Germany's diesel uncertainty leaves 300,000 cars unsold

Dealerships in Germany are unable to sell 300,000 used cars equipped with Euro 5 diesel engines  because of fears that high NOx emissions may lead to older diesels being banned from cities such as Stuttgart and Munich.

"These vehicles can only be sold with great difficulty at the moment because customers are uncertain," said Thomas Peckruhn, head of the ZDK association of German dealerships in a statement on Thursday.

ZDK said it surveyed of 718 franchise retailers across all brands on Aug. 22. It said the survey was the first it has directly conducted among dealers, and as such there were no comparison figures.

Three-quarters of dealers responding to the survey said they have had to write down the value of some of their inventory. Nearly 85 percent claimed automakers were not providing enough assistance to help reduce the stock. As a result of slow sales, 77 percent of dealers said they had cut prices, the dealer association said.

News from: http://europe.autonews.com

The selection of insulated paper, insulating varnish and insulated baffle

In electrical equipment such as generators, industrial starter, insulation material is the weakest part, the insulation material is particularly susceptible to accelerate the aging and damage due to high temperature. Different insulation materials have different heat resistance. The insulation materials you choose to use on electrical equipment will affect the ability of heat-resisting of the equipment. So generally the electrical equipment is specified with the maximum temperature when it’s operating.

The insulation class is as follows:

Insulation Temperature Grade	Class A	Class E	Class B	Class F	Class H
Maximum Allwable Temperature（℃）
Winding Temperature Rise Limit（K）
Performance Reference Temperature（℃）

Therefore, insulation class F shows that the heat-resisting temperature of insulation material that used on generator (motor) is 155℃. Meaning the user should ensure the temperature of the insulation material does not exceed 155℃ during the operation of the generator to ensure that the generator works properly.

Insulating paint is the necessary insulation material for armature. Under normal circumstances, the insulation material of class F, heat-resisting temperature 155℃, will be applied to the production of standard armature in domestic while for high quality armature they will use insulation material of class H.

Insulation paper is also one of the insulation materials that must exist in the armature. The insulation class from bottom to the top is highland barley paper, DMD insulation paper, NMN insulation paper and NHN insulation paper. Among them, highland barley paper has the worst insulation effect. It’s a double-sides composite material which made of polyester film coated with adhesive and pasted to insulating board, commonly used in the structure of Class E insulation material.

In general, DMD and NMN insulation paper will be applied to standard armature in domestic. Usually it is made of transparent or opal polyester film, composites special materials on the two sides and no acid in the adhesive making it of high temperature resistance. It has a good mechanical and electrical performance and generally the temperature resistance class is F.

As for high quality armature, they usually use NHN insulating paper. The temperature resistance class is H, generally it is made of polyimide film and composites Dupont paper on the two sides.

Also the temperature resistance of insulated baffle plays an important role in armature. In domestic market, they often use insulated baffle with temperature resistance of 220℃ in standard armature but use insulated baffle with temperature resistance of 300℃ in high quality armature.



Tips by Shuocun Zhou.

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Merkel will see Germany joining gasoline, diesel car sales bans?

German Chancellor Angela Merkel on Saturday rejected a proposal made by her Social Democrat rivals, Martin Schulz, to introduce quotas for electric cars in Europe, arguing the implementation of such targets would prove too complicated.

Instead, Merkel called for a bigger strategy for helping the auto industry make the transition to producing electric cars and she has repeatedly warned against "demonising" diesel engines.

But this Monday, in an interview with SUPERillu magazine, Merkel said Germany must eventually follow other European countries in banning the sale of new gasoline and diesel cars.

"I don't want to name an exact year," she said, but Britain and France's plans to phase out internal combustion-driven cars by 2040 "were the right approach."

Will Merkel see Germany joining gasoline, diesel car sales bans? If so, what does it mean to auto industry?

Material selection of Armature Sheet

The core of the armature is used to form the magnetic flux path and supports the armature windings. Generally stacked from silicon steel sheet.

The magnetic field polarity of the core has been changing because the armature turns. The rapid changes in the polarity will generate eddy current in the core making the current into excessive heat and consumption. The eddy current loss is inversely proportional to the resistance of the ferromagnetic material, which is proportional to the square of the thickness of the core steel sheet.

There is not only the eddy current loss in the core, but also the hysteresis. And the hysteresis loss is related to the hysteresis loop area of the ferromagnetic material. The smaller the hysteresis loop is, the smaller the hysteresis loss.

Silicon steel sheet is adding a small amount of silicon to the steel thus the resistivity is bigger and the hysteresis loop is narrower, so using the silicon steel plate to make the core can have a smaller eddy current loss and a hysteresis loss.

But in order to reduce the cost of armature production, the manufacturers in domestic will use cold-rolled plate or even scrap steel plate to produce the core of armature. So the quality of the armature won’t be hard to imagine.



Tips by Junmiao Wang.

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Replacement Starter Motor for Renault DXI11

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Top German Automakers Sued in U.S. Over Two-Decade 'Cartel'

German’s major automakers were accused in a U.S. lawsuit of acting as a cartel, colluding for nearly two decades to limit the pace of technological advances in their vehicles and stifle competition -- allegations that widen the scope of the latest scandal to hit the nation’s auto industry.

BMW AG, Daimler AG, Volkswagen AG and its Audi and Porsche brands shared competitive information about vehicle technologies with one another from 1996 through at least 2015 in violation of antitrust laws, according to a complaint filed Friday in San Francisco federal court.

The supplier of VW’s cheat software, Robert Bosch Gmbh, was also named as a defendant in the lawsuit.

“We consider this class action suit to lack merit,” Han Tjan, a spokesman for Daimler, said in an emailed statement. “We will defend ourselves by all legal means.”

BMW spokesman Kenn Sparks and VW’s Jeannine Ginivan said their companies had no comment on Friday. The other companies didn’t respond to messages and emails seeking comment after normal business hours.

The suit filed Friday is the second in the U.S. to allege the anti-competitive actions by the companies. Drivers filed a similar class-action suit in New Jersey federal court on Tuesday alleging German automakers created an anti-competitive culture in the U.S. and conspired over 20 years to increase prices of luxury vehicles while sharing technology to skirt emissions norms.

News from: https://washpost.bloomberg.com