Patent ID: 8210975
Filing Date: 2012-07-03
Classification: F16H,Y10T

Abstract:
1. An automatic transmission comprising: a valve body including control valves for hydraulically controlling a friction engaging element provided within said transmission, the transmission having an input shaft; an electric control unit located on said valve body for controlling gear shifting of said automatic transmission; a transmission case having a peripheral wall for at least partially enclosing a gear shift mechanism along an outer perimeter of a plurality of rotating members of the gear shift mechanism and an outer wall of the transmission case laterally extending downward from said peripheral wall to cover a top side and a side surface of the valve body; a containing space provided by said peripheral wall, said outer wall and said valve body and located laterally offset from a location immediately beneath said gear shift mechanism; and rotation sensors integrated with the electric control unit for detecting rotation speeds of said plurality of rotating members of said gear shift mechanism, and said rotation sensors of the electric control unit being arranged side by side in an axial direction of the input shaft; wherein said electric control unit is located within said containing space, said peripheral wall is formed between said electric control unit and said gear shift mechanism, and said rotation sensors are disposed in positions directly facing the rotating members.