A control system, method and vehicle compatible with multiple vehicle lamps

Abstract

The application belongs to the field of vehicle body control, and particularly relates to a control system and method compatible with multiple vehicle lamps and a vehicle. The system comprises a vehicle body controller, an input light switch connected to the vehicle body controller, a chassis controller connected to the vehicle body controller, and vehicle lamps connected to the chassis controller. The vehicle body controller collects signals of the input light switch, confirms the lamp type of the lighting lamp connected to the chassis controller through a calibration item, sends a CAN message to the chassis controller according to the signals of the input light switch and the lamp type in combination with a first corresponding relationship table, the chassis controller receives the CAN message sent by the vehicle body controller, parses the message to obtain the lamp type, obtains the driving pin of the chassis controller according to a second corresponding relationship table, and drives the pin to light up the corresponding lamp. The corresponding pin is defined according to the lamp type in the second corresponding relationship table to drive the corresponding pin to light up the corresponding lamp. The software version number is reduced, and the compatible driving of different types of lighting lamps by one software version is realized.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of vehicle body control, and particularly relates to a control system and method compatible with multiple vehicle lamps and a vehicle. BACKGROUND

[0002] In the field of commercial vehicles, the configuration of vehicle lamps is relatively complex. Due to different functional requirements, commercial vehicles have a wide variety of lamps, including headlamps, turn signals, brake lights, fog lamps, and other types. At the same time, in terms of lamp light sources, there is a phenomenon of mixed use of LED and halogen types. This results in the vehicle body controller facing the key technical problem of how to meet the driving and diagnosis requirements of multiple lamps under the condition of limited output resources in actual work.

[0003] To solve the above technical problems, the current more common technical solution is to redevelop the vehicle body controller to achieve effective driving and diagnosis of multiple lamps by expanding the output resources. However, this solution has obvious disadvantages. On the one hand, redeveloping the vehicle body controller requires a large amount of manpower, material resources and financial resources, resulting in a significant increase in cost; on the other hand, the development process involves complex technical steps and strict testing procedures, which makes the development cycle longer, not only affecting the product's speed to market, but also to some extent limiting the rapid update and iteration of commercial vehicle technology. Therefore, a new technical solution is urgently needed to solve the technical problems of commercial vehicle body controllers in driving and diagnosis of multiple lamps without significantly increasing costs and shortening development cycles. SUMMARY

[0004] The present application solves the problem of compatibility of vehicle body controllers with LED and halogen lighting lamps by writing calibration items, adding lamp type CAN signals, defining different pins, and software compatible with different pin peripheral wiring harnesses. Specifically, a control system, method and vehicle compatible with multiple vehicle lamps are provided.

[0005] In a first aspect, the present application provides a control system compatible with multiple vehicle lamps, comprising a vehicle body controller, wherein the vehicle body controller is connected with an input light switch and a chassis controller, and the chassis controller is connected with vehicle lamps.

[0006] The vehicle body controller stores a first correspondence table and calibration items of lamp types set according to the overall vehicle configuration, wherein the first correspondence table is a correspondence table of vehicle body controller CAN signals and lamp types;

[0007] The chassis controller stores a first correspondence table and a second correspondence table; the second correspondence table is a driving power and light correspondence table of different pins of the chassis controller for different types of lamps;

[0008] The vehicle body controller collects the signal of the input light switch and confirms the lamp type of the lighting lamp connected to the chassis controller through the calibration item, sends the CAN message to the chassis controller according to the signal of the input light switch and the lamp type in combination with the first corresponding relation table, the chassis controller receives the CAN message sent by the vehicle body controller, analyzes the message to obtain the lamp type, obtains the driving pin of the chassis controller according to the second corresponding relation table, and drives the pin to light the corresponding lamp. The corresponding pin is defined according to the lamp type in the second corresponding relation table to drive the corresponding pin to light the corresponding lamp.

[0009] As a preferred technical scheme of the present application, the vehicle body controller is provided with an EEPROM, and the lamp type of the vehicle lighting lamp is written into the EEPROM of the vehicle body controller through the calibration item.

[0010] As a preferred technical scheme of the present application, the input light switch comprises a light knob switch and a light left combination switch connected to the vehicle body controller respectively.

[0011] As a preferred technical scheme of the present application, the light knob switch comprises a low beam switch.

[0012] The light left combination switch comprises a left turn signal, a right turn signal, and a high beam switch.

[0013] The vehicle lamp comprises left and right low beam lamps, left and right auxiliary high beam lamps, left and right front turn signal lamps, left and right side turn signal lamps, and left and right high beam lamps.

[0014] As a preferred technical scheme of the present application, the lamp type of the vehicle lighting lamp comprises an LED lighting lamp, a halogen lighting lamp, and a hybrid lighting lamp.

[0015] As a preferred technical scheme of the present application, the vehicle body controller is responsible for collecting the signals of the light knob switch and the light left combination switch, determining the lamp type through the calibration item in the EEPROM, and sending the CAN message to the chassis controller through the CAN bus according to the switch signal.

[0016] When the chassis controller receives the CAN message sent by the vehicle body controller, the signal name of the lamp type is judged, the enable signal of the driving pin of the chassis controller is obtained through the second corresponding relation table, and the corresponding lamp is driven according to the enable signal.

[0017] As a preferred technical scheme of the present application, the vehicle body controller confirms the lighting lamp connected to the chassis controller as an LED lighting lamp or a halogen lighting lamp or a hybrid lighting lamp through the calibration item in the EEPROM.

[0018] The vehicle body controller sends a CAN message according to the collected switch signal, the lamp type and the first corresponding relation table, the chassis controller receives the CAN message sent by the vehicle body controller, parses the message, obtains the lamp type according to the first corresponding relation table, obtains the pin defined according to the lamp type according to the second corresponding relation table, and drives the pin to light up the corresponding lamp.

[0019] In a second aspect, the present application provides a vehicle lamp control method applied to the system of the first aspect, comprising the following steps:

[0020] The vehicle body controller collects the light switch signal.

[0021] The vehicle body controller confirms the lighting lamp connected to the chassis controller as an LED lighting lamp or a halogen lighting lamp or a hybrid lighting lamp through the calibration item in the EEPROM.

[0022] If the calibration item in the EEPROM is an LED lighting lamp, the vehicle body controller sends a CAN message according to the collected light switch signal in combination with the first corresponding relation table, the lamp type corresponding to the corresponding signal name in the CAN message is an LED headlamp and a lamp state; the chassis controller receives the CAN message sent by the vehicle body controller, parses the CAN message to obtain the lamp type as an LED lighting lamp, and drives the corresponding pin to light up the corresponding LED lighting lamp according to the pin definition of the LED lighting lamp in the second corresponding relation table.

[0023] If the calibration item in the EEPROM is a halogen lighting lamp, the vehicle body controller sends a CAN message according to the collected light switch signal in combination with the first corresponding relation table, the lamp type corresponding to the corresponding signal name in the CAN message is a halogen lighting lamp and a lamp state; the chassis controller receives the CAN message sent by the vehicle body controller, parses the CAN message to obtain the lamp type as a halogen lighting lamp, and drives the corresponding pin to light up the corresponding halogen lighting lamp according to the pin definition of the halogen lighting lamp in the second corresponding relation table.

[0024] If the calibration item in the EEPROM is a hybrid lighting lamp, the vehicle body controller sends a CAN message according to the collected light switch signal in combination with the first corresponding relation table, the lamp type corresponding to the corresponding signal name in the CAN message is a hybrid lighting lamp and a lamp state; the chassis controller receives the CAN message sent by the vehicle body controller, parses the CAN message to obtain the lamp type as a hybrid lighting lamp, and drives the corresponding pin to light up the corresponding hybrid lighting lamp according to the pin definition of the hybrid lighting lamp in the second corresponding relation table.

[0025] As a preferred embodiment of the present application, the method further comprises:

[0026] When the right turn signal switch is open, the body controller collects the calibration item in the EEPROM. If the calibration item is an LED headlamp, the body controller sends a CAN message, in which signal V is filled with LED headlamp and signal IV is filled with the right turn signal switch being open. The chassis controller receives the CAN message sent by the body controller, parses signal V as LED headlamp type, and then drives pin 4 and pin 6 according to the pin definition of the LED headlamp;

[0027] If the calibration item in the EEPROM is a halogen headlamp, the body controller sends a CAN message, in which signal V is filled with halogen headlamp and signal IV is filled with the right turn signal switch being open. The chassis controller receives the CAN message sent by the body controller, parses signal V as halogen headlamp, and then drives pin 5 according to the pin definition of the halogen headlamp;

[0028] If the calibration item in the EEPROM is a hybrid headlamp, the body controller sends a CAN message, in which signal V is filled with hybrid headlamp and signal IV is filled with the right turn signal switch being open. The chassis controller receives the CAN message sent by the body controller, parses signal V as hybrid headlamp, and then drives pin 3 according to the pin definition of the hybrid headlamp.

