CN114554658A - Brightness adjusting system of vehicle brake lamp and vehicle - Google Patents

Abstract

The present invention provides a system for adjusting the brightness of a vehicle brake light and a vehicle, wherein the system includes: an ADAS module for acquiring the environmental information of the vehicle, the position information of the vehicle and the vehicle speed information; the BCM module, which is connected to the ADAS module and uses To obtain the corresponding LIN message information according to the environmental information of the vehicle, the position information of the vehicle and the vehicle speed information; the control module is connected to the BCM module to generate the corresponding power-on command and brightness adjustment command according to the LIN message information; power-on The module is connected to the control module and the drive module respectively, and is used to power on the drive module according to the power-on command; the drive module is also connected to the control module, and the drive module is used to light the vehicle brake lights after power-on and adjust the brightness according to the brightness. The instruction adjusts the brightness of the vehicle brake lights so that the brightness of the vehicle brake lights reaches the preset brightness. Therefore, when the vehicle brakes, the brightness of the brake light can be effectively reduced, thereby greatly improving the driving safety.

Description

Dimming system for vehicle brake lights and vehicle

technical field

The invention relates to the technical field of vehicles, in particular to a system for adjusting the brightness of a vehicle brake light and a vehicle.

Background technique

With the continuous improvement of people's living standards, cars have become more and more means of transportation for ordinary families, but at the same time, the incidence of traffic accidents is rising.

In the related art, the brightness of the brake lights of the vehicle is generally fixed. Therefore, when braking at night, if the distance between the front and rear vehicles is relatively close, the driver of the vehicle behind will feel dazzling when the vehicle in front is braking. In severe cases, the vision of the driver behind the vehicle will be affected, resulting in a traffic accident.

SUMMARY OF THE INVENTION

In order to solve the above technical problems, the present invention provides a brightness adjustment system for vehicle brake lights, which can effectively reduce the brightness of the brake lights when the vehicle brakes, thereby greatly improving driving safety.

The technical scheme adopted in the present invention is as follows:

A system for adjusting the brightness of vehicle brake lights, comprising: an ADAS module, a BCM module, a control module, a power-on module and a drive module; wherein the ADAS module is used to obtain vehicle environmental information, vehicle location information and vehicle speed information; the BCM module It is connected to the ADAS module to obtain the corresponding LIN message information according to the vehicle's environmental information, vehicle position information and vehicle speed information; the control module is connected to the BCM module to generate the corresponding power-on command and brightness according to the LIN message information. The power-on module is connected with the control module and the drive module respectively, and is used to power on the drive module according to the power-on command; the drive module is also connected with the control module, and the drive module is used to light the vehicle brake lights after power-on. The brightness of the vehicle brake lights is adjusted according to the brightness adjustment instruction, so that the brightness of the vehicle brake lights reaches the preset brightness.

The system for adjusting the brightness of vehicle brake lights further includes: a LIN transceiver, wherein one end of the LIN transceiver is connected to the BCM module through a LIN bus, and the other end of the LIN transceiver is connected to the control module through a UART bus .

The LIN transceiver includes a LIN transceiver chip whose model is TJA1028.

The control module is connected with the drive module through the IIC bus.

The control module includes a control chip whose model is KEA128.

The drive module includes a drive chip with a model of E522.48.

A vehicle includes the above-mentioned brightness adjustment system for vehicle brake lights.

Beneficial effects of the present invention:

When the vehicle brakes, the present invention can effectively reduce the brightness of the brake light, thereby greatly improving the driving safety.

Description of drawings

1 is a schematic block diagram of a system for adjusting the brightness of a vehicle brake light according to an embodiment of the present invention;

2 is a schematic block diagram of a system for adjusting the brightness of a vehicle brake light according to an embodiment of the present invention;

3 is a schematic structural diagram of a LIN transceiver according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a control module according to an embodiment of the present invention.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

FIG. 1 is a schematic block diagram of a brightness adjustment system for a vehicle brake light according to an embodiment of the present invention.

