Title: Vehicle control speed sensing method

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.

Do you think this is a good invention? Vote now:

Votes so far: For:(0) Against:(0)
Other info:

Inventors: Moshal, John H.
Murray, Alan B.

Application Number: 707342
Filing Date: 1976-07-21
Publication_date: 1979-11-20
Assignee:
Primary Class(es): 180/313 324/174, 340/441
Other Classes:
US Patent Ref:

3002384	Oct, 1961	MacDonald	324/173.
3049110	Aug, 1962	Kerr	180/105.
3224271	Dec, 1965	Ichihara	73/229.
3406775	Oct, 1968	Magnuski	180/105.
3619680	Nov, 1971	Okamoto	324/174.
3647017	Mar, 1972	Brainard	180/105.

Other Refs: 119553212513741288589

Jun, 1970	GB.
Oct, 1971	GB.
Sep, 1972	GB.

Primary Examiner: Butler, Douglas C.
Assistant Examiner: Siemens, Terrance L.
Attorney: