Friction based variable transmissions, in the form of belts and cones, have been in existence for many years. One successful new version, based around ball bearings and shaped steel surfaces, is the NuVinci drive. However, all friction based transmissions suffer from mechanical inefficiency and limited power capability.
Construction zones are rarely regarded in a positive light, and for good reasons:
• Commuters languish in construction zones when roads need renovation or find finding alternate routes in an effort to avoid losing precious time to traffic jams.
• Local retail business suffer,
The problem with variable drive systems are that they tend to have a scrubbing effect, at any given speed the friction drive area is one to one in the center of contact but either over drives on one side and under drives on the other. This causes heat,
"Digitally Timed Gas Mileage" is my invention for today's interesting car culture. It will tell you how much time (hours,min,sec) is left until you have to refuel your car. This will replace the empty/full gauge with a digital clock, showing how much time is left.
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