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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

UK electric motor maker YASA expands production 50-fold for EVs

LONDON — British electric motor manufacturer YASA said on Thursday it was increasing its production capacity from 2,000 to 100,000 units with a new factory to tap into growing demand from carmakers for greener technologies. Automakers are racing to build greener vehicles and improve charge times in a bid to meet rising customer demand and air quality targets but Britain lacks sufficient manufacturing capacity, an area the government is building up. Last year, the government picked a site in central England to house a new automotive battery development facility, which will develop the processes required to manufacture the latest battery advancements. On Thursday, YASA, based near the English city of Oxford, said it had raised another 15 million pounds ($21 million) as part of its expansion. "Our customers are looking to adopt innovative new technologies such as YASA's axial-flux electric motors and controllers in order to meet the needs of the rapidly expanding hybrid and pure electric automotive market," said Chief Executive Chris Harris. The firm exports 80 percent of production and has worked with companies including Britain's two biggest carmakers Jaguar Land Rover and Nissan as well as Aston Martin. JLR will decide this year whether to build electric cars in its home market, previously citing factors such as pilot testing and support from science and government as pre-requisites. Reporting by Costas PitasRelated Video:

Nissan transforms NV200 into part-e-Van [w/video]

Following its earlier BBQ van conversion, Nissan is demonstrating once again the flexibility of its NV200 van by rolling out this mobile party on wheels. Based on the battery-powered e-NV200, the "part e-Van" packs an array of upgrades to give it everything you'd need to turn any parking lot into a club. It's got a DJ booth on the roof, a 1,400-watt sound system, wireless headphones for silent-disco capability, a solar-powered disco ball that feeds juice back into the system, an alcohol-free bar dispenser, an LED dance floor, and a 20-foot-tall light-up canopy. There's even a drone that can deploy to capture the party scene, and a monitor hooked up online to share it all via social media. The party wagon is set to debut outside the Olympiastadion in Berlin for the UEFA Champions League final (that's a soccer game for those of us unfamiliar), and will then hit the road on tour – with its next stop scheduled for the 24 Hours of Le Mans. This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings. Party On! Nissan turns 100% Electric e-NV200 into the ultimate part e-VAN - Vehicle unveiled ahead of the UEFA Champions League Final - Zero Emission vehicle will be displayed outside The Olympiastadion ahead of kick-off - One-off vehicle's key features include a disco ball solar array which feeds power to some of the van's elements - Watch the PART e-VAN in full swing here: https://youtu.be/gdTew0hZ_Rs Nissan has transformed its all-electric e-NV200 into the ultimate party on wheels. The vehicle - called the PART e-VAN and powered by the 100% electric e-NV200 - will charge into Berlin for its inaugural reveal tomorrow night ahead of Saturday's UEFA Champions League Final, before exciting fans outside The Olympiastadion prior to kick-off. Some of the unique van's standout attributes include a dazzling disco ball solar panel array on the roof which absorbs daylight to power some of this one-off vehicle's features, an augmented reality system where users will be able to jump into their own party scene before sharing it with friends on social media and a custom-made sound system capable of throwing the best silent disco party.