Shift initiation detection system for automatic automotive trans

Details Shift initiation detection system for automatic automotive trans Shift initiation detection system for automatic automotive trans

1989-07-03

1991-10-29

Herrmann, Allan D.

Machine element or mechanism

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

Preselected indexed position

3644241, B60K 4106

Patent

active

050605410

ABSTRACT:
For a predetermined period following the issuance of a shift command signal, the output of a engine speed signal is temporarily ignored. Upon the expiration of the predetermined time, the engine speed is sampled and if the rate of change thereof is above a given value, the initiation of the shift operation is deemed to have occurred.

REFERENCES:
patent: 4266447 (1981-05-01), Heess et al.
patent: 4551802 (1985-11-01), Smyth
patent: 4559599 (1985-12-01), Habu et al.
patent: 4680988 (1987-07-01), Mori
patent: 4744031 (1988-05-01), Takeda et al.
patent: 4793216 (1988-12-01), Hiramatsu et al.
patent: 4800781 (1989-01-01), Yasue et al.
Service Manual (Publication A261C07), Nissan Motor Co., Ltd., Mar. 1987.

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