Method and circuit configuration for gear detection in a motor v

Details Method and circuit configuration for gear detection in a motor v Method and circuit configuration for gear detection in a motor v

1997-07-31

1999-07-13

Jeffery, John A.

Machine element or mechanism

Gearing

Interchangeably locked

477906, 701 61, 701 64, F16H 5900

Patent

active

059211350

ABSTRACT:
A method and a circuit configuration for gear detection in a motor vehicle transmission detect a signal corresponding to an input rpm and a signal corresponding to an output rpm of the transmission. A quotient of the output rpm to the input rpm is formed. A gear that has been engaged is detected from this quotient and from a known gear ratio of the transmission. A variation over time of the ratio of the output rpm to the input rpm of the transmission is ascertained and compared with a limit value. If the limit value is exceeded, a determination is made that no gear has been engaged.

REFERENCES:
patent: 4680988 (1987-07-01), Mori
patent: 4701852 (1987-10-01), Ulveland
patent: 5239895 (1993-08-01), Kroger
patent: 5682315 (1997-10-01), Coutant et al.

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