A lane keeping and headlight linkage method and system

Abstract

The application belongs to the technical field of vehicle driving assistance, and discloses a lane keeping and headlamp linkage method and system. The method comprises the following steps: triggering the whole vehicle to be in a running working condition; confirming a precondition, i.e., signal reading between a headlamp steering module and a lane keeping module, and performing handshake operation of the headlamp steering module and the lane keeping module; collecting vehicle speed and an actual steering angle to calculate a target steering angle of the vehicle; judging whether a comparison deviation value of the target steering angle and the actual steering angle is within a preset deviation value range; if the comparison deviation value is within the preset deviation value range, obtaining a headlamp torque signal value according to the comparison deviation value to perform headlamp steering operation. The method can solve the problem that existing adaptive headlamps cannot make a quick response in a specific scene, thereby causing the headlamp steering to lag behind driving.

Description

Technical Field

[0001] The present invention belongs to the technical field of vehicle driving assistance, and in particular relates to a lane keeping and headlight linkage method and system. Background Art

[0002] With the continuous advancement of automotive technology, users' demands for intelligent vehicles are also increasing. While meeting basic customer needs, more features are being developed to enhance safety, convenience, and intelligence. Traditional models do not feature adaptive headlights. Adding adaptive headlights improves nighttime safety and comfort. Generally, adaptive headlights adjust headlight direction by collecting data from the vehicle's powertrain and combining it with its own module algorithms. However, this method cannot react quickly in certain scenarios, resulting in the headlights lagging behind the vehicle's direction of movement. Summary of the Invention

[0003] Based on this, the present application proposes a lane keeping and headlight linkage method and system, which aims to solve the problem that the existing adaptive headlights cannot respond quickly in specific scenarios, resulting in the headlight steering lagging behind the driving vehicle.

[0004] A first aspect of the present application provides a lane keeping and headlight linkage method, the method comprising:

[0005] Trigger the vehicle into operating condition;

[0006] Based on the operating condition, confirming a precondition, the precondition comprising: maintaining signal reading between the headlight steering module and the lane keeping module, and performing a handshake operation between the headlight steering module and the lane keeping module;

[0007] Based on the precondition, collecting the vehicle speed and the actual steering angle, calculating the vehicle's target steering angle based on the vehicle speed and the actual steering angle, determining whether a comparison deviation between the target steering angle and the actual steering angle is within a preset deviation range, and if the comparison deviation is within the preset deviation range, obtaining a headlight torque signal value based on the comparison deviation;

[0008] A headlight steering operation is performed according to the headlight torque signal value.

[0009] Compared with the prior art, the present application provides a lane keeping and headlight linkage method, which first ensures that the vehicle is in a driving state so as to perform subsequent lane keeping and headlight linkage operations; confirms the preconditions, including maintaining the signal reading between the headlight steering module and the lane keeping module, and performing a handshake operation between the headlight steering module and the lane keeping module, which ensures the communication and collaborative work between the two modules and provides a basis for subsequent precise control; obtains the vehicle's speed and actual steering angle in real time, and these data will be used to calculate the vehicle's target steering angle; calculates the vehicle's target steering angle through a specific algorithm based on the vehicle's speed and actual steering angle, which enables the vehicle to The system automatically adjusts steering based on the current driving situation and the driver's intention to maintain the vehicle's lane. The calculated target steering angle is compared with the actual steering angle to determine whether the deviation is within a preset range. This ensures the accuracy and safety of steering operations. Based on the magnitude and direction of the deviation, a corresponding headlight torque signal is generated. This signal is transmitted to the headlight steering module, which adjusts the headlight steering angle to provide better lighting. Based on the headlight torque signal, the headlight steering module adjusts the headlight steering angle accordingly, achieving a coordinated lane-keeping and headlight operation. This helps drivers better see the road at night and improves driving safety. In summary, this technical solution automatically calculates the target steering angle by monitoring vehicle status, steering angle, and speed in real time. It then adjusts the headlight torque signal based on the deviation, achieving a coordinated lane-keeping and headlight operation. This addresses the problem of existing adaptive headlights failing to react quickly in certain scenarios, resulting in the headlight steering lagging behind the vehicle.

[0010] As an optional implementation manner of the first aspect, the step of executing a handshake operation between the headlight steering module and the lane keeping module includes:

[0011] Verify and compare the version information of the headlight steering module and lane keeping module;

[0012] If the comparison results are consistent, the handshake operation is successful;

[0013] If the comparison results are inconsistent, the handshake operation is unsuccessful.

[0014] As an optional implementation manner of the first aspect, the step of verifying and comparing version information of the headlight steering module and the lane keeping module includes:

[0015] Read the software version number and hardware version number of the headlight module and lane keeping module;

[0016] Query the software version number and hardware version number of the corresponding headlight steering module and lane keeping module from the preset vehicle model information library;

[0017] Compare the queried software version number and hardware version number with the actual read software version number and hardware version number one by one.

[0018] As an optional implementation manner of the first aspect, the precondition further includes:

[0019] A signal communication model is established between the headlight steering module and the lane keeping module. When the vehicle is offline, the signal communication model is adapted into the vehicle's operating program for executing lane keeping and headlight linkage.

[0020] As an optional implementation manner of the first aspect, the step of collecting the actual steering angle includes:

[0021] Light calibration is performed on each torque value output by the lane keeping module to record the angle at which the light centerline corresponding to each torque value deviates from the vehicle centerline, and the angle is regarded as the actual steering angle.

[0022] As an optional implementation manner of the first aspect, the step of obtaining a headlight torque signal value according to the comparison deviation value includes:

[0023] According to the correspondence table between the preset deviation value range and the headlight torque signal value, the headlight torque signal value corresponding to the comparison deviation value is found.

[0024] As an optional implementation manner of the first aspect, determining whether a comparison deviation value between the target steering angle and the actual steering angle is within a preset deviation value range, and if the comparison deviation value is within the preset deviation value range, obtaining a headlight torque signal value based on the comparison deviation value further includes:

[0025] If the comparison deviation value is not within the preset deviation value range, the lane keeping module issues a warning and exits.

[0026] A second aspect of an embodiment of the present application provides a lane keeping and headlight linkage system, the system comprising:

[0027] The vehicle start module is used to trigger the vehicle to enter the running state;

[0028] a communication confirmation module, configured to confirm a precondition based on the operating condition, the precondition comprising: maintaining signal reading between the headlight steering module and the lane keeping module, and executing a handshake operation between the headlight steering module and the lane keeping module;

[0029] a lane keeping module, configured to collect a vehicle speed and an actual steering angle based on the precondition, calculate a target steering angle of the vehicle based on the vehicle speed and the actual steering angle, determine whether a deviation value between the target steering angle and the actual steering angle is within a preset deviation value range, and if the deviation value is within the preset deviation value range, obtain a headlight torque signal value based on the deviation value;

[0030] A headlight steering module is used to perform a headlight steering operation according to the headlight torque signal value.

[0031] A third aspect of an embodiment of the present application provides a vehicle, comprising a memory, a processor, and a processing program stored on the memory and executable on the processor, wherein the processing program, when executed by the processor, implements the above-mentioned lane keeping and headlight linkage method.

[0032] A fourth aspect of an embodiment of the present application provides a storage medium having a processing program stored thereon, and when the processing program is executed by a processor, the above-mentioned lane keeping and headlight linkage method is executed.

[0033] Additional aspects and advantages of the present application will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the embodiments of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 This is a flow chart of a lane keeping and headlight linkage method proposed in the first embodiment of the present application;

[0035] Figure 2 This is a flow chart of a lane keeping and headlight linkage method proposed in the second embodiment of the present application;

[0036] Figure 3 This is a structural diagram of a lane keeping and headlight linkage system proposed in the third embodiment of the present application.

[0037] The following specific implementation methods will further illustrate the present application in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0039] The terms "first," "second," and the like in the specification and claims of this application are used to distinguish similar objects and are not used to describe a particular order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate so that the embodiments of this application can be implemented in an order other than those illustrated or described herein. In addition, the term "and / or" in the specification and claims refers to at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0040] In order to illustrate the technical solution described in this application, specific embodiments are provided below.

[0041] Example 1

[0042] See also Figure 1 , is a flow chart of a lane keeping and headlight linkage method proposed in the first embodiment of the present application, the proposed method includes:

[0043] S01: Trigger the vehicle to be in operating condition.

[0044] In this step, the determination can be made by detecting the vehicle's ignition status, engine speed, vehicle speed, etc. For example, when it is detected that the vehicle's ignition switch is on, the engine speed is greater than a preset value, and the vehicle speed is greater than 0, it can be determined that the vehicle is in the operating condition.

[0045] S02: Based on the operating condition, confirming preconditions, the preconditions including: maintaining signal reading between the headlight steering module and the lane keeping module, and executing a handshake operation between the headlight steering module and the lane keeping module;

[0046] This step is used to ensure that the lane keeping and headlight linkage functions can work properly. Specifically, the preconditions include:

[0047] 1. Signal Reading: The lane keeping module and the light steering module establish stable signal communication and can read each other's signals. For example, the lane keeping module can read the current steering angle signal sent by the light steering module, and the light steering module can read the target steering angle signal sent by the lane keeping module.

[0048] 2. Handshake operation: The lane keeping module and the light steering module perform a handshake operation to ensure that the two versions are compatible and function normally. The specific steps are as follows:

[0049] Read the software version number and hardware version number of the headlight steering module and lane keeping module;

[0050] Query the software version number and hardware version number of the corresponding headlight steering module and lane keeping module from the preset vehicle model information library;

[0051] Compare the queried software version number and hardware version number with the actual read software version number and hardware version number one by one;

[0052] If the comparison results are consistent, the handshake operation is successful;

[0053] If the comparison results are inconsistent, the handshake operation is unsuccessful and the system will not be able to activate the lane keeping and headlight linkage functions.

[0054] 3. Signal Communication Model: A signal communication model is established between the headlight steering module and the lane keeping module. This model defines parameters such as the signal type, data format, and transmission rate used in communication between the two. When the vehicle is offline, this signal communication model is adapted into the vehicle's operating program for lane keeping and headlight linkage, ensuring that vehicles of different models and configurations can function properly.

[0055] S03: Based on the preconditions, the vehicle speed and actual steering angle are collected, the target steering angle of the vehicle is calculated according to the vehicle speed and the actual steering angle, and it is determined whether a comparison deviation value between the target steering angle and the actual steering angle is within a preset deviation value range; if the comparison deviation value is within the preset deviation value range, the headlight torque signal value is obtained according to the comparison deviation value.

[0056] In this step, the lane keeping module first uses sensors (such as cameras and radar) to collect the vehicle's speed and actual steering angle. The actual steering angle can be obtained by performing light calibration on each torque value output by the lane keeping module. This involves recording the angle by which the light's centerline deviates from the vehicle's centerline for each torque value, and using this angle as the actual steering angle.

[0057] Secondly, the lane keeping module calculates the vehicle's target steering angle based on the collected vehicle speed and actual steering angle, combined with the pre-set control strategy, that is, the steering angle that the steering wheel should maintain when the vehicle is driving in the current lane.

[0058] Finally, the calculated target steering angle is compared with the actual steering angle to obtain a comparison deviation value.

[0059] S04: Execute a headlight steering operation according to the headlight torque signal value.

[0060] Specifically, if the comparison deviation value is within the preset deviation value range, the corresponding headlight torque signal value is found according to the comparison deviation value and the preset correspondence table, and the signal value is sent to the light steering module to control the headlight to perform a steering operation.

[0061] If the comparison deviation value is not within the preset deviation value range, it means that the vehicle may be in an abnormal driving state (such as the driver actively turning sharply, the vehicle skidding, etc.). At this time, the lane keeping module will issue an early warning and exit the lane keeping and headlight linkage function to ensure driving safety.

[0062] In some embodiments, the vehicle lamp torque signal value is represented in a four-bit code format, and the specific structure is as follows:

[0063] The first bit (direction code) indicates the direction the headlights are turning. For example, 0 indicates the headlights are turning left, and 1 indicates the headlights are turning right.

[0064] The last three digits (torque value) indicate the torque value for the headlights, indicating the amount of torque to be applied to the headlights (or steering system). For example, 000 means the headlights do not steer; 001-999 means the headlights steer in the corresponding direction with varying degrees of force. The larger the value, the greater the torque.

[0065] In summary, the method first ensures that the vehicle is in a driving state so that subsequent lane keeping and headlight linkage operations can be performed; confirms the preconditions, including maintaining signal reading between the headlight steering module and the lane keeping module, and performing a handshake operation between the headlight steering module and the lane keeping module, which ensures communication and collaborative work between the two modules and provides a basis for subsequent precise control; obtains the vehicle's speed and actual steering angle in real time, and these data will be used to calculate the vehicle's target steering angle; calculates the vehicle's target steering angle through a specific algorithm based on the vehicle's speed and actual steering angle, which enables the vehicle to adjust the steering angle based on the current driving conditions and the driver's The system automatically adjusts steering according to the vehicle's intention to maintain the vehicle's lane. It compares the calculated target steering angle with the actual steering angle to determine whether the deviation is within a preset range. This ensures the accuracy and safety of steering operations. Based on the magnitude and direction of the deviation, it generates a corresponding headlight torque signal value, which is transmitted to the headlight steering module to adjust the headlight steering angle for better lighting. Based on the headlight torque signal value, the headlight steering module adjusts the headlight steering angle accordingly, achieving a coordinated effect between lane keeping and headlights. This helps drivers better see the road at night and improves driving safety. In summary, this technical solution automatically calculates the target steering angle by real-time monitoring of vehicle status, steering angle, and speed, and adjusts the headlight torque signal value based on the deviation value. This achieves a coordinated effect between lane keeping and headlights, resolving the problem of existing adaptive headlights failing to react quickly in certain scenarios, resulting in the headlight steering lagging behind the vehicle.

[0066] Example 2

[0067] See also Figure 2, as shown in the flow chart of a lane keeping and headlight linkage method according to a second embodiment of the application, the method steps include:

[0068] S001: The driver presses the start button, and the vehicle starting module receives the start signal and activates the entire system;

[0069] S002: The communication confirmation module reads the software version number and hardware version number of the headlight steering module and the lane keeping module;

[0070] S003: The communication confirmation module queries the corresponding software version number and hardware version number from the preset vehicle model information library, and compares them with the actual read version information;

[0071] S004: If the version information is consistent, the communication confirmation module performs a handshake operation, sends and receives specific handshake signals to confirm that the signal reading is normal;

[0072] S005: Collect the vehicle speed data and the actual steering angle of the vehicle through the sensor;

[0073] S006: According to the collected vehicle speed and actual steering angle data, the target steering angle of the vehicle is calculated by combining the preset algorithm model;

[0074] S007: Compare the calculated target steering angle with the actual steering angle, calculate the comparison deviation value, and determine whether the comparison deviation value is within the preset deviation value range. If the comparison deviation value is within the preset range, the lane keeping module looks up the preset corresponding relationship table according to the comparison deviation value to generate a corresponding headlight torque signal value;

[0075] S008: Receive the headlight torque signal value provided by the lane keeping module, and according to the headlight torque signal value, the headlight steering module performs the corresponding steering operation to make the illumination direction of the headlight consistent with the driving direction of the vehicle.

[0076] Embodiment 3

[0077] Please refer to Figure 3 , as shown in the structural schematic diagram of a lane keeping and headlight linkage system according to a third embodiment of the application, the system includes:

[0078] The vehicle starting module 10 is used to trigger the vehicle to be in a running condition;

[0079] The main function of this module is to detect and confirm the running state of the vehicle. It triggers the vehicle to be in a running condition, ensuring that other modules of the system can work cooperatively when the vehicle is driving normally. The effectiveness of this module directly affects the start and function execution of the subsequent modules, ensuring that the system can respond to changes in the driving environment in a timely manner after the vehicle starts.

[0080] a communication confirmation module 20, configured to confirm preconditions based on the operating conditions, the preconditions including: maintaining signal reading between the headlight steering module and the lane keeping module, and executing a handshake operation between the headlight steering module and the lane keeping module;

[0081] This module is responsible for confirming the communication status between various modules while the vehicle is in operation. It ensures that signals between the lane keeping module and the headlight steering module are reading correctly and performs handshake operations to establish a reliable communication link. This process is the foundation for stable system operation, ensuring accurate and real-time data transmission, thereby providing reliable information support for subsequent decision-making.

[0082] a lane keeping module 30 configured to collect a vehicle speed and an actual steering angle based on the precondition, calculate a target steering angle of the vehicle based on the vehicle speed and the actual steering angle, determine whether a deviation between the target steering angle and the actual steering angle is within a preset deviation range, and if so, obtain a headlight torque signal value based on the deviation;

[0083] This module is the core of the system, responsible for real-time monitoring of the vehicle's driving status. It collects vehicle speed and actual steering angle data to calculate a target steering angle and compares it with the actual steering angle. By determining whether the deviation from this comparison is within a preset range, the module determines whether the vehicle has strayed from its lane. If the deviation is within the permitted range, the module generates a headlight torque signal, providing the necessary control signals to the headlight steering module, thereby enabling lane keeping and headlight activation to be linked.

[0084] The headlight steering module 40 is configured to execute a headlight steering operation according to the headlight torque signal value.

[0085] This module steers the headlights based on the headlight torque signal provided by the lane keeping module. By adjusting the headlight's direction, the module enhances the driver's visibility of the road, especially when turning or changing lanes, improving driving safety. The module's speed and accuracy are crucial to ensuring driving safety, effectively reducing the risk of accidents caused by poor visibility.

[0086] On the other hand, the present application also proposes a vehicle, which includes a memory, a processor, and a processing program stored in the memory and executable on the processor. When the processing program is executed by the processor, the above-mentioned lane keeping and headlight linkage method is implemented.

[0087] On the other hand, the present application further proposes a storage medium, on which a processing program is stored. When the processing program is run by a processor, the above-mentioned lane keeping and headlight linkage method is executed.

[0088] It should be noted that, in this article, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the statement "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element. In addition, it should be noted that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the opposite order according to the functions involved. For example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0089] Through the description of the above embodiments, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus the necessary general hardware platform. Of course, they can also be implemented by hardware, but in many cases the former is a more preferred embodiment. Based on this understanding, the technical solution of this application, or the part that contributes to the existing technology, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk), and includes a number of instructions for enabling a terminal (which can be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in each embodiment of this application.

[0090] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms without departing from the purpose of this application and the scope of protection of the claims, all of which are within the protection of this application.

Claims

1. A lane keeping and headlight linkage method, characterized in that: The method comprises: Trigger the vehicle into operating condition; Based on the operating condition, confirming a precondition, the precondition comprising: maintaining signal reading between the headlight steering module and the lane keeping module, and performing a handshake operation between the headlight steering module and the lane keeping module; Based on the precondition, the vehicle speed and actual steering angle are collected, and the step of collecting the actual steering angle includes: performing light calibration on each torque value output by the lane keeping module to record the angle at which the light centerline corresponding to each torque value deviates from the vehicle centerline, and treating the angle as the actual steering angle; calculating the target steering angle of the vehicle based on the vehicle speed and the actual steering angle, including: calculating the target steering angle of the vehicle based on the collected vehicle speed and actual steering angle in combination with a pre-set control strategy, that is, the steering angle that the steering wheel should maintain when the vehicle is traveling in the current lane; determining whether a comparison deviation value between the target steering angle and the actual steering angle is within a preset deviation value range, and if the comparison deviation value is within the preset deviation value range, obtaining a headlight torque signal value based on the comparison deviation value; A headlight steering operation is performed according to the headlight torque signal value.

2. The lane keeping and headlight linkage method according to claim 1, characterized in that: The step of executing the handshake operation between the headlight steering module and the lane keeping module includes: Verify and compare the version information of the headlight steering module and lane keeping module; If the comparison results are consistent, the handshake operation is successful; If the comparison results are inconsistent, the handshake operation is unsuccessful.

3. The lane keeping and headlight linkage method according to claim 2, characterized in that: The step of verifying and comparing the version information of the headlight steering module and the lane keeping module includes: Read the software version number and hardware version number of the headlight module and lane keeping module; Query the software version number and hardware version number of the corresponding headlight steering module and lane keeping module from the preset vehicle model information library; Compare the queried software version number and hardware version number with the actual read software version number and hardware version number one by one.

4. The lane keeping and headlight linkage method according to claim 1, characterized in that: The preconditions also include: A signal communication model is established between the headlight steering module and the lane keeping module. When the vehicle is offline, the signal communication model is adapted into the vehicle's operating program for executing lane keeping and headlight linkage.

5. The lane keeping and headlight linkage method according to claim 1, characterized in that: The step of obtaining the headlight torque signal value according to the comparison deviation value includes: According to the correspondence table between the preset deviation value range and the headlight torque signal value, the headlight torque signal value corresponding to the comparison deviation value is found.

6. The lane keeping and headlight linkage method according to claim 1, characterized in that: determining whether a comparison deviation between the target steering angle and the actual steering angle is within a preset deviation range, and if the comparison deviation is within the preset deviation range, obtaining a headlight torque signal value based on the comparison deviation, further comprising: If the comparison deviation value is not within the preset deviation value range, the lane keeping module issues a warning and exits.

7. A lane keeping and headlight linkage system, characterized in that: The system comprises: The vehicle start module is used to trigger the vehicle to enter the running state; a communication confirmation module, configured to confirm a precondition based on the operating condition, the precondition comprising: maintaining signal reading between the headlight steering module and the lane keeping module, and executing a handshake operation between the headlight steering module and the lane keeping module; a lane keeping module configured to collect a vehicle speed and an actual steering angle based on the preconditions, wherein the step of collecting the actual steering angle comprises: performing light calibration on each torque value output by the lane keeping module to record the angle at which the light centerline corresponding to each torque value deviates from the vehicle centerline, and treating the angle as the actual steering angle; calculating a target steering angle of the vehicle based on the vehicle speed and the actual steering angle, comprising: calculating a target steering angle of the vehicle, i.e., a steering angle that the steering wheel should maintain when the vehicle is traveling in a current lane, based on the collected vehicle speed and actual steering angle in combination with a pre-set control strategy; determining whether a comparison deviation between the target steering angle and the actual steering angle is within a preset deviation range, and if so, obtaining a headlight torque signal value based on the comparison deviation; A headlight steering module is used to perform a headlight steering operation according to the headlight torque signal value.

8. A vehicle, characterized in that: The vehicle includes a memory, a processor, and a processing program stored in the memory and executable on the processor. When the processing program is executed by the processor, a lane keeping and headlight linkage method according to any one of claims 1 to 6 is implemented.

9. A storage medium, characterized in that: The storage medium stores a processing program, which, when executed by a processor, implements a lane keeping and headlight linkage method according to any one of claims 1 to 6.

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