43 ° Angle to the cabin, the car happened turned on side, turning side, the inside living space and vehicle parts will meet the national standards into the situation, at the same time, there are two doors can open up smoothly, it also meet the national standard at least a door open conditions.