A light control system based on a car light group

Abstract

The application relates to a light control system based on a car light group, in particular to the technical field of car light control, which comprises an acquisition module used for acquiring a control signal of a car; an electronic driving module used for converting and analyzing the control signal of the car and controlling each light group, wherein the electronic driving module comprises a judging unit used for judging the type of the control signal of the car; a signal conversion unit used for performing signal conversion according to the type of the control signal; a signal analysis unit used for analyzing the light group number controlled by a digital signal and rewriting the digital signal; a voltage rising and falling unit used for controlling the voltage required for starting the car light; an LED driving unit used for analyzing the light group number; a control unit used for controlling the brightness and running state of the car light; and a limping mode detection unit used for detecting the running mode of the car. The application realizes the control of multiple light groups by one electronic driving module, saves the cost and improves the control efficiency of the multiple light groups.

Description

Technical Field

[0001] This invention relates to the field of automotive lighting control technology, and more particularly to a lighting control system based on automotive lamps. Background Technology

[0002] Currently, the automotive industry is developing towards a trend of increasingly more external lights in vehicle design. New models typically have 3-4 lights on the front, which requires more electronic drive modules, longer wiring harnesses, higher static current, and consequently higher manufacturing costs.

[0003] Chinese Patent Publication No. CN112105131A discloses a lighting control circuit and a lighting control system. The lighting control circuit includes a power enable module, a pulse signal generation module, and a switch logic module. The power enable module is electrically connected to a power source and provides a starting voltage to the pulse signal generation module when the vehicle is detected to be in limp mode. The pulse signal generation module is electrically connected to the power enable module and generates a first pulse signal based on the starting voltage, outputting the first pulse signal to the switch logic module. The switch logic module is electrically connected to both the pulse signal generation module and an external lamp switch, and transmits the first pulse signal to the corresponding enable signal port of the target lamp based on the switch signal generated by the external lamp switch, thereby enabling the target lamp to operate. Using the lighting control circuit and system disclosed in this application can improve vehicle safety in limp mode. However, this solution only addresses the lighting control circuit and does not achieve a solution where multiple lights are driven by a single drive module. Summary of the Invention

[0004] Therefore, the present invention provides a lighting control system based on automotive lighting groups to overcome the problem of the limited number of vehicle lights controlled by the drive module in the prior art.

[0005] To achieve the above objectives, the present invention provides a lighting control system based on automotive lighting units, comprising:

[0006] The acquisition module is used to acquire the vehicle's control signals;

[0007] An electronic drive module is used to convert and analyze the vehicle control signals acquired by the acquisition module and control each light group. The electronic drive module is connected to the acquisition module.

[0008] The electronic drive module includes:

[0009] The judgment unit is used to determine the type of vehicle control signal acquired by the acquisition module, wherein the control signal type includes headlight status control signal and headlight brightness control signal;

[0010] The signal conversion unit is used to convert the control signal into a digital signal and a pulse signal according to the type of the control signal. The signal conversion unit is connected to the judgment unit.

[0011] The signal analysis unit is used to analyze the composition of the digital signal to determine the type of vehicle light controlled by the digital signal. The signal analysis unit is also used to rewrite the digital signal according to the type of vehicle light to control vehicle lights that are dependent on that type of vehicle light. The signal analysis unit is connected to the signal conversion unit.

[0012] A voltage boosting unit is used to control the voltage required to start the vehicle lights according to the lamp group number determined by the signal analysis unit. The voltage boosting unit is connected to the signal analysis unit.

[0013] The LED driver unit is used to analyze the composition of the pulse signal to determine the lamp group number controlled by the pulse signal, so as to determine the type of vehicle lamp controlled by the pulse signal. The LED driver unit is connected to the signal conversion unit.

[0014] The control unit is used to control the brightness and operating status of the vehicle lights. The control unit is connected to the signal analysis unit and the LED driver unit.

[0015] The limp mode detection unit is used to determine the vehicle's operating mode based on the type of external power supply, and to send a limp mode control signal according to the vehicle's operating mode. The limp mode detection unit is connected to the control unit.

[0016] Furthermore, when the signal conversion unit performs signal conversion on the vehicle's control signals, it converts the vehicle's control signals according to the control signal type determined by the judgment unit, wherein:

[0017] When the judgment unit determines that the control signal type is a vehicle light status control signal, the signal conversion unit converts the vehicle light status control signal into a digital signal;

[0018] When the judgment unit determines that the control signal type is a headlight brightness control signal, the signal conversion unit converts the headlight brightness control signal into a pulse signal.

