×

Two-mode, compound-split, electro-mechanical vehicular transmission

  • US 5,558,589 A
  • Filed: 07/20/1995
  • Issued: 09/24/1996
  • Est. Priority Date: 07/20/1995
  • Status: Expired due to Term
First Claim
Patent Images

1. An electro-mechanical transmission, comprising:

  • input means for receiving power from an engine;

    power output means;

    first and second motor/generators;

    energy storage means for accepting power from, and supplying power to, said first and second motor/generators;

    control means for regulating power flow between said energy storage means and said motor/generators as well as between said first and second motor/generators;

    a compound planetary gear set having first and second planetary gear sub-sets;

    each of said planetary gear sub-sets having an inner gear member and an outer gear member, each of which meshingly engage a plurality of planet gear members;

    means operatively to connect said first motor/generator to at least one of said gear members in said compound planetary gear set;

    means operatively to connect said second motor/generator to at least one of the other of said gear members in said compound planetary gear set;

    means operatively to connect said input means to at least one of the remaining gear members in said compound planetary gear set; and

    ,means operatively to connect at least one of said gear members in said compound planetary gear set to said power output means.

View all claims
  • 14 Assignments
Timeline View
Assignment View
    ×
    ×