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Electric motor driven vehicle and power unit thereof

  • US 5,101,924 A
  • Filed: 07/13/1990
  • Issued: 04/07/1992
  • Est. Priority Date: 07/13/1989
  • Status: Expired due to Term
First Claim
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1. A drive system for an electric motor driven vehicle comprising:

  • an electric motor;

    a driving wheel; and

    a belt type stepless speed change transmission for transmitting the rotation of said electric motor to said driving wheel to run the vehicle;

    said belt type stepless speed change transmission functions as torque reducing means for maintaining motor speed within a range preselected to be within a desired percentage of maximum motor efficiency.

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