Motor vehicles – Bodies – Footboards and pedal guards
Patent
1974-07-16
1976-02-03
Song, Robert R.
Motor vehicles
Bodies
Footboards and pedal guards
250461, B62D 124
Patent
active
039359220
ABSTRACT:
A vehicle guidance mechanism for guiding a vehicle along a surface by means of an invisible guide line containing fluorescent material comprises an ultraviolet lamp that causes the guide line to fluoresce and emit visible light; photocell sensors mounted in the vehicle and adapted to sense the visible radiation and produce an error output signal proportional to the variation of vehicle position from a predetermined lateral position with respect to the guide line; and a control device in the vehicle adapted to steer the vehicle in response to the error signal so as to cause the vehicle to follow the guide line. An automatic contrast control circuit eliminates the effect of background illumination in the output signal and produces a constant closed loop gain with respect to the signal received from the guide line. Modulation circuitry and appropriate filters further reduce the effects of background illumination and improve the reliability and line detecting ability of the guide system. Line detection circuitry is employed to prevent operation of the automatic control device unless the vehicle is tracking a valid guide line.
REFERENCES:
patent: 2074251 (1937-03-01), Braun
patent: 2331144 (1943-10-01), Sitter
patent: 2520680 (1950-08-01), Hamilton
patent: 2587976 (1952-03-01), Ment
patent: 2996621 (1961-08-01), Barrett
patent: 3030870 (1962-04-01), Gill
patent: 3105954 (1963-10-01), Gill
patent: 3138357 (1964-06-01), Whitwell
patent: 3235024 (1966-02-01), Barrett
patent: 3482644 (1969-12-01), Krieger
patent: 3493920 (1970-02-01), MacMunn
patent: 3498403 (1970-03-01), Kohls
patent: 3628624 (1971-12-01), Wesener
patent: 3642087 (1972-02-01), Sampey
patent: 3644739 (1972-02-01), Wilkinson
patent: 3708668 (1973-01-01), Tilley
patent: 3718821 (1973-02-01), Vischulis
patent: 3727560 (1973-04-01), Blemly et al.
patent: 3739177 (1973-06-01), Ko
patent: 3744586 (1973-06-01), Leinauer
patent: 3800902 (1974-04-01), Keller
patent: 3856104 (1974-12-01), Ohba
patent: 3859517 (1975-01-01), Okuma
Cooper Jack A.
DeBruine Carl
Lear Siegler, Inc.
Schrecengost R.
Song Robert R.
LandOfFree
Vehicle guidance mechanism does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Vehicle guidance mechanism, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Vehicle guidance mechanism will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2118300