Trailer sway-control and braking system

Details Trailer sway-control and braking system Trailer sway-control and braking system

1978-10-30

1981-03-10

Miller, J. D.

Fluid-pressure and analogous brake systems

Electric control

188112A, 200 6152, 303 7, 303 92, B60T 1306

Patent

active

042549981

ABSTRACT:
Apparatus for inhibiting sway and for applying the brakes of a trailer includes a sway sensor connected to a frequency-discriminating circuit which senses lateral oscillatory motion of the trailer and which generates separate right and left acceleration signals in response to right and left acceleration, respectively, of the trailer. A circuit produces a sway-inhibiting signal in response to both of said right and left acceleration signals which successively occur in a time shorter than a predetermined period of time. A braking-signal circuit produces a brake control signal in response to the sway-inhibiting signal, this brake control signal being utilized for applying the trailer brakes momentarily to correct for a sway condition.

REFERENCES:
patent: 1774337 (1930-08-01), Sichel
patent: 3259202 (1966-07-01), Griffeth
patent: 3746132 (1973-07-01), Jewell, Jr.
patent: 3758165 (1973-09-01), Savelli
patent: 3861489 (1975-01-01), Lang et al.
patent: 3944288 (1976-03-01), Bertolasi
patent: 3951464 (1976-04-01), Donahue et al.
patent: 4023863 (1977-05-01), Sisson et al.
patent: 4140352 (1979-02-01), Delpech et al.

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