News

Study: gasoline direct-injection engines emit many particles

According to a study by the Bern University of Applied Sciences, gasoline engines with direct injection emitted a particularly large number of hazardous particles. The current study shows that emissions in real traffic are significantly higher than in the test lab. Deutsche Umwelthilfe (DUH), which commissioned the study, is therefore calling for the installation of filters like those in diesel engines.

Gasoline engines with direct injection emit significantly more harmful particles in traffic than in laboratory tests. With a realistic driving behavior, the emission of pollutants rose sharply in the test. "This can be easily remedied by car manufacturers installing a particulate filter, as they do with diesel," says Dorothee Saar, an expert on air pollution control at DUH. A Hyundai 30 GDI with 1.6 liters and a VW Golf VII TSI with 1.4 liters were tested. The Volkswagen complied on the test bench with the limits for particulate emissions applicable from 2014 and from 2017. The Hyundai was only below the weaker 2014 limits. On the road, however, the Golf’s emissions were significantly higher than those of the Hyundai. In the second run with particulate filter, the emissions of the Golf were almost completely reduced.

In Dorothee Saar’s opinion, the laboratory test is simply not comparable with the behavior of drivers in real traffic. On the road, for example, significantly higher top speeds and stronger accelerations were achieved. Simply put: Hardly anyone has a driving style as mabful as that simulated in the lab.

Techno

Car country: usa send 11p wlan in pension

Car country: USA Send 11P WLAN in pension

The US regulatory workfederal Communications Commission (FCC) has implemented its scheduled plan for December 2019: It uses the car consultation PWLAN (IEEE specification 802.11p) after a long response phase the radio spectrum.

Although this only affects the US, but the decisions of the FCC often have groundbreaking character for other regulatory keeps. In Europe, the step is attracting attention, because the auto industry is split in two bearings: some companies, including the world-growing autoconzers Volkswagen, set to 11p, while others prefer the modern mobile technology C-V2X (Cellular Vehicle-to-Everything). C-V2X Grundet on mobile radio techniques LTE and 5G.

No place for two rivals

The main entity for the development of the two methods is the reduction in the number of traffic totes and at all the risk minimization in the strain traffic. For this, vehicles warn each other from hazardous situations such as sudden brakes, unsuitable construction sites or black ice and report when a rescue car crosses the way. 11P and C-V2X are not compatible, and that is the CRUX: research and policies worldwide are convinced that a uniform specification is required for car consultation.

News

Tenfoilox: firefox-fork for powerpc macs before

Tenfoilox: Firefox-Fork for PowerPC Macs before

The browser Tenfourfox designed for PowerPC Macs will soon be actively maintained. Tenfoilox FPR32 is said to be the latest version in which new stability and safety patches of Firefox remain, as the developer Cameron Kaiser announced. He wanted to do so far possible to take into account all security updates to Firefox 93 in September for Tenfourfox and then set the further development.

Old Macs lose secured browser

Tenfoilox is a Firefox-Fork, which is designed for the compatibility with Macs with PowerPC processors and is offered in specially optimized versions for G3, G4 (and G4 +) and G5 processors for download. The browser based on Firefox ESR 45 offers – in addition to current security updates – many functions of a modern browser on very old Macs, which are still under Mac OS X 10.4 tiger and 10.5 leopard run.

With the For TenfoilerFox, users: inside old Macs, on which Apple has long been no longer supported versions of MacOS and Mac OS X, so that the important possibility to use a well-maintained browser.

Auto

Dynamic performance control from bmw should improve curve behavior

Dynamic performance control from bmw should improve curve behavior

Miramas (France), 9. July 2007 – Why, BMW likes to call the rear drive as standard drive? The corporate spokesman laughs and says: Think of the long rear extremities of rabbits or Kangurus. Who can run quickly in nature, which is usually with the hind legs gas. Well, and so it’s just with the cars, so the speaker. There may be something, although in winter we have already seen some rear shooters who stuck in the snow. The best traction delivers just the four-wheel drive. But some drivers complain about the substeer term of four-wheelers. This shortcoming is aimed to fix a new rear axle transmission called BMW as Dynamic Performance Control. We could try the innovation already in an X5 research vehicle.

