Dynamic rust removal method and system for brake disc, vehicle, equipment and medium

Abstract

The invention discloses a dynamic rust removal method and system for a brake disc, a vehicle, equipment and a medium, and relates to the technical field of vehicles. A plurality of factors influencing rusting and rust removal of a brake disc of the vehicle are collected in real time when the vehicle runs; according to the multiple factors, the rusting rate function relation of the brake disc and the rust removal rate function relation of the brake disc, the current rusting rate and the current rust removal rate are calculated; the current net corrosion rate is calculated according to the function relation between the rust rate and the rust removal rate, or the current total corrosion amount is calculated according to the rust rate and the rust removal rate; judging whether the net corrosion rate is greater than or equal to a first threshold value, or judging whether the total corrosion amount is greater than or equal to a second threshold value; if yes, activating a rust removal mode, and starting a hydraulic braking system; otherwise, a brake energy recovery mode is activated to activate the hydraulic brake system and the electromechanical brake system. The device is low in cost, braking energy can be recycled to the maximum extent while braking safety is guaranteed, and corrosion development of the brake disc is restrained.

Description

Technical Field

[0001] This invention relates to the field of vehicle technology, and in particular to a dynamic rust removal method and system for brake discs, as well as a vehicle, equipment, and medium. Background Technology

[0002] Due to the arrangement and open structure of the wheel-side braking system, the brake discs are directly exposed to the air. Therefore, the brake discs are prone to corrosion under the combined effects of moisture and oxygen, and this corrosion process is accelerated in high humidity environments. Furthermore, the demands of friction braking mean that effective protective measures, such as anti-corrosion coatings, cannot be applied to the surface of the brake discs.

[0003] The reason for rust removal is that corrosion significantly affects the performance (safety) and noise levels (user experience) of the braking system. For example, corrosion causes rust spots to form on the surface of the brake disc, which increases friction noise during braking and reduces the coefficient of friction of the brake disc, thereby reducing the vehicle's braking force and affecting braking performance. In addition, corrosion may cause wear or structural damage to vehicle components, thus increasing safety hazards. Therefore, regular rust removal or protective measures (such as a sealed braking system) are necessary to ensure the reliability and long-term stability of the braking system.

[0004] Existing rust removal methods include common technologies such as electrostatic rust removal and laser rust removal. Electrostatic rust removal uses electric current to remove rust from the brake disc surface; however, it suffers from drawbacks such as dust pollution, complex operation, and high cost, and may also cause secondary damage to the vehicle's delicate electronic components. Laser rust removal uses high-energy lasers to remove rust from the brake disc surface; however, it has the following disadvantages: high equipment cost, high technical threshold, and limited effectiveness in removing rust from complex rusted areas. Summary of the Invention

[0005] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a dynamic rust removal method and system for brake discs, as well as a vehicle, equipment, and medium. This method is low in cost, can intelligently switch the vehicle's braking mode, maximizes the recovery of braking energy while ensuring vehicle braking safety, and performs rust removal on the brake discs, inhibiting the development of rust on the brake discs.

[0006] A first aspect of the present invention provides a dynamic rust removal method for brake discs, comprising the following steps: Multiple factors affecting brake disc rusting and rust removal are collected in real time while the vehicle is in motion. Based on the functional relationships of multiple factors, the brake disc rust rate, and the brake disc rust removal rate, calculate the current rust rate and rust removal rate of the brake disc. Calculate the current net rust rate based on the functional relationship between the rusting rate and the rust removal rate, or calculate the current total rust amount based on the rusting rate and the rust removal rate. Determine whether the net corrosion rate is greater than or equal to a first threshold, or determine whether the total corrosion amount is greater than or equal to a second threshold; If the net rust rate is greater than or equal to the first threshold, or if the total rust amount is greater than or equal to the second threshold, the vehicle's rust removal mode is activated to start the vehicle's hydraulic braking system; otherwise, the vehicle's brake energy recovery mode is activated to start the vehicle's hydraulic braking system and electromechanical braking system.

[0007] The dynamic rust removal method for brake discs according to a first aspect embodiment of the present invention has at least the following beneficial effects: During vehicle operation, multiple factors affecting brake disc rusting and rust removal are collected in real time. Then, based on the collected factors and preset functional relationships between brake disc rusting rate and brake disc rust removal rate, the current rusting rate and rust removal rate of the brake disc are calculated. Furthermore, based on the functional relationship between the rusting rate and rust removal rate, the current net rust rate of the brake disc is calculated, or the current total rust amount is calculated based on the rusting rate and rust removal rate. Then, the obtained net rust rate is compared with a preset first threshold, or the obtained total rust amount is compared with a preset second threshold. The system compares the values ​​of different rust rates to determine the appropriate braking method when braking is required. If the net rust rate is greater than or equal to a first threshold, or if the total rust amount is greater than or equal to a second threshold, the system activates the vehicle's rust removal mode, enabling the hydraulic braking system to operate and apply pure hydraulic braking to the brake discs. The system also disables the regenerative braking function to complete the rust removal process. If the net rust rate is less than the first threshold, or if the total rust amount is less than the second threshold, the system activates the vehicle's regenerative braking mode, enabling both the hydraulic and electromechanical braking systems to operate simultaneously. This activates the regenerative braking function to safely brake the brake discs and recover braking energy.

[0008] This configuration allows for intelligent switching of the vehicle's braking mode based on the degree of rust on the brake discs. While ensuring vehicle braking safety, it maximizes the recovery of braking energy and performs rust removal on the brake discs to inhibit rust development. Furthermore, it eliminates the need to install existing electrostatic rust removal or laser rust removal equipment on the vehicle, thus helping to reduce costs.

[0009] In some embodiments of the present invention, calculating the current rust rate and rust removal rate of the brake disc based on the multiple factors, the functional relationship of the brake disc rust rate, and the functional relationship of the brake disc rust removal rate includes the following steps: The current rust rate of the brake disc is calculated based on the following functional relationship of the brake disc rust rate and the corresponding factors. R_rust=a0+a1*H+a2*T+a3*S_naCl+a4*P_poll+a5*F_clamp+a6*T_park+ε1; Where R_rust is the rust rate, H is the ambient humidity, T is the ambient temperature, S_naCl is the salt spray concentration, P_poll is the pollutant concentration, F_clamp is the long-term parking clamping force, T_park is the continuous parking time, a0, a1, a2, a3, a4, a5 and a6 are coefficients obtained from the regression analysis of bench test data, ε1 is the error term, and H, T, S_naCl, P_poll, F_clamp and T_park are all factors that affect the rusting of the vehicle's brake disc; The current rust removal rate of the brake disc is calculated based on the following functional relationship of the brake disc rust removal rate and the corresponding factors. R_clean=b0+b1*P_brake+b2*ω+b3*μ+b4*N_brake+ε2; Where R_clean is the rust removal rate, P_brake is the braking pressure, ω is the initial braking velocity, μ is the friction coefficient, N_brake is the number of consecutive braking cycles, b0, b1, b2, b3 and b4 are coefficients obtained from the regression analysis of bench test data, ε2 is the error term, and P_brake, ω, μ and N_brake are all factors affecting the rust removal of the vehicle's brake disc.

[0010] In some embodiments of the present invention, calculating the current net rust rate based on the functional relationship between the rusting rate and the rust removal rate includes the following steps: Calculate the current net rust rate based on the following functional relationship between rust rate and rust removal rate; R_net = R_rust - R_clean; Where R_net is the net corrosion rate.

[0011] In some embodiments of the present invention, calculating the current total amount of rust based on the rusting rate and the rust removal rate includes the following steps: If the vehicle does not brake within ΔT, calculate the current total amount of rust according to the following formula; C_rust(t)=C_rust(t-1)+R_rust*ΔT; Where C_rust(t) is the total amount of rust at time t, C_rust(t-1) is the total amount of rust at time t-1, and ΔT is the calculation period; If the vehicle brakes within ΔT, calculate the current total amount of rust according to the following formula; C_rust(t)=C_rust(t-1)-R_clean*ΔT.

[0012] In some embodiments of the present invention, the dynamic rust removal method for brake discs further includes the following steps: Based on the functional relationship between the rusting rate and the rust removal rate, the current net rust rate is calculated, and based on the rusting rate and the rust removal rate, the current total rust amount is calculated. Determine whether the net corrosion rate is greater than or equal to the first threshold, and determine whether the total corrosion amount is greater than or equal to the second threshold; If the net rust rate is greater than or equal to the first threshold, or the total rust amount is greater than or equal to the second threshold, the rust removal mode is activated to start the hydraulic braking system; if the net rust rate is less than the first threshold and the total rust amount is less than the second threshold, the braking energy recovery mode is activated to start the hydraulic braking system and the electromechanical braking system.

[0013] In some embodiments of the present invention, the dynamic rust removal method for brake discs further includes the following steps: After calibrating multiple factors affecting brake disc rusting and rust removal through bench tests, a functional relationship is constructed between the brake disc rusting rate and the brake disc rust removal rate; and / or, A prompt message is issued when the rust removal mode is activated.

[0014] A second aspect of the present invention provides a dynamic rust removal system for brake discs, comprising: The data acquisition module is used to collect multiple factors that affect the rusting and rust removal of the vehicle's brake discs in real time while the vehicle is in motion; The data calculation module is used to calculate the current rust rate and rust removal rate of the brake disc based on multiple factors, the functional relationship between the rust rate and the rust removal rate of the brake disc; and is used to calculate the current net corrosion rate based on the functional relationship between the rust rate and the rust removal rate, or to calculate the current total corrosion amount based on the rust rate and the rust removal rate. The comparison and judgment module is used to determine whether the net corrosion rate is greater than or equal to a first threshold, or to determine whether the total corrosion amount is greater than or equal to a second threshold; The mode activation module is used to activate the vehicle's rust removal mode to start the vehicle's hydraulic braking system if the net rust rate is greater than or equal to the first threshold, or if the total rust amount is greater than or equal to the second threshold; otherwise, it activates the vehicle's brake energy recovery mode to start the vehicle's hydraulic braking system and electromechanical braking system.

[0015] According to a second aspect embodiment of the present invention, the dynamic rust removal system for brake discs has at least the following beneficial effects: when a vehicle is traveling on a road surface, a data acquisition module collects multiple factors affecting brake disc rusting and rust removal in real time and transmits them to a data calculation module; subsequently, the data calculation module calculates the current rusting rate and rust removal rate of the brake disc based on multiple factors and preset functional relationships between the brake disc rusting rate and the brake disc rust removal rate; then, the data calculation module substitutes the obtained rusting rate and rust removal rate into the preset functional relationship between the rusting rate and rust removal rate to calculate the current net rust rate of the brake disc, or calculates the current total rust amount of the brake disc based on the rusting rate and rust removal rate; then, a comparison and judgment module performs a comparison between the obtained net rust rate and a preset first threshold, or performs a comparison between the obtained net rust rate and a preset first threshold, or performs a comparison between the obtained net rust rate and the preset first threshold. The total rust amount is compared with a preset second threshold to provide a data basis for intelligent selection of braking mode during vehicle braking. If the net rust rate is determined to be greater than or equal to the first threshold, or if the total rust amount is determined to be greater than or equal to the second threshold, the mode activation module will activate and enter the vehicle's rust removal mode, enabling the vehicle's hydraulic braking system to operate and disabling the vehicle's brake energy recovery function to perform pure hydraulic braking on the brake discs, thereby achieving rust removal on the brake discs. If the net rust rate is determined to be less than the first threshold, or if the total rust amount is determined to be less than the second threshold, the mode activation module will activate and enter the vehicle's brake energy recovery mode, enabling the vehicle's hydraulic braking system and electromechanical braking system to operate simultaneously, activating the vehicle's brake energy recovery function to perform safe braking on the brake discs and complete the vehicle's brake energy recovery.