[0029] In a third aspect, the present application provides a vehicle comprising the control system as described in the first aspect.

[0030] Through the cooperative work of the body controller and the chassis controller, combined with the stored corresponding relationship table and calibration item, the system can accurately control various types of vehicle lamps. This design greatly improves the compatibility of the system, making the same control system adapt to the lamp requirements of different vehicle models and different configurations, reducing the complexity and cost of vehicle production or modification.

[0031] Since the corresponding relationship table stored in the system can be set and adjusted according to the vehicle configuration, the system has high flexibility and scalability. With the continuous development of vehicle lamp technology and the emergence of new lamp types, the system can adapt to these changes by updating the corresponding relationship table and calibration item, without the need for large-scale modification of hardware. The chassis controller selects the correct driving pin and power according to the second corresponding relationship table to light up the lamp, which ensures that the lamp can obtain sufficient lighting effect while minimizing energy consumption. This design helps to improve the energy efficiency of the vehicle and meets the current pursuit of energy saving and emission reduction in the automotive industry.

[0032] The beneficial effects of the technical scheme of the present application are as follows: the present application identifies the lighting lamp type calibration item of the vehicle body controller, identifies the externally driven lighting lamp type, fills the lamp enabling signal with different signal bits according to the different lighting lamp types, and can realize the compatible driving and diagnosis of different types of lighting lamps by one version of software, thereby reducing the number of software versions. BRIEF DESCRIPTION OF DRAWINGS

[0033] In order to more clearly illustrate the technical scheme of the present application, the drawings required to be used in the description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and all other embodiments obtained by those skilled in the art without creative labor based on these drawings also belong to the protection scope of the present application.

[0034] Figure 1 The connection block diagram of the system provided by the embodiment of the present application.

[0035] Figure 2 The schematic flow chart of the method provided by the embodiment of the present application. DETAILED DESCRIPTION

[0036] The system includes a light knob switch, a light left combination switch, a vehicle body controller, a chassis controller, an LED lighting lamp, a halogen lighting lamp and a hybrid lighting lamp. The vehicle body controller is responsible for collecting the light knob switch and light left combination switch signals, and sending the switch information to the chassis controller through the CAN bus. The chassis controller is responsible for driving the lighting lamp. The lighting lamp types include LED lighting lamp, halogen lighting lamp and hybrid lighting lamp. The lighting lamp type is written into the EEPROM of the vehicle body controller according to the vehicle configuration through the calibration item. Since the lighting lamp types are different, the pin definitions of the chassis controller are different, and therefore multiple versions of chassis controller software need to be developed to adapt to multiple pin definitions. The present application identifies the lighting lamp type calibration item of the vehicle body controller, identifies the externally driven lighting lamp type, fills the lamp enabling signal with different signal bits according to the different lighting lamp types, and can realize the compatible driving and diagnosis of different types of lighting lamps by one version of software, thereby reducing the number of software versions. In order to make the purpose, features and advantages of the present application more obvious and easy to understand, the technical scheme in the present application will be described clearly and completely in combination with the drawings in the specific embodiments. Obviously, the following described embodiments are only some embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor also belong to the protection scope of the present application.

[0037] As Figure 1As shown, the embodiment of the present application provides a control system compatible with multiple vehicle lamps, comprising a vehicle body controller, wherein the vehicle body controller is connected with an input light switch and a chassis controller, and the chassis controller is connected with vehicle lamps;

[0038] The vehicle body controller stores a first corresponding relationship table and a calibration item of lamp types set according to the overall vehicle configuration, wherein the first corresponding relationship table is a corresponding relationship table of the vehicle body controller CAN signal and the lamp types;

[0039] The chassis controller stores the first corresponding relationship table and a second corresponding relationship table, wherein the second corresponding relationship table is a driving power and light corresponding relationship table of different pins of the chassis controller for different types of lamps;

[0040] The vehicle body controller collects the signal of the input light switch and confirms the lamp type of the lighting lamp connected with the chassis controller through the calibration item, sends the CAN message to the chassis controller according to the signal of the input light switch and the lamp type in combination with the first corresponding relationship table, the chassis controller receives the CAN message sent by the vehicle body controller, analyzes the message to obtain the lamp type, obtains the driving pin of the chassis controller according to the second corresponding relationship table, and drives the pin to light up the corresponding lamp. According to the pin corresponding to the lamp type in the second corresponding relationship table, the corresponding pin is driven to light up the corresponding lamp.