Optimal torque distribution on the rear axle

Behind the term Dynamic Performance Control hides a mechanical-electronic system, which is independent of the engine power the continuously variable distribution of the drive torque on the two rear rollers. This is called, in a left turn more force is passed on the right rear wheel, and in a right turn on the left rear wheel. This results, so to speak, a piloting rear axle. Because if you are "gas" on the curvature wheel "Gas", the car is of course easier to the curve. This principle is known to those skilled in the skills "Active YAW" or "Torque Vectoring". A similar system sets Honda in Legend under the name Super Handling Allwheel Drive (SH-AWD). Subaru and Mitsubishi use the like in motorsport. But the BMW system has a special feature: it distributes the moments not only under load, but also in the thrust operation or with the clutch. The system is suitable for all drive types. However, the Munchner manufacturer wants to use it, however, to eliminate the understeering end of all-wheelers.

Auto

Alpina b5 biturbo: more power for the eight-cylinder

Alpina b5 biturbo: more power for the eight-cylinder

Buchloe, 19. April 2012 – The BMW M5 presented last year is a fascinating car, but the manufacturer has left one flank open. If the previous generation was still a Touring, the manufacturer has dispensed with a station wagon in the current edition. The reason for this decision lies in the significantly lower sales figures for the M5 station wagon. Alpina uses this gap and offers the B5 as a sedan and touring. Now the manufacturer has further developed the eight-cylinder in the B5. The promise: more performance with less consumption.

More power

The 4.4-liter machine now delivers 540 hp between 5200 and 6250 tours and offers a maximum torque of 730 Nm between 2800 and 5000 revolutions. The predecessor still had 507 hp and 700 Nm. The B5 Biturbo Limousine is intended to consume 10.5 liters in the NEFZ’s latest variant on an average of 10.5 liters to 100 kilometers, which corresponds to a CO2 outset of 244 g / km. The factory information for the touring is only 0.1 l / 100 km of it. Before checking the sedan had swallowed 10.8 liters, the station wagon 10.9 liters. Which the cars, moved, consumably consumes significantly more in practice, was allowed to be clear.

Higher price

The modifications bring even better driving values: On the way to a highest speed of fabulous 319 km / h, the hundred mark falls after 4.5 seconds, the touring needs only one tenth of a second more and becomes fast to rapidly 316 km / h. Of course, prices have risen: The limousine is from 99.200 euros to have the station wagon 102.520 euros. These are about 3800 euros more than before. BMW also offers the current M5 for a very similar tariff. Cost point: at least 102.800 euros.

Techno

Audi rs5: motor meier in fine twine

Audi rs5: motor meier in fine twine

Ingolstadt, 22. February 2010 – Actually the new RS4 turned off when it comes to his fans. At the Geneva Car Salon of 4. Until 14. Marz 2010, however, first shows the RS5. There he presented in his pronounced shell new all-wheel technology and a motor that remains economical in spite of his performance.

Performance full

Under the hood comes a high-rotating V8 suction motor with 4163 cubic centimeter displacement and benzindirect injection – a turbo ware maybe time rubber, but such a thick sucker still has a special charm. The aggregate is closely related to the ten-cylinder that drives the R8. With 450 hp, the RS5 engine even makes 30 hp more than the smallest R8 machine with 4.2 liters of displacement. Speeds are available: The maximum power is achieved at 8250 revolutions, 430 Nm torque are available between 4000 and 6000 tours, because it is joyful in turning. In just 4.6 seconds, the approximately 1.7 tonnes of heavy coupe should accelerate from zero to 100 km / h. The otherwise electronically limited tip of 250 km / h is read on request only at 280 km / h. In conjunction with the continuous seven-speed dual-clutch transmission S Tronic, the RS5 consumes 10.8 liters of fuel in the EU measurement cycle.

New four-wheel technology

As with Audi ubam, the RS5 also brings its power via all-wheel drive to the strain. When center differential that distributes the forces between front and rear axles, there is a new feature: the so-called crown-gear differential. It may vary widely due to its disk packs the distribution of torque between the axles. If necessary, it passes up to 70 percent to the front or a maximum of 85 percent to the rear. The standard interpretation of 40:60 rear-biased. The new differential works with an electronic torque vectoring, which accesses all four wheels. If one of the inside of the curve Rader is relieved too much at brisk pace, it slows the system down slightly before slippage occurs. This ensures on the one hand for more traction, and on the other hand produces a yaw moment that supports the turning.

News

Driving report: yamaha niken

Driving report: yamaha niken

Innovations in motorcycle construction have always been discussed HEIB. What began with ABS in the early nineties, continued in the two thousands in the slip control: driving assistance systems were first perceived by many as an attack on self-determination. It becomes particularly hot if a new concept is pushed the idea of the motorcycle in its groundfest, as currently the electric wheel.

