US 6,044,719 AGranted

Electro-mechanical automatic transmission having dual input shafts

AssigneeChrysler Corporation

InventorsRichard G. Reed, Jr., Donald L. Carriere

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Abstract

An electro-mechanical automatic transmission is provided including a first input shaft and a second input shaft concentric with the first input shaft. A plurality of drive gears are rotatably mounted to each input shaft and are provided with synchronizer devices for selectively engaging the drive gears to the input shafts. A driver shaft is provided with a plurality of driven gears in meshing engagement with the drive gears. The electro-mechanical automatic transmission is provided with a pair of electro-mechanical clutch actuators for selectively disengaging dual clutches which transmit engine torque to the input shafts, as well as an electro-mechanical shift actuator system which operatively engage the synchronizer devices for selectively engaging the drive gears.

Claims6

Dependent claims

A transmission for use with a vehicle, comprising:

a housing;
first and second drive shafts, said first and second drive shafts supported within said housing, said second drive shaft being concentric with said first drive shaft;
a plurality of drive gears including a reverse gear and first through sixth speed gears, said first drive shaft including first, third, and fifth speed gears which are selectively engaged to said first drive shaft by a first pair of synchronizer devices disposed on said first drive shaft, and said second drive shaft including second, fourth and sixth speed gears which are selectively engaged to said second drive shaft by a second pair of synchronizer devices disposed on said second drive shaft;
and
a driven shaft supported within said housing in parallel to said first and second drive shafts and including a plurality of driven gears fixedly mounted to said driven shaft in meshing engagement with corresponding ones of said drive gears mounted to said first and second drive shafts.

2 more elements

Dependencies are inferred from the claim text.