Transmission with a common actuator for two clutches

摘要

A clutch assembly for a transmission, including: first and second clutches; and an actuation assembly including an actuator for engaging the first and second clutches. The first clutch is arranged to be connected to a planet carrier for a planetary gear set for the transmission so that the planet carrier and a first portion of the first clutch rotate in unison. The first clutch is arranged to be connected to an output shaft for the transmission so that a second portion of the first clutch and the output shaft rotate in unison. The second clutch is arranged to be connected to a ring gear for the planetary gear set so that the ring gear and a portion of the second clutch rotate in unison.

主权项

1. A clutch assembly for a transmission, comprising:
first and second clutches; and, an actuation assembly including:
an actuator; and,at least one spring, wherein:
the first clutch is arranged to be connected to a planet carrier for a planetary gear set for the transmission so that the planet carrier and a first portion of the first clutch rotate in unison;the first clutch is arranged to be connected to an output shaft for the transmission so that the first portion of the first clutch and the output shaft rotate in unison;the first clutch is arranged to be connected to a first input shaft for the transmission so that the first input shaft and a second portion of the first clutch rotate in unison;the second clutch is arranged to be connected to a ring gear for the planetary gear set so that the ring gear and a portion of the second clutch rotate in unison;when the second clutch is closed:
rotation of the ring gear is blocked; and,when a second input shaft for the transmission, connected to the planetary gear set, rotates, the planet carrier and the first portion also rotate; and,for a power failure of the actuator, the at least one spring is arranged to close the first clutch.