Headlamp control channel expansion system and method

Abstract

The invention provides a headlamp control channel expansion system and method, and relates to the technical field of light control, the headlamp control channel expansion system comprises a controller mainboard, a hard wire interface input assembly, a plurality of expandable cross flow channel driving assemblies and an output control pin assembly; the controller mainboard comprises a first socket, a second socket and a third socket; the hard wire interface input assembly is inserted into the first socket and comprises a plurality of expandable hard wire input ports and hard wire output ports, the hard wire input ports are connected with a whole vehicle signal wire harness, and the hard wire output ports are connected with the controller mainboard and used for collecting hard wire level signals from the hard wire input ports and outputting the hard wire level signals to the controller mainboard; and the hard wire level signal is sent to the processor of the controller mainboard through the hard wire output port. According to the system and the method provided by the invention, free combination of channels can be performed according to actual project requirements, higher expandability is achieved, headlamp control wiring is simple, and the reliability of the system and the convenience of subsequent maintenance are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of lighting control, and in particular to a headlight control channel expansion system and method. Background Art

[0002] In modern car design, the lighting control system plays a vital role, especially the headlight control module, as the core part of the vehicle lighting system, its design directly affects the safety, sense of technology and user experience of the whole vehicle.

[0003] However, in the prior art, the headlight control module usually adopts a fixed design concept, which leads to a serious mismatch problem in the number of channels. For example, the basic vehicle only has position lights, daytime running lights, turn signals, low beam lights, and high beam lights; but for some vehicle shapes, it is necessary to add LOGO lights, front through lights, corner lights, etc.; or the same lights, but due to different shapes, require multiple channels to drive, such as position lights require 3 drive channels. The above situation will make it difficult to fully meet the current development platform control module, either there will be a waste of cross-flow drive channels, or there will be insufficient drive channels. Moreover, since the platform solution hardware and interfaces are unified, it is difficult to modify and adjust for specific projects, lacking flexibility, and unable to meet the requirements of low cost and diversity for different projects. And due to the high concentration of the platform, the corresponding maintenance cost is also increased. When there is a problem with a single channel, the after-sales processing can only replace the entire controller, which increases the user's maintenance cost. Summary of the invention

[0004] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a headlight control channel expansion system and method, which is used to solve the problem that the headlight control module in the prior art usually adopts a fixed design concept, resulting in a serious mismatch in the number of channels; it is difficult to modify and adjust for specific projects, lacks flexibility, and cannot meet the requirements of low cost and diversity of different projects; when there is a problem with a single channel, after-sales processing can only replace the entire controller, increasing the user's maintenance cost.

[0005] To achieve the above-mentioned purpose and other related purposes, the present invention provides a headlight control channel expansion system, including: a controller mainboard, a hard-wire interface input component, a plurality of expandable cross-flow channel drive components and an output control pin component; the controller mainboard includes a first socket, a second socket and a third socket; the hard-wire interface input component is inserted into the first socket, including a plurality of expandable hard-wire input ports and hard-wire output ports, the hard-wire input port is connected to the vehicle signal harness, and the hard-wire output port is connected to the controller mainboard, and is used to collect hard-wire level signals from the hard-wire input port, and send the hard-wire level signals to the processor of the controller mainboard through the hard-wire output port; the processor is used to generate corresponding drive function instructions according to the hard-wire level signals and the parameter configuration table. The cross-flow channel driving component is plugged into the second socket, the cross-flow channel driving component is connected to the processor for communication, and the cross-flow channel driving component is connected to the power supply component on the controller mainboard, and is used for converting the current of the power supply component into the driving current corresponding to the driving function instruction through the corresponding cross-flow channel driving component according to the driving function instruction, and sending it to the output control pin component; the output control pin component is plugged into the third socket, including a signal input terminal and a plurality of expandable output ports, the cross-flow channel driving component is connected to the signal input terminal, and the output port is connected to the headlight component, and is used for outputting the driving current corresponding to the driving function instruction obtained from the signal input terminal to the headlight component through the corresponding output port.

[0006] In one embodiment of the present invention, after the controller mainboard is powered on, the processor performs pin validity verification on each hard-wired input port of the hard-wired interface input component to obtain a first verification result; when the first verification result is a pin signal error, a fault alarm is issued and an abnormal signal is fed back.

[0007] In one embodiment of the present invention, after the controller mainboard is powered on, the processor performs a validity check on the cross-flow channel drive component to obtain a second check result; when the second check result is that there is a cross-flow channel drive component failure, the corresponding cross-flow channel drive component failure is fed back.

[0008] In one embodiment of the present invention, after the controller mainboard is powered on, the processor performs pin validity verification on each signal input end of the output control pin component to obtain a third verification result; when the third verification result is a pin signal error, a fault alarm is issued and an abnormal signal is fed back.

[0009] In one embodiment of the present invention, the pins of the second socket and the pins of the third socket are connected in a one-to-one correspondence on the controller mainboard.

[0010] In one embodiment of the present invention, the processor receives a preset driving function instruction and correspondingly modifies the configuration parameters in the parameter configuration table of the processor to update the parameter configuration table.

