NEW DRIVE TRAIN PROMISES UP TO 50% MPG GAIN

Vadetec Corp., a small Troy (MI) company that originated in France, has invented a new continuously variable transmission (CVT) and inertial drive line that promises almost unbelievable fuel economy gains of 20% to 50%. Vehicle deceleration energy is used by Vadetec to build up the speed of the freewheeling inertial flywheel to as much as 5,000 rpm. During deceleration and idle, the engine's microprocessor cuts off the fuel to the engine, achieving the greatly-desired objectives of eliminating both fuel consumption and emissions during these driving modes. As the flywheel eventually slows to a stop at idle, the engine senses this and turns on the fuel, causing the engine to resume normal operation. The cycle continually repeates itself. With this system, the accelerator is connected to the microprocessor rather than to the engine throttle. Thus, the microproessor senses power demand, as well as speeds of the engine, flywheel and propeller shaft, and it can set the throttle opening, vary the transmission ratio, control the clutch and shut off the engine whenever these various sensors dictate it. The Vadetec unit is a traction-drive system. A mechanical efficiency of 92% is claimed.

  • Availability:
  • Corporate Authors:

    Automotive Industries International

    Chilton Way
    Radnor, PA  USA  19089
  • Authors:
    • CALLAHAN, J M
  • Publication Date: 1979-6

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Filing Info

  • Accession Number: 00314832
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Files: TRIS
  • Created Date: Jul 22 1980 12:00AM