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Subaru updates EyeSight system with color-detecting cameras

Subaru is giving its EyeSight driver assistance camera system a major upgrade for the 2015 model year with new color cameras, as well as reducing its size by 15 percent over the rather bulky original system.
Subaru locates its EyeSight hardware inside the vehicle at the top of the windshield, which is unlike most other camera-based systems that have their hardware mounted somewhere in the front fascia. The benefit is that these rather expensive components are protected from any detritus that may hit the car, but the original system's size ate up a chunk of the driver's outward view. Thus, the shrinkage should be appreciated by new owners.
The upgraded stereo cameras have a 40-percent longer and wider detection range than the original system's cameras, and their ability to see color allows the system to recognize brake lights at a speed differential of 30 miles per hour, instead of 19 mph before. And as before, EyeSight continues to offer adaptive cruise control, lane departure warning and pre-collision breaking that can slow the car automatically if an imminent accident is detected, even bringing the vehicle to a complete stop.

Subaru WRX hatchback mule spotted

Despite on-again, off-again rumors, this latest set of spy shots seems to indicate that yes, a five-door Subaru WRX is indeed in the works. Subtlety is key with this test mule, but there are clear bits of evidence that indicate a hotter hatchback is what's being developed here.
First, notice the WRX-spec front fascia grafted onto this ordinary-looking Impreza hatch. From there, we can clearly see the tiny bit of added width - most obvious on the roof and at the rear, near the fuel door and taillamps. And of course, let's not forget about that bulge in the hood, consisting of a metal panel that covers the hood scoop and can apparently be removed thanks to a series of screws, according to our spies. The WRX's more robust exhaust and larger wheel/tire package have not been added to this mule, though we're told that this is commonplace for Subaru prototypes - those bits should be added on as the car's development progresses.
We fully expect a WRX hatchback to be, well, just that - mechanically, it should be identical to the sedan brethren, though our spies indicate that Subaru could be testing an updated version of the WRX-spec boxer engine. Of course, there's always a chance that this could be something else entirely, given the on-and-off reports of the five-door 'Rex's existence in the first place...

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