As shown in FIG. 1 , the brightness adjustment system of the vehicle brake light according to the embodiment of the present invention may include: an ADAS (Advanced Driving Assistance System, advanced driving assistance system) module 100, a BCM (Body Control Module, body control module) module 200, a control module 300 , power-on module 400 and drive module 500 .

Among them, the ADAS module 100 is used to obtain the environmental information of the vehicle, the position information of the vehicle and the vehicle speed information; the BCM module 200 is connected with the ADAS module 100 to obtain the corresponding LIN report according to the environmental information of the vehicle, the position information of the vehicle and the vehicle speed information. The control module 300 is connected with the BCM module 200 to generate corresponding power-on commands and brightness adjustment commands according to the LIN message information; Instruct the drive module 500 to power on; the drive module 500 is also connected to the control module 300, and the drive module 500 is used to turn on the vehicle brake lights after power-on, and adjust the brightness of the vehicle brake lights according to the brightness adjustment instruction, so that the vehicle The brightness of the brake lights reaches the preset brightness.

According to an embodiment of the present invention, as shown in FIG. 2 , the system for adjusting the brightness of vehicle brake lights may further include a LIN (Local Interconnect Network) transceiver 600, wherein one end of the LIN transceiver 600 passes through a LIN bus. Connected to the BCM module 200, the other end of the LIN transceiver 600 is connected to the control module 300 through a UART (Universal Asynchronous Receiver/Transmitter, Universal Asynchronous Receiver/Transmitter) bus.

The LIN transceiver 600 includes a LIN transceiver chip with a model of TJA1028; the control module 300 includes a control chip with a model of KEA128.

Specifically, as shown in FIG. 3, the LIN transceiver 600 may include a LIN transceiver chip (TJA1028) and its corresponding peripheral circuits; as shown in FIG. 4, the control module 300 may include a control chip (KEA128) and its corresponding peripheral circuits circuit. Among them, the 51-pin (TXD) of the control chip is connected with the 5-pin (RXD) of the LIN transceiver chip; the 52-pin (RXD) of the control chip is connected with the 6-pin (TXD) of the LIN transceiver chip; the 55-pin (RSTN) of the control chip Connect to pin 7 (RSTN) of the LIN transceiver chip.

According to an embodiment of the present invention, the control module 300 is connected to the driving module 500 through an IIC bus. The driving module 500 includes a driving chip whose model is E522.48. Specifically, pin 16 (PTE6) of the control chip in the control module 300 can be connected to the driving chip of the driving module 500 through an IIC (Inter-Integrated Circuit, I2C bus) bus.

Specifically, based on the brightness adjustment system of the vehicle brake light in the above-mentioned embodiment, during the operation of the vehicle, the ADAS module 100 can collect the environmental information of the vehicle, the position information of the vehicle and the vehicle speed information in real time, and the collected information of the vehicle The environmental information, the position information of the vehicle and the vehicle speed information are sent to the BCM module 200 . After the BCM module 200 receives the environmental information of the vehicle, the location information of the vehicle and the vehicle speed information, it can convert the environmental information of the vehicle, the location information of the vehicle and the vehicle speed information into the corresponding LIN message information, and pass the LIN message information through The LIN bus is sent to the LIN transceiver 600 . At this time, the LIN transceiver 600 can send the LIN message information to the control module 300 through the UART bus. The control module 300 reads the LIN message information and parses it. If it is determined after the analysis that the brake lights of the vehicle need to be turned on, for example, the current environment information of the vehicle is that there is a traffic light ahead and needs to stop and wait, or the current road is congested and needs to stop and wait, Then, a power-on command is sent to the power-on module 400 to control the power-on module 400 to power on the drive module 500 . Wherein, as a possible implementation, the power-on module 400 may include a power supply and a first switch, the first switches are respectively connected with the power supply and the drive module 500, and the first switch is closed after receiving the power-on command to control the power-on The electrical module 400 powers on the driving module 500 . Wherein, the driving module 500 can turn on the brake lights of the vehicle after being powered on.

