Detection system at a vehicle, to register the presence/absence of a motor cycle in the vicinity, has an infra red marking assembly with a driver circuit and a detector to register the motor cycle and movement behavior

摘要

The vehicle system to detect the presence or absence of another vehicle in its vicinity, especially a motor cycle with an illuminated headlamp, has an infra red marking assembly (11-13) and a detector (17) to register movement. A driver circuit (16) allows the infra red marking to emit light in a pattern according to the register at the detector.