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Varying Intensity Sudden Stop Brake Light System

IP.com Disclosure Number: IPCOM000004421D
Publication Date: 2000-Nov-09
Document File: 1 page(s) / 14K

Publishing Venue

The IP.com Prior Art Database

Abstract

The present invention is a brake light system in which the intensity of the brake light increases the greater the rate of deceleration of the vehicle.

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Varying Intensity Sudden Stop Brake Light System

The brake lights of a vehicle serve to warn other vehicles that the vehicle is decelerating or is stopped. Conventional brake lights however, fail to indicate the rate of deceleration of a vehicle. As a result, the brake light does not indicate when a vehicle is coming to a sudden stop, which are the cause of many rear end collisions. What is needed is a brake light system that indicates when a vehicle is making a sudden stop or decelerating rapidly.

The present invention is a brake light system in which the intensity of the brake light increases the greater the rate of deceleration of the vehicle.

In Figure 1 a varying intensity sudden stop brake light system is shown. Speedometer 110 contains decelerometer 120 that generates an analog signal that is proportional to the rate of deceleration of the vehicle. Decelerometer 120 transmits signal to amplifier 125, which amplifies signal and transmits signal to A/D converter 130. The analog signal from amplifier 125 is converted by A/D converter 130 to a digital signal and transmitted to program logic device 140. Program logic device 140 sends signal, to D/A converter 150, which converts signal to analog signal that is transmitted to brake light driver 160. Brake light driver 160 sends electric current to brake light 170, which causes brake light 160 to illuminate. The algorithm contained in program logic device 140 is programmed such that the greater the rate of deceleration of the vehicle as measured by speedometer 110, the stronger the signal transmitted by program logic devise 140 and consequently the brighter the intensity of brake light 170.

Figure 1 A varying intensity sudden stop brake light system