[0011] In one embodiment of the present invention, the configuration parameters in the parameter configuration table include function light information, signal channel information, and corresponding selection information of the function light information and signal channel information corresponding to the driving function instruction.

[0012] In one embodiment of the present invention, the corresponding selection information of the function light information and the signal channel information corresponding to the driving function instruction includes first corresponding selection information of a single function light information and a single signal channel information, second corresponding selection information of multiple function light information and a single signal channel information, and third corresponding selection information of a single function light information and multiple signal channel information.

[0013] In one embodiment of the present invention, the headlight control channel expansion system also includes a memory component for storing light show script data; the controller mainboard also includes a fourth socket, and the memory component is inserted in the fourth socket; the processor is also used to generate a driving function instruction for the corresponding cross-current channel driving group according to the light show instruction and the light show script data, and send it to the cross-current channel driving group; the cross-current channel driving component is also used to convert the current obtained from the power supply component into a light show driving current corresponding to the driving function instruction through the corresponding cross-current channel driving component according to the driving function instruction, and send it to the output control pin component; the output control pin component is also used to obtain the light show driving current from the signal input end and output it to the headlight component through the corresponding output port.

[0014] In order to achieve the above-mentioned purpose and other related purposes, the present invention also provides a headlight control channel expansion method, including: by inserting a hard-wire interface input component into a first socket of a controller mainboard, connecting several expandable hard-wire input ports of the hard-wire interface input component to a vehicle signal harness, connecting a hard-wire output port of the hard-wire interface input component to the controller mainboard, collecting a hard-wire level signal from the expanded hard-wire input port, and sending the hard-wire level signal to a processor of the controller mainboard through the hard-wire output port; generating a corresponding drive function instruction according to the hard-wire level signal and a parameter configuration table by the processor, and sending the instruction to the cross-flow channel drive component; by connecting several expandable cross-flow channel drive components The component is inserted into the second socket, the cross-current channel drive component is communicatively connected with the processor, the cross-current channel drive component is connected with the power supply component on the controller main board, and according to the drive function instruction, the current of the power supply component is converted into the drive current corresponding to the drive function instruction through the corresponding cross-current channel drive component, and sent to the output control pin component; by inserting the output control pin component into the third socket, the cross-current channel drive component is connected to the signal input end of the output control pin component, and several expandable output ports of the output control pin component are connected to the headlight component, and the drive current corresponding to the drive function instruction obtained from the signal input end is output to the headlight component through the corresponding output port.

[0015] As described above, a headlight control channel expansion system and method of the present invention has the following beneficial effects: by adding a first socket on the controller component to cooperate with the hard-wire interface input component to form a hard-wire signal acquisition input port expansion area, adding a second socket to cooperate with the cross-flow channel drive component to form a cross-flow channel expansion area, adding a third socket to cooperate with the output control pin component to form an output control pin expansion area, and adding a fourth socket to cooperate with the memory component to form a memory expansion area, the user can flexibly splice the drive module according to needs to support a variety of lighting configurations; the user can also select multiple channels according to project needs, and this design greatly improves the adaptability of the system; by adding a third socket to cooperate with the output control pin component to form an output control pin ... the adaptability of the system is greatly improved through this design; by adding a third socket to cooperate with the output control pin component to form an output control pin expansion area, the user can flexibly splice the drive module according to needs to support a variety of lighting configurations; the user can flexibly splice the drive module according to needs to support a variety of lighting configurations; the user can flexibly splice the drive module according to needs to support a variety of lighting configurations; the user can flexibly splice the drive module according to needs to support a variety of lighting configurations; the user can flexibly splice the drive module according to needs; the user can flexibly splice the drive module according to needs; the user can flexibly splice the drive module according to needs; the user can flexibly splice the drive module according to needs; the user can flexibly splice the drive module according to needs; the user can The plug-in design of the hard-wire signal acquisition input port expansion area is introduced on the board, and users can freely add or delete signal input modules; and the signal input module also has an automatic identification function, which simplifies the system configuration and improves convenience; and by managing the expanded output channels and the expanded input hard-wire level signals in a table association manner, and sending the corresponding drive function instructions to the corresponding cross-flow channel drive components through the module configuration file (parameter configuration table), the degree of freedom can be further increased; by using the comparison and verification of configuration parameters and software parameters, the self-check of the channel and interface can be completed before turning on the light (that is, before the controller mainboard is powered on), which plays a role in reducing risks. Moreover, in the present invention, through the modular plug-in design of the entire system, users can freely combine according to actual project requirements, effectively reducing development costs, and improving project implementation efficiency and flexibility; the present invention also achieves higher channel scalability, and users can easily add new functions to adapt to future changes in demand; and through optimized module design, users can reduce complex line connections, improve system reliability and convenience of subsequent maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural block diagram of a headlight control channel expansion system provided in one embodiment of the present invention.

[0017] Figure 2 A schematic diagram of the structural connection of a controller component provided in one embodiment of the present invention.

[0018] Figure 3 A schematic diagram of the signal channel position of the signal acquisition input port expansion area provided in one embodiment of the present invention.

[0019] Figure 4 A schematic diagram of an assignment judgment process provided by an embodiment of the present invention.

[0020] Figure 5 A schematic diagram of the structure of the collection contacts on the cross-current drive channel assembly provided in one embodiment of the present invention.

[0021] Figure 6Shown is a flow chart of a headlight control channel expansion method provided by an embodiment of the present invention.

[0022] Component number description

[0023] Controller mainboard 10; hard-wire interface input component 20; cross-current channel drive component 30; output control pin component 40; memory component 50; processor 11; first socket 12; second socket 13; third socket 14; fourth socket 15; power supply component 16. DETAILED DESCRIPTION

[0024] The following describes the embodiments of the present invention by specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0025] It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present invention, and thus the drawings only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0026] In the following description, numerous details are discussed to provide a more thorough explanation of the embodiments of the present invention. However, it is obvious to those skilled in the art that the embodiments of the present invention can be implemented without these specific details. In other embodiments, well-known structures and devices are shown in the form of block diagrams rather than in detail to avoid making the embodiments of the present invention difficult to understand.

[0027] See also Figure 1The present invention provides a headlight control channel expansion system, comprising: a controller mainboard 10, a hard-wire interface input component 20, a plurality of expandable cross-flow channel drive components 30 and an output control pin component 40; the controller mainboard 10 comprises a first socket 12, a second socket 13 and a third socket 14; the hard-wire interface input component 20 is inserted into the first socket 12, comprising a plurality of expandable hard-wire input ports and hard-wire output ports, the hard-wire input port is connected to the vehicle signal harness, the hard-wire output port is connected to the controller mainboard 10, and is used to collect hard-wire level signals from the hard-wire input port, and send the hard-wire level signals to the processor 11 of the controller mainboard 10 through the hard-wire output port; the processor 11 is used to generate corresponding drive function instructions according to the hard-wire level signals and the parameter configuration table, and send them to the cross-flow channel drive components 30 and the output control pin components ... The cross-flow channel driving component 30 is inserted into the second socket 13, the cross-flow channel driving component 30 is communicatively connected with the processor 11, and the cross-flow channel driving component 30 is connected with the power supply component 16 on the controller main board 10, and is used for converting the current obtained from the power supply component 16 into the driving current corresponding to the driving function instruction through the corresponding cross-flow channel driving component 30 according to the driving function instruction, and sending it to the output control pin component 40; the output control pin component 40 is inserted into the third socket 14, including a signal input end and a plurality of expandable output ports, the cross-flow channel driving component 30 is connected with the signal input end, and the output port is connected with the headlight component, and is used for outputting the driving current corresponding to the driving function instruction obtained from the signal input end to the headlight component through the corresponding output port.

[0028] It is not difficult to find out from the above content that in the headlight control channel expansion system of the present invention, the controller mainboard 10 mainly includes a processor 11, a first socket 12, a second socket 13 and a third socket 14. Among them, the first socket 12 constitutes a hard-wire signal acquisition input port expansion area for plugging in a hard-wire interface input component 20; the second socket 13 constitutes a cross-flow channel expansion area for plugging in a plurality of expandable cross-flow channel drive components 30; the third socket 14 constitutes an output control pin expansion area for plugging in an output control pin component 40. On the controller mainboard 10, the hard-wired output port of the hard-wired interface input component 20 is connected to the processor 11 by connecting the expandable hard-wired input port (which can be a pin) on the hard-wired interface input component 20 to the vehicle signal harness; at the same time, the cross-flow channel drive component 30 and the output control pin component 40 are connected using the second socket 13 and the third socket 14, that is, only the processor 11 needs to be connected to the hard-wired interface input component 20 to realize the level control of the external connection, that is, according to the input of the hard-wired level signal of the external connection to the hard-wired interface input component 20, the corresponding function of the headlight is further controlled through the cross-flow channel drive component 30 and the output control pin component 40. Specifically, the hard-wired level signal of the vehicle headlight can be collected through the hard-wired interface input component 20, and the processor 11 will generate the corresponding drive function instruction according to the hard-wired level signal and the parameter configuration table, and send it to the cross-flow channel drive component 30. After obtaining the driving function instruction, the cross-current channel driving component 30 converts the current of the power supply component 16 into the driving current corresponding to the driving function instruction through the corresponding cross-current channel driving component 30, and then sends the driving current to the output control pin component 40. Further, the output control pin component 40 outputs the driving current to the headlight component through the corresponding expandable output port to turn on the required light. Through the above method, users can flexibly splice driving modules according to their needs to support a variety of lighting configurations. In addition, users can also select multiple channels according to project needs. This design greatly improves the adaptability of the system; by adopting a plug-in expansion module design, users can freely add or delete the corresponding expansion modules in each expansion area of ​​the signal, and the expansion module can also realize automatic recognition function, which simplifies system configuration and improves convenience.

[0029] Preferably, the processor 11 may be a MCU (micro control unit).

[0030] After the controller mainboard 10 is powered on, the processor 11 performs pin validity verification on each hard-wire input port of the hard-wire interface input component 20 to obtain a first verification result; when the first verification result is a pin signal error, a fault alarm is issued and an abnormal signal is fed back.

[0031] In one embodiment of the present invention, when the controller mainboard 10 is powered on, the processor 11 will perform pin validity check on each hard-wired input port of the hard-wired interface input component 20. Specifically, a contact check method can be adopted to achieve self-checking of the channel and the interface before turning on the light. That is, the pin contacts of the hard-wired interface input component 20 and the contacts at the inspection position of the controller mainboard 10 are checked for contact connectivity. If the two are connected to each other, a first check result indicating that the pin is valid is obtained; and when the two are not connected, the first check result is a pin signal error, and when the pin signal is wrong, a fault alarm is issued and an abnormal signal is fed back.

[0032] When the vehicle signal harness is connected to the hard-wire input port of the hard-wire interface input component 20, it can also be verified through binary assignment. Specifically, if a hard-wire level signal for a certain lighting control is input to the hard-wire interface input component 20, the signal channel assignment collected by the corresponding hard-wire input port will be monitored, and the obtained signal channel assignment will be compared with the corresponding assignment in the parameter configuration table of the processor 11. If the two are consistent, the verification result of the correct connection of the vehicle signal harness is obtained; if the two are inconsistent, the verification result of the wrong connection of the vehicle signal harness is obtained.

[0033] After the controller mainboard 10 is powered on, the processor 11 performs a validity check on the cross-flow channel drive component 30 to obtain a second check result; when the second check result is that there is a fault in the cross-flow channel drive component 30, the corresponding cross-flow channel drive component 30 fault is fed back.

[0034] In one embodiment of the present invention, during the validity check of the cross-flow channel drive component 30, a contact connection check method can be used for verification. That is, after the cross-flow channel drive component 30 is inserted into the second socket 13, the processor 11 performs a contact connection check on the pin contacts of the cross-flow channel drive component 30 and the contacts at the inspection position of the controller mainboard 10. If the two are connected to each other, a second verification result of a valid pin is obtained; and when the two are not connected, the second verification result is a pin signal error, and when the pin signal is wrong, a fault alarm is issued, and an abnormal signal is fed back.

[0035] After the controller mainboard 10 is powered on, the processor 11 performs pin validity verification on each signal input end of the output control pin assembly 40 to obtain a third verification result; when the third verification result is a pin signal error, a fault alarm is issued and an abnormal signal is fed back.

[0036] In one embodiment of the present invention, when performing pin validity verification on each signal input end of the output control pin assembly 40, a contact connection verification method can also be used. Specifically, after the output control pin assembly 40 is inserted into the third socket 14, the processor 11 performs a contact connection verification on the pin contact of the output control pin assembly 40 and the contact at the inspection position of the controller mainboard 10. If the two are connected to each other, a third verification result indicating that the pin is valid is obtained; and when the two are not connected, the third verification result is a pin signal error, and when the pin signal is wrong, a fault alarm is issued, and an abnormal signal is fed back.

[0037] By comparing and verifying the specific configuration parameters with the corresponding configuration parameters in the parameter configuration table, a self-check of the channel and the interface can be completed before turning on the light, thereby reducing the risk.

[0038] The pins of the second socket 13 and the pins of the third socket 14 are connected one by one on the controller main board 10. In this embodiment, after the expandable cross-flow channel driving component 30 is inserted into the second socket 13 and the output control pin component 40 is inserted into the third socket 14, if the cross-flow channel driving component 30 and the second socket 13 are interconnected, and the output control pin component 40 and the third socket 14 are interconnected, the driving current distributed by the cross-flow channel driving component 30 can be output from the second socket 13 to the third socket 14, and output from the output control pin component 40 to the headlight component.

[0039] The processor 11 receives the preset driving function instruction, and modifies the configuration parameters in the parameter configuration table of the processor 11 accordingly, so as to update the parameter configuration table. In this embodiment, in the configuration work such as deleting and modifying the parameter configuration table, the processor 11 receives the preset driving function instruction issued by the staff through the user interface, etc., to modify the configuration parameters in the parameter configuration table corresponding to the preset driving function instruction, and updates the parameter configuration table after the modification is completed.

[0040] Specifically, the configuration parameters in the parameter configuration table include function light information, signal channel information, and corresponding selection information of function light information and signal channel information corresponding to the driving function instruction. In this embodiment, the function light information includes position light, daytime running light, turn signal, low beam, high beam and LOGO light, etc.; the signal channel information includes signal channel 1, signal channel 2, signal channel 3, signal channel 4, signal channel 5 and signal channel 6, etc.; the corresponding selection information of function light information and signal channel information can be, for example, corresponding selection information of position light and signal channel 1, corresponding selection information of daytime running light and signal channel 2, corresponding selection information of turn signal and signal channel 3, etc.

[0041] The corresponding selection information of the function light information and the signal channel information corresponding to the driving function instruction includes first corresponding selection information of a single function light information and a single signal channel information, second corresponding selection information of multiple function light information and a single signal channel information, and third corresponding selection information of a single function light information and multiple signal channel information.

[0042] In one embodiment of the present invention, for example, there may be a first corresponding selection information between a position light and signal channel 1, a first corresponding selection information between a daytime running light and signal channel 2, a first corresponding selection information between a turn signal and signal channel 3, etc., so as to realize the selection control corresponding to the single function light information and the single signal channel information. For example, the position light and the daytime running light may be selected and controlled through signal channel 1, that is, corresponding to the second corresponding selection information. Alternatively, the position light may trigger the third corresponding selection information when signal channel 1 and signal channel 2 are selected at the same time. This method may realize, for example, increasing channel redundancy to ensure that the light can be effectively turned on.

[0043] The headlight control channel expansion system also includes a memory component 50 for storing light show script data; the controller main board 10 also includes a fourth socket 15, and the memory component 50 is inserted into the fourth socket 15; the processor 11 is also used to generate a driving function instruction for the corresponding cross-current channel driving group according to the light show instruction and the light show script data, and send it to the cross-current channel driving group; the cross-current channel driving component 30 is also used to convert the current obtained from the power supply component 16 into a light show driving current corresponding to the driving function instruction through the corresponding cross-current channel driving component 30 according to the driving function instruction, and send it to the output control pin component 40; the output control pin component 40 is also used to obtain the light show driving current from the signal input end and output it to the headlight component through the corresponding output port.

[0044] In one embodiment of the present invention, by utilizing the fourth socket 15 on the controller mainboard 10, the memory component 50 for expanding the light show script data can be inserted into the fourth socket 15, so that when the processor 11 receives the light show instruction, the light show script data is retrieved. After being retrieved by the processor 11, it is converted into a corresponding driving instruction on the cross-current channel driving component 30, and according to the driving instruction, the current obtained from the power supply component 16 is converted into a light show driving current corresponding to the driving function instruction, and sent to the output control pin component 40. Then the output control pin component 40 obtains the light show driving current from the signal input end and outputs it to the headlight component through the corresponding output port to execute the corresponding light show instruction.

[0045] In a preferred embodiment of the present invention, the headlight control channel expansion system of the present invention also includes a CAN signal line, which is connected to the processor 11 and is used to obtain the CAN signal corresponding to the vehicle headlight as the control signal received by the processor 11. By introducing the plug-in design of the hard-wire interface input component 20 in the hard-wire signal acquisition input port expansion area corresponding to the first socket 12, the user can freely add or delete the hard-wire interface input component 20, and the hard-wire interface input component 20 can also realize the automatic recognition function, simplifying the system configuration and improving the convenience. Specifically, the hard-wire signal acquisition input port expansion area corresponds to the adapted hard-wire interface input component 20, and the main function of the hard-wire interface input component 20 is to connect the vehicle signal harness, and insert the control signal of the headlight on the vehicle into the signal acquisition port of the PCB mainboard corresponding to the headlight controller. For example, the entire controller component can be a structural arrangement installed on the PCB mainboard of the headlight controller. Of course, when the processor 11 obtains the control signal, what can be obtained is the hard-wire level signal of the hard-wire interface input component 20, and of course, it can be the CAN signal corresponding to the CAN signal line. Among them, the hard-wire interface input component 20 can be expanded according to the lighting control requirements; the CAN signal line can be a twisted pair, that is, connected to the processor through a two-wire serial communication method.

[0046] When there is no hard-wire level signal and the processor 11 obtains the CAN signal for lighting control, after the controller mainboard 10 is powered on, it is not necessary to perform pin validity check on each hard-wire input port of the hard-wire interface input component 20, and only the validity check between the cross-flow channel drive component 30 and the second socket 13, and between the output control pin component 40 and the third socket 14 is required.

[0047] See also Figure 1 , Figure 1In one embodiment, a first socket 12, a second socket 13, a third socket 14 and a fourth socket 15 are added to the controller mainboard 10, and the first socket 12 is used to form a hard-wire signal acquisition input port expansion area; the second socket 13 is used to form a cross-flow channel expansion area; the third socket 14 is used to form an output control pin expansion area; and the fourth socket 15 is used to form a memory expansion area. Among them, the hard-wire signal acquisition input port expansion area is adapted to a hard-wire interface input component 20, which is used to connect the vehicle signal harness and connect the control signal of the headlight on the vehicle to the signal acquisition port of the headlight controller PCB mainboard, that is, the hard-wire input port corresponding to the hard-wire interface input component 20. The cross-flow channel expansion area is adapted to the expandable cross-flow channel drive component 30, and is connected to the power supply component 16 on the controller mainboard 10 through the cross-flow drive channel component 30 to obtain the corresponding current size of the power supply component 16, and convert the current of the power supply component 16 into a drive current with a certain drive capability corresponding to the headlight component, wherein the drive capability is determined by the program parameters corresponding to the hard-wire level signal. The output control pin extension area is adapted to the output control pin component 40, and the function of the output control pin component 40 is to be connected to the headlight load to input the corresponding driving current to the headlight component to be controlled. The processor 11 can realize the corresponding hard-line level signal, and the signal acquisition input port extension area and the cross-flow channel extension area are checked for pin validity to obtain the verification result; when the verification result is passed, the driving function instruction corresponding to the hard-line level signal is sent to the cross-flow channel extension component 30. The memory extension area is adapted to the memory component 50, and the demand for light show effect storage of high-end models can be realized through the memory component 50, which increases the compatibility of the system solution. Specifically, in the signal acquisition input port extension area, the position light switch signal, the daytime running light switch signal, the turn signal switch signal, the low beam switch signal, the high beam switch signal and the front through light switch signal can be collected through the expandable hard-line input port. In the output control pin extension area, the headlight components connected by the output control pin component 40 include position lights, daytime running lights, turn signals, low beam lights, high beam lights and front through lights, so as to output the corresponding driving current.

[0048] See also Figure 2 , Figure 2In one embodiment, the controller mainboard 10 of the present invention mainly includes a first socket 12, a second socket 13 and a third socket 14. Among them, the first socket 12 corresponds to the hard-wire pin signal acquisition input port extension area, the second socket 13 corresponds to the cross-current drive channel extension area, the third socket 14 corresponds to the output control pin extension area, and the fourth socket 15 corresponds to the memory extension area; the power supply component 16 is installed on the controller mainboard 10; at the same time, the controller mainboard 10 also includes a processor 11. The external level control of the external connection can be realized through the hard-wire pin signal acquisition input port extension area, thereby realizing the input of the hard-wire interface input component 20 and the processor 11 by the hard-wire level signal respectively, and at the same time, the headlight function can be controlled through the cross-current drive channel extension area and the output control pin extension area, and when controlling the headlight component, the cross-current drive channel extension area can change the driving capacity of the power supply component 16 according to the hard-wire level signal through the expandable cross-current channel drive component 30, thereby realizing the output of the corresponding driving current to the headlight component.

[0049] In order to further increase the degree of freedom of the headlight control channel expansion process and achieve compatibility with all platforms, the processor 11 adopts a table management solution for the pins of each hard-wire interface input component 20 corresponding to the hard-wire signal acquisition expansion area. Taking channel 1 as an example, it can be configured to collect hard-wire level signals corresponding to the position light function, and can also be configured to collect hard-wire level signals corresponding to the turn signal function.

[0050] Channel and function configuration table:

[0051]

[0052]

[0053] The table above takes 6 channels as an example. Through this table, you can bind the functions corresponding to each hard-wired level signal to the channel; you can also bind multiple functions to the same channel or a single function to multiple channels to maximize the degree of freedom to meet the conditions of each project. This table will be converted into the configuration parameters corresponding to the hard-wired level signal in the software program to complete the input of the table and parameters.

[0054] See also Figure 3 , Figure 3In one embodiment, in order to reduce the misjudgment of the pin signal, the processor 11 also adds a verification scheme for the validity of the pin. Specifically, when the signal channel position is progressively assigned (such as according to the binary counting method), taking 6 channels as an example, for example, channel 1 can be assigned 1; channel 2 can be assigned 2; channel 3 can be assigned 4; channel 4 can be assigned 8; channel 5 can be assigned 16 and so on. The program code is compared with the value written in the parameter assignment and the value read through the hard-line level signal acquisition port. If they are different, the fault signal is fed back to the user to play the role of informing in advance and reducing the user's risk.

[0055] See also Figure 4 , Figure 4 In one embodiment, when the processor 11 verifies the validity of the pin, before the controller mainboard 10 is powered on, the connection status on the hard-line level signal acquisition port is read to obtain the value written in the program code. And according to the connection channel status, the progressive assignment calculation is performed according to the assignment rule, and the calculated value is collected. Then, the value written in the read program is compared with the collected calculated value to determine whether the two are consistent. If they are inconsistent, a fault alarm is issued and an abnormal signal is fed back; if they are consistent, the verification is completed, the main program is entered, and the drive instruction corresponding to the light control signal is sent to the cross-flow channel expansion area 30.

[0056] See also Figure 5 , Figure 5 In one embodiment given, because the pins on the cross-flow channel component 30 and the corresponding pins on the output control pin component 40 are already fixed on the controller mainboard 10, the above allocation method is not used. However, the effectiveness of its cross-flow drive channel component 30 will be tested, that is, multiple sampling contacts (such as 6) can be provided on the mainboard of the controller component, and calculations are performed after contact with the cross-flow drive channel component 30 (that is, the above-mentioned progressive assignment calculation scheme is adopted) to obtain the corresponding characteristic value, and then the characteristic value is compared with the set value for matching and testing. Because the mainboard program manages each cross-flow drive channel component separately, if a channel fails, the corresponding cross-flow drive channel component failure will be fed back to remind the maintenance personnel to replace it, thereby reducing the maintenance cost.

[0057] In addition, the memory component 50 on the memory expansion area corresponding to the fourth socket 15 can also be checked for validity of contact connectivity between its pin contacts and the corresponding position contacts of the fourth socket 15 to achieve advance inspection after the controller mainboard 10 is powered on.