[0019] Furthermore, the digital signal converted by the signal conversion unit is an 8-bit binary sequence, where 1 represents the headlights on signal and 0 represents the headlights off signal. The digital signal, from left to right, represents the control mode of the left turn signal, right turn signal, high beam headlight, low beam headlight, fog light, cornering lights, daytime running lights, and side marker lights.

[0020] Furthermore, the pulse signal converted by the signal conversion unit is a square wave with a frequency of 4Hz. 1 represents an increase in brightness, 0 represents a maintenance of brightness, and -1 represents a decrease in brightness. Within one cycle, the signal controls the brightness of the high beam, low beam, daytime running lights, and side marker lights from left to right.

[0021] Furthermore, when analyzing the digital signal, the signal analysis unit determines the number of the lamp group controlled by the digital signal based on the composition of the digital signal, wherein:

[0022] When the first two bits of the digital signal contain an enable signal, the signal analysis unit determines that the digital signal controls the first lamp group.

[0023] When an enable signal is present in the middle four bits of the digital signal, the signal analysis unit determines that the digital signal controls the second lamp group.

[0024] When the last two digits of the digital signal contain an enable signal, the signal analysis unit determines that the digital signal controls the third lamp group.

[0025] Furthermore, when rewriting the digital signal, the signal analysis unit rewrites the portion of the digital signal that controls the third lamp group, based on the composition of the digital signal, wherein:

[0026] When the third and fourth bits of the digital signal contain an on signal, the signal analysis unit determines that the indicator light is on and rewrites the last bit of the digital signal to be on.

[0027] When the fifth bit of the digital signal is an on signal, the signal analysis unit determines that the daytime running lights and side marker lights are on, and rewrites the last two bits of the digital signal as on.

[0028] When the third and fourth bits of the digital signal are off, the signal analysis unit determines that the daytime running lights are on and rewrites the seventh bit of the digital signal to be on.

[0029] Furthermore, when controlling the voltage required to start the vehicle lights, the voltage boosting unit controls the lights according to the lamp group number determined by the signal analysis unit, wherein:

[0030] When the lamp group is numbered as lamp group one, the voltage boosting unit is set to voltage level V1;

[0031] When the lamp group is numbered as lamp group two, the voltage boosting unit is set to voltage level V2;

[0032] When the lamp group is numbered as lamp group three, the voltage boosting unit is set to a voltage of V3;

[0033] Wherein, V1 is the first preset voltage, V2 is the second preset voltage, V3 is the third preset voltage, and V1 < V2 < V3.

[0034] Furthermore, when determining the lamp group number controlled by the pulse signal, the LED driving unit determines the lamp group number based on the composition of the pulse signal, wherein:

[0035] When the first two rectangular wave signals within one cycle of the pulse signal contain signals that increase brightness and signals that decrease brightness, the LED driving unit determines that the pulse signal controls the second lamp group.

[0036] When the last two rectangular wave signals within one cycle of the pulse signal contain signals that increase brightness and signals that decrease brightness, the LED driving unit determines that the pulse signal controls the third lamp group.

[0037] Furthermore, when controlling the vehicle lights, the control unit performs control based on the lamp group number determined by the signal analysis unit and the LED driver unit, combined with the control signal type, wherein:

[0038] When the signal analysis unit sends the lamp group number to the control unit, the control unit combines the digital signal to control the operating status of the corresponding vehicle lamp;

[0039] When the LED driver unit sends the lamp group number to the control unit, the control unit controls the brightness of the corresponding vehicle lamp in conjunction with the pulse signal.

[0040] Furthermore, when detecting the vehicle's operating mode, the limp mode detection unit determines the operating mode based on the external power supply type and adjusts the headlight status accordingly, wherein:

[0041] When the external power source is a battery, the limp mode detection unit determines that the vehicle is in normal mode and does not send a limp mode control signal.

[0042] When the external power source is engine power, the limp mode detection unit determines that the vehicle is in limp mode and sends a limp mode control signal to the control unit.

