Two-mode, compound-split, electro-mechanical vehicular transmission
First Claim
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.
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Accused Products
Abstract
A two-mode, compound-split, electro-mechanical transmission utilizing an input for receiving power from an engine. A power output is also utilized to deliver power to the drive wheels of the vehicle. First and second motor/generators are used in conjunction with an energy storage device for accepting power from, and supplying power to, the first and second motor/generators. A control mechanism regulates power flow among the energy storage device and the motor/generators as well as between the first and second motor/generators. A compound planetary gear set having first and second planetary gear sub-sets is incorporated in the transmission. Each of the planetary gear sub-sets has an inner gear member and an outer gear member, each of which meshingly engages a plurality of planet gear members. Mechanical arrangements are utilized operatively to connect: (1) the first motor/generator to at least one of the gear members in the compound planetary gear set; (2) the second motor/generator to at least one of the other of the gear members in the compound planetary gear set; (3) the input to at least one of the remaining gear members in the compound planetary gear set; and, (4) at least one of the gear members in the compound planetary gear set to the power output.
203 Citations
16 Claims
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1. An electro-mechanical transmission, comprising:
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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 Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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Specification