The following schematic diagrams reflect various methods of illustrating automotive transmission arrangements. These have been developed to facilitate a clear understanding of the functional interrelations of the gearing, clutches, hydrodynamic drive unit, and other transmission components.
Two variations of transmission diagrams are used: in neutral (clutches not applied), and in gear. For illustrative purposes, some typical transmissions are shown.
Rationale
This document has been updated for improved clarification and inclusion of the latest seven-, eight-, nine-, and ten-speed transmission schematics.
The Automatic Transmission and Transaxle Standards Committee reports to the Powertrain Systems Group of the Motor Vehicle Council. The Committee is responsible for developing and maintaining SAE Standards, Recommended Practices, and Information Reports related to all systems, subsystems, and components of automatic transmissions, including both step ration and CVT designs. This committee will direct its attention to passenger cars and light trucks. Participants in the SAE Automatic Transmission Transaxle Standards Committee include OEMs, suppliers, consulting firms, government, and other interested parties.
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Automatic Transmissions - Schematic Diagrams
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Automatic Transmissions - Schematic Diagrams
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