[0041] The vehicle body controller collects the signal of the input light switch, such as the signal generated by the action of the driver operating the high beam switch, the low beam switch, etc. At the same time, the lamp type of the lighting lamp connected with the chassis controller is confirmed through the calibration item, such as LED lighting lamp, halogen lighting lamp, or hybrid lighting lamp, etc.

[0042] The vehicle body controller generates and sends the CAN message to the chassis controller according to the signal of the input light switch and the confirmed lamp type in combination with the first corresponding relationship table. For example, if the driver turns on the high beam switch, and the current lamp type is LED lighting lamp, the vehicle body controller determines the corresponding CAN signal according to the first corresponding relationship table, and then sends the CAN message containing the signal to the chassis controller. After receiving the CAN message sent by the vehicle body controller, the chassis controller analyzes the message to obtain the lamp type information. Then, the chassis controller obtains the pin capable of driving the corresponding lamp according to the obtained lamp type in combination with the second corresponding relationship table. For example, if the lamp type is LED left high beam, the chassis controller finds pin 1 through the second corresponding relationship table. The chassis controller drives the obtained pin to light up the corresponding lamp. That is, pin 1 is driven to light up the LED left high beam lamp.

[0043] In some embodiments, an EEPROM is arranged in the body controller, and the lamp types of the vehicle lighting lamps are written into the EEPROM of the body controller through calibration items.

[0044] It should be noted that the input light switch includes a light knob switch and a light left combination switch connected with the body controller respectively.

[0045] The light knob switch includes a low beam light switch;

[0046] The light left combination switch includes a left turn signal, a right turn signal, and a high beam light switch;

[0047] The vehicle lamps include left and right low beam lights, left and right auxiliary high beam lights, left and right front turn signals, left and right side turn signals, and left and right high beam lights.

[0048] The lamp types of the vehicle lighting lamps include LED lighting lamps, halogen lighting lamps, and hybrid lighting lamps.

[0049] In the LED lighting lamps, each lamp is of the LED type, and the power of each lamp on one side is less than 20W;

[0050] In the halogen lighting lamps, each lamp is of the halogen type, and the power of each lamp on one side is less than 70W;

[0051] In the hybrid lighting lamps, each lamp is of the LED type or the halogen type, and both types are mixed;

[0052] The chassis controller has 6 driving output pins, and the maximum driving power of a single pin is 90W.

[0053] The body controller is responsible for collecting the light knob switch and the light left combination switch signals; the body controller sends the switch information to the chassis controller through the CAN bus; the chassis controller is responsible for driving the LED headlamp or the halogen headlamp or the hybrid headlamp; when the chassis controller drives the LED headlamp or the halogen headlamp or the hybrid headlamp, the lamps connected to the same pin are different; and the lamp types of the headlamps are written into the EEPROM of the body controller through calibration items.

[0054] When the body controller detects that the knob switch or the left combination switch is closed, it immediately sends a CAN message to the chassis controller. The CAN message sent by the body controller contains a headlamp type signal, and when the calibrated headlamp type in the EEPROM is different, the value of the headlamp type signal is consistent with the type of the installed headlamp. The headlamp type in the EEPROM is derived from the vehicle configuration table.

[0055] When the chassis controller receives the CAN message sent by the body controller, the chassis controller first judges the lamp type signal bit, and then drives the corresponding lamp according to the enable signal. The same kind of lamp driven by the chassis controller has different driving output pins if the lamp types are different.

[0056] In some embodiments, the body controller is responsible for collecting the light knob switch and light left combination switch signals, determining the lamp type through the calibration item in the EEPROM, and sending the CAN message to the chassis controller through the CAN bus;

[0057] When the chassis controller receives the CAN message sent by the body controller, the chassis controller first judges the lamp type signal bit, and then drives the corresponding lamp according to the enable signal. The same kind of lamp driven by the chassis controller has different driving output pins if the lamp types are different.

[0058] Specifically, the body controller confirms the lighting lamp connected to the chassis controller through the calibration item in the EEPROM as an LED lighting lamp or a halogen lighting lamp or a hybrid lighting lamp.

[0059] The body controller sends the CAN message according to the collected switch signal, the lamp type, and the first correspondence table. The chassis controller receives the CAN message sent by the body controller, parses the message, obtains the lamp type according to the first correspondence table, obtains the pin defined according to the lamp type according to the second correspondence table, and drives the pin to light the corresponding lamp.

[0060] Table 1 is a lighting lamp specification table, and Table 2 is a second correspondence table, which defines the pin resources of the chassis controller and the driving capability of each pin, i.e. the maximum power, and defines the pin functions in assembling different LED lighting lamps or halogen lighting lamps or hybrid lighting lamps according to the pin resources and the pin driving capability. Specifically, since the power of the turn signal in the LED headlamp is small, if one pin output cannot diagnose the open circuit of a single lamp, the left front, left side, right front, and right side of the turn signal occupy different pin resources for driving. The power of the turn signal in the halogen headlamp is large, and if one pin drives the left front and left side two lamps, the open circuit of a single lamp can be diagnosed. Specifically, for the halogen lighting lamp, within the driving capability range of the chassis controller, the single-sided high beam and auxiliary high beam can be driven together to reduce the pin resource occupation.

[0061] Table 3 is a first correspondence table, which defines the lamp on / off signal sent by the body controller to the chassis controller after collecting the external switch signal.

[0062] Table 1: Lighting lamp specification table

[0063]

[0064] Table 2: Second correspondence table

[0065]

[0066] Table 3: First correspondence table

[0067]

[0068] The specific control process of the system provided in the application is as follows:

[0069] First, the body controller collects the light switch signal.

[0070] Then, the body controller confirms whether the lighting lamp connected to the chassis controller is an LED lighting lamp, a halogen lighting lamp or a hybrid lighting lamp through the calibration item in the EEPROM.

[0071] If the calibration item in the EEPROM is an LED lighting lamp, the body controller collects that the right turn switch is on, and then sends a CAN message, in which the signal V is filled with an LED headlamp and the signal IV is filled with the right turn switch being on; the chassis controller receives the CAN message sent by the body controller, analyzes the signal V as an LED lighting lamp type, and then drives the pin 4 and the pin 6 according to the pin definition of the LED lighting lamp.

[0072] If the calibration item in the EEPROM is a halogen lighting lamp, the body controller collects that the right turn switch is on, and then sends a CAN message, in which the signal V is filled with a halogen lighting lamp and the signal IV is filled with the right turn switch being on; the chassis controller receives the CAN message sent by the body controller, analyzes the signal V as a halogen lighting lamp type, and then drives the pin 5 according to the pin definition of the halogen lighting lamp.

[0073] If the calibration item in the EEPROM is a hybrid lighting lamp, the body controller collects that the right turn switch is on, and then sends a CAN message, in which the signal V is filled with a hybrid lighting lamp and the signal IV is filled with the right turn switch being on; the chassis controller receives the CAN message sent by the body controller, analyzes the signal V as a hybrid lighting lamp type, and then drives the pin 3 according to the pin definition of the hybrid lighting lamp.

[0074] The lighting of the remaining lamps is the same as the right turn lighting described above.

[0075] It needs to be further explained that when creating the first and second correspondence tables, the vehicle lamp type, light control signal and other requirements need to be fully sorted out, the control logic and signal requirements of various lamps under different working conditions are clarified, and it is ensured that the correspondence table meets the actual requirements. In combination with the vehicle electrical system architecture, chassis controller pin characteristics and other factors, the correspondence between signals and lamps, pins and lamps is reasonably planned to avoid logical errors. After the design is completed, various vehicle working conditions and light control operations are simulated in the laboratory environment, the system is tested according to the correspondence table, and whether the signal transmission between the vehicle body controller and the chassis controller and the lamp lighting condition are consistent with the expected value is checked. The part that does not meet the expectation is adjusted to the correspondence table. The vehicle is put into actual road test, the light control data under different road conditions and driving scenes are collected, the accuracy and reliability of the correspondence table in the real environment are verified, and further optimization is carried out for the problems that occur. Compatibility test is carried out on different types of lamps (LED, halogen, hybrid, etc.), to ensure that the correspondence table can work normally under various lamp configurations, and to ensure the universality of the system. During the use of the vehicle, the working data of the vehicle body controller and the chassis controller are continuously monitored, the signal transmission and lamp control conditions are analyzed, potential problems are found in time, and the correspondence table is optimized through data analysis.

