Automatic signalling device for automobiles

摘要

The device automatically activates the emergency light of the vehicle when the brake pedal, at least one other vehicle function such as the headlights or windscreen wipers, and one of the direction indicators are used simultaneously. The integrated circuit of the device provides a periodic pulsing signal on plural outputs to the emergency lights when it receives a continuous signal from the switch of the brake pedal on one input 3, a continuous signal from the other vehicle function on a second input 4, and a pulsed signal from the indicator activation circuit on the third input 5. Thus an indication of turns accompanied by speed reduction which are particularly dangerous on a highway during poor light or bad weather can be automatically generated.