[0043] Compared with existing technologies, the beneficial effects of this invention are as follows: By receiving control signals from the vehicle through an acquisition module, the vehicle control signals are received uniformly, thereby improving the acquisition efficiency of vehicle control signals; by judging the type of vehicle control signals through a judgment unit, the control method for the headlights is determined, thereby improving the analysis efficiency of headlight control signals; by converting the headlight status control signals through a signal conversion unit, the signal type is unified, thereby improving the recognition efficiency of headlight status control signals; by analyzing the headlight status control signals through a signal analysis unit, the required headlight group number is accurately identified, thereby improving the accuracy of headlight control; by controlling the output voltage through a voltage boosting unit, the normal working environment of the headlights is ensured, thereby improving the stability of headlight use; by recognizing the headlight brightness control signal through an LED driving unit, the headlight brightness is controlled, helping the driver quickly assess the surrounding environment and improving driving safety; by controlling the operating status of the headlights through a control unit, the normal operation of the headlights is ensured, thereby improving system stability; and by detecting the system operating status through a limp mode detection unit, the limp mode is identified, further controlling the vehicle lights to improve driving safety. Attached Figure Description

[0044] Figure 1 This is a schematic diagram of the lighting control system based on automotive lighting units in this embodiment. Detailed Implementation

[0045] To make the objectives and advantages of the present invention clearer, the present invention will be further described below with reference to embodiments; it should be understood that the specific embodiments described herein are merely for explaining the present invention and are not intended to limit the present invention.

[0046] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0047] Furthermore, it should be noted that, in the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0048] Please see Figure 1 As shown, this is a lighting control system based on automotive lighting units according to this embodiment, including:

[0049] The acquisition module is used to acquire the vehicle's control signals, including LIN signals and wake-up signals issued by the body controller, frequency control signals, ADB signals, and CAN signals issued by the ADB controller, etc.

[0050] An electronic drive module is used to convert and analyze the vehicle control signals acquired by the acquisition module and control each light group. The electronic drive module is connected to the acquisition module.

[0051] Please continue reading. Figure 1 As shown, the electronic drive module includes:

[0052] The judgment unit is used to determine the type of vehicle control signal acquired by the acquisition module, wherein the control signal type includes headlight status control signal and headlight brightness control signal;

[0053] The signal conversion unit is used to convert the control signal into a digital signal and a pulse signal according to the type of the control signal. The signal conversion unit is connected to the judgment unit.

[0054] The signal analysis unit is used to analyze the composition of the digital signal to determine the type of vehicle light controlled by the digital signal. The signal analysis unit is also used to rewrite the digital signal according to the type of vehicle light to control the vehicle lights that are dependent on that type of vehicle light. The number of the light group includes light group one, light group two and light group three, wherein light group one includes left turn signal and right turn signal, light group two includes high beam, low beam, fog light and cornering light, and light group three includes daytime running light and side marker light. The signal analysis unit is connected to the signal conversion unit.

[0055] A voltage boosting unit is used to control the voltage required to start the vehicle lights according to the lamp group number determined by the signal analysis unit. The voltage boosting unit is connected to the signal analysis unit.

[0056] The LED driver unit is used to analyze the composition of the pulse signal to determine the lamp group number controlled by the pulse signal, so as to determine the type of vehicle lamp controlled by the pulse signal. The LED driver unit is connected to the signal conversion unit.

[0057] The control unit is used to control the brightness and operating status of the vehicle lights. The control unit is connected to the signal analysis unit and the LED driver unit.

[0058] The limp mode detection unit is used to determine the vehicle operating mode based on the external power supply type and to send a limp mode control signal according to the vehicle operating mode. The limp mode detection unit is connected to the control unit. In this embodiment, the external power supply type includes battery power supply and engine power supply.

[0059] Specifically, in this embodiment, the acquisition module receives control signals from the vehicle, thereby unifying the reception of vehicle control signals and improving the acquisition efficiency of vehicle control signals. The judgment unit determines the type of vehicle control signal, thereby determining the control method for the headlights, improving the analysis efficiency of headlight control signals. The signal conversion unit converts the headlight status control signals, thereby unifying the signal type and improving the recognition efficiency of headlight status control signals. The signal analysis unit analyzes the headlight status control signals, thereby accurately identifying the headlight group number that needs to be controlled, improving the accuracy of headlight control. The voltage boosting unit controls the output voltage, thereby ensuring the normal working environment of the headlights and improving the stability of headlight use. The LED driver unit identifies the headlight brightness control signal, thereby controlling the headlight brightness to help the driver quickly assess the surrounding environment and improve driving safety. The control unit controls the operating status of the headlights, thereby ensuring normal operation of the headlights and improving system stability. The limp mode detection unit detects the system operating status, thereby identifying limp modes and further controlling the vehicle lights to improve driving safety.

[0060] Specifically, in this embodiment, when the signal conversion unit performs signal conversion on the vehicle's control signal, it converts the vehicle's control signal according to the control signal type determined by the judgment unit, wherein:

[0061] When the judgment unit determines that the control signal type is a vehicle light status control signal, the signal conversion unit converts the vehicle light status control signal into a digital signal;

[0062] When the judgment unit determines that the control signal type is a headlight brightness control signal, the signal conversion unit converts the headlight brightness control signal into a pulse signal.

[0063] Specifically, in this embodiment, the digital signal converted by the signal conversion unit is an 8-bit binary sequence, where 1 represents the signal to turn on the vehicle lights and 0 represents the signal to turn off the vehicle lights. The digital signal, from left to right, represents the control mode of the left turn signal, right turn signal, high beam headlights, low beam headlights, fog lights, cornering lights, daytime running lights, and side marker lights.

[0064] Specifically, the signal conversion unit can be further explained in conjunction with actual situations. For example, when the received headlight status control signal is to turn on the left turn signal, the digital signal converted by the signal conversion unit is 10000000; when the received headlight status control signal is to turn on the high beam headlights, the digital signal converted by the signal conversion unit is 00100000; when the received headlight status control signal is to turn on the fog lights, the digital signal converted by the signal conversion unit is 00001000, etc.

[0065] Specifically, in this embodiment, the pulse signal converted by the signal conversion unit is a square wave with a frequency of 4Hz. 1 represents an increase in brightness, 0 represents a maintenance of brightness, and -1 represents a decrease in brightness. Within one cycle, the signal controls the brightness of the high beam, low beam, daytime running lights, and side marker lights from left to right.

[0066] Specifically, the signal conversion unit can be further explained in conjunction with actual situations. For example, when the received headlight brightness control signal is to increase the brightness of the high beam, the pulse signal converted by the signal conversion unit is 1000; when the received headlight brightness control signal is to decrease the brightness of the low beam, the pulse signal converted by the signal conversion unit is 0-100; and when the received headlight brightness control signal is to increase the brightness of the parking lights, the pulse signal converted by the signal conversion unit is 0001, etc.

[0067] Specifically, in this embodiment, the signal analysis unit, when analyzing digital signals, determines the number of the light group controlled by the digital signals based on the composition of the digital signals, wherein:

[0068] When the first two bits of the digital signal contain an enable signal, the signal analysis unit determines that the digital signal controls the first lamp group.

[0069] When an enable signal is present in the middle four bits of the digital signal, the signal analysis unit determines that the digital signal controls the second lamp group.

[0070] When the last two digits of the digital signal contain an enable signal, the signal analysis unit determines that the digital signal controls the third lamp group.

[0071] Specifically, in this embodiment, when the signal analysis unit rewrites the digital signal, it rewrites the part of the digital signal that controls the third lamp group according to the composition of the digital signal, wherein:

[0072] When the third and fourth bits of the digital signal contain an on signal, the signal analysis unit determines that the indicator light is on and rewrites the last bit of the digital signal to be on.

[0073] When the fifth bit of the digital signal is an on signal, the signal analysis unit determines that the daytime running lights and side marker lights are on, and rewrites the last two bits of the digital signal as on.

[0074] When the third and fourth bits of the digital signal are off, the signal analysis unit determines that the daytime running lights are on and rewrites the seventh bit of the digital signal to be on.

[0075] Specifically, in this embodiment, the voltage boosting unit controls the voltage required to start the vehicle lights according to the lamp group number determined by the signal analysis unit, wherein:

[0076] When the lamp group is numbered as lamp group one, the voltage boosting unit is set to voltage level V1;

[0077] When the lamp group is numbered as lamp group two, the voltage boosting unit is set to voltage level V2;

[0078] When the lamp group is numbered as lamp group three, the voltage boosting unit is set to a voltage of V3;

[0079] Wherein, V1 is the first preset voltage, V2 is the second preset voltage, V3 is the third preset voltage, and V1 < V2 < V3.

[0080] It is understood that this embodiment does not specifically limit the value of the preset voltage. Those skilled in the art can set it freely, as long as it meets the working voltage required by the vehicle lights. The best implementation is V1 = 12V, V2 = 13V, and V3 = 24V.

[0081] Specifically, in this embodiment, when the LED driving unit determines the lamp group number controlled by the pulse signal, it determines the lamp group number based on the composition of the pulse signal, wherein:

[0082] When the first two rectangular wave signals within one cycle of the pulse signal contain a signal that increases brightness or a signal that decreases brightness, the LED driving unit determines that the pulse signal controls the second lamp group.

[0083] When the last two rectangular wave signals within one cycle of the pulse signal contain either an increasing brightness signal or a decreasing brightness signal, the LED driving unit determines that the pulse signal controls the third lamp group.

[0084] Specifically, in this embodiment, when the control unit controls the vehicle lights, it performs control based on the lamp group number determined by the signal analysis unit and the LED driver unit, combined with the control signal type, wherein:

[0085] When the signal analysis unit sends the lamp group number to the control unit, the control unit combines the digital signal to control the operating status of the corresponding vehicle lamp;

[0086] When the LED driver unit sends the lamp group number to the control unit, the control unit controls the brightness of the corresponding vehicle lamp in conjunction with the pulse signal.

[0087] Specifically, the control unit is further explained in conjunction with actual conditions. For example, when the control unit receives the lamp group number as lamp group one and the digital signal 10000010 sent by the signal analysis unit, the control unit controls the left turn signal in lamp group one to be turned on. When the control unit receives the lamp group number as lamp group two and the digital signal 10010001 sent by the signal analysis unit, the control unit controls the low beam headlights in lamp group two to be turned on. When the control unit receives the lamp group number as lamp group two and the pulse signal 1000 sent by the LED driver unit, the control unit controls the high beam headlights in lamp group two to be increased, etc.

[0088] Specifically, in this embodiment, the limp mode detection unit determines the operating mode based on the external power supply type and adjusts the headlight status accordingly when detecting the vehicle's operating mode.

[0089] When the external power source is a battery, the limp mode detection unit determines that the vehicle is in normal mode and does not send a limp mode control signal.

[0090] When the external power source is engine power, the limp mode detection unit determines that the vehicle is in limp mode and sends a limp mode control signal to the control unit.

[0091] Specifically, in this embodiment, when the limp mode detection module determines that the vehicle is in limp mode, it only needs to send a signal to turn on the low beam headlights and side marker lights to ensure that the vehicle can safely drive to the repair shop. The limp mode control signal is a fixed digital signal 00010001.

[0092] The technical solution of the present invention has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the scope of protection of the present invention.

