A wheel dynamic balance detection method, device, system and storage medium

Abstract

The present invention discloses a method, device, system and storage medium for detecting the dynamic balance of a wheel. By responding to the wheel dynamic balance detection signal, the rotational speed data of the wheel is obtained in real time and calculated based on the wheel speed data of the wheel. According to the responded detection signal, a wheel speed threshold or a reference rotational speed threshold is selected to be compared with the rotational speed data. When the comparison result is that the rotational speed data is greater than or equal to the triggered wheel speed threshold or the reference rotational speed threshold, a wheel dynamic balance adjustment signal is triggered, and the dynamic balance of the wheel is adjusted. The present invention determines the dynamic balance state of the wheel through the wheel rotational speed data, fully considering the dynamic balance characteristics of the wheel at different rotational speeds, improving the accuracy and practicability of the detection of the wheel dynamic balance state; the automatically triggered dynamic balance detection of the system facilitates the driver to timely master and discover the abnormal state of the wheel dynamic balance, improves the driving and control performance of the vehicle, and improves the timeliness of the system to adjust the wheel dynamic balance state.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle dynamic balance detection, and particularly to a method, device, system and storage medium for detecting the dynamic balance of wheels. Background Art

[0002] Monitoring the safety state of vehicle operation is the main means to ensure its safe driving. It dynamically monitors the safety state and operation indicators of vehicle operation, and discovers and prevents faults in a timely manner. Monitoring the safety state of vehicle operation mainly includes monitoring vehicle motion attitude parameters, dynamic load parameters, and braking performance parameters. During the operation of the vehicle, working conditions such as braking, accelerating, steering, and straight-line driving will occur. The wheel is the only component in contact with the ground during vehicle driving, containing rich operation information (motion attitude, driving force, braking force, dynamic load, rotation, impact), and the dynamic balance state of the wheel plays an important role in ensuring the service life of the vehicle, driving smoothness, driving direction lightness, avoiding wheel jumping and shimmy, resulting in direction loss of control, tire blowout, etc.

[0003] However, the existing technologies for detecting the dynamic balance of wheels have the following problems. Firstly, it is necessary to regularly detect and diagnose the dynamic balance of wheels, that is, the driver cannot timely master the dynamic balance state of the wheels, nor can he timely discover the abnormal state of the dynamic balance of the wheels and deal with it. Secondly, the existing wheel dynamic balance is processed by methods such as improving the manufacturing process and pasting balance weights, without considering the characteristics of wheel dynamic balance at different rotational speeds. Summary of the Invention

[0004] The present invention provides a method, device, system and storage medium for detecting the dynamic balance of wheels, so as to achieve the technical effect of improving the real-time performance of mastering and adjusting the dynamic balance state of the wheels, and adjusting the dynamic balance of the wheels considering the wheel rotational speed to improve the practicality of the adjustment.

[0005] In order to solve the above technical problems, an embodiment of the present invention provides a method for detecting the dynamic balance of wheels, including the following steps:

[0006] In response to the wheel dynamic balance detection signal, the wheel speed data of the wheel is obtained in real time, and then the rotational speed data of the wheel is calculated based on the wheel speed data;

[0007] According to the wheel dynamic balance detection signal, a preset trigger wheel speed threshold or reference rotational speed threshold is selected to be compared with the rotational speed data, and a corresponding comparison result is obtained. When the comparison result is that the rotational speed data is greater than or equal to the trigger wheel speed threshold or the reference rotational speed threshold, a wheel dynamic balance adjustment signal is triggered and the dynamic balance of the wheel is adjusted.

[0008] After responding to the wheel dynamic balance detection signal automatically triggered by the system, the wheel dynamic balance detection method provided by the present invention first obtains the wheel speed data collected by the system in real time, and calculates the rotational speed data of the wheel based on the wheel speed data collected in real time. When the subsequent system performs wheel dynamic balance detection based on the wheel rotational speed data, it fully considers the dynamic balance characteristics of the wheel at different rotational speeds, improving the accuracy and practicality of the wheel dynamic balance state detection. Detecting the wheel dynamic balance through the vehicle speed data makes the wheel dynamic balance state determined by the system more in line with the actual state of the wheel, facilitating the driver to timely grasp the wheel dynamic balance state, promptly discover abnormal wheel dynamic balance states, and take measures to improve the driving and handling performance of the vehicle, indirectly improving the timeliness of the system to adjust the wheel dynamic balance state.

[0009] After calculating the rotational speed data of the wheel, the system will select a trigger wheel speed threshold or a reference rotational speed threshold in response to the wheel dynamic balance detection signal to compare with the rotational speed data, and then determine whether to perform balance adjustment on the wheel dynamic balance state based on the comparison result. The wheel dynamic balance detection method provided by the present invention uses the rotational speed data of the wheel as the reference data for detecting the wheel dynamic balance state. At the same time, the system will also flexibly select the reference data for judging the wheel dynamic balance state according to the wheel dynamic balance detection signal in response, so that the selected reference data is more in line with the real-time state of the wheel. The system integrates automatic acquisition, processing, and control, can automatically balance the wheel dynamic balance state, and can also perform self-correction according to different rotational speed conditions, realizing the adjustment of wheel dynamic balance under different working conditions.

[0010] As a preferred example, the wheel dynamic balance detection signal selects a preset trigger wheel speed threshold or a reference rotational speed threshold to compare with the rotational speed data, specifically including:

[0011] Analyze the wheel dynamic balance detection signal to obtain the type of dynamic balance detection signal, and then select one of the trigger wheel speed threshold and the reference rotational speed threshold as the detection data according to the type of dynamic balance detection signal;

[0012] If the selected detection data is the trigger wheel speed threshold, compare the rotational speed data with the trigger wheel speed threshold and output the comparison result;

[0013] If the selected detection data is the reference rotational speed threshold, retrieve the corresponding correction coefficient to correct the trigger wheel speed threshold, obtain the corrected reference rotational speed threshold, and then compare the rotational speed data with the reference rotational speed threshold and output the comparison result.

[0014] After calculating the rotational speed data, the system will determine which reference data to use as the detection data for the rotational speed data based on the response signal. By analyzing the response signal of the wheel dynamic balance detection, the signal type of the corresponding dynamic balance detection signal is determined, and then one of the trigger wheel speed threshold or the reference rotational speed threshold is selected as the detection data for the rotational speed data according to the signal type.

[0015] If the selected detection data is the trigger wheel speed threshold, the rotational speed data is directly compared with the trigger wheel speed threshold without any other processing on the two. Compared with the reference rotational speed threshold that requires other processing to obtain, using the trigger wheel speed threshold as the detection data improves the detection efficiency and is applicable to the situation where quick judgment of wheel dynamic balance is needed.

[0016] If the selected monitoring data is the reference rotational speed threshold, the system will also retrieve the correction coefficient to correct the trigger wheel speed threshold and compare the corrected reference rotational speed threshold with the rotational speed data. Using the reference rotational speed threshold as the detection data results in a more accurate judgment result and is more in line with the actual working conditions of the wheel compared to using the trigger wheel speed threshold.

[0017] As a preferred example, the retrieving of the corresponding correction coefficient to correct the trigger wheel speed threshold is specifically as follows:

[0018] Collect the environmental data and vehicle operation scenario data in real time, and obtain the vehicle operation condition data. Adjust the environmental data, the vehicle operation scenario data, and the vehicle operation condition data according to the preset weight coefficients, and then calculate the vehicle operation data based on the adjusted data.

[0019] Retrieve and match in the correction database according to the vehicle operation data, and use the correction data with the highest matching degree in the retrieval and matching results as the correction coefficient to correct the trigger wheel speed threshold.

[0020] If the selected detection data is the reference rotational speed threshold, when the system retrieves the correction coefficient, it will first collect the environmental data, vehicle operation scenario data, and vehicle operation condition data of the current vehicle, adjust the above three data according to the preset weight coefficients, and then substitute the data processed according to a certain weight ratio into the formula to calculate the current operation data of the vehicle, providing reference data for determining the correction coefficient later.

[0021] After calculating and obtaining the current operating data of the vehicle, retrieve and match in the correction database according to the calculated operating data, that is, match the operating data with each correction data in the correction database to determine whether there is correction data in the database that matches the operating data, and use the correction data with the highest matching degree with the operating data in the matching result as the correction coefficient to correct the trigger wheel speed threshold, so as to improve the accuracy and reliability of the system for detecting the dynamic balance state of the wheel.

[0022] As a preferred example, triggering the wheel dynamic balance adjustment signal and performing dynamic balance adjustment on the wheel specifically includes:

[0023] In response to the wheel dynamic balance adjustment signal, generate and transmit a corresponding deflection signal to the wheel electronic balance device, so that the wheel electronic balance device outputs a corresponding control voltage according to the deflection signal to control the deflection motor to deflect, and further make the balance body rotate;

[0024] Real-time obtain the wheel speed data of the wheel, calculate the rotational speed data according to the wheel speed data, and judge whether the wheel is in a dynamic balance state according to the rotational speed data. Stop the wheel dynamic balance adjustment process until the judgment result is that the wheel is in a dynamic balance state, and lock the wheel electronic balance device at a specified position.

[0025] If it is determined that the dynamic balance state of the wheel needs to be adjusted, a deflection signal will be generated according to the wheel dynamic balance adjustment signal automatically triggered by the system and transmitted to the wheel electronic balance device, so that the device outputs a control voltage according to the deflection signal, controls the deflection motor to rotate forward or backward through the control voltage, and further drives the balance body to rotate forward or backward through the rotation of the deflection motor, so as to adjust the dynamic balance state of the wheel.

[0026] During the above adjustment process, the system will continuously collect the wheel speed data of the wheel and calculate the corresponding rotational speed data, and then judge the dynamic balance state of the wheel according to the rotational speed data. Until it is judged that the wheel is in a dynamic balance state, the electronic balance device of the wheel will be locked at a specified position while stopping the above adjustment process to avoid aggravating the imbalance of the wheel, so as to extend the dynamic balance state of the wheel.

[0027] Correspondingly, the embodiment of the present invention also provides a wheel dynamic balance detection device, and the wheel dynamic balance detection device includes a data acquisition module and a wheel balance module;

[0028] Wherein, the data acquisition module is used to respond to the wheel dynamic balance detection signal, real-time obtain the wheel speed data of the wheel, and then calculate the rotational speed data of the wheel according to the wheel speed data;

[0029] The wheel balance module is used to select a preset trigger wheel speed threshold or reference rotation speed threshold according to the wheel dynamic balance detection signal, compare it with the rotation speed data, obtain a corresponding comparison result, and when the comparison result is that the rotation speed data is greater than or equal to the trigger wheel speed threshold or the reference rotation speed threshold, trigger a wheel dynamic balance adjustment signal and perform dynamic balance adjustment on the wheel.

[0030] As a preferred example, the wheel balance module selects a preset trigger wheel speed threshold or reference rotation speed threshold according to the wheel dynamic balance detection signal and compares it with the rotation speed data, specifically including:

[0031] Analyze the wheel dynamic balance detection signal to obtain the type of dynamic balance detection signal, and then select one of the trigger wheel speed threshold and the reference rotation speed threshold as the detection data according to the type of dynamic balance detection signal;

[0032] If the selected detection data is the trigger wheel speed threshold, compare the rotation speed data with the trigger wheel speed threshold and output the comparison result;

[0033] If the selected detection data is the reference rotation speed threshold, retrieve the corresponding correction coefficient to correct the trigger wheel speed threshold, obtain the corrected reference rotation speed threshold, and then compare the rotation speed data with the reference rotation speed threshold and output the comparison result.

[0034] As a preferred example, the wheel balance module retrieves the corresponding correction coefficient to correct the trigger wheel speed threshold, specifically:

[0035] Real-time collect environmental data and vehicle operation scenario data, obtain vehicle operation condition data, adjust the environmental data, the vehicle operation scenario data and the vehicle operation condition data according to a preset weight coefficient, and then calculate and obtain vehicle operation data according to the adjusted data;

[0036] Retrieve and match in the correction database according to the vehicle operation data, and use the correction data with the highest matching degree in the retrieval and matching result as the correction coefficient to correct the trigger wheel speed threshold.

[0037] As a preferred example, the wheel balance module triggers a wheel dynamic balance adjustment signal and performs dynamic balance adjustment on the wheel, specifically including:

[0038] In response to the wheel dynamic balance adjustment signal, generate and transmit a corresponding deflection signal to the wheel electronic balance device, so that the wheel electronic balance device outputs a corresponding control voltage according to the deflection signal to control the deflection of the deflection motor, and further make the balance body rotate;

[0039] Obtain the wheel speed data of the wheel in real time, calculate the rotation speed data based on the wheel speed data, and determine whether the wheel is in a dynamic balance state according to the rotation speed data. Stop the wheel dynamic balance adjustment process until the judgment result is that the wheel is in a dynamic balance state, and lock the wheel electronic balance device at a specified position.

[0040] Correspondingly, an embodiment of the present invention further provides a wheel dynamic balance detection system. The wheel dynamic balance detection system includes a memory, a processor, and a computer program stored on the memory and running on the processor. When the processor processes the computer program, it implements a wheel dynamic balance detection method as described in any one of the above.

[0041] Correspondingly, an embodiment of the present invention further provides a storage medium. A computer program is stored on the storage medium, and the computer program is called and executed by a processor to implement a wheel dynamic balance detection method as described in any one of the above. Description of the Drawings

[0042] Figure 1 : A flowchart of an embodiment of the wheel dynamic balance detection method provided by the present invention;

[0043] Figure 2 : A structural schematic diagram of an embodiment of the wheel dynamic balance detection device provided by the present invention;

[0044] Figure 3 : A structural diagram of an embodiment of the wheel electronic balance device provided by the present invention;

[0045] Figure 4 : A pin schematic diagram of an embodiment of the control module integrated chip provided by the present invention. Detailed Embodiments

[0046] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with 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, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0047] Embodiment 1

[0048] Please refer to Figure 1 , a flowchart of an embodiment of the wheel dynamic balance detection method provided by the present invention, including steps 101 to 102, and the specific steps are as follows:

[0049] Step 101: In response to a wheel dynamic balance detection signal, the wheel speed data is acquired in real time, and then the wheel rotation speed data is calculated based on the wheel speed data.

