Self-cancelling apparatus for vehicle turn indicators

Details Self-cancelling apparatus for vehicle turn indicators Self-cancelling apparatus for vehicle turn indicators

1980-08-07

1982-06-01

Caldwell, Sr., John W.

Communications: electrical

Selective

Having indication or alarm

200 6131, 307 10LS, 315 81, 340 62, 340 73, B60Q 140, H01H 316

Patent

active

043330711

ABSTRACT:
An electrical translation circuit for detecting the initiation and termination of a turn or change in direction of a motorcycle, automobile, boat or other like vehicle and the cancellation of the turn indicator for that vehicle. Sensors detect relative steering angle, distance and velocity of the vehicle processing same to cancel a manually operated turn indicator. The detected change in steering angle is coupled with processed signals indicative of appropriate forward movement of the vehicle. The combined signals initiate a cancellation signal which will terminate the vehicle turn indicator signal. The vehicle turn indicator signal will not be reset until there has been an appropriate retracement of the steering angle coupled with appropriate forward movement of the vehicle thereby precluding inadvertent reset signals arising from lane changes or vehicle stoppage during the turning operation.

REFERENCES:
patent: 2147630 (1939-02-01), Metcalf
patent: 2343778 (1944-03-01), Leonard
patent: 3316533 (1967-04-01), Kell
patent: 3555506 (1971-01-01), Daws
patent: 3562799 (1971-02-01), Creager et al.
patent: 3876976 (1975-04-01), Cross, Jr.
patent: 4058797 (1977-11-01), Sekiguchi et al.
patent: 4128770 (1978-12-01), Okazaki

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