POWER SPLIT HYBRID TRANSMISSION HAVING SYNCHRONIZED DISCONNECT SHIFT ELEMENT
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United States of America
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Issued Date -
Feb 6, 2025
app pub date -
Jul 31, 2023
filing date -
Jul 31, 2023
priority date (Note) -
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Abstract
A power split hybrid transmission for a vehicle includes an internal combustion engine (ICE), a first electric motor, a second electric motor, a disconnect element and a controller. The ICE drives an output shaft that is rotatably coupled to a planetary carrier of a planetary gear set. The first electric motor is rotatably coupled to a sun gear of the planetary gear set and provides a first rotatable input to a transmission output shaft. The second electric motor is rotatably coupled to a counter gear that provides a second rotatable input to the transmission output shaft. The disconnect element selectively disconnects rotatable motion from the transmission output shaft to drive wheels. The controller determines whether the ICE, the first electric motor and the second electric motor are disconnected from the drive wheels and commands torque to the first and second electric motors to cooperatively rotate the transmission output shaft.
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