Claims

1. A lighting control system based on automotive lighting units, characterized in that, include: The acquisition module is used to acquire the vehicle's control signals; An electronic drive module is used to convert and analyze the vehicle control signals acquired by the acquisition module and control each light group. The electronic drive module is connected to the acquisition module. The electronic drive module includes: The judgment unit is used to determine the type of vehicle control signal acquired by the acquisition module, wherein the control signal type includes headlight status control signal and headlight brightness control signal; The signal conversion unit is used to convert the control signal into a digital signal and a pulse signal according to the type of the control signal. The signal conversion unit is connected to the judgment unit. The signal analysis unit is used to analyze the composition of the digital signal to determine the type of vehicle light controlled by the digital signal. The signal analysis unit is also used to rewrite the digital signal according to the type of vehicle light to control vehicle lights that are dependent on that type of vehicle light. The signal analysis unit is connected to the signal conversion unit. A voltage boosting unit is used to control the voltage required to start the vehicle lights according to the lamp group number determined by the signal analysis unit. The voltage boosting unit is connected to the signal analysis unit. The LED driver unit is used to analyze the composition of the pulse signal to determine the lamp group number controlled by the pulse signal, so as to determine the type of vehicle lamp controlled by the pulse signal. The LED driver unit is connected to the signal conversion unit. The control unit is used to control the brightness and operating status of the vehicle lights. The control unit is connected to the signal analysis unit and the LED driver unit. The limp mode detection unit is used to determine the vehicle's operating mode based on the type of external power supply, and to send a limp mode control signal according to the vehicle's operating mode. The limp mode detection unit is connected to the control unit. When analyzing digital signals, the signal analysis unit determines the number of the light group controlled by the digital signal based on the composition of the digital signal, wherein: When the first two bits of the digital signal contain an enable signal, the signal analysis unit determines that the digital signal controls the first lamp group. When an enable signal is present in the middle four bits of the digital signal, the signal analysis unit determines that the digital signal controls the second lamp group. When the last two digits of the digital signal contain an enable signal, the signal analysis unit determines that the digital signal controls the third lamp group; When determining the lamp group number controlled by the pulse signal, the LED driving unit determines the lamp group number based on the composition of the pulse signal, wherein: When the first two rectangular wave signals within one cycle of the pulse signal contain signals that increase brightness and signals that decrease brightness, the LED driving unit determines that the pulse signal controls the second lamp group. When the last two rectangular wave signals within one cycle of the pulse signal contain signals that increase brightness and signals that decrease brightness, the LED driving unit determines that the pulse signal controls the third lamp group; When controlling the vehicle lights, the control unit performs control based on the light group number determined by the signal analysis unit and the LED driver unit, combined with the control signal type, wherein: When the signal analysis unit sends the lamp group number to the control unit, the control unit combines the digital signal to control the operating status of the corresponding vehicle lamp; When the LED driver unit sends the lamp group number to the control unit, the control unit controls the brightness of the corresponding vehicle lamp in conjunction with the pulse signal; When detecting the vehicle's operating mode, the limp mode detection unit determines the operating mode based on the external power supply type and adjusts the headlight status accordingly. When the external power source is a battery, the limp mode detection unit determines that the vehicle is in normal mode and does not send a limp mode control signal. When the external power source is engine power, the limp mode detection unit determines that the vehicle is in limp mode and sends a limp mode control signal to the control unit.

2. The lighting control system based on automotive lighting units according to claim 1, characterized in that... When the signal conversion unit performs signal conversion on the vehicle's control signals, it converts the vehicle's control signals according to the control signal type determined by the judgment unit, wherein: When the judgment unit determines that the control signal type is a vehicle light status control signal, the signal conversion unit converts the vehicle light status control signal into a digital signal; When the judgment unit determines that the control signal type is a headlight brightness control signal, the signal conversion unit converts the headlight brightness control signal into a pulse signal.

3. The lighting control system based on automotive lighting units according to claim 2, characterized in that... The digital signal converted by the signal conversion unit is an 8-bit binary sequence, where 1 represents the signal to turn on the vehicle lights and 0 represents the signal to turn off the vehicle lights. The digital signal from left to right represents the control mode of the left turn signal, right turn signal, high beam headlights, low beam headlights, fog lights, cornering lights, daytime running lights, and side marker lights.

4. The lighting control system based on automotive lighting units according to claim 2, characterized in that... The pulse signal converted by the signal conversion unit is a square wave with a frequency of 4Hz. 1 represents an increase in brightness, 0 represents a maintenance of brightness, and -1 represents a decrease in brightness. Within one cycle, the signal controls the brightness of the high beam, low beam, daytime running lights, and side marker lights from left to right.

5. The lighting control system based on automotive lighting units according to claim 1, characterized in that... When rewriting the digital signal, the signal analysis unit rewrites the part of the digital signal that controls the third lamp group, based on the composition of the digital signal, wherein: When the third and fourth bits of the digital signal contain an on signal, the signal analysis unit determines that the indicator light is on and rewrites the last bit of the digital signal to be on. When the fifth bit of the digital signal is an on signal, the signal analysis unit determines that the daytime running lights and side marker lights are on, and rewrites the last two bits of the digital signal as on. When the third and fourth bits of the digital signal are off, the signal analysis unit determines that the daytime running lights are on and rewrites the seventh bit of the digital signal to be on.

6. The lighting control system based on automotive lighting units according to claim 5, characterized in that... When controlling the voltage required to start the vehicle lights, the voltage boosting unit controls the lights according to the lamp group number determined by the signal analysis unit, wherein: When the lamp group is numbered as lamp group one, the voltage boosting unit is set to voltage level V1; When the lamp group is numbered as lamp group two, the voltage boosting unit is set to voltage level V2; When the lamp group is numbered as lamp group three, the voltage boosting unit is set to a voltage of V3; Wherein, V1 is the first preset voltage, V2 is the second preset voltage, V3 is the third preset voltage, and V1 < V2 < V3.

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