[0050] After responding to the wheel dynamic balance detection signal automatically triggered by the system, the wheel dynamic balance detection method provided by the embodiment of the present invention first obtains the wheel speed data collected by the system in real time, and calculates the wheel speed data according to the wheel speed data collected in real time, so that when the subsequent system performs wheel dynamic balance detection according to the wheel speed data, the dynamic balance characteristics of the wheel at different speeds are fully considered, thereby improving the accuracy and practicality of the wheel dynamic balance state detection. By detecting the wheel dynamic balance through the vehicle speed data, the wheel dynamic balance state determined by the system is more consistent with the actual state of the wheel, which is convenient for the driver to grasp the wheel dynamic balance state in time, and the abnormal state of the wheel dynamic balance can be discovered in time and processed, thereby improving the driving and handling performance of the vehicle, and indirectly improving the timeliness of the system's adjustment of the wheel dynamic balance state.

[0051] In this embodiment, when there is unbalanced mass in the wheel, the centrifugal force of each tiny mass unit will form a centrifugal force system, and when the car is running at high speed, a very small eccentricity can also generate a large centrifugal force, and because the eccentricity is rotating, its size and direction are constantly changing, and the wheel will produce radial and lateral jumps, thereby reducing the handling stability of the vehicle. At the same time, the continuous vibration of the steering wheel will cause the steering wheel to shake, and the car will become difficult to control and control, reducing the riding experience of the driver and passengers, thereby reducing the handling stability and ride comfort of the car. In severe cases, it may cause the car to become unstable, causing accidents that endanger personal safety and cause property losses. Therefore, it is necessary to take dynamic balancing detection and diagnosis for the wheel, and to install balancing blocks on the relevant parts of the unbalanced wheel for relevant treatment, so as to improve the handling stability and ride comfort of the car, and at the same time, it can effectively reduce accidents caused by car instability.

[0052] In this embodiment, the system first collects the vehicle wheel speed signal through the vehicle wheel speed sensor installed at the vehicle wheel, and calculates the vehicle wheel speed data Vn according to the collected vehicle wheel speed signal, that is, the real-time wheel speed data Vn of the vehicle is obtained in this embodiment, and then calculates the wheel speed data n according to the obtained wheel speed data Vn, that is, the specific calculation formula is V n =2πr*n can be determined as follows:

[0053]

[0054] In the above calculation formula, Vn is the wheel speed, with the unit of km / h; r is the wheel radius, with the unit of m; n is the wheel rotation speed, with the unit of r / s. The embodiments of the present invention do not further limit the calculation method, and users can select the corresponding calculation method according to needs or actual situations. In this embodiment, it is preferably to calculate the wheel rotation speed data n through the wheel speed data Vn, or the wheel rotation speed data n can also be calculated through the wheel angular velocity data ω.

[0055] If the signal triggered by the user is not the wheel dynamic balance detection signal but the wheel dynamic balance viewing signal, after the system calculates the wheel rotation speed data based on the real-time obtained wheel speed data, it will feedback and display it to the user, such as the driver, and then end the process of viewing the wheel dynamic balance state.

[0056] Step 102: Select a preset trigger wheel speed threshold or reference rotation speed threshold according to the wheel dynamic balance detection signal to compare with the rotation speed data, obtain the corresponding comparison result, and when the comparison result is that the rotation speed data is greater than or equal to the trigger wheel speed threshold or the reference rotation speed threshold, trigger a wheel dynamic balance adjustment signal and perform dynamic balance adjustment on the wheel.

[0057] After calculating the wheel rotation speed data, the system will select a trigger wheel speed threshold or reference rotation speed threshold according to the corresponding wheel dynamic balance detection signal to compare with the rotation speed data, and then determine whether to perform balance adjustment on the wheel dynamic balance state according to the comparison result. The wheel dynamic balance detection method provided by the present invention uses the wheel rotation speed data as the reference data for detecting the wheel dynamic balance state. At the same time, the system will also flexibly select the reference data for judging the wheel dynamic balance state according to the corresponding wheel dynamic balance detection signal, so that the selected reference data is more in line with the real-time state of the wheel. The system integrates automatic acquisition, processing, and control, can realize automatic balancing of the wheel dynamic balance state, and can also be automatically corrected according to different rotation speed working conditions, realizing the adjustment of the wheel dynamic balance under different working conditions.

[0058] Specifically, when the wheel dynamic balance detection signal of this embodiment selects a preset trigger wheel speed threshold or reference rotation speed threshold to compare with the rotation speed data, it specifically includes:

[0059] Analyze the wheel dynamic balance detection signal to obtain the type of dynamic balance detection signal, and then select one of the trigger wheel speed threshold and the reference rotation speed threshold as the detection data according to the type of dynamic balance detection signal;

[0060] If the selected detection data is the trigger wheel speed threshold, compare the rotation speed data with the trigger wheel speed threshold and output the comparison result;

[0061] If the selected detection is the reference rotational speed threshold, the corresponding correction coefficient is retrieved to correct the trigger wheel speed threshold, obtaining the corrected reference rotational speed threshold. Subsequently, the rotational speed data is compared with the reference rotational speed threshold, and the comparison result is output.

