Browse Publications Technical Papers 930671
1993-03-01

42LE Electronic Four-Speed Automatic Transaxle 930671

A new electronically controlled transaxle has been put into production for Chrysler's family of LH cars. Among the attributes of this new transaxle are its ability to handle engines of high torque and high power coupled with high-speed shifts. Engine torque management is used in specific operating regimes. A feature of the transaxle is electronic modulation of the converter clutch. A number of logic features have been combined with hardware to provide good performance and shift quality over a wide operating range.
An output transfer chain and a hypoid gear set are used to provide torque to the front wheels in a longitudinal power train orientation. Obtaining acceptable endurance life of the hypoid gears within an aluminum housing presented a significant challenge. New approaches were required to provide a chain-sprocket system with acceptable noise characteristics.
Simultaneous engineering conducted with the transmission, casting, axle and torque converter plants and with major tooling suppliers throughout the design and development process was key to a very successful launch.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Preview Document Add to Cart
Members save up to 16% off list price.
Login to see discount.
Special Offer: Download multiple Technical Papers each year? TechSelect is a cost-effective subscription option to select and download 12-100 full-text Technical Papers per year. Find more information here.
We also recommend:
TECHNICAL PAPER

General Motors All New Electronic Transverse FWD Automatic Transaxle (4T80-E)

930669

View Details

TECHNICAL PAPER

General Motors 4T65-E Electronic Four-Speed Automatic Transaxle

980821

View Details

TECHNICAL PAPER

Chrysler 45RFE: A New Generation Real-Time Electronic Control RWD Automatic Transmission

1999-01-0755

View Details

X