New Hampshire inventor Dale Van Cor recently presented his latest invention, the symbiotic drive, to   the Electrical Energy Storage and Application Conference in San Francisco.

The drive runs both gas and electric motors to produce continuously variable output, a process the inventor calls "torque amplification." Many of the designs are similar to continuously variable transmissions (CVTs) used by such vehicles as the Toyota Prius, Ford Five Hundred/Mercury Montego (4WD), and the Nissan Murano. Because the drive uses electric motors, it resembles the Prius closely, though, according to Van Cor, the symbiotic drive would always be engaged unlike the Prius engine which switches to gasoline depending on driving conditions.

More detailed information of the drive can be found at inventor's website.

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