[0062] After the rotational speed data is calculated, the system will determine which reference data to use as the detection data for the rotational speed data based on the response signal. By analyzing the response signal of the wheel dynamic balance detection, the signal type of the corresponding dynamic balance detection signal is determined. Subsequently, one of the trigger wheel speed threshold or the reference rotational speed threshold is selected as the detection data for the rotational speed data according to the signal type.

[0063] If the selected detection data is the trigger wheel speed threshold, the rotational speed data is directly compared with the trigger wheel speed threshold without any other processing on both. Compared with the reference rotational speed threshold that requires other processing to obtain, using the trigger wheel speed threshold as the detection data improves the detection efficiency and is applicable to situations where a quick judgment of the wheel dynamic balance is needed. That is, if the user needs to quickly obtain the judgment result of the current running state of the wheel, i.e., the wheel dynamic balance state, or the vehicle is in a steady driving state and thus no more specific detection of the wheel dynamic balance state is required, the detection data can be triggered to the trigger wheel speed threshold to improve the efficiency of obtaining the detection result.

[0064] In this embodiment, if the trigger wheel speed threshold Nf is selected as the detection data to compare the rotational speed data, the following two execution steps will be triggered according to the different comparison results:

[0065]

[0066] The above formula indicates that when the rotational speed data n is less than the trigger wheel speed threshold Nf, the system will not perform any action, i.e., no action; while when the rotational speed data n is greater than or equal to the trigger wheel speed threshold Nf, the system will start to execute the preset program, i.e., trigger the wheel dynamic balance adjustment signal to adjust the dynamic balance of the wheel as described in this embodiment.

[0067] If the selected monitoring data is the reference rotational speed threshold, the system will also retrieve the correction coefficient to correct the trigger wheel speed threshold and compare the corrected reference rotational speed threshold with the rotational speed data. Using the reference rotational speed threshold as the detection data results in a more accurate judgment result and is more in line with the actual working conditions of the wheel compared to using the trigger wheel speed threshold. That is, if the user needs a judgment result of the current running state of the wheel, i.e., the wheel dynamic balance state, as detailed and accurate as possible, or the driving state or driving road conditions of the vehicle are unstable and a more accurate dynamic balance detection of the wheel is required, the detection data can be triggered to the reference rotational speed threshold to improve the accuracy and reliability of the detection result.

[0068] In this embodiment, when the detected data is the reference rotational speed threshold Nc, according to different comparison results, the following two different processing methods will be triggered:

[0069]

[0070] The above formula indicates that when the rotational speed data n is less than the reference rotational speed threshold Nc, the system will not perform any action, that is, no action; while when the rotational speed data n is greater than or equal to the reference rotational speed threshold Nc, the system will start to execute a preset program, that is, trigger the wheel dynamic balance adjustment signal to adjust the dynamic balance of the wheel as described in this embodiment.

[0071] Furthermore, the corresponding correction coefficient is retrieved to correct the trigger wheel speed threshold in this embodiment, specifically:

[0072] The environmental data and vehicle operation scenario data are collected in real time, and the vehicle operation condition data is obtained. The environmental data, the vehicle operation scenario data, and the vehicle operation condition data are adjusted according to the preset weight coefficients, and then the vehicle operation data is calculated based on the adjusted data.

[0073] The vehicle operation data is retrieved and matched in the correction database, and the correction data with the highest matching degree in the retrieval and matching results is used as the correction coefficient to correct the trigger wheel speed threshold.

[0074] If the detected data selected is the reference rotational speed threshold, when the system retrieves the correction coefficient, it will first collect the environmental data, vehicle operation scenario data, and vehicle operation condition data of the current vehicle, and adjust the above three data according to the preset weight coefficients. Then, the data processed according to a certain weight ratio is substituted into the formula to calculate the current operation data of the vehicle, providing reference data for subsequent determination of the correction coefficient.

[0075] After calculating the current operation data of the vehicle, it is retrieved and matched in the correction database according to the calculated operation data, that is, the operation data is matched with each correction data in the correction database to determine whether there is correction data in the database that matches the operation data, and the correction data with the highest matching degree with the operation data in the matching results is used as the correction coefficient to correct the trigger wheel speed threshold, thereby improving the accuracy and reliability of the system for detecting the dynamic balance state of the wheel. The calculation formula for correcting the trigger wheel speed threshold Nf according to the correction coefficient η in this embodiment is as follows:

[0076] N c =ηN f

[0077] In the above calculation formula, Nf is the trigger wheel speed threshold, with the unit of r / s; the correction coefficient η is (0.8 - 1.2); n is the wheel speed, with the unit of r / s.

[0078] In this embodiment, when the system revises the trigger wheel speed threshold through the correction coefficient, it takes the current operating condition of the vehicle, the driving environment of the vehicle, and the operating scenario of the vehicle as one of the parameters for calculating the vehicle operating data, fully considering the internal and external conditions of the vehicle's current driving. The vehicle operating data obtained by such calculation will also reflect the most real and reliable operating state of the vehicle. The correction coefficient obtained by matching the vehicle operating data obtained through the above calculation in the correction database will also be the correction data that most conforms to the current state of the vehicle.

[0079] Further, the triggering of the wheel dynamic balance adjustment signal and the dynamic balance adjustment of the wheel in this embodiment specifically include:

[0080] In response to the wheel dynamic balance adjustment signal, generate and transmit a corresponding deflection signal to the wheel electronic balance device, so that the wheel electronic balance device outputs a corresponding control voltage according to the deflection signal to control the deflection motor to deflect, and further make the balance body rotate;

[0081] Real-time acquire the wheel speed data of the wheel, calculate the rotation speed data according to the wheel speed data, and judge whether the wheel is in a dynamic balance state according to the rotation speed data. Stop the wheel dynamic balance adjustment process until the judgment result is that the wheel is in a dynamic balance state, and lock the wheel electronic balance device at a specified position.

[0082] If it is determined that the dynamic balance state of the wheel needs to be adjusted, a deflection signal will be generated according to the wheel dynamic balance adjustment signal automatically triggered by the system and transmitted to the wheel electronic balance device, so that the device outputs a control voltage according to the deflection signal, controls the deflection motor to rotate forward or backward through the control voltage, and further drives the balance body to rotate forward or backward through the rotation of the deflection motor, thereby adjusting the dynamic balance state of the wheel.

[0083] During the above adjustment process, the system will also continuously collect the wheel speed data of the wheel and calculate the corresponding rotation speed data, and then judge the dynamic balance state of the wheel according to the rotation speed data. Until it is judged that the wheel is in a dynamic balance state, the electronic balance device of the wheel will be locked at a specified position while stopping the above adjustment process, avoiding aggravating the imbalance of the wheel, so as to extend the dynamic balance state of the wheel.

[0084] In this embodiment, when the wheel speed is lower than the reference speed threshold Nc or the trigger wheel speed threshold Nf (selected by the user independently), the worm and gear set of the wheel electronic balance device will be self-locked and the device will be locked in a fixed position; when the speed is higher than the reference speed threshold Nc or the trigger wheel speed threshold Nf, the sensing module of the wheel electronic balance device will trigger an action to turn on the power supply, and at the same time give a deflection signal to the control module, and the control module will control the forward and reverse rotation of the motor by the positive and negative of the output voltage, so that the balancing weight rotates forward or backward on the toothed ring to make the wheel reach balance. At the same time, in order to avoid the balancing weight and the unbalanced mass being on the same axis, the wheel electronic balance device needs to be installed with at least three balancing weights.

[0085] Specifically, refer to Figure 3 , Figure 3 which is a structural diagram of an embodiment of the wheel electronic balance device provided by the present invention. As Figure 3 shown, Figure 3 301 in

[0086] is a pinion gear, 302 is a reduction and interlocking mechanism, 303 is a motor, 304 is a pin, 305 is a spring, 306 is a battery pack, 307 is a control circuit, and 308 is a sensing device.

[0087] Among them, the cooperation of the 304 pin and the 305 spring facilitates the installation and disassembly of the balancing weight, and at the same time has a guiding effect; the 301 pinion gear meshes with the toothed ring, and the mechanism moves or stops on the toothed ring under the driving force of the 303 motor; the 302 reduction and interlocking mechanism is a worm and gear drive, and this device has an interlocking function and can achieve the effect of reducing speed and increasing torque; the 303 motor provides power for the crawling of the device; the 306 battery pack supplies power to the entire device; the 308 sensing device controls the on and off of the circuit and outputs a deflection signal (generally, this sensor is an angle sensor), and the relevant control module receives the signal transmitted by the 308 sensing device and controls the 303 motor to rotate forward and backward.

[0087] The principle of the control module integrated chip in this embodiment is to have the function of controlling the forward and reverse rotation of a DC motor. The pin diagram of this chip is as Figure 4 shown, and the meanings represented by each pin are as shown in the following table:

[0088] Pin Symbol Description 1 IN1 Input 1 2 IN2 Input 2 3 OUT1 Output 1 4 GND Ground 5 OUT2 Output 2 6 V8 Input of M drive circuit (0 - 8V) 7 VCC Input of IC working circuit (6 - 18V)

[0089] And the input and output of the chip and the motor action table are as shown in the following table:

[0090]

[0091]

[0092] To better illustrate the working principle and step flow of a wheel dynamic balance detection method, device, system, and storage medium according to the present invention, reference can be made, but not limited to, the relevant records above.

[0093] Refer to Figure 2 , Figure 2 which is a schematic structural diagram of an embodiment of the wheel dynamic balance detection device provided by the present invention. As Figure 2 shown, the wheel dynamic balance detection device includes a data acquisition module 201 and a wheel balance module 202.

[0094] Among them, the data acquisition module 201 is configured to, in response to a wheel dynamic balance detection signal, acquire the wheel speed data of the wheel in real time, and then calculate the rotational speed data of the wheel based on the wheel speed data.