Like the reaction to Yamaha’s new Niken (say: Neiken), it is still more violent. Rarely has a motorcycle in advance to plug in as much HAME, such as the tricycle, ahhh that Leaning Multi Wheeler Named motorcycle of Yamaha.

Can three rade motorcycle?

All those who know a little with the Yamaha model palette may have been in demand at the first presentation of the Niken at the end of 2017, where the Japanese take the courage to take a concept. As a reminder: Already in 1993, Yamaha tried with the sports tour GTS 1000 at the first motorcycle produced in series with aerial control. And 25 years ago, the experimentation of the Japanese was punished. With only nearly 1400 specimens sold in Germany, the GTS could confidently be referred to as a flop. At that time, however, was above all the lack of maturity of the system, which did not generate real advantages and the disgountable, curvature front-wheel dimension of 130/60.

News

Soder: “car pact against driving bans”

Soder: 'car pact against driving bans'

Bavaria’s Minister President Markus Soder (CSU) wants to prevent diesel driving bans in the state by introducing a package of measures. "One thing is quite clear: Bavaria is a car state and therefore we are against driving bans. They achieve little and only burden traffic and the burghers," the CSU politician told the dpa in Munich. He added that the state government was in favor of adhering to limit values, "but we should also show more common sense again.".

To improve air values in Bavaria’s urban centers, Soder announced a new car pact with various measures: "We now want to initiate scientific studies in Bavaria. Which limit values are actually meaningful and relevant for health protection and what is the relation to other limit values?."From Soder’s point of view, the example of driving bans for diesel vehicles in Hamburg shows "how absurd this is in practice. A few meters of road are blocked and everyone drives around in the dark. That is no solution for the pollution."

In addition, the state government wants to further expand local public transport. "We will invest 100 million euros more per year. With new trains, buses and support for routes that have not been so profitable up to now, we want to intensify the tangential traffic around the conurbations and improve the frequency," said Soder. The auto pact will go far beyond the diesel ie, he said. "It’s also about the qualification of the workforce. The top priority, however, is to avoid driving bans."

News

Corona warning app: “red lamp does not automatically mean high risk”

Corona warning app:'rote lampe bedeutet nicht automatisch hohe gefahr''rote lampe bedeutet nicht automatisch hohe gefahr'

Nevertheless, not all the details of the core process of the National Corona Warn app are known that officially imagine politics and participating companies on Tuesday. Sure, however, it is that it is one "red signal" would give if a user had a risky contact with a coronavirus infected, Ute Teichert explained director of the academy for public healthcare, on Monday at a web conference of the Science Media Center (SMC). These" red lamp" mean "not automatically a high risk".

A chain of events

Teichert called a warning through the app as "a note of several in a chain of events that you have to look at". The affected user is only called the day of an increased risk of infection, not the time. He also experiences multiple contact with infected. There is a recommendation in such a case, the location health department, call the on-call service 116 117 or the family doctor.

At the behavior, the normal task of risk demonstration, in which they worked after an individual contact personnel scheme, succeeded in the chairman of the Federal Association of Arztinns of the Public Health Service. They had to find out how closely coincidence had been on a said day, whether people had gone with or without mouthguard on clothfooling and had chosen about. Every note should be further verified.

News

10 Years chromeos: google tapped chromebooks narrower with android

10 years Chromeos: Google tapped chromebooks narrower with Android

Google’s operating system Chromeos may experience what hardly a Google offer achieves: his tenth birthday. For this occasion, Google donates this month the new version M89 with a number of new features. Especially the toothing with Android advantages should be narrower. Horsebub remains the limited "durability".

Google has presented Chromeos for the first time in July 2009 and the year the first Chromebook commissioned as part of a pilot program. For Google I / O in May 2011, there were the first premixed chromebooks, namely of Acer and Samsung. This date Google now pulls up to celebrate ten years of chromos. The motto of the three S has been unnecessary since the start: Chromeos gates should be simple, fast, and safe.

Simple and safe brings with him that the users must make cuts in the episis of certain preferences. However, this significantly reduces the support effort in companies and educational institutions. And in schools are chromebooks according to Google the most bought gardures, worldwide. That in turn drives the parents’ parents who experience how their children handle with Chromebooks. More than 40 million chromebooks are in action in schools, more recently in Japan.