It should be noted that when the control module 300 sends the power-on command, it also needs to determine whether the brightness of the vehicle brake lights needs to be adjusted according to the LIN message information. The distance between the vehicles is less than a preset distance (for example, less than 3m), or the vehicle is driving in a congested road section and the vehicle speed is 0, or the vehicle is driving at a red light intersection and the vehicle speed is 0, then send a brightness adjustment command to the drive module 500. After receiving the brightness adjustment instruction, the driving module 500 can reduce the driving current to reduce the brightness of the vehicle brake lights, and make the brightness of the vehicle brake lights reach the preset brightness, that is, the minimum brightness of the vehicle brake lights stipulated by law. In this way, the brightness of the brake light can be effectively reduced, so as to avoid affecting the line of sight of the driver of the vehicle behind, thereby greatly improving the safety of driving.

To sum up, according to the brightness adjustment system of the vehicle brake light according to the embodiment of the present invention, the environmental information of the vehicle, the position information and the speed information of the vehicle are obtained through the ADAS module, and the BCM module is connected with the ADAS module to obtain the environmental information of the vehicle according to the environmental information of the vehicle. , vehicle position information and vehicle speed information to obtain the corresponding LIN message information, and connect with the BCM module through the control module to generate the corresponding power-on command and brightness adjustment command according to the LIN message information, and respectively communicate with the control module through the power-on module It is connected to the drive module to power on the drive module according to the power-on command, and is connected to the control module through the drive module to turn on the vehicle brake lights after power-on, and adjust the brightness of the vehicle brake lights according to the brightness adjustment command to Brings the brightness of the vehicle's brake lights to the preset brightness. Therefore, when the vehicle brakes, the brightness of the brake light can be effectively reduced, thereby greatly improving the driving safety.

In addition, an embodiment of the present invention also provides a vehicle, which includes the above-mentioned system for adjusting the brightness of a brake light of a vehicle.

According to the vehicle of the embodiment of the present invention, through the above-mentioned vehicle brake light brightness adjustment system, when the vehicle brakes, the brightness of the brake light can be effectively reduced, thereby greatly improving the driving safety.

In the description of the present invention, the terms "first" and "second" are only used for the purpose of description, and cannot be understood as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature defined as "first" or "second" may expressly or implicitly include one or more of that feature. "Plurality" means two or more, unless expressly specifically limited otherwise.

In the present invention, unless otherwise expressly specified and limited, the terms "installed", "connected", "connected", "fixed" and other terms should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection , or integrated; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of the two elements or the interaction relationship between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

In the present invention, unless otherwise expressly specified and limited, a first feature "on" or "under" a second feature may be in direct contact between the first and second features, or the first and second features indirectly through an intermediary touch. Also, the first feature being "above", "over" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is level higher than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature has a lower level than the second feature.

In the description of this specification, description with reference to the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples", etc., mean specific features described in connection with the embodiment or example , structure, material or feature is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, those skilled in the art may combine and combine the different embodiments or examples described in this specification, as well as the features of the different embodiments or examples, without conflicting each other.

Any description of a process or method in the flowcharts or otherwise described herein may be understood to represent a module, segment or portion of code comprising one or more executable instructions for implementing a specified logical function or step of the process , and the scope of the preferred embodiments of the invention includes alternative implementations in which the functions may be performed out of the order shown or discussed, including performing the functions substantially concurrently or in the reverse order depending upon the functions involved, which should It is understood by those skilled in the art to which the embodiments of the present invention belong.