[0095] The wheel balance module 202 is configured to select a preset trigger wheel speed threshold or reference rotational speed threshold according to the wheel dynamic balance detection signal, compare it with the rotational speed data, obtain a corresponding comparison result, and when the comparison result is that the rotational speed data is greater than or equal to the trigger wheel speed threshold or the reference rotational speed threshold, trigger a wheel dynamic balance adjustment signal and perform dynamic balance adjustment on the wheel.

[0096] Further, the wheel balance module 202 selects a preset trigger wheel speed threshold or reference rotational speed threshold according to the wheel dynamic balance detection signal and compares it with the rotational speed data, specifically including:

[0097] Analyze the wheel dynamic balance detection signal to obtain the type of dynamic balance detection signal, and then select one of the trigger wheel speed threshold and the reference rotational speed threshold as the detection data according to the type of dynamic balance detection signal;

[0098] If the selected detection data is the trigger wheel speed threshold, compare the rotational speed data with the trigger wheel speed threshold and output the comparison result; if the selected detection data is the reference rotational speed threshold, retrieve a corresponding correction coefficient to correct the trigger wheel speed threshold, obtain the corrected reference rotational speed threshold, and then compare the rotational speed data with the reference rotational speed threshold and output the comparison result.

[0099] Furthermore, the wheel balance module 202 retrieves a corresponding correction coefficient to correct the trigger wheel speed threshold, specifically:

[0100] Collect environmental data and vehicle operation scenario data in real time, obtain vehicle operation condition data, adjust the environmental data, the vehicle operation scenario data and the vehicle operation condition data according to a preset weight coefficient, and then calculate vehicle operation data based on the adjusted data; retrieve and match in a correction database according to the vehicle operation data, and use the correction data with the highest matching degree in the retrieval and matching results as the correction coefficient to correct the trigger wheel speed threshold.

[0101] Further, the wheel balance module 202 triggers a wheel dynamic balance adjustment signal and adjusts the dynamic balance of the wheel, specifically including:

[0102] In response to the wheel dynamic balance adjustment signal, generate and transmit a corresponding deflection signal to the wheel electronic balance device, so that the wheel electronic balance device outputs a corresponding control voltage according to the deflection signal to control the deflection motor to deflect, and further make the balance body rotate; obtain the wheel speed data of the wheel in real time, calculate the rotation speed data according to the wheel speed data, and judge whether the wheel is in a dynamic balance state according to the rotation speed data, and stop the wheel dynamic balance adjustment process until the judgment result is that the wheel is in a dynamic balance state, and lock the wheel electronic balance device at a specified position.

[0103] Correspondingly, an embodiment of the present invention further provides a wheel dynamic balance detection system, which includes a memory, a processor, and a computer program stored on the memory and running on the processor. When the processor processes the computer program, it implements a wheel dynamic balance detection method as described in any one of the above.

[0104] Correspondingly, an embodiment of the present invention further provides a storage medium, on which a computer program is stored. The computer program is called and executed by a processor to implement a wheel dynamic balance detection method as described in any one of the above.

[0105] In summary, the embodiments of the present invention provide a method, device, system, and storage medium for wheel dynamic balance detection. By responding to the wheel dynamic balance detection signal, the rotational speed data of the wheel is obtained in real time and calculated based on the wheel speed data of the wheel. According to the responded detection signal, a wheel speed threshold or a reference rotational speed threshold is selected to be compared with the rotational speed data. When the comparison result is that the rotational speed data is greater than or equal to the triggered wheel speed threshold or the reference rotational speed threshold, a wheel dynamic balance adjustment signal is triggered, and the dynamic balance of the wheel is adjusted. The present invention determines the wheel dynamic balance state through the wheel rotational speed data, fully considers the dynamic balance characteristics of the wheel at different rotational speeds, and improves the accuracy and practicability of the wheel dynamic balance state detection; the automatically triggered dynamic balance detection of the system facilitates the driver to timely master and discover the abnormal state of the wheel dynamic balance, improves the driving and handling performance of the vehicle, and improves the timeliness of the system to adjust the wheel dynamic balance state.

[0106] In the specific embodiments described above, the purpose, technical solution, and beneficial effects of the present invention have been further described in detail. It should be understood that the above description is only the specific embodiments of the present invention and is not used to limit the protection scope of the present invention. It is particularly pointed out that for those skilled in the art, any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A wheel dynamic balance detection method, characterized in that: The following steps are involved: In response to the wheel dynamic balance detection signal, the wheel speed data of the wheel is acquired in real time, and then the wheel rotation speed data is calculated according to the wheel speed data; According to the wheel dynamic balance detection signal, a preset trigger wheel speed threshold or a reference speed threshold is selected to compare with the speed data to obtain a corresponding comparison result, and when the comparison result shows that the speed data is greater than or equal to the trigger wheel speed threshold or the reference speed threshold, a wheel dynamic balance adjustment signal is triggered and the wheel is dynamically balanced, including: In response to the wheel dynamic balance adjustment signal, a corresponding deflection signal is generated and transmitted to the wheel electronic balancing device, so that the wheel electronic balancing device outputs a corresponding control voltage according to the deflection signal to control the deflection motor to deflect, thereby further rotating the balancing body; The wheel speed data of the wheel is acquired in real time, the rotation speed data is calculated based on the wheel speed data, and whether the wheel is in a dynamic balance state is determined based on the rotation speed data. The wheel dynamic balance adjustment process is stopped until the result of the determination is that the wheel is in a dynamic balance state, and the wheel electronic balancing device is locked at a specified position.

2. A wheel dynamic balance detection method as claimed in claim 1, characterized in that: The selecting a preset trigger wheel speed threshold or a reference speed threshold according to the wheel dynamic balance detection signal to compare with the speed data specifically includes: parsing the wheel dynamic balance detection signal to obtain a dynamic balance detection signal type, and then selecting one of the trigger wheel speed threshold and the reference speed threshold as detection data according to the dynamic balance detection signal type; If the selected detection data is the trigger wheel speed threshold, comparing the rotation speed data with the trigger wheel speed threshold, and outputting the comparison result; If the selected detection data is the reference speed threshold, the corresponding correction coefficient is called to correct the trigger wheel speed threshold to obtain the corrected reference speed threshold, and then the speed data is compared with the reference speed threshold to output the comparison result.

3. A wheel dynamic balance detection method as claimed in claim 2, characterized in that: The calling of the corresponding correction coefficient to correct the trigger wheel speed threshold is specifically as follows: Collecting environmental data and vehicle operation scenario data in real time, and obtaining vehicle operation condition data, adjusting the environmental data, the vehicle operation scenario data and the vehicle operation condition data according to a preset weight coefficient, and then calculating and obtaining the vehicle operation data according to the adjusted data; A search and match is performed in a correction database according to the vehicle operation data, and the correction data with the highest matching degree in the search and matching results is used as the correction coefficient to correct the trigger wheel speed threshold.

4. A wheel dynamic balance detection device, characterized in that: The wheel dynamic balance detection device includes a data acquisition module and a wheel balancing module; The data acquisition module is used to obtain the wheel speed data of the wheel in real time in response to the wheel dynamic balance detection signal, and then calculate the wheel rotation speed data according to the wheel speed data; The wheel balancing module is used to select a preset trigger wheel speed threshold or a reference speed threshold according to the wheel dynamic balance detection signal to compare with the speed data to obtain a corresponding comparison result, and when the comparison result is that the speed data is greater than or equal to the trigger wheel speed threshold or the reference speed threshold, trigger the wheel dynamic balance adjustment signal and perform dynamic balance adjustment on the wheel, including: in response to the wheel dynamic balance adjustment signal, generating and transmitting a corresponding deflection signal to the wheel electronic balancing device, so that the wheel electronic balancing device outputs a corresponding control voltage according to the deflection signal to control the deflection motor to deflect, further causing the balancing body to rotate; acquiring the wheel speed data of the wheel in real time, calculating the speed data according to the wheel speed data, and judging whether the wheel is in a dynamic balance state according to the speed data, until the judgment result is that the wheel is in a dynamic balance state, then stopping the wheel dynamic balance adjustment process, and locking the wheel electronic balancing device at a specified position.

5. A wheel dynamic balance detection device as claimed in claim 4, characterized in that: The wheel balancing module selects a preset trigger wheel speed threshold or a reference speed threshold according to the wheel dynamic balance detection signal to compare with the speed data, specifically including: parsing the wheel dynamic balance detection signal to obtain a dynamic balance detection signal type, and then selecting one of the trigger wheel speed threshold and the reference speed threshold as detection data according to the dynamic balance detection signal type; If the selected detection data is the trigger wheel speed threshold, comparing the rotation speed data with the trigger wheel speed threshold, and outputting the comparison result; If the selected detection data is the reference speed threshold, the corresponding correction coefficient is called to correct the trigger wheel speed threshold to obtain the corrected reference speed threshold, and then the speed data is compared with the reference speed threshold to output the comparison result.

6. A wheel dynamic balance detection device as claimed in claim 5, characterized in that: The wheel balancing module retrieves the corresponding correction coefficient to correct the trigger wheel speed threshold, specifically: Collecting environmental data and vehicle operation scenario data in real time, and obtaining vehicle operation condition data, adjusting the environmental data, the vehicle operation scenario data and the vehicle operation condition data according to a preset weight coefficient, and then calculating and obtaining the vehicle operation data according to the adjusted data; A search and match is performed in a correction database according to the vehicle operation data, and the correction data with the highest matching degree in the search and matching results is used as the correction coefficient to correct the trigger wheel speed threshold.

7. A wheel dynamic balance detection system, characterized in that: The wheel dynamic balance detection system includes a memory, a processor, and a computer program stored in the memory and running on the processor. When the processor processes the computer program, it implements a wheel dynamic balance detection method as described in any one of claims 1 to 3.

8. A storage medium, characterized in that: The storage medium stores a computer program, which is called and executed by a processor to implement a wheel dynamic balance detection method as described in any one of claims 1 to 3.

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