Power transmission system for hybrid electric vehicle
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United States of America Patent
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Jul 17, 2018
Grant Date -
Jan 25, 2018
app pub date -
Nov 17, 2016
filing date -
Jul 21, 2016
priority date (Note) -
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Abstract
A power transmission system for a hybrid electric vehicle may include an engine, a planetary gear set, and first and second motor/generators, and transmit rotational power of the engine and rotational power of the second motor/generator to a final reduction gear including a differential through independent paths, respectively, in which a sun gear is directly connected with the first motor/generator through a first motor shaft and selectively connectable with a transmission housing, a planet carrier is directly connected with an input shaft and connected with the transmission housing with a one-way clutch and a torque limiter positioned therebetween, a ring gear is directly connected with a first output gear and connected with a final reduction gear through a first intermediate shaft, and the second motor/generator is directly connected with a second output gear through a second motor shaft and connected with the final reduction gear through a second intermediate shaft.
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