1956 Chevrolet Bel Air 4 Door Sedan V8 Hot Rod Custom Cruiser on 2040-cars

Auto blog

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.

Minor updates coming to 2017 Chevy Volt

The 2016 Chevrolet Volt has just appeared at dealerships, but already the talk has turned to the mildly updated 2017 model going on sale in a few months. The new Volt has already won the 2016 Green Car of the Year award and is sparking a noticeable uptick in sales over the outgoing model. Chevy is now planning to keep interest in the second-generation Volt strong with some tweaks and increased availability. The main equipment change to the 2017 Volt will be the option of adaptive cruise control on both the base LT and uplevel Premier, according to CarsDirect. While the Volt already offers safety technology such as blind-spot monitoring and forward collision warning, adaptive cruise has been conspicuously absent. But the largest change will be that the 2017 Volt gets nationwide availability. GM decided to focus on strong markets for the original Volt when it chose where to introduce the new model. Buyers interested in the second-generation model have until now been limited to making purchases in states such as California, Maryland and the Northeast. This will all change soon. Conversely, you can have a 2016 Nissan Leaf now in all 50 states, or a 2016 Toyota Prius very shortly. But in our first drive of the Volt, we found it to be, "an efficient, no-compromise EV" and worth the wait for those who don't live in the states with the strictest emissions laws. Perhaps the reason the 2016 Volt is already being given an injection of dealer incentives is because of its relatively short lifespan. The 2017 Chevy Volt should arrive on dealer lots by spring 2016. Featured Gallery 2016 Chevrolet Volt: First Drive View 24 Photos News Source: CarsDirect via Green Car Reports Green Chevrolet Electric Hybrid ev sales

GM recalls 64k 2011-2013 Volts over carbon monoxide fears, stop sale on Trax and Encore

General Motors is recalling 50,249 Chevrolet Volts from the 2011-2013 model years in the US and an additional 13,937 exported examples because of fears over carbon monoxide buildup. According to a statement, if a Volt is accidentally left on while running on electric power, its internal combustion engine would eventually kick on to charge on the battery. If this happens in an enclosed space, then carbon monoxide can fill the area, leading to a potential exposure to the dangerous gas. According to GM, there have been two injuries reported due to this issue. To fix the problem, there's a software update to limit the time the vehicle can idle. According to Automotive News, GM is also issuing a stop sale on about 2,300 examples of the 2015 Chevrolet Trax and Buick Encore. In these compact crossovers, it's possible that the steering column assembly could touch the power steering circuit board and cause damage over time. This could potentially cause the system to stop working. Automotive News indicates that the automaker is still working with the supplier to get the necessary parts to repair this problem. General Motors is recalling 50,249 Chevrolet Volts in the U.S. from the 2011-2013 model years to implement a software update that will limit the amount of time a vehicle can be left idling in the "on" or "run" position. If a driver exits the vehicle and inadvertently leaves the vehicle "on" by failing to react to cues and warning chimes emitted by the vehicle, the vehicle's high-voltage battery will drain after a period of time and the gasoline engine will begin to run. If the gas engine runs for a long period of time within an enclosed space, such as a garage, carbon monoxide could build up. GM is aware of two injuries, both related to carbon monoxide build up. The total recall population including Canada and exports is 64,186. Related Video: