# US 10,870,385 B2 · Vehicle headlight system comprising a master control apparatus and a slave control apparatus wherein the slave control apparatus is designed to execute an application software for the purpose of actuating a headlight system component > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,870,385 B2 - Document ID: US10870385B2 - Status: Granted - Kind: B2 - Application number: 16/152,598 - Filed: 2018-10-05 - Published: 2019-01-31 - Granted: 2020-12-22 - Earliest claimed: 2016-04-06 - Assignees: Bayerische Motoren Werke Aktiengesellschaft - Applicants: Bayerische Motoren Werke Aktiengesellschaft - Inventors: Viktor Rack; Mario Werkstetter; Thomas Trumpp - Web page: https://patentgrep.com/patent/US10870385B2 ## CPC - B60Q 1/04: the devices being headlights - H05B 45/52: in a parallel array of LEDs - B60Q 1/0094: {Arrangement of electronic circuits separated from the light source, e.g. mounting of housings for starter circuits for discharge lamps (arrangements being part of the light source holder F21V17/06, F21S43/195)} - B60Q 1/1407: {General lighting circuits comprising dimming circuits} - H05B 47/18: via data-bus transmission - B60Q 2300/05: Special features for controlling or switching of the light beam - B60Q: ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL - H05B: ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL ## Abstract A lighting device has a master control apparatus and at least one slave control apparatus connected to the master control apparatus via a bus system. The slave control apparatus is designed to execute application software for actuating a headlight system component. The master control apparatus is designed to upload the application software onto the slave control apparatus and/or to actuate and/or diagnose the slave control apparatus. ## Claims ### Claim 1 A lighting device of a vehicle, comprising: a master control apparatus; a slave control apparatus connected to the master control apparatus via a bus system; and a headlight system component including a processor and a plurality of interfaces, the plurality of interfaces including supply interfaces for supplying voltage to the headlight system component, bus connections for communicating via the bus system, a plurality of sensor interfaces connected to sensors and a plurality of thermistor interfaces connected to thermistors; wherein the slave control apparatus is designed to execute an application software for the purpose of actuating the headlight system component; and wherein the master control apparatus is designed to: install the application software on the slave control apparatus, and at least one of actuate and diagnose the slave control apparatus. ### Claim 2 (depends on 1) The lighting device as claimed in claim 1, further comprising a headlight housing, wherein the slave control apparatus and the headlight system component are arranged in the headlight housing and the master control apparatus is arranged outside the headlight housing. ### Claim 3 (depends on 2) The lighting device as claimed in claim 2, wherein the slave control apparatus is designed to execute the application software for actuating an LED vehicle headlight. ### Claim 4 (depends on 2) The lighting device as claimed in claim 2, wherein the slave control apparatus is designed to execute the application software for actuating a laser vehicle headlight. ### Claim 5 (depends on 2) The lighting device as claimed in claim 2, wherein the slave control apparatus is designed to execute the application software for actuating a matrix vehicle headlight. ### Claim 6 (depends on 2) The lighting device as claimed in claim 2, wherein the master control apparatus is a front headlight master control apparatus or a rear light master control apparatus. ### Claim 7 (depends on 2) The lighting device as claimed in claim 2, wherein the master control apparatus is designed to overwrite a flash memory of a BIOS of the slave control apparatus with a firmware in order to install the application software on the slave control apparatus. ### Claim 8 (depends on 2) The lighting device as claimed in claim 2, wherein the master control apparatus is designed to carry out an error diagnosis of the slave control apparatus. ### Claim 9 (depends on 2) The lighting device as claimed in claim 2, further comprising a plurality of slave control apparatuses, wherein the master control apparatus is designed to: install the application software on the plurality of slave control apparatuses in a parallel manner, and at least one of actuate and diagnose the plurality of slave control apparatuses in a parallel manner. ### Claim 10 (depends on 2) The lighting device as claimed in claim 2, wherein the master control apparatus is designed to communicate with an external diagnostic apparatus. ### Claim 11 (depends on 1) The lighting device as claimed in claim 1, wherein the slave control apparatus is designed to execute the application software for actuating an LED vehicle headlight. ### Claim 12 (depends on 1) The lighting device as claimed in claim 1, wherein the slave control apparatus is designed to execute the application software for actuating a laser vehicle headlight. ### Claim 13 (depends on 1) The lighting device as claimed in claim 1, wherein the slave control apparatus is designed to execute any desired application software for actuating any desired headlight system component. ### Claim 14 (depends on 1) The lighting device as claimed in claim 1, wherein the slave control apparatus is designed to execute the application software for actuating a matrix vehicle headlight. ### Claim 15 (depends on 1) The lighting device as claimed in claim 1, wherein the master control apparatus is a front headlight master control apparatus or a rear light master control apparatus. ### Claim 16 (depends on 1) The lighting device as claimed in claim 1, wherein the master control apparatus is designed to overwrite a flash memory of a BIOS of the slave control apparatus with a firmware in order to install the application software on the slave control apparatus. ### Claim 17 (depends on 1) The lighting device as claimed in one claim 1, wherein the master control apparatus is designed to carry out an error diagnosis of the slave control apparatus. ### Claim 18 (depends on 1) The lighting device as claimed in claim 1, further comprising a plurality of slave control apparatuses, wherein the master control apparatus is designed to: install the application software on the plurality of slave control apparatuses in a parallel manner, and at least one of actuate and diagnose the plurality of slave control apparatuses in a parallel manner. ### Claim 19 (depends on 1) The lighting device as claimed in claim 1, wherein the master control apparatus is designed to communicate with an external diagnostic apparatus.