Automatic light sensors Adrian Skowron #6

The cars become more futuristic everyday as well as they become more users friendly. Extra features are added to help the driver with basic functions like remembering to turn on/off headlights. It is a modern convenience in many of today's cars. They eliminate the need for the driver to manually switch the headlamps in certain driving situations. While we have that function, the driver is still able to turn that off and control the lamps himself.  It is a handy option because as it gets darker outside or even in the early mornings some people just forget about the head lights for the visibility. With the automatic function the driver doesn’t have to worry about that any more.

​            How the Automatic Headlamps works?

The automatic headlamps are activated through a photoelectric sensor which is embedded into the instrument panel. The sensor is located at the base of the windshield under the defogger grill. The sensitivity of the sensor is either set by the auto manufacturer or the driver. The sensor is activated by the lighting conditions at dawn or dusk. The lights may switch off up to five minutes after the engine has been turned off.

Fig [1]

Switch Controls

As I said before, the driver has the ability to turn off the functions of the automatic headlamps by operating the light switch. If the driver turns off this function and leaves the lights on, the car will notify you by a constant beeping sound so that the driver can turn them off and avoid the battery to be drained. [2]

Fig [3]

[3] http://www.parkers.co.uk/cars/advice/finding/2015/february/the-a-z-guide-to-headlights/

[2] https://www.quora.com/How-do-automatic-headlights-work

[1] http://www.nissanusa.com/buildyournissan/vehicle-images/2016/JKE/XGC60NIS122C0/dd19068cc0841f3571bcb75e2838bddd/JUKE/SL/Automatic-headlights/Exterior