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How GM engineers are using diaper 'snow' to keep you warm

Testing how snow affects General Motors' vehicles isn't really a problem right now for the company's engineers, but in the dog days of summer the process isn't exactly easy. The only real option is for them to book time at the automaker's climatic wind tunnel. However, a flash of brilliance from an engineer allows snow to be simulated regardless of the temperature outside, and the discovery is all because of his daughter's wet diaper. The realization came to GM Thermal Systems engineer Nicholas Jahn while he was swimming with his daughter and noticed how her diaper ballooned in size in the water. He found out the substance that makes this possible is called sodium polyacrylate. When the material gets wet it grows and forms fluffy flakes that are a close imitation of snow. Best of all, the stuff can be prepared easily any time of the year, and it's reusable. The engineering team uses the material to test the effectiveness of the heating systems of GM's vehicles. They spread the sodium polyacrylate over the inlets at the base of the windshield to obstruct the airflow and then crank the heater. After some time, they can see how much is being sucked into the system and design more efficient systems in the future. See how the process works in the video above and read about the diaper discovery in GM's press release below. Diapers Change Chevy Cruze Winter Warm-up Time GM validation engineer uses diaper material "snow" to reduce frigid drives 2015-01-06 DETROIT – An item commonly found on an infant's changing table is helping General Motors' engineers simulate snow year round, ensuring heating systems in cars like the 2015 Chevrolet Cruze can quickly and efficiently warm its interior. Packed snow can prevent air from entering the inlet panel at the bottom of the windshield, obstructing the flow of air into the heating system and reducing the amount of air it can push out. This can lead to less efficient warming of the car's interior and windshield defrosting. "The last thing anyone wants to do when it's freezing cold out is scrape their windshield," said Nicholas Jahn, GM Vehicle Thermal Systems engineer. "The testing we perform on the Chevrolet Cruze with the diaper material allows us to maximize the car's heating capabilities." Ironically, Jahn stumbled upon his diaper-based testing method in the middle of summer. During a swim with his daughter, he noticed her diaper multiplied in size when it came into contact with water.

Auto Show Notebook: Legendary Continental name inspired Lincoln's designers

What's in a name? A lot for the Continental concept, and it gave Lincoln designers a sense of purpose as they styled the brand's upcoming flagship sedan. "The moment that we told them, it was amazing," Lincoln president Kumar Galhotra said. "They totally got it." "It" is cutting-edge technology wrapped in stately, large-sedan design. It's a nod to Lincoln's storied past, but a signpost for where the brand is heading. Though the Continental name dates to the late 1930s, Lincoln designers avoided making the concept overtly retro. "You can't let it pull yourself back too far in history, but you've got to design a car that lives up to the name," Galhotra said. Speaking to Autoblog on the floor of the New York Auto Show where the Continental formally debuted Wednesday, the Lincoln president reiterated that the car is on track to launch in 2016. It will compete against the Audi A6, Lexus GS, BMW 5 Series and other large luxury sedans. After its debut, the concept in New York will fly to China – another critical market for Lincoln – for display there. It will be replaced in New York by a prototype without an interior. The Continental is the latest high profile play by Lincoln to raise its image with consumers, who have either ignored or forgotten about it amid steep competition in the luxury sector from German and Japanese brands and a potentially resilient Cadillac. Lincoln sales are essentially flat compared with 2014 through the first quarter of this year, with total volume of 21,478 units. The middling start to 2015 comes on the heels of nearly 16-percent sales growth last year spurred by the launch of the MKC and the prominent signing of Matthew McConaughey to star in Lincoln advertisements. Other News, Notes & Quotes Speaking of names, Chevrolet did its homework before deciding to proceed with "Malibu" for its new generation of midsize cars. "We went out and researched it," said Alan Batey, president of General Motors North America. "People actually like the name 'Malibu,'" he said. Admittedly, the current Malibu has struggled in the marketplace against entrenched competitors, Batey said, but he's optimistic its awareness and historical value are assets to the dramatically redesigned sedan."The name's strong," he said. Meanwhile, in other Chevy news, the brand kicked off a new marketing campaign, "Real People, Not Actors" Wednesday. It will show consumers interacting with Chevys and their spontaneous reactions to the vehicles.

Chevy might've pulled out of NASCAR if it weren't for new Gen 6 car

We've been on the fence with NASCAR for some time now. On one hand, it's some of the closest racing anywhere in motorsports, with actual passing and door-handle-to-door-handle action as a matter of course. But on the other, it's become template racing - a personality-driven sport more about the drivers than any sort of loyalty to a particular automaker. The Car Of Tomorrow format really rammed that message home, with a racecar's identity coming down to little more than headlamp stickers slapped on the nose. That's not necessarily a bad thing in and of itself, but we've wondered for some time what's in it for the automakers, who pay big money to stay in a series that has had little increasingly little do with street car sales, let alone innovation.
Apparently General Motors was beginning to wonder the same thing. In a new ESPN report, Rick Hendrick, team owner of Hendrick Motorsports, suggests that GM would have seriously considered leaving NASCAR if it wasn't for the move away from the COT to the new Gen 6 racer. According to Hendrick, GM North America boss Mark Reuss spearheaded the charge away from the 2007 COT and toward a racecar with clearer automaker ties - cars like the new Chevrolet SS racer shown above. Learn more about the fight for a closer-to-production look in the ESPN story at the link.
Now, if we could just get more rear-wheel drive V8 coupes into showrooms....