Vehicle control speed sensing method

Details Vehicle control speed sensing method Vehicle control speed sensing method

1976-07-21

1979-11-20

Butler, Douglas C.

Motor vehicles

Miscellaneous

73519, 340 52D, B60K 3100

Patent

active

041747658

ABSTRACT:
A method of and apparatus for controlling the operation of a vehicle by electrical signals generated in a manner dependent on the road speed of the vehicle wherein the method comprises setting up a specific magnetic field in association with a normally unmagnetized component of the vehicle which rotates at a speed proportional to the road speed of the veicle and sensing variations in the magnetic field in a coil located on the opposite side of a ferromagnetic member of the vehicle to the component and amplifying the signal through a high gain amplifier.

REFERENCES:
patent: 3002384 (1961-10-01), MacDonald
patent: 3049110 (1962-08-01), Kerr
patent: 3224271 (1965-12-01), Ichihara
patent: 3406775 (1968-10-01), Magnuski
patent: 3619680 (1971-11-01), Okamoto
patent: 3647017 (1972-03-01), Brainard

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