[0058] In a preferred embodiment of the present invention, for example, when the hard-wired expansion input port is not inserted, in the process of using the CAN communication signal to control the position light, only the modules of channels 3, 4, and 5 are inserted in the cross-flow channel expansion area 30; only one output expansion port is inserted in the output port corresponding to the output control pin expansion area 40, and the PIN3, PIN4, and PIN5 on the output port are connected to the position light. When the headlights of the whole vehicle are powered on, that is, after the controller mainboard 10 is powered on, the processor 11 first reads the level signal of the insertion port on the signal acquisition input port expansion area 10. When the level signal is found to be 0, the processor 11 will determine that the light control signal is controlled by the CAN signal. Then the processor 11 will further read the cross-flow channel expansion area 30. When it is found that except for channels 3, 4, and 5, there are specific values, and other channels are 0, it means that only channels 3, 4, and 5 are available. Then compare the corresponding parameters in the parameter configuration table that the user passes to the processor 11, such as the MCU, to determine whether these three channels are also used. If so, the verification is completed, and the main program is entered to send the drive instruction corresponding to the control signal to the cross-flow channel expansion area 30. Finally, the processor 11 collects the control signal corresponding to the CAN signal, and it is also necessary to control the opening of the position light according to the control signal on the CAN signal; because the position light function is assigned to channels 3, 4, and 5, it is also necessary to control the corresponding module of the cross-flow channel expansion area 30 to conduct the output. These three modules are connected to the output expansion ports PIN3, PIN4, and PIN5 of the output control pin expansion area 40 on the main board of the light controller component, so the module output can be controlled to PIN3, PIN4, and PIN5 for output. Then, after confirming that the PIN3, PIN4, and PIN5 pins are configured as position lights, the drive output can be completed.

[0059] Referring to 6, the present invention further provides a headlight control channel expansion method, comprising:

[0060] Step S10: by inserting the hard-wire interface input component 20 into the first socket 12 of the controller mainboard 10, connecting several expandable hard-wire input ports of the hard-wire interface input component 20 with the vehicle signal harness, connecting the hard-wire output port of the hard-wire interface input component 20 with the controller mainboard 10, collecting hard-wire level signals from the expanded hard-wire input ports, and sending the hard-wire level signals to the processor 11 of the controller mainboard 10 through the hard-wire output port;

[0061] Step S20: the processor 11 generates a corresponding driving function instruction according to the hard-line level signal and the parameter configuration table, and sends it to the cross-flow channel driving component 30;

[0062] Step S30: by inserting a plurality of expandable cross-flow channel driving components 30 into the second socket 13, the cross-flow channel driving component 30 is communicatively connected with the processor 11, and the cross-flow channel driving component 30 is connected with the power supply component 16 on the controller mainboard 10, according to the driving function instruction, the current of the power supply component 16 is converted into the driving current corresponding to the driving function instruction by the corresponding cross-flow channel driving component 30, and sent to the output control pin component 40;

[0063] Step S40: By inserting the output control pin component 40 into the third socket 14, the cross-flow channel driving component 30 is connected to the signal input end of the output control pin component 40, and several expandable output ports of the output control pin component 40 are connected to the headlight component, and the driving current corresponding to the driving function instruction obtained from the signal input end is output to the headlight assembly through the corresponding output port.

[0064] In summary, the present invention discloses a headlight control channel expansion system and method, which can allow users to flexibly splice drive modules according to needs and support a variety of lighting configurations by adding a first socket 12 on the controller component to cooperate with a hard-wire interface input component 20 to form a hard-wire signal acquisition input port expansion area, adding a second socket 13 to cooperate with a cross-flow channel drive component 30 to form a cross-flow channel expansion area, adding a third socket 14 to cooperate with an output control pin component 40 to form an output control pin expansion area, and adding a fourth socket 15 to cooperate with a memory component 50 to form a memory expansion area. The user can also select multiple channels according to project needs. This design greatly improves the adaptability of the system. The plug-in design of the hard-wire signal acquisition input port expansion area is introduced on the controller main board 10, and the user can freely add or delete the signal input module; and the signal input module also has an automatic identification function, which simplifies the system configuration and improves the convenience; and by managing the expanded output channel and the expanded input hard-wire level signal in a table association manner, and sending the corresponding drive function instructions to the corresponding cross-flow channel drive component 30 through the module configuration file (parameter configuration table), the degree of freedom can be further increased; by using the comparison and verification of configuration parameters and software parameters, the self-check of the channel and interface can be completed before turning on the light (that is, before the controller main board 10 is powered on), which plays a role in reducing risks. Moreover, in the present invention, through the modular plug-in design of the entire system, users can freely combine according to actual project requirements, effectively reduce development costs, and improve project implementation efficiency and flexibility; the present invention also realizes higher channel scalability, and users can easily add new functions to adapt to future changes in demand; and through the optimized module design, users can reduce complex line connections, improve the reliability of the system and the convenience of subsequent maintenance. Therefore, the present invention effectively overcomes the various shortcomings in the prior art and has a high industrial utilization value.

