Digital adaptive speed control for vehicles

Details Digital adaptive speed control for vehicles Digital adaptive speed control for vehicles

1974-02-11

1976-04-20

Hubler, Malcolm F.

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

G01S 946

Patent

active

039523012

ABSTRACT:
A sensor, such as a radar, is mounted on a moving vehicle equipped with a speed control system which normally maintains the vehicle speed constant at a pre-set speed in the absence of a preceding vehicle within a safe distance. The sensor detects the presence of a preceding vehicle and measures the distance and closing speed of the controlled vehicle with respect to the preceding vehicle, and generates an adaptive speed signal. The adaptive speed signal modifies the error signal of the speed control system which controls either the throttle or brake to cause the controlled vehicle to match its speed to the speed of the preceding vehicle, and to maintain a safe distance from it, thereby making the adaptive speed signal vanish. The error signal may be modified by the adaptive speed signal either by decreasing the desired speed or by increasing the actual speed. The desired, actual, and adaptive speeds may all be represented by digital numbers.

REFERENCES:
patent: 2461005 (1949-02-01), Southworth
patent: 3199104 (1965-08-01), Miller
patent: 3281839 (1966-10-01), Triest et al.
patent: 3399404 (1968-08-01), Githens et al.
patent: 3559756 (1971-02-01), Torres
patent: 3689882 (1972-09-01), Dessailly
patent: 3710383 (1973-01-01), Cherry et al.
patent: 3710385 (1970-09-01), Howard et al.
patent: 3725921 (1973-04-01), Weidman et al.
patent: 3750171 (1973-07-01), Faris
patent: 3820119 (1974-06-01), Casse et al.

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