The role of the diesel Dekra gate: “The car software does not check” – Stuttgarter Nachrichten

 
 

By Klaus Köster "2016-02-10 10:00"> 10th February 2016 – 10:00 hours

 
 
 
 
 

 Dekra Car Chef Clemens Klinke Photo: Lichtgut / Achim Zweygarth
 

The cars VW with manipulated software brought to market, all had an authorization, if not by Dekra. The Stuttgart company still sees the VW scandal a reason for legal consequences.

 
 
 

Mr Jack, the Volkswagen Group has for years manipulated exhaust measurements for its new models. Had the testing organizations do not have noticed?

For the testing of new vehicle models, there are precise rules that describe in detail what is considered as – and what is not. The test cycle is defined in detail and equally binding for all auditors.

Even these detailed rules have not been sufficient to detect the cheating at VW.

Unfortunately, this is correct. Today it is clear: The regulations and test requirements need to be improved, particularly in view of the increasing importance of electronics in the vehicle. Especially since an inspector can not simply say, under the provisions of this vehicle has indeed passed, but I just check times further. but

Should not exactly happen to complicate fraud?

If you would continue to review on their own, would pay a customer. That would be something like that, as if we were in the main test simply examine things that are by law not required. In addition, the manufacturer has the choice of which organization examined the car that he wants to bring to market. He can pick his auditors in the EU.

So what’s the flaw in the system, which led to the VW scandal?

I would not speak of a fundamental flaw in the system, but the regulations have not kept pace with technology. Since closing the new legislation that has been prepared long before the scandal, now many gaps. Besides being necessary to know: An approval runs differently than if you would, for example, tinker a trailer for your car. Den you should demonstrate an appraiser, just checking each item and then on the compliance of this exact single vehicle, so this trailer, decides. For large series that looks naturally different.

If a carmaker treated better than a hobbyist?

Carmakers are treated differently. Is transferred to you rightly greater responsibility because they must comply with all rules with no exceptions for type testing. A large manufacturer is responsible to the approval itself – and confirms the well – that all the cars that he built to match the vehicle for which he once received an EC type-approval.

The legality of the software can be certified by the producers themselves?

The testing of the software itself is not yet included in the defined cycle. are tested functionalities, so the result or the effect of a control software.

The examiner must therefore certify something he has not tested.

The software itself is not certified. The manufacturer certifies that the vehicle and its measurements meet the requirements.

Could software be ever tested?

The programs are today extremely extensive, and it is difficult to see if somewhere a program line is hidden by a prohibited function. If one also takes into account how many models coming onto the market and need to be examined, such a test is very demanding.

VW software detects that the car is tested, and then lowered emission levels. Is there such software only for VW?

A test mode need any car, because otherwise a vehicle test would be impossible. Modern vehicles are equipped with so many sensors that you immediately notice if they are on a test bench. For although there rotate example, in a front wheel drive vehicle, the front wheels, not the rear wheels. And while the wheels spin faster and faster, the acceleration sensors register that the vehicle is not moving. prevents a test mode, the electronics attempt in such unusual driving state countermeasures.

What is the difference between a test and a cheat software?

The legal software says the car that it is not intended to control because of the unusual driving situation. A cheating software uses this necessary function to selectively influence the emissions. At VW, the emission has been switched to the test, which would otherwise not or does not work completely. That is forbidden.

The German Environmental Aid now throws Mercedes before, also to compete with unfair methods. In fact, the emission of nitrogen oxides is higher than to the test in real life by up to 25 times. Is the accusation justified?

Mercedes attributes this to the component protection. This allows to shut down the function of the emission control in certain situations, to prevent damage. Is it too cold, accumulates as urea, which is injected into the exhaust gases for cleaning, in the exhaust system. This can lead to the emission control no longer works and components have to be replaced in the workshop.

So is it legal, what Mercedes has done?

variations in function of the emission control are allowed under certain conditions. Whether the software meets at Mercedes these rules, I can not judge.

Such large deviations can occur but only because the tests are so far away from reality.

vehicles have been optimized to pass the tests. That’s not illegal. The car can – by this focus on the tests – in normal traffic, which differs from the test cycle, be worse. The test methods provide reproducible and comparable results, but often differ from individual real driving conditions.

This can not remain so yes.

This will also not last. The proposed new test methods are very helpful here. The future cycle WLTP (Worldwide Harmonized Light-Duty Vehicle Testing Procedure) will cause already prevail in the TestStand realistic conditions and higher speeds are achieved. The whole is also combined with a test that is driven and measured at the in real traffic. The results come reality then certainly much closer, even if the personal driving style will continue to make a big difference. Moreover, manipulation is difficult, if reduce the differences between test and real mode.

One of the curiosities of the present test method indeed one that the vehicles are actually prepared. Joints are taped and turned off electricity consumers. Is not that also borderline?

No one drives in real traffic with taped seams. It can not be actually that is driven in the type test that. Apart from the fact whether such individual measures bring anything at all: since the margin was previously too generous, but he was evaporated before the gas scandal partially. The new, adopted by the European Parliament legislation has adapted not only the procedure but also concentrated this margin further.

million cars have indeed periodically for general inspection. Why was excessive exhaust emissions not already found many checks on these?

Because the exhaust is no longer in modern vehicles are measured, but it evaluates only the data of the on-board diagnostics. It relies on the values ​​that provides the software of the car. But the case VW should have sufficiently shown why the reading of data is not enough. The software eliminates the function of the systems that the exhaust gas would be clean. But that does not necessarily agree. Therefore, the actual exhaust emissions should in general inspections in future again be measured – with a probe in the exhaust. Because in the end counts but what really counts.

The exhaust gases are also an important cause of high fine dust load in Stuttgart. Are bans the right recipe?

On Neckartor the air, in fact, is heavily loaded. I sometimes wonder that we talk about coverage bans, without having first tried them quite simple. When it rains, the stress is gone – and in tunnels as well, because there the fine dust is easily aspirated. But when aspirate and wash dust can – why you try it not only once so that you periodically clean the track with a sweeping and suction? Then the dust is bound with water and swept away. A cleaning vehicle remodel so would certainly not rocket science. I think it might be worth a try.

were to remain still the matter from industry and heaters. , ,

. , , However, against the bans can not do anything.

Germany discussed the promotion of electric cars. Can it help to reduce even the formation of fine dust?

The engine itself pushes the electric car though of no pollutants. But part of the emissions comes from tire wear and the brake, the resuspension just adds. Thus, an electric car produces fine dust. And quite apart from: Because gasoline increasingly have a direct, fine dust is also the gasoline engine on the subject. Since you will not be able to avoid particulate filter.

So far, mainly the diesel has a reputation to cause the particulate matter.

The Diesel with modern exhaust gas purification is far better than its reputation.

In order to avoid a renewed diesel scandal proposes Transport Minister Dobrindt that manufacturers must certify their vehicles regularly changing testing organizations. Are the testing organizations too close to the manufacturers?

Independence is a very important element of our DNA. We therefore welcome this proposal because it ensures that only the appearance can not occur, the auditors lacked independence. For accounting firms, there is the principle of rotation already.

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