Patent ID: 6351211
Filing Date: 2002-02-26
Classification: B60Q

Abstract:
A braking force warning system for use in a vehicle comprising:a braking force sensor for sensing braking force of the vehicle, the braking force sensor providing a braking force signal indicating the rate of braking force of the vehicle; a processor circuit connected to receive the braking force signal, the processor circuit providing a digital signal having a frequency varying in response to the braking force signal; and an illumination device connected to receive the digital signal and provide a visual indication of the rate of deceleration of the motor vehicle, the illumination device illuminating at the frequency of the digital signal, wherein the processor dims or brightens the light provided by the illumination device in response to signals indicating proximity, weather, night time, fog or rain, and wherein the illumination device is dimmed in response to detection of a trailing vehicle in close proximity as determined by the proximity signal.