[0076] The first and second correspondence tables are logically checked. Check if the data in the table meets the basic electrical principles and vehicle light control logic. For example, in the second correspondence table, check if the driving power of the pin can meet the power requirement of the lamp corresponding to it; in the first correspondence table, confirm if the association of CAN signal and lamp type is reasonable. Since there is an association between the first and second correspondence tables, the logical consistency between them needs to be checked. For example, if a certain lamp type is determined in the first correspondence table, the second correspondence table should be able to correctly match the corresponding driving pin and power. If it does not match, there is a problem. In the laboratory environment, use test equipment to simulate various light control scenarios and observe the response of the system. According to the simulated light control signal, compare whether the actual lamp lighting condition is consistent with the expected result of the correspondence table. If it is not consistent, the approximate range of the problem can be determined. During the operation of the vehicle, the CAN message transmission data between the vehicle body controller and the chassis controller, as well as the output state of the chassis controller pin, are monitored in real time through data acquisition equipment. Analyze the collected data to see if there are signal transmission errors, pin driving abnormalities and other conditions, so as to locate the possible error position of the correspondence table.

[0077] If the error in the correspondence table is located, such as pin number, power value, CAN signal name error, etc., the data in the table is directly corrected. After correction, test and verify again to ensure that the problem is solved.

[0078] If it is found that there is a problem in the logical design of the correspondence table, such as the unreasonable association of the lamp type and the CAN signal, pin, the logical relationship needs to be redesigned and adjusted. In the adjustment process, the actual use requirements of the vehicle and the working principle of the electrical system should be fully considered. After adjustment, comprehensive testing is also required. The correspondence table is usually stored in the software of the body controller and the chassis controller. If it is found that the problem is caused by defects in the software version, the software of the related controller needs to be updated. After updating the software, the system is tested again to ensure that the correspondence table can work normally.

[0079] As shown in Figure 2 The embodiment of the application provides a vehicle lamp control method applied to the system described in the above embodiment. It should be noted that the system also includes a light knob switch, a light left combination switch, a body controller, a chassis controller, an LED lighting lamp, a halogen lighting lamp and a hybrid lighting lamp. The light knob switch includes a low beam switch. The light left combination switch includes a left turn signal, a right turn signal and a high beam switch. The lighting lamp includes a low beam, an auxiliary high beam, a front turn signal, a side turn signal and a high beam. The above lamps are divided into left and right sides, totaling 10. In the LED lighting lamp, the above lamps are all LED types, and the power of each lamp on one side is less than 20W. In the halogen lighting lamp, the above lamps are all halogen types, and the power of each lamp on one side is less than 70W. In the hybrid lighting lamp, the above lamps are either LED types or halogen types, and the two are mixed. The chassis controller has 6 driving output pins, and the maximum driving power of a single pin is 90W. The body controller is responsible for collecting light knob switch and light left combination switch signals. The body controller sends switch information to the chassis controller through a CAN bus. The chassis controller is responsible for driving the LED headlamp, the halogen headlamp or the hybrid headlamp. When the chassis controller drives the LED headlamp, the halogen headlamp or the hybrid headlamp, the lamps connected to the same pin are different. The type of the headlamp is written into the EEPROM of the body controller through a calibration item. When the body controller detects that the knob switch or the left combination switch is closed, it immediately sends a CAN message to the chassis controller. The CAN message sent by the body controller contains a headlamp type signal. When the calibrated headlamp type in the EEPROM is different, the value of the headlamp type signal is consistent with the type of the installed headlamp. The headlamp type in the EEPROM comes from the vehicle configuration table. When the chassis controller receives the CAN message sent by the body controller, it first judges the lamp type signal bit, and then drives the corresponding lamp according to the enable signal. The same type of lamp driven by the chassis controller has different driving output pins if the lamp types are different. The method includes the following steps:

[0080] S1: The body controller collects light switch signals;

[0081] S2: The body controller confirms the lamp type of the lighting lamp connected to the chassis controller through the calibration item in the EEPROM;

[0082] If the calibration item in the EEPROM is an LED lighting lamp, step S3 is performed;

[0083] If the calibration item in the EEPROM is a halogen lighting lamp, step S4 is performed;

[0084] If the calibration item in the EEPROM is a hybrid lighting lamp, step S5 is performed;