The logic and/or steps represented in flowcharts or otherwise described herein, for example, may be considered an ordered listing of executable instructions for implementing the logical functions, may be embodied in any computer-readable medium, For use with, or in conjunction with, an instruction execution system, apparatus, or device (such as a computer-based system, a system including a processor, or other system that can fetch instructions from and execute instructions from an instruction execution system, apparatus, or apparatus) or equipment. For the purposes of this specification, a "computer-readable medium" can be any device that can contain, store, communicate, propagate, or transport the program for use by or in conjunction with an instruction execution system, apparatus, or apparatus. More specific examples (non-exhaustive list) of computer readable media include the following: electrical connections with one or more wiring (electronic devices), portable computer disk cartridges (magnetic devices), random access memory (RAM), Read Only Memory (ROM), Erasable Editable Read Only Memory (EPROM or Flash Memory), Fiber Optic Devices, and Portable Compact Disc Read Only Memory (CDROM). In addition, the computer readable medium may even be paper or other suitable medium on which the program may be printed, as it may be possible, for example, by optically scanning the paper or other medium, followed by editing, interpretation or other suitable medium as necessary process to obtain the program electronically and then store it in computer memory.

It should be understood that various parts of the present invention may be implemented in hardware, software, firmware or a combination thereof. In the above-described embodiments, various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, it can be implemented by any one or a combination of the following techniques known in the art: Discrete logic circuits, application specific integrated circuits with suitable combinational logic gates, Programmable Gate Arrays (PGA), Field Programmable Gate Arrays (FPGA), etc.

Those skilled in the art can understand that all or part of the steps carried by the methods of the above embodiments can be completed by instructing the relevant hardware through a program, and the program can be stored in a computer-readable storage medium, and the program is stored in a computer-readable storage medium. When executed, one or a combination of the steps of the method embodiment is included.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing module, or each unit may exist physically alone, or two or more units may be integrated into one module. The above-mentioned integrated modules can be implemented in the form of hardware, and can also be implemented in the form of software function modules. If the integrated modules are implemented in the form of software functional modules and sold or used as independent products, they may also be stored in a computer-readable storage medium.

The above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, and the like. Although the embodiments of the present invention have been shown and described above, it should be understood that the above-mentioned embodiments are exemplary and should not be construed as limiting the present invention. Embodiments are subject to variations, modifications, substitutions and variations.

Claims (7)

1. a brightness adjustment system of vehicle brake light, is characterized in that, comprises: ADAS module, BCM module, control module, power-on module and drive module; Wherein, The ADAS module is used to obtain the environmental information of the vehicle, the location information of the vehicle and the vehicle speed information; The BCM module is connected to the ADAS module, and is used to obtain corresponding LIN message information according to the environmental information of the vehicle, the position information of the vehicle and the vehicle speed information; The control module is connected with the BCM module to generate a corresponding power-on command and a brightness adjustment command according to the LIN message information; The power-on module is respectively connected with the control module and the drive module, and is used to power on the drive module according to the power-on command; The drive module is also connected to the control module, and the drive module is used to light the vehicle brake lights after power-on, and adjust the brightness of the vehicle brake lights according to the brightness adjustment instruction, so that the The brightness of the vehicle brake light reaches a preset brightness. 2. The system for adjusting the brightness of vehicle brake lights according to claim 1, further comprising: a LIN transceiver, wherein one end of the LIN transceiver is connected to the BCM module through a LIN bus, and the LIN The other end of the transceiver is connected with the control module through the UART bus. 3 . The system for adjusting the brightness of a vehicle brake light according to claim 2 , wherein the LIN transceiver comprises a LIN transceiver chip whose model is TJA1028. 4 . 4 . The brightness adjustment system for vehicle brake lights according to claim 1 , wherein the control module is connected to the drive module through an IIC bus. 5 . 5 . The brightness adjustment system for vehicle brake lights according to claim 4 , wherein the control module comprises a control chip with a model of KEA128. 6 . 6 . The brightness adjustment system for a vehicle brake light according to claim 4 , wherein the driving module comprises a driving chip whose model is E522.48. 7 . 7. A vehicle, characterized by comprising the brightness adjustment system for a vehicle brake light according to any one of claims 1-6.

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