US Patent 9855889 Brake light system for vehicles

Systems, apparatus, and methods for operating brake lights on moving vehicles. A sensor transduces level or state of current braking of the vehicle. The transduced level or state of braking is converted into an instruction to produce a display of luminance at the brake lights which is proportional to the level or state of current braking to allow viewers to react accordingly. In one example, brake fluid pressure in the braking system is measured to transduce level or state of braking. Preset thresholds of brake fluid pressure are correlated to plural braking levels or states. Luminance at the brake light is expanded or contracted in real time with the changing of braking levels or states.