US 12,454,213 B2
Lighting device for a motor vehicle
Markus Bauer, Munich (DE); and Robert Isele, Fuerstenfeldbruck (DE)
Assigned to Bayerische Motoren Werke Aktiengesellschaft, Munich (DE)
Appl. No. 17/413,660
Filed by Bayerische Motoren Werke Aktiengesellschaft, Munich (DE)
PCT Filed Jan. 21, 2020, PCT No. PCT/EP2020/051383
§ 371(c)(1), (2) Date Jun. 14, 2021,
PCT Pub. No. WO2020/156883, PCT Pub. Date Aug. 6, 2020.
Claims priority of application No. 10 2019 102 124.3 (DE), filed on Jan. 29, 2019.
Prior Publication US 2022/0055530 A1, Feb. 24, 2022
Int. Cl. B60Q 1/32 (2006.01); B60Q 3/80 (2017.01); H05B 45/10 (2020.01); H05B 45/20 (2020.01); H05B 45/325 (2020.01); H05B 47/23 (2020.01)
CPC B60Q 1/32 (2013.01) [B60Q 3/80 (2017.02); H05B 45/10 (2020.01); H05B 45/20 (2020.01); H05B 45/325 (2020.01); H05B 47/235 (2020.01)] 14 Claims
OG exemplary drawing
 
1. A lighting device for a motor vehicle, the lighting device comprising:
an LED unit comprising a first microcontroller and a plurality of LEDs, wherein the first microcontroller and the plurality of LEDs are enclosed by a housing of the LED unit, and the LED unit is configured to emit light having settable brightness and specified color coordinates in an operational state; and
a processing module that is configured to receive and process a signal from a data bus of the motor vehicle, to transmit a data signal, to convert the data signal, which comprises an item of activation information for the LED unit, into a pulse-width-modulated signal of the current supplied to the plurality of LEDs, and to check whether the pulse-width-modulated signal contains an item of information which corresponds to the activation information for the LED unit.