My project PWM DRL for the car.
The device is intended for automatic inclusion of a dipped beam at a start of motion of the car and power regulation on lamps of a dipped beam depending on a movement mode.
Increases traffic safety and prolongs a resource of lamps.
Algorithm of operation.
In a start of motion, at reaching by the car of speed of 6 km/h the device smoothly includes lamps of a dipped beam to 55 % from power of an onboard network. In a range of speeds 70... 95 km/h power are installed on 75 %, and at speeds above 95 km/h of 95 % from power of an onboard network.
After a stop of the car for the period of more than 15 seconds the power decreases to 25 %. At renewal of movement the power is again installed according to the above described algorithm.
At inclusion by the driver of a dipped beam by the regular switch the power is installed 100 %.
After turn off of ignition of a lamp some more seconds shine, and then die away.
The device works only with sensors of speed with 6 impulses on metre.
Excuse for my very bad English. It is operation of the online translator.