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Basic Continuously Variable Transmission explained with Legos

In recent years, the search for better fuel efficiency and smoother shifting has produced automatic transmissions with double-digit gears. Alternatively, the same quest has boosted the popularity and usage of a different type of automatic transmission without any fixed gears, the continuously variable transmission, or CVT. YouTuber Sariel's Lego Workshop recently took the time to build a CVT demonstration model out of Legos to help explain how they work. Sariel begins by showing the model's input and output shafts that are parallel to each other. Each shaft has a cone attached to it, and they are inversely placed so that the large part of one cone is next to the small part of the other cone. The two cones are connected using a rounded rubber band.  By shifting the rubber band up and down the cones, the machine changes the effective ratio between the cones. So, a 1:4 ratio can be smoothly transitioned to 4:1. No clutch is required to operate the mechanism, and it eliminates hitches or pauses between gear changes. CVTs are also advantageous over 9- or 10-speed automatics in that they are far less complex and weigh less.  To demonstrate how the CVT operates in a vehicle, Sariel used a joke about Top Gear. The original Top Gear is represented by a faster-moving car that has the rubber band around the large part of the cone on the input shaft. Top Gear without former hosts Richard Hammond, Jeremy Clarkson, and James May is represented by a slow-moving car with the rubber band around the large part of the cone on the output shaft.  For an even more detailed explanation of how CVTs work — albeit one that doesn't involve toys — you can click here. Technology Toys/Games Nissan Subaru

Nissan and BMW want the UK to stay in the EU

Nissan and BMW are saying that the Brexit shouldn't become reality. It's a mixture of hope and threat because their planned investments in the UK risk to be damaged by the referendum's result. While those brands are still saying that every decision from the UK's people will be respected, you can sense a fear that every plan is going to be messed up. The problem is simple according to Nissan CEO Carlos Ghosn: "For us, a position of stability is more positive than a collection of unknowns. It makes the most sense for jobs, trade and costs." For sure Nissan is not going to shut its plant in northeast England if the country exits the Union, but this could change plans for the future, as the so-called Brexit could cause an increase on costs and above all on competition. Nissan employs 8,000 people in the UK across its manufacturing, engineering, and design facilities, and a further 32,000 indirectly through dealerships and its supply chain. All these people produce almost half a million cars and 80 percent of those are exported, so just imagine how taxes could affect prices and sales. If the EU's borders get smaller, Nissan will face some problems with customs duties the foreign products struggle with, as other Japanese automakers have so far, while importing their cars into the Union. Nissan is not the only maker interested in the outcome of the referendum to be held June 23; BMW is of the same mood, hoping Brexit won't become reality. The Germans already warn Mini and Rolls-Royce employees that the exit of UK from the Union could cause problems with increasing costs and higher prices due to tariff barriers. BMW CEO Harald Krueger at the Geneva auto show said "a UK vote to exit the European Union would cloud the future of the automaker's UK brands, which include Mini, along with Rolls-Royce". What's happening in this case is not only an English issue. In fact, although every decision taken by the UK's people must be respected, the automakers are right when saying they hope it is not going to happen, as you hope no one changes the cards during the game. Image Credit: Nissan Government/Legal BMW Nissan brexit open road

Ford Mustang chief engineer, mid-engine Corvette | Autoblog Podcast #488

Note: There were some technical difficulties that prevented some of you from downloading this week's podcast. The player and link below should be working now, and the file has reached iTunes and other feeds as well. Thanks to everyone who wrote in to let us know of the issues! On the podcast this week, we have some questions for Ford Chief Engineer Carl Widman. Plus, Associate Editor Reese Counts joins Mike Austin to talk about the latest news, most notably the spy photos of the upcoming mid-engine Corvette. We also chat about the Jaguar F-Type Coupe, the Nissan Armada, and why 0-60 mph is a stupid performance figure. And, of course, we get into some Spend My Money advice, telling strangers what car to buy. And new this week is a cost-no-object what-cars-would-you-buy game. The rundown is below. And don't forget to send us your questions, money-spend or otherwise, to podcast at autoblog dot com. Autoblog Podcast #488 The video meant to be presented here is no longer available. Sorry for the inconvenience. Topics and stories we mention Mid-engine Chevrolet Corvette spied Chevy Bolt EV comes with 238 miles of range Ford will sell self-driving cars by 2025 Jaguar F-Type Coupe 2017 Nissan Armada (yes, Mike knows it's not a Patrol) Ford Mustang Chief Engineer Carl Widman interview Spend My Money - we give purchase advice Why 0–60 mph is a stupid performance test Rundown Intro - 00:00 The news - 03:30 What we've been driving - 16:20 Carl Widman - 26:44 Spend my money - 37:03 New fun game - 51:48 0–60 mph is overrated - 56:50 Total Duration: 1:04:57 Get The Podcast iTunes – Subscribe to the Autoblog Podcast in iTunes RSS – Add the Autoblog Podcast feed to your RSS aggregator MP3 – Download the MP3 directly Feedback Email – Podcast at Autoblog dot com Review the show in iTunes Podcasts Chevrolet Ford Jaguar Nissan Car Buying nissan armada mid-engine corvette jaguar f-type coupe