[0085] S3: The body controller sends a CAN message according to the collected light switch signal and the first corresponding relationship table, and the lamp type corresponding to the signal name in the CAN message is the LED headlamp and the lamp state; the chassis controller receives the CAN message sent by the body controller, parses the CAN message to obtain the lamp type as the LED lighting lamp, and drives the corresponding pins to light the corresponding LED lighting lamp according to the pin definition of the LED lighting lamp in the second corresponding relationship table;

[0086] S4: The body controller sends a CAN message according to the collected light switch signal and the first corresponding relationship table, and the lamp type corresponding to the signal name in the CAN message is the halogen lighting lamp and the lamp state; the chassis controller receives the CAN message sent by the body controller, parses the CAN message to obtain the lamp type as the halogen lighting lamp, and drives the corresponding pins to light the corresponding halogen lighting lamp according to the pin definition of the halogen lighting lamp in the second corresponding relationship table;

[0087] S5: The body controller sends a CAN message according to the collected light switch signal and the first corresponding relationship table, and the lamp type corresponding to the signal name in the CAN message is the hybrid lighting lamp and the lamp state; the chassis controller receives the CAN message sent by the body controller, parses the CAN message to obtain the lamp type as the hybrid lighting lamp, and drives the corresponding pins to light the corresponding hybrid lighting lamp according to the pin definition of the hybrid lighting lamp in the second corresponding relationship table.

[0088] Specifically, in some embodiments, in combination with Table 1 and Table 2, when the body controller collects that the right turn switch is opened, if the calibration item in the EEPROM is an LED lighting lamp, the body controller sends a CAN message, the signal V in the CAN message is filled with the LED headlamp, and the signal IV is filled with the right turn switch being opened; the chassis controller receives the CAN message sent by the body controller, parses the signal V as the LED lighting lamp type, and then drives the pin 4 and the pin 6 according to the pin definition of the LED lighting lamp;

[0089] If the calibration item in the EEPROM is a halogen light, the body controller sends a CAN message, the signal V in the CAN message is filled with the halogen light, and the signal IV is filled with the right turn switch being opened; the chassis controller receives the CAN message sent by the body controller, analyzes the signal V as the halogen light, and then drives the pin 5 according to the pin definition of the halogen light;

[0090] If the calibration item in the EEPROM is a halogen light, the body controller sends a CAN message, the signal V in the CAN message is filled with the halogen light, and the signal IV is filled with the right turn switch being opened; the chassis controller receives the CAN message sent by the body controller, analyzes the signal V as the halogen light, and then drives the pin 5 according to the pin definition of the halogen light;

[0091] The embodiment of the application further provides a vehicle, which comprises the control system as described in the above embodiment, or the vehicle executes the control method as described in the above embodiment.

[0092] The above description of disclosed embodiments enables a person skilled in the art to implement or use the application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the application. Therefore, the application will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A control system compatible with multiple vehicle lighting systems, characterized in that, Includes a body controller, which is connected to an input light switch and a chassis controller, which is connected to vehicle lights; The body controller stores a first correspondence table and calibration items for lamp types set according to the vehicle configuration. The first correspondence table is a correspondence table between the body controller CAN signal and the lamp type. The chassis controller stores a first correspondence table and a second correspondence table; the second correspondence table is a table showing the correspondence between the driving power and the light of different types of lamps for different pins of the chassis controller. The body controller acquires the signal from the input light switch and confirms the type of the lighting fixture connected to the chassis controller through calibration items. Based on the input light switch signal and the fixture type, and combined with the first correspondence table, it sends a CAN message to the chassis controller. The chassis controller receives the CAN message from the body controller, parses the message to obtain the fixture type, obtains the drive pin of the chassis controller according to the second correspondence table, and drives the pin to light up the corresponding fixture. According to the pin definition corresponding to the fixture type in the second correspondence table, it drives the corresponding pin to light up the corresponding fixture.

2. The control system compatible with multiple vehicle lights according to claim 1, characterized in that, The body controller is equipped with an EEPROM, and the type of vehicle lighting fixtures is written into the body controller's EEPROM through calibration.

3. The control system compatible with multiple vehicle lights according to claim 2, characterized in that, The input light switches include a light rotary switch and a light left combination switch, which are respectively connected to the body control unit.

