2014 Nissan Rogue Sv on 2040-cars

Auto blog

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 NV200 Chicago Taxi looking for a #HailYes

Nissan may be loaning out its small van to General Motors for its Chicago Auto Show debut, but that doesn't mean that Chevrolet is the only one with new NV200-based wares to share. On the heels of launching its Taxi Of Tomorrow for New York City, the Japanese automaker is giving America's Second City a livery of its own.
Shown here in a green and white paint scheme that "expresses a modern take on a historically popular Chicago taxi color," this NV200 Chicago Taxi is the company's less-than-subtle bid to capture some of the city's cab business, which is estimated to have about 7,000 units in service. Nissan is urging the public to generate discussion on social media and hopefully capture local taxi fleet operators' attention with a #HailYes campaign.
Beyond its unique appearance, this NV200 appears untouched, which means it's still powered by a 2.0-liter four-cylinder engine backed by a version of Nissan's ubiquitous XTronic continuously variable transmission.

Renault-Nissan promises 10 autonomous models through 2020

Renault-Nissan boss Carlos Ghosn promised back in 2013 to have autonomous technology on the road by 2020, and now the automaker has pledged to have more than 10 models ready in that time with varying levels of autonomous capabilities. The company claims it will offer these systems to customers around the world at affordable prices in major markets like the US, Europe, Japan, and China. Renault-Nissan will introduce driverless tech in multiple phases over the next four years. The first step will come later this year with the introduction of a single-lane autonomous system that will be able to go down the highway and manage stop-and-go traffic automatically. The next innovation in 2018 will offer multi-lane capability, and the ability to automatically pass other vehicles on the road. Another big jump will come in 2020 with the ability for models to navigate intersections and urban areas without a driver's control. Renault and Nissan engineers will develop all of this together, and the results will be available in both of the company's brands. Ghosn explained this roadmap towards an autonomous future last year but cautioned that Renault-Nissan didn't plan to take complete control away from owners. Instead, the company sees these systems as a way to make people even safer behind the wheel by reducing the chance for driver error. The automaker's deliberate introduction strategy is prudent because it can potentially adapt to proposed regulations that could mandate rules on how piloted vehicles operate. RENAULT-NISSAN TO LAUNCH MORE THAN 10 VEHICLES WITH AUTONOMOUS DRIVE TECHNOLOGY OVER THE NEXT FOUR YEARS World's fourth largest car group confirms autonomous drive and connectivity timeline through 2020 Fatal and serious injuries have been significantly reduced; new technologies will help make cars even safer Car group hires new executive to oversee connectivity and connected car services globally SUNNYVALE, Calif. – The Renault-Nissan Alliance will launch more than 10 vehicles with autonomous drive technology in the next four years. The global car group confirmed today that it will launch a range of vehicles with autonomous capabilities in the United States, Europe, Japan and China through 2020. The technology will be installed on mainstream, mass-market cars at affordable prices. In addition, Renault-Nissan will launch a suite of new connectivity applications that will make it easier for people to stay connected to work, entertainment and social networks.