Lighting device and lighting system for a motor vehicle and method for operating a lighting system for a motor vehicle

A lighting system for a motor vehicle, comprising:

• the motor vehicle, and
• at least one lighting apparatus comprising:
• a processing module configured to receive, process and send signals from a data bus of the motor vehicle, and
• a light-emitting diode (LED) unit configured to emit light of adjustable brightness and prescribed color locus, wherein the LED unit has a microcontroller and a plurality of LEDs,
• wherein the microcontroller and the LEDs are surrounded by a package of the LED unit, and
• wherein the LED unit comprises a temperature sensor configured to measure a present temperature value on the LED unit and to communicate bidirectionally with the processing module so that the present temperature value on the LED unit is ascertained by the temperature sensor and the processing module.

A method for operating a lighting system for a motor vehicle, the lighting system comprising lighting apparatus having a processing module configured to receive, process and send signals from a data bus of the motor vehicle, a light-emitting diode (LED) unit configured to emit light of adjustable brightness and prescribed color locus, wherein the LED unit has a microcontroller and a plurality of LEDs, wherein the microcontroller and the LEDs are surrounded by a package of the LED unit, and wherein the LED unit comprises a temperature sensor configured to measure a present temperature value on the LED unit and to communicate bidirectionally with the processing module, the method comprising:

• actuating the temperature sensor by the processing module to ascertain a present temperature value on the LED unit,
• receiving measurement signals of the temperature sensor,
• ascertaining a present temperature value on the LED unit based on the received measurement signals of the temperature sensor, and
• controlling the function of the motor vehicle based on the ascertained temperature value on the LED unit.