[0016] By adopting the above settings, the braking method of the vehicle can be intelligently selected according to the rust condition of the brake disc. While ensuring the braking safety of the vehicle, the braking energy recovery of the vehicle can be maximized, and the rust removal function of the brake disc can be realized, effectively inhibiting the rust development of the brake disc. Furthermore, there is no need to install existing electrostatic rust removal equipment or laser rust removal equipment on the vehicle to complete the rust removal of the brake disc, which helps to reduce the cost of the vehicle.

[0017] A third aspect of the present invention provides a vehicle that includes a dynamic rust removal system for brake discs as described in the second aspect embodiment.

[0018] The vehicle according to the third aspect of the present invention has at least the following beneficial effects: the vehicle adopts the above-described dynamic rust removal system for the brake disc, which enables the braking mode to be determined according to the rust condition of the brake disc before braking, so as to maximize the completion of braking energy recovery while ensuring braking safety and suppressing the aggravation of brake disc rust.

[0019] A fourth aspect of the present invention provides an electronic device comprising: At least one processor; and, A memory communicatively connected to the at least one processor; wherein the memory stores a computer program executable by the at least one processor, the computer program being executed by the at least one processor to enable the at least one processor to perform a dynamic rust removal method for a brake disc as described in the first aspect embodiment.

[0020] A fifth aspect of the present invention provides a computer-readable storage medium having a computer program stored thereon that, when executed by a processor, implements the dynamic rust removal method for brake discs as described in the first aspect embodiment.

[0021] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the description, claims, and drawings. Attached Figure Description

[0022] Figure 1 This is a flowchart illustrating the dynamic rust removal method for brake discs provided in an embodiment of the present invention. Figure 2 This is a schematic diagram of the specific process of step S2 in the dynamic rust removal method for brake discs provided according to an embodiment of the present invention. Figure 3 This is a schematic diagram of the specific process of step S3 in the dynamic rust removal method for brake discs provided according to an embodiment of the present invention. Figure 4 This is a schematic diagram of the specific process of step S3 in the dynamic rust removal method for brake discs provided according to another embodiment of the present invention. Figure 5 This is a further schematic diagram of the dynamic rust removal method for brake discs provided in an embodiment of the present invention; Figure 6 This is a further schematic diagram of the dynamic rust removal method for brake discs provided in an embodiment of the present invention; Figure 7 This is a further schematic diagram of the dynamic rust removal method for brake discs provided in an embodiment of the present invention; Figure 8This is a schematic diagram of the structure of a dynamic rust removal system for a brake disc provided according to an embodiment of the present invention; Figure 9 This is a schematic diagram of the structure of an electronic device provided according to an embodiment of the present invention. Detailed Implementation

[0023] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0024] In the description of this invention, it should be understood that the use of terms such as "first" and "second" may explicitly or implicitly include one or more of those features. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0025] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0026] The following is for reference. Figures 1 to 9 A method and system for dynamic rust removal of brake discs, a vehicle, equipment, and a medium are described according to embodiments of the present invention.

[0027] like Figures 1 to 7 As shown, the dynamic rust removal method for brake discs according to the first aspect of the present invention can intelligently switch the vehicle's braking mode according to the rust condition of the vehicle's brake discs, maximize the recovery of vehicle braking energy while ensuring vehicle braking safety, and perform rust removal work on the brake discs to inhibit the development of brake disc corrosion.

