US 5,851,162 AGranted

System and apparatus for a multiple input and dual output electric differential motor transmission device

OwnerDavid Tetherinventor

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Abstract

A multiple input, dual output differential motor transmission device incorporates a sun gear device having first and second sun gears fixedly connected to each other whereby the first and second sun gears rotate together along a common axis of rotation; first and second ring gear devices having first and second ring gears, respectively; and first and second sets of planetary gears. The first set is inter-engaged between the first sun and ring gears, while the second set is inter-engaged between the second sun and ring gears. The first sun and ring gears are concentrically and independently rotatable relative to each other with the first set of planetary gears inter-engaged therebetween. The second sun and ring gears are concentrically and independently rotatable relative to each other with the second set of planetary gears inter-engaged therebetween. Rotation of at least one of the first and second sun gears together, the first ring gear and the second ring gear generates at least one of rotational and revolving movement of a corresponding one of the first and second sets of planetary gears.

Claims14

Dependent claims

A multiple input, dual output differential motor transmission device, comprising:

a sun gear device having first and second sun gears fixedly connected to each other whereby said first and second sun gears rotate together along a common axis of rotation;
first and second ring gear devices having first and second ring gears, respectively;
and
first and second sets of planetary gears, said first set being inter-engaged between said first sun and ring gears and said second set being inter-engaged between said second sun and ring gears, wherein
said first sun and ring gears are concentrically and independently rotatable relative to each other with said first set of planetary gears inter-engaged therebetween, and
said second sun and ring gears are concentrically and independently rotatable relative to each other with said second set of planetary gears inter-engaged therebetween, whereby
rotation of at least one of said first ring gear, said second ring gear, and said first and second sun gear together generates at least one of rotational and revolving movement of a corresponding one of said first and second sets of planetary gears, and further wherein
said sun gear device further includes a sun gear motor operatively connected said first and second sun gears,
each of said ring gear devices includes first and second ring gear motors, respectively, and
each of said first and second sets of planetary gears includes a mounting element on which a corresponding one of said first and second sets is rotatably mounted, whereby revolving movement of at least one of said first and second sets of planetary gears generates rotational movement in a corresponding mounting element.

7 more elements

A multiple input, dual output differential motor transmission system, comprising:

a sun gear device having first and second sun gears, means for fixedly connecting said first and second sun gears to each other along a common axis of rotation, and sun drive means for rotatively driving said first and second sun gears together;
a first ring gear device having a first ring gear and a first ring drive means for rotatively driving said first ring gear;
a second ring gear device having a second ring gear and a second ring drive means for rotatively driving said second ring gear;
a first plurality of planetary pinion gears, including a first mounting element on which each of said first plurality of pinion gears is rotatably mounted;
a second plurality of planetary pinion gears, including a second mounting element on which each of said second plurality of pinion gears is rotatably mounted, wherein
each of said first plurality of pinion gears is inter-engaged between said first sun gear and said first ring gear, said first sun and ring gears being concentrically and independently rotatable relative to each other, and
each of said second plurality of pinion gears is inter-engaged between said second sun gear and said second ring gear, said second sun and ring gears being concentrically and independently rotatable relative to each other;
and
control means for controlling each of said sun drive means, said first ring drive means and said second ring drive means independent of each other, whereby operation of at least one of said sun drive means, said first ring drive means and said second ring drive means at least one of revolvingly drives said first and second pluralities of planetary pinion gears and rotationally drives each of pinion gear in said first and second pluralities of pinion gears.

6 more elements

Dependencies are inferred from the claim text.

Facts

Application: 08/751,982Filed 19 Nov 1996
Granted: 22 Dec 1998
Term ends: Not estimatedThe source records don’t support an estimate.

Classification24 codes

B60K 7/0007
Disposition of motor in, or adjacent to, traction wheel: the motor being electric
B60K 17/046
Transmission unit disposed in on near the vehicle wheel, or between the differential gear unit and the wheel: with planetary gearing having…
B60K 17/16
Characterised by arrangement, location or kind of gearing: of differential gearing
B60L 15/2036
For control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed: electric…