Extended width sensor

Details Extended width sensor Extended width sensor

1977-10-11

1979-07-10

Silverstrim, John P.

Motor vehicles

With means for controlling operation responsive to...

Having controlling means adapted to interact with stationary...

318587, 318615, 318681, 330138, 330280, B62D 128

Patent

active

041604881

ABSTRACT:
The effective sensor width of a path following vehicle guidance system is enlarged by having a first gain control amplifier for amplifying the sum of the path sensor signals, a second gain control amplifier for amplifying the difference of the path sensor signals and a third amplifier, in tandem with the second amplifier for amplifying the output of the second amplifier once the second amplifier's output has peaked out. All three amplifiers are gain-controlled by the same negative feedback signal. The outputs of the first and third amplifiers are synchronously detected to provide an error signal for an electromechanical steering servo for the vehicle.

REFERENCES:
patent: 3498403 (1970-03-01), Kohls
patent: 3720281 (1973-03-01), Frownfelter
patent: 3935922 (1976-02-01), Cooper
patent: 4003445 (1977-01-01), DeBruine
patent: 4040500 (1977-08-01), Blakeslee
patent: 4043418 (1977-08-01), Blakeslee

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