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US 7,140,461 B2Granted
Power splitting vehicle drive system
AssigneeOshkosh Truck Corporation
InventorJon J. Morrow
Life of this patent
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Abstract
A vehicle includes a prime mover, a first output shaft, a second output shaft and a planetary gear assembly. The planetary gear assembly includes a sun gear, a ring gear and a plurality of planetary gears supported between the ring gear and the sun gear by a carrier. One of the sun gear and the ring gear is coupled to the prime mover. The other of the ring gear and the sun gear is coupled to the first output shaft. The first carrier is coupled to the second output shaft.
Claims75
A vehicle comprising:
- a first prime mover;
- a first output shaft;
- a second output shaft;
- and
- a first planetary gear assembly including:
- a first sun gear;
- a first ring gear;
- and
- a first plurality of planetary gears supported between the first ring gear and the first sun gear by a first carrier, wherein one of the first sun gear and the first ring gear is coupled to the first prime mover, wherein the other of the first ring gear and the first sun gear is coupled to the first output shaft and wherein the first carrier is coupled to the second output shaft;
- a second prime mover;
- a first motor generator;
- and
- a second planetary gear assembly including:
- a second sun gear;
- a second ring gear;
- and
- a second plurality of planetary gears between the second ring gear and the second sun gear and supported by a second carrier, wherein one of the second sun gear and the second ring gear is coupled to the second prime mover, wherein the other of the second ring gear and the second sun gear is coupled to the first motor generator, and wherein the second carrier is coupled to the second output shaft.
14 more elements
A vehicle comprising:
- a first prime mover;
- a first output shaft;
- a second output shaft;
- and
- a first planetary gear assembly including:
- a first sun gear;
- a first ring gear;
- and
- a first plurality of planetary gears supported between the first ring gear and the first sun gear by a first carrier, wherein one of the first sun gear and the first ring gear is coupled to the first prime mover, wherein the other of the first ring gear and the first sun gear is coupled to the first output shaft and wherein the first carrier is coupled to the second output shaft;
- a second prime mover;
- a first motor generator;
- a second planetary gear assembly including:
- a second sun gear;
- a second ring gear;
- and
- a second plurality of planetary gears between the second ring gear and the second sun gear and supported by a second carrier, wherein the carrier is coupled to the second prime mover, wherein the sun gear is coupled to the first motor/generator;
- and
- a first drive train coupled to the second ring gear, the first carrier and the second output shaft.
15 more elements
A drive system comprising:
- a first prime mover;
- a first output shaft;
- a second output shaft;
- and
- a first planetary gear assembly including:
- a first sun gear;
- a first ring gear;
- and
- a first plurality of planetary gears supported between the first ring gear and the first sun gear by a first carrier, wherein one of the first sun gear and the first ring gear is coupled to the first prime mover, wherein the other of the first ring gear and the first sun gear is coupled to the first output shaft and wherein the first carrier is coupled to the second output shaft;
- a second prime mover;
- a first motor generator;
- and
- a second planetary gear assembly including:
- a second sun gear;
- a second ring gear;
- and
- a second plurality of planetary gears between the second ring gear and the second sun gear and supported by a second carrier, wherein one of the second sun gear and the second ring gear is coupled to the second prime mover, wherein the other of the second ring gear and the second sun gear is coupled to the first motor generator, and wherein the second carrier is coupled to the second output shaft.
14 more elements
A vehicle comprising:
- an internal combustion engine;
- a first motor/generator;
- a second motor/generator;
- at least one first axle;
- a first output shaft coupled to the at least one first axle;
- at least one second axle;
- a second output shaft coupled to the at least one second axle;
- a first planetary gear assembly including:
- a first sun gear;
- a first ring gear;
- and
- a first plurality of planetary gears supported between the first ring gear and the first sun gear by a first carrier, wherein the first sun gear is coupled to the first motor/generator, wherein one of the first carrier and the first ring gear is coupled to the engine;
- a drive train coupled between the second output shaft and the other of the first carrier and the first ring gear;
- a second planetary gear assembly including:
- a second sun gear;
- a second ring gear;
- and
- a second plurality of planetary gears supported between the second ring gear and the second sun gear by a second carrier, wherein one of the second ring gear and the second sun gear is coupled to the second motor/generator, wherein the other of the second ring gear and the second sun gear is coupled to the first output shaft and wherein the second carrier is coupled to the second output shaft.
15 more elements
Dependencies are inferred from the claim text.