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VW joins Daimler's protest of new A/C refrigerant as EU deadline for compliance passes

The case of Dupont and Honeywell's refrigerant R-1234yf is doing the exact opposite of keeping things cool. The two chemical companies have spent years and hundreds of millions of dollars developing R-1234yf to replace R-134a, the new refrigerant shown to be 99.7-percent kinder to the environment than the one it is meant to succeed. Part of that development has been years of testing by governments, outside safety agencies and automakers to approve the chemical for use in cars. It passed the protocols necessary for the European Union to declare that new and significantly revised cars from 2013 onward needed to use R-1234yf, and mandated that every car as of 2017 must use it.
Enter Daimler AG. The automaker created a head-on collision test with a B-Class at their Sindelfingen test track that would lead to the pressurized refrigerant being sprayed on the engine. The result in 20 out of 20 test was that the refrigerant burst into flames as soon as it hit the hot engine, while Daimler says that R-134a does not catch fire in the same test. Another unexpected result of the R-1234yf test was the release of hydrogen flouride, a chemical far more deadly to humans than hydrogen cyanide, emitted in such amounts that it that turned the windshield white as it began to eat into the glass.
Said a Daimler engineer in a Reuters piece, "It was scarcely believable. The most complicated lab tests conducted using the most sensitive measuring instruments around found nothing and all we do is drive a car around a couple of times, open a tiny hole in the refrigerant line and the next thing you know the car is on fire." So Daimler said it wouldn't use the refrigerant, and it recalled the cars it had already shipped with R-1234yf.

Recharge Wrap-up: Houston's bus revival, autonomous trucks on the Autobahn

A documentary shows how Houston, Texas significantly improved its outdated bus system. Called High Frequency: Why Houston is Back on the Bus, the short film describes how the city reimagined its bus system to become more efficient, more useful and more popular. Despite some opposition, the change has proven to be effective, with bus ridership up eight percent in three months, and light rail ridership up due to complementary bus routes. See the video above, and read more at CityLab. Automakers sent autonomous semi trucks on the German Autobahn as part of the European Truck Platooning Challenge of 2016. Mercedes-Benz, Volvo and Scania, among other groups, sent platoons of trucks between Stuttgart, Germany, and Rotterdam, Holland. In Mercedes's platoon of three trucks, the lead truck was fitted with lasers and other sensors to guide the convoy down the road. The two following trucks relied on vehicle-to-vehicle communication to trail 50 feet behind the lead, making room for cars to come between them and closing the gaps when able. The close following distance provides fuel economy gains of up to 10 percent in the rearward trucks on account of the reduction in drag. Read more at Hybrid Cars. Renault has reduced NOx emissions in its Euro 6b diesel vehicles in real world driving conditions. By improving its exhaust gas recirculation systems and NOx traps, nitrogen oxide emissions are cut in half on average, under certain driving conditions. The improvements will be included in vehicles leaving the factory beginning in July of 2016. Beginning in October, owners of Renault Euro 6b diesels can have the modifications added to their cars for free. Read more from Renault. Tata Technologies is creating an innovation lab in California to partner with EV technology companies. Having a tech center in California allows Tata to work on technologies that will largely be deployed in the company's main market of Asia. "Today, we are partnering with companies and startups who have aspirations to sell in China, but a lot of what they do is in California," says Samir Yajnik of Tata Technologies. Read more from The Economic Times. BMW's i Ventures is investing in mobility-as-a-service software provider RideCell. RideCell provides technology for services such as carsharing, ridesharing and other transit services. "The convergence of transportation trends in cities is of key importance to BMW," says Ulrich Quay, head of BMW i Ventures.

2016 Singapore Grand Prix Race Recap | Setting the stage for the final rounds

The Singapore Grand Prix always features a safety car. This year the nation-state got caution out of the way early: seconds after the lights went out, Toro Rosso's Carlos Sainz collided with Force India's Nico Hulkenberg, sending Hulk into the wall minus a wheel and some bodywork. The safety car led the field for three laps, then ducked into the pits so abruptly that a track marshal was still retrieving debris as race leader Nico Rosberg hit the throttle down the front straight. Rosberg avoided the pedestrian on his way to a two-second lead over Daniel Ricciardo in the Red Bull, Lewis Hamilton in the second Mercedes-AMG Petronas, and Ferrari driver Kimi Raikkonen. On Lap 8 of the 61-lap race Mercedes engineers warned Rosberg and Hamilton about brake management. Rosberg had no trouble until the waning laps of the race, his teammate inadvertently the cause. Raikkonen got ahead of Hamilton on Lap 33 while Hamilton nursed his car. Trying to get Hamilton back in front of the Ferrari, Mercedes pitted Hamilton on Lap 46 and also ordered him to turn his engine up. Ferrari debated for a lap about whether to bring Raikkonen in, finally issuing a last-second order to pit. The Finn emerged behind Hamilton, but executing the trick to get Hamilton back into third gave Ricciardo breathing room in second place. Red Bull brought Ricciardo in on Lap 48 for a set of super soft Pirellis. Returning to the track 25 seconds behind Rosberg, Ricciardo cut from one to four seconds out of that gap on every lap. By Lap 59 the Aussie was little more than a second behind the German. Had the race gone three more laps, Ricciardo might have pulled off the upset. This time Rosberg stayed in front to win his third race in a row and his first victory in Singapore, all in his 200th grand prix. Ricciardo and Hamilton completed the podium; Raikkonen claimed fourth. Sebastian Vettel wrangled an incredible fifth place after starting last; the German set the worst time on the grid when his suspension broke in Q1. Max Verstappen, having lost places at the start due to wheelspin again, recovered for sixth. Fernando Alonso made the most of his McLaren with seventh, ahead of Sergio Perez in the lone remaining Force India, a resurgent Daniil Kvyat in the Toro Rosso, and Kevin Magnussen scoring Renault's second points finish of the season. Hamilton has not had a good time of it since the end of the summer break – engine troubles in Belgium, a botched start in Italy, and zero rhythm in Singapore.