Automatic transmission

Details Automatic transmission Automatic transmission

1991-04-02

1992-08-25

Lorence, Richard

Machine element or mechanism

Rotary member or shaft indexing, e.g., tool or work turret

Preselected indexed position

3644241, B60K 4110

Patent

active

051408716

ABSTRACT:
An apparatus and method for synchronizing shifting of a main transmission and a subtransmission, particularly in automatic transmissions having more than four speed ranges. Synchronism is achieved by initiating the shifting of the main transmission when the speeds of the input and output shafts of the main transmission achieve a predetermined relationship.

REFERENCES:
patent: 4324156 (1982-04-01), Iwanaga et al.
patent: 4690017 (1987-09-01), Taniguchi et al.
patent: 4693143 (1987-09-01), Harada et al.
patent: 4708032 (1987-11-01), Harada et al.
patent: 4722247 (1988-02-01), Shindo et al.
patent: 4771386 (1988-09-01), Yasue et al.
patent: 4776240 (1988-10-01), Miki
patent: 4789937 (1988-12-01), Yasue et al.
patent: 4945482 (1990-07-01), Nishikawa et al.
patent: 4984483 (1991-01-01), Hiramatsu et al.
patent: 5014576 (1991-05-01), Yamaguchi

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