[mooza]

Okay, I think quite a bit has been explained regarding development tests, a big thanks to all for the same !

A few more queries :

1. What about the tests carried out on production vehicles, the vehicles that we buy from the showrooms ? For example, how many hours of testing would the gearbox module and engine have seen before they get into a new vehicle ?

2. Again on production vehicles, how many kms of road tests are done on an average, for certifying the vehicle fit to be delivered to the customer ?

[CPH]

Originally Posted by mooza

Okay, I think quite a bit has been explained regarding development tests, a big thanks to all for the same !

A few more queries :

1. What about the tests carried out on production vehicles, the vehicles that we buy from the showrooms ? For example, how many hours of testing would the gearbox module and engine have seen before they get into a new vehicle ?

2. Again on production vehicles, how many kms of road tests are done on an average, for certifying the vehicle fit to be delivered to the customer ?

Individual tyre testing is done for about 20 minutes each tyre for approval for a car to see whether it is structurally okay. This might seem rather short, but then you need to see the testting.

Gearbox technology has not changed as much as people might think. All components developed are bench tested before they goon a production line. A lot of components are being developed by outside companies, which means that they are not newly developed parts.

During development problems in the designs will surface, which will be eliminated in different ways. When the prototypes are being built they go on different types of tests. Some of the works cars go on real time tests, where they are being used like in daily use. Others go off to the dessert for extreme testing and others to extreme winter condition. Some go on the companies tracks and test rigs etc. In total they run at least 20lakh kms.

Usually production starts before the summer break on one production line. In Germany they call this the 'Null Serie'. These cars end up in show rooms and as demonstrators and some are being sold. The production line will show up some flaws, which then can be corrected over the summer break when the new production lines are set up.

Further data collection will come from the dealers, who will have to lodge any complaint, warranty issue and reported fault or weakness. Such data is then being evaluated to wipe out weaknesses. This will be going on all the way to the end of the production cycle.

[KiloAlpha]

Just to add some information on the so-called Swedish Elk Test (also known as the Moose Test).

Älgtestet

The link above lists the speed that different cars could hold through the double-lane-change.

[SPIKE ARRESTOR]

Originally Posted by CPH

Individual tyre testing is done for about 20 minutes each tyre for approval for a car to see whether it is structurally okay. This might seem rather short, but then you need to see the testting.

Could you share what are these tests?

Originally Posted by KiloAlpha

Just to add some information on the so-called Swedish Elk Test (also known as the Moose Test).

Any idea how this name Swedish came? Did the "in/famous" incident take place in Sweden?

Also how is the criteria decided for speeds, is there any formulation or something?

Spike

[KiloAlpha]

Originally Posted by SPIKE ARRESTOR

Also how is the criteria decided for speeds, is there any formulation or something?

Spike

There is no criteria for speed. Cars are driven as fast as possible through a set of cones placed at standard positions on a track designed to simulate 2 back-to-back sudden lane changes.

[SPIKE ARRESTOR]

Ok, any idea about the placement of cones, how is the track set up etc. Is the track dimension deterministic ?

Spike

[volkman10]

Testing is known under the label of the INCAS (Ingolstadt und Korrosion Altern) and has Audi in this way check around 100 cars.
The main goal of the test is the test of resistance to corrosion and ageing car bodywork. Car is located in conditions that simulate the "lifespan" of cars 0f 12 years.

The test takes place in several stages. The first stage is spraying the body salt solution and exposure of the cars in the climatic chamber with a constant temperature of 35 C degrees.


The second step is the exposure to the tropical heat, car with temperatures around 50 degrees and a humidity of 100%.



The third phase is solar radiation, which emit 80 lamps individual power of 1200 watts.


The next phase is polar test, where the car is exposed to temperatures of-35 C degrees, and with the help of four compressor car exposes the cold wave of air to as many "maxed out" bodywork. If all these tests the body "not give in", followed by a new phase in realistic conditions.


Realistic tests lasted 19 weeks, during which cars exceed 12,000 kilometers, on different types of surfaces.


The final phase involves dismantling cars at 600 parts are examined and their weaknesses and corrosion. From just these parts, Audi draws conclusion for improvement of components for new models or improving the existing.

https://www.youtube.com/watch?v=3QGUHeSADfM

Source