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Electric hybrid four-wheel drive vehicle

  • US 20020045507A1
  • Filed: 09/26/2001
  • Published: 04/18/2002
  • Est. Priority Date: 08/22/2000
  • Status: Active Grant
First Claim
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1. A continuously variable transmission comprising:

  • a first planetary gear set;

    a second planetary gear set operably coupled to said first planetary gear set;

    an input shaft rotatably coupled to each of said first and second planetary gear sets for selectively providing a drive torque;

    an output shaft rotatably coupled to said second planetary gear set;

    a first electric motor operably coupled to said first planetary gear set for selectively functioning to one of either rotatably drive said first planetary gear set and retard rotation of said first planetary gear set; and

    a second electric motor operably coupled to said second planetary gear set for selectively functioning to one of either rotatably drive said second planetary gear set and retard rotation of said second planetary gear set;

    wherein said first and second electric motors function to selectively manipulate rotation of said first and second planetary gear sets for varying a drive ratio between said input shaft and said output shaft.

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