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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.

GM veteran Bryan Nesbitt tapped to head Buick design

General Motors styling veteran Bryan Nesbitt (pictured above) took over a new role on Monday as executive director of global Buick design and global architectures. Andrew Smith, who previously did that job and also coordinated the look for Cadillac, has remained in charge of the pen at Caddy with this shift. Nesbitt rose to prominence when he designed the Chrysler PT Cruiser, according to Automotive News. He joined GM in 2001 and has been there ever since in multiple high-level roles. In 2007, he was appointed vice president of design for North America and was later briefly general manager of Cadillac in 2009-2010. Nesbitt took over as the vice president of GM's international operations design in China in 2011. This shuffle also moves Ken Parkinson, currently styling boss for Chevrolet trucks, to China as design vice president there. In addition, John Cafaro becomes the person in charge of the look for Chevy globally, rather than previously splitting that role between cars and trucks with Parkinson. GM Global Design Leadership Changes – effective June 1, 2015. Bryan Nesbitt, Design Vice President, GM China will repatriate to North America and assume the position of Executive Director, Global Buick and Global Architectures. He will be located in Warren, MI. Bryan will be the design Champion for Buick in the US and China. Ken Parkinson, Executive Director, Global Chevrolet Trucks and Global Architecture will assume the position of Design Vice President, GM China. He will be based in Shanghai, China. Andrew Smith, Executive Director, Global Cadillac and Buick Design will assume the position of Executive Director, Global Cadillac. He will continue to be the design Champion for the Cadillac brand. In addition, he will continue to lead the Global Color & Trim team. He will be based in Warren, Michigan. John Cafaro, Executive Director, Global Chevrolet Cars will assume the position of Executive Director, Global Chevrolet. He will be the design Champion for Chevrolet. In addition, John will lead the exterior components and accessories team. He will continue to be based in Warren, MI. The roles and responsibilities of Helen Emsley, Mark Adams, Carlos Barba, Clay Dean, Michael Simcoe, and Teckla Rhoades remain the same. Related Video: The video meant to be presented here is no longer available. Sorry for the inconvenience.

GM puts e-commerce shopping in car dashboards

DETROIT — General Motors on Tuesday said it will equip newer cars with in-dash e-commerce technology, betting it can profit as drivers order food, find fuel or reserve hotel rooms by tapping icons on the dashboard screen, instead of using smartphones while driving. GM's Marketplace technology, developed with IBM, will be uploaded automatically to about 1.9 million model-year 2017 and later vehicles starting immediately, with about 4 million vehicles across the Chevrolet, Buick, GMC and Cadillac brands equipped with the capability in the United States by the end of 2018, GM said. GM will get an undisclosed amount of revenue from merchants featured on its in-dash Marketplace, Santiago Chamorro, GM vice president for global connected customer experience, said during a briefing for reporters. Customers will not be charged for using the service or the data transmitted to and from the car while making transactions, he said. "This platform is financed by the merchants," Chamorro said. GM will get paid for placing a merchant's application on its screens, and "there's some level of revenue sharing" based on each transaction, he said. It is too soon to say how much revenue GM could realize from the Marketplace system, he said. The GM Marketplace will compete for customer clicks and revenue with hand-held smartphones, which offer a far richer array of applications than the GM system will at the outset. Amazon.com is partnering with other automakers, including Ford, to offer in-car e-commerce capability through Amazon's Alexa personal assistant system. For example, GM will launch Marketplace with just Shell and Exxon Mobil icons in the fuel category. The only restaurant available for in-car table reservations at launch is the chain TGI Fridays, GM said. In addition, there will be apps for parking, and ordering ahead at coffee shops and restaurants such as Starbucks, Dunkin' Donuts and Applebee's. "We will be adding more vendors," with some coming in the first quarter of 2018, Chamorro said. In addition, he said GM plans to expand integration into its vehicles of music, news and other information services. GM also hopes to use its in-car Marketplace connections to expand purchases of products and services, such as additional access to in-car wifi, from its own replacement parts business and dealer network. Customers can "expect to see more service promotions coming through the platform," Chamorro said. Reporting by Joe WhiteRelated Video: