| 摘要 |
PROBLEM TO BE SOLVED: To provide an automatic transmission device for actualizing the detection of the rotating speed of a turbine while meeting requirements for multiple stages. SOLUTION: The automatic transmission device comprises a first rotation sensor for detecting the rotating speed of a first connection member, a second rotation sensor for detecting the rotating speed of a rotating element of a planetary gear set having a rotating speed different from that of the first connection member, and a rotating speed calculating means for calculating the rotating speed of an input shaft in accordance with the rotating speeds detected by the first rotation sensor and the second rotation sensor. COPYRIGHT: (C)2007,JPO&INPIT
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