[0028] like Figure 1 As shown, the dynamic rust removal method for brake discs includes the following steps: Step S1: Collect multiple factors affecting brake disc rusting and rust removal in real time while the vehicle is in motion.

[0029] Step S2: Calculate the current rust rate and rust removal rate of the brake disc based on multiple factors, the functional relationship between the brake disc rust rate and the brake disc rust removal rate.

[0030] Step S3: Calculate the current net rust rate based on the functional relationship between the rusting rate and the rust removal rate, or calculate the current total rust amount based on the rusting rate and the rust removal rate.

[0031] Step S4: Determine whether the net rust rate is greater than or equal to the first threshold, or determine whether the total rust amount is greater than or equal to the second threshold.

[0032] Step S5: If the net rust rate is greater than or equal to the first threshold, or if the total rust amount is greater than or equal to the second threshold, activate the vehicle's rust removal mode to activate the vehicle's hydraulic braking system; otherwise, activate the vehicle's brake energy recovery mode to activate the vehicle's hydraulic braking system and electromechanical braking system.

[0033] It is understandable that in step S1, corresponding sensors can be installed on the vehicle to detect the factors affecting the rusting and rust removal of the brake disc in real time. This makes it convenient to substitute the collected factors into the functional relationship of the rusting rate and the rust removal rate of the brake disc to obtain the current rusting rate and rust removal rate of the brake disc.

[0034] In step S2, the functional relationships of the brake disc rust rate and the brake disc rust removal rate are constructed by conducting experiments on the rust and rust removal conditions of the brake disc to obtain relevant experimental data, and then constructing a model of the functional relationship based on the experimental data.

[0035] In this embodiment, as Figure 1 and Figure 2 As shown, step S2, which is the step of calculating the current rust rate and rust removal rate of the brake disc based on multiple factors, the functional relationship between the brake disc rust rate and the brake disc rust removal rate, specifically includes the following steps: Step S21: Calculate the current rust rate of the brake disc based on the following functional relationship of the brake disc rust rate and corresponding factors; R_rust=a0+a1*H+a2*T+a3*S_naCl+a4*P_poll+a5*F_clamp+a6*T_park+ε1; Where R_rust is the rusting rate, measured in μm / day or mg / day; H is the ambient humidity, measured in %; T is the ambient temperature, measured in °C; and S_naCl is the salt spray concentration, measured in mg / m³. 3P_poll represents the pollutant concentration, which can be expressed as SO2 inppm. F_clamp represents the long-term parking clamping force, expressed in N. High clamping force can exacerbate localized corrosion due to oxygen concentration differences. T_park represents the continuous parking time, expressed in hours. a0, a1, a2, a3, a4, a5, and a6 are coefficients obtained from the regression analysis of bench test data, and ε1 is the error term. H, T, S_naCl, P_poll, F_clamp, and T_park are all factors that affect the rusting of vehicle brake discs.

[0036] The rust rate R_rust is a function of multiple environmental and mechanical factors, and can be represented by the general multivariate linear model described above.

[0037] Step S22: Calculate the current rust removal rate of the brake disc based on the following functional relationship of the brake disc rust removal rate and corresponding factors; R_clean=b0+b1*P_brake+b2*ω+b3*μ+b4*N_brake+ε2; Where R_clean represents the rust removal rate, i.e., the amount of rust removed in a single braking event, with units of μm / event or mg / event; P_brake represents the braking pressure, with units of Pa; ω represents the initial braking velocity, with units of rad / s or km / h; μ represents the coefficient of friction, which is related to the material and surface condition of the brake disc and can be considered a constant or slowly changing parameter; N_brake represents the number of consecutive braking events, with units of times, considering the cumulative effect during continuous braking and rust removal; b0, b1, b2, b3, and b4 are coefficients obtained from regression analysis of bench test data; and ε2 is the error term. P_brake, ω, μ, and N_brake are all factors affecting the rust