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Electric drive system with differential steering

  • US 20040069542A1
  • Filed: 10/11/2002
  • Published: 04/15/2004
  • Est. Priority Date: 10/11/2002
  • Status: Active Grant
First Claim
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1. An electric drive system;

  • comprising;

    a first output member;

    a second output member;

    an electric motor including an output shaft having an axis of rotation, the output shaft operatively engaged with the first and second output members to rotate the first and second output members;

    a differential steering system disposed between the electric motor and the first and second output members, the differential steering system including at least one planetary gear assembly having an axis of rotation that substantially aligns with the axis of rotation of the output shaft; and

    a steering motor operatively engaged with the at least one planetary gear assembly and operable to modify the rotational speed of the at least one planetary gear assembly to thereby adjust the rotational speed of one of the first and second output members relative to the other of the first and second output members.

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