2002 Chevy 3500hd Diesel Dump 4x4 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.

Nissan sells 3,117 Leaf EVs in May, climbs over 3,000 for first time ever

Chalk up a big win for the Nissan Leaf. In May, the world's most popular electric vehicle sold a record 3,117 units, the first time any pure electric vehicle has sold over 3,000 units in a month in the US (unless Tesla managed that feat but rolled the number into a quarterly report). This marks the 15th month in a row of record Leaf sales and the seventh where the Leaf was the top EV seller in the US. The challenge bar is set for someone to step up to compete with this all-electric wunderkind. Chevrolet did sell over 3,000 Volts once, in August 2013. The Leaf's one long-standing competitor, of a sort, is the Chevy Volt, which used to regularly outsell the Leaf but moved only 1,684 units in May. That's still an increase of 4.8 percent over 2013 but is part of a 4.5 percent decline in year-to-date Volt sales for 2014 compared to last year. The last time the Volt outsold the Leaf was October 2013. Chevrolet did sell over 3,000 Volts once, when it moved 3,351 in August 2013. Let's take another look at those 3,117 Leafs sold last month. They represent a 45.8 percent increase over May 2013, when 2,138 Leaf EVs were sold, so someone is doing something right in Japan and Tennessee. So far, Leaf sales in the US are up 36.4 percent year-to-date, to 10,389 EVs. That's just under half of the 2013 total, and it was accomplished in five months. In 2013, Nissan sold a total of 22,610 Leafs. Anyone want to hazard a guess where the total will be at the end of the year? As always, we'll have our detailed monthly sales write-up including other plug-in vehicles as well as hybrids and diesel car, up soon. For now, though, the big news is big Leaf sales. Read Nissan's press release below. Nissan Group reports May 2014 U.S. sales May 2014 May 2013 % Change Nissan Group Total sales (units) 135,934 114,457 +18.8 Nissan Division May sales 125,558 106,558 +17.8 Infiniti May sales* 10,376 7,899 +31.4 NASHVILLE, Tenn. – Nissan Group today announced total U.S. sales for May 2014 of 135,934 units, an increase of 18.8 percent over the prior year and a May record. Nissan highlights: Nissan Division set a May record at 125,558 sales in the month, an increase of 17.8 percent. This marks a monthly record for Nissan division in 14 of the last 15 months. May was the best-ever month for Nissan LEAF with 3,117 sales, an increase of 45.8 percent over the prior year. In May, LEAF passed 50,000 total U.S. sales since launch, further establishing it as the leader among electric vehicles.

Which electric cars can charge at a Tesla Supercharger?

The difference between Tesla charging and non-Tesla charging. Electrify America; Tesla Tesla's advantage has long been its charging technology and Supercharger network. Now, more and more automakers are switching to Tesla's charging tech. But there are a few things non-Tesla drivers need to know about charging at a Tesla station. A lot has hit the news cycle in recent months with regard to electric car drivers and where they can and can't plug in. The key factor in all of that? Whether automakers switched to Tesla's charging standard. More car companies are shifting to Tesla's charging tech in the hopes of boosting their customers' confidence in going electric.  Here's what it boils down to: If you currently drive a Tesla, you can keep charging at Tesla charging locations, which use the company's North American Charging Standard (NACS), which has long served it well. The chargers are thinner, more lightweight and easier to wrangle than other brands.  If you currently drive a non-Tesla EV, you have to charge at a non-Tesla charging station like that of Electrify America or EVgo — which use the Combined Charging System (CCS) — unless you stumble upon a Tesla charger already equipped with the Magic Dock adapter. For years, CCS tech dominated EVs from everyone but Tesla.  Starting next year, if you drive a non-Tesla EV (from the automakers that have announced they'll make the switch), you'll be able to charge at all Supercharger locations with an adapter. And by 2025, EVs from some automakers won't even need an adaptor.  Here's how to charge up, depending on which EV you have:  Ford 2021 Ford Mustang Mach-E. Tim Levin/Insider Ford was the earliest traditional automaker to team up with Tesla for its charging tech. Current Ford EV owners — those driving a Ford electric vehicle already fitted with a CCS port — will be able to use a Tesla-developed adapter to access Tesla Superchargers starting in the spring. That means that, if you own a Mustang Mach-E or Ford F-150 Lightning, you will need the adapter in order to use a Tesla station come 2024. But Ford will equip its future EVs with the NACS port starting in 2025 — eliminating the need for any adapter. Owners of new Ford EVs will be able to pull into a Supercharger station and juice up, no problem. General Motors Cadillac Lyriq. Cadillac GM will also allow its EV drivers to plug into Tesla stations.