Method for controlling shifting parameters in an automatic trans

Details Method for controlling shifting parameters in an automatic trans Method for controlling shifting parameters in an automatic trans

1992-07-14

1993-11-16

Braun, Leslie A.

Machine element or mechanism

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

Preselected indexed position

74858, 3644241, F16H 5936, B60K 4106

Patent

active

052612961

ABSTRACT:
The specification discloses a method for controlling shifting parameters of an automatic transmission having a planetary gear arrangement including a sun gear, planet gears and a ring gear, where the mechanical linkage of any two of these components represents a mechanical gear ratio. To obtain exact control of shifting, the speed variations of the sun gear are measured and these measured values are used for precise determination of the coupling point or of the duration of shifting and/or for engine management.

REFERENCES:
patent: 4360092 (1982-11-01), Muller et al.
patent: 4370903 (1983-02-01), Stroh et al.
patent: 4724723 (1988-02-01), Lockhart et al.
patent: 4933851 (1990-06-01), Ito et al.
patent: 5046383 (1991-09-01), Butts et al.
patent: 5094125 (1992-03-01), Bota
patent: 5129286 (1992-07-01), Nitz et al.
patent: 5133227 (1992-07-01), Iwatsuki

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