METHOD FOR OPERATING A LIGHTING DEVICE IN A MOTOR VEHICLE

• Main Authors: GRIMM STEV, WAGNER CHRISTIAN, VOGL THOMAS, MEKKER KATRIN
• Format: Patent
• Language: Chinese; English
• Published: 18.12.2020
• Subjects: ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY

The invention relates to a method for operating a lighting device in a motor vehicle. The lighting device comprises a number of illumination units (4, 5) which each generate coloured light with a plurality of colour channels (KR, KG, KB), wherein the number of illumination units (4, 5) can be controlled by means of a control unit (1) in which an illumination state (BZ) to be adjusted of a respective illumination unit (4, 5) is indicated by colour component values (AR, AG, AB) of the respective colour channels (KR, KG, KB) and a brightness value (H) valid for all colour channels (KR, KG, KB), wherein, during normal operation, the control unit (1) calculates a colour value (FR, FB, FG) from the illumination state (BZ) to be adjusted for each colour channel (KR, KG, KB), based on the colour component value (AR, AG, AB) of the respective colour channel (KR, KG, KB) and the brightness value (H), and supplies it to the respective illumination unit (4, 5). The control unit (1) processes a brightness threshold value