Integral mechanical and electrical vehicle speed sensor

Details Integral mechanical and electrical vehicle speed sensor Integral mechanical and electrical vehicle speed sensor

1979-11-23

1982-02-16

Strecker, Gerard R.

Electricity: measuring and testing

Electrical speed measuring

Including speed-related frequency generator

G01P 348, G01P 354

Patent

active

043161448

ABSTRACT:
To provide an electrical vehicle speed signal as well as a traditional speedometer cable drive, a sleeve member for mounting in a port of the transmission housing and a driven gear on a shaft journaled in the sleeve member are modified by providing a magnet on the gear for rotation therewith, an annular sensing coil around the sleeve member and a U-shaped polepiece linked through the coil and extending into magnetic coupling relationship with the magnet so that electrical pulses are induced in the coil upon gear rotation.

REFERENCES:
patent: 3458741 (1969-07-01), Woodward
patent: 3710158 (1973-01-01), Bachle et al.
patent: 3710246 (1973-01-01), Herring
patent: 4074157 (1978-02-01), Lace

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