4. The control system compatible with multiple vehicle lights according to claim 3, characterized in that, The light knob switch includes a low beam switch; The left combination switch for the lights includes a left turn signal switch, a right turn signal switch, and a high beam switch. Vehicle lights include left and right low beam headlights, left and right auxiliary high beam headlights, left and right front turn signals, left and right side turn signals, and left and right high beam headlights.

5. The control system compatible with multiple vehicle lights according to claim 4, characterized in that, Vehicle lighting fixtures include LED lights, halogen lights, and hybrid lights.

6. The control system compatible with multiple vehicle lights according to claim 5, characterized in that, The body controller is responsible for collecting signals from the light knob switch and the left combination switch, determining the lamp type through the calibration items in the EEPROM, and sending the switch signal to the chassis controller via the CAN bus. When the chassis controller receives the CAN message sent by the body controller, it determines the signal name of the lamp type, obtains the enable signal of the drive pin of the chassis controller through the second correspondence table, and drives the corresponding lamp according to the enable signal.

7. The control system compatible with multiple vehicle lights according to claim 6, characterized in that, The body controller uses the calibration entries in the EEPROM to confirm whether the lighting connected to the chassis controller is an LED lighting lamp, a halogen lighting lamp, or a hybrid lighting lamp; The body controller sends a CAN message based on the collected switch signal, lamp type, and first correspondence table. The chassis controller receives the CAN message sent by the body controller, parses the message, obtains the lamp type according to the first correspondence table, obtains the pin defined for the lamp type according to the second correspondence table, and drives the pin to light up the corresponding lamp.

8. A vehicle lighting control method applied to the system described in claims 1-7, characterized in that, Includes the following steps: The vehicle body controller collects signals from the light switches; The body controller uses the calibration entries in the EEPROM to confirm whether the lighting connected to the chassis controller is an LED lighting lamp, a halogen lighting lamp, or a hybrid lighting lamp; If the calibration item in the EEPROM is LED lighting, the body controller sends a CAN message based on the collected light switch signal and the first correspondence table. The corresponding signal name in the CAN message corresponds to the type of lamp, which is LED headlight and the lamp status. The chassis controller receives the CAN message sent by the body controller, parses the CAN message to obtain the lamp type as LED lighting, and drives the corresponding pin to light up the corresponding LED lighting according to the pin definition in the second correspondence table. If the calibration item in the EEPROM is halogen lighting, the body controller sends a CAN message based on the collected light switch signal and the first correspondence table. The corresponding signal name in the CAN message corresponds to the type of lamp, which is halogen lighting, and the lamp status. The chassis controller receives the CAN message sent by the body controller, parses the CAN message to obtain the lamp type as halogen lighting, and drives the corresponding pin to light up the corresponding halogen lighting according to the pin definition of halogen lighting in the second correspondence table. If the calibration item in the EEPROM is a hybrid lighting lamp, the body controller sends a CAN message based on the collected light switch signal and the first correspondence table. The corresponding signal name in the CAN message corresponds to the type of lamp, which is a hybrid lighting lamp, and the lamp status. The chassis controller receives the CAN message sent by the body controller, parses the CAN message to obtain the lamp type as a hybrid lighting lamp, and drives the corresponding pin to light up the corresponding hybrid lighting lamp according to the hybrid lighting lamp pin definition in the second correspondence table.

9. The vehicle lighting control method according to claim 8, characterized in that, The method also includes: When the body controller detects that the right turn switch is turned on, if the calibration item in the EEPROM is LED lighting, the body controller sends a CAN message. In the CAN message, signal V is filled with LED headlight and signal IV is filled with right turn switch turned on. The chassis controller receives the CAN message sent by the body controller, parses signal V as LED lighting type, and then defines the drive pins 4 and 6 according to the LED lighting pin definition. If the calibration item in the EEPROM is halogen lighting, the body controller sends a CAN message. In the CAN message, signal V is filled with halogen lighting and signal IV is filled with right turn switch open. The chassis controller receives the CAN message sent by the body controller, parses signal V as halogen lighting, and then defines the drive pin 5 according to the halogen lighting pin definition. If the calibration item in the EEPROM is "hybrid lighting", the body controller sends a CAN message. In the CAN message, signal V is filled with "hybrid lighting" and signal IV is filled with "right turn switch on". The chassis controller receives the CAN message sent by the body controller, parses signal V as "hybrid lighting", and then defines the drive pin 3 according to the hybrid lighting pin definition.

10. A vehicle, characterized in that, The vehicle includes the control system as described in any one of claims 1-7.

Images