Abstract: A sequential brake light system for road vehicles has a brake light array of plural lights in a linear, concentric or radial series. A master and slave controllers are connected to the array for lighting the lights in sequence and repeatedly at a rate that is proportional to a deceleration of the vehicle upon braking. A speed sensor senses the instantaneous vehicle speed and deactivates the master controller if the speed is below a threshold value so that the array is not powered in stop-and-go traffic. A brake position sensor senses a position of the vehicle brake pedal and an accelerometer measures deceleration of the vehicle, so that the master controller receives signals corresponding to the instantaneous speed of the vehicle, a signal corresponding to the position of the brake pedal and a signal corresponding to the deceleration of the road vehicle for properly warning a trailing drive of the braking condition of the road vehicle.

Abstract: A sequential brake light system for road vehicles has a brake light array of plural lights in a linear, concentric or radial series. A master and slave controllers are connected to the array for lighting the lights in sequence and repeatedly at a rate that is proportional to a deceleration of the vehicle upon braking. A speed sensor senses the instantaneous vehicle speed and deactivates the master controller if the speed is below a threshold value so that the array is not powered in stop-and-go traffic. A brake position sensor senses a position of the vehicle brake pedal and an accelerometer measures deceleration of the vehicle, so that the master controller receives signals corresponding to the instantaneous speed of the vehicle, a signal corresponding to the position of the brake pedal and a signal corresponding to the deceleration of the road vehicle for properly warning a trailing drive of the braking condition of the road vehicle.