[0065] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A headlight control channel expansion system, characterized in that: include: A controller mainboard, a hard-wire interface input assembly, several expandable cross-flow channel drive assemblies, and an output control pin assembly; The controller mainboard includes a first socket, a second socket and a third socket; The hard-wire interface input component is inserted into the first socket, and includes a plurality of expandable hard-wire input ports and hard-wire output ports, wherein the hard-wire input port is connected to the vehicle signal harness, and the hard-wire output port is connected to the controller mainboard, and is used to collect hard-wire level signals from the hard-wire input port, and send the hard-wire level signals to the processor of the controller mainboard through the hard-wire output port; The processor is used to generate corresponding driving function instructions according to the hard-line level signal and the parameter configuration table, and send the instructions to the cross-flow channel driving component; The cross-flow channel driving component is inserted into the second socket, the cross-flow channel driving component is communicatively connected with the processor, and the cross-flow channel driving component is connected with the power supply component on the controller mainboard, and is used for converting the current obtained from the power supply component into the driving current corresponding to the driving function instruction through the corresponding cross-flow channel driving component according to the driving function instruction, and sending it to the output control pin component; The output control pin component is inserted into the third socket, including a signal input end and a plurality of expandable output ports. The cross-current channel driving component is connected to the signal input end, and the output port is connected to the headlight assembly, and is used to output the driving current corresponding to the driving function instruction obtained from the signal input end to the headlight assembly through the corresponding output port.

2. The headlight control channel expansion system according to claim 1, characterized in that: After the controller mainboard is powered on, the processor performs pin validity verification on each of the hard-wire input ports of the hard-wire interface input component to obtain a first verification result; when the first verification result is a pin signal error, a fault alarm is issued and an abnormal signal is fed back.

3. The headlight control channel expansion system according to claim 1, characterized in that: After the controller mainboard is powered on, the processor performs a validity check on the cross-flow channel drive component to obtain a second check result; when the second check result indicates that there is a fault in the cross-flow channel drive component, the corresponding fault of the cross-flow channel drive component is fed back.

4. The headlight control channel expansion system according to claim 1, characterized in that: After the controller mainboard is powered on, the processor performs pin validity verification on each signal input end of the output control pin component to obtain a third verification result; when the third verification result is a pin signal error, a fault alarm is issued and an abnormal signal is fed back.

5. The headlight control channel expansion system according to claim 1, characterized in that: The pins of the second socket and the pins of the third socket are connected in a one-to-one correspondence on the controller mainboard.

6. The headlight control channel expansion system according to claim 1, characterized in that: The processor receives the preset driving function instruction and correspondingly modifies the configuration parameters in the parameter configuration table of the processor to update the parameter configuration table.

7. The headlight control channel expansion system according to claim 6, characterized in that: The configuration parameters in the parameter configuration table include function light information, signal channel information, and corresponding selection information of the function light information and the signal channel information corresponding to the driving function instruction.

8. The headlight control channel expansion system according to claim 7, characterized in that: The corresponding selection information of the function light information and the signal channel information corresponding to the driving function instruction includes first corresponding selection information between a single function light information and a single signal channel information, second corresponding selection information between multiple function light information and a single signal channel information, and third corresponding selection information between a single function light information and multiple signal channel information.

9. The headlight control channel expansion system according to claim 1, characterized in that: The headlight control channel expansion system also includes a memory component for storing light show script data; The controller mainboard further comprises a fourth socket, and the memory component is inserted into the fourth socket; The processor is also used to generate a driving function instruction for the corresponding cross-flow channel driving group according to the light show instruction and the light show script data, and send it to the cross-flow channel driving group; The cross-current channel driving component is also used to convert the current obtained from the power supply component into a light show driving current corresponding to the driving function instruction through the corresponding cross-current channel driving component according to the driving function instruction, and send it to the output control pin component; The output control pin assembly is also used to obtain the light show driving current from the signal input end and output it to the headlight assembly through the corresponding output port.

10. A headlight control channel expansion method, characterized in that: include: By inserting a hard-wire interface input component into a first socket of a controller mainboard, connecting several expandable hard-wire input ports of the hard-wire interface input component to a vehicle signal harness, connecting a hard-wire output port of the hard-wire interface input component to the controller mainboard, collecting a hard-wire level signal from the expanded hard-wire input port, and sending the hard-wire level signal to a processor of the controller mainboard through the hard-wire output port; Generate corresponding driving function instructions through the processor according to the hard-line level signal and the parameter configuration table, and send them to the cross-flow channel driving component; By inserting a plurality of expandable cross-flow channel drive components into the second socket, the cross-flow channel drive component is communicatively connected with the processor, and the cross-flow channel drive component is connected with the power supply component on the controller mainboard, according to the drive function instruction, the current obtained from the power supply component is converted into the drive current corresponding to the drive function instruction through the corresponding cross-flow channel drive component, and sent to the output control pin component; By inserting the output control pin component into the third socket, connecting the cross-flow channel drive component to the signal input end of the output control pin component, and connecting several expandable output ports of the output control pin component to the headlight component, the drive current corresponding to the drive function instruction obtained from the signal input end is output to the headlight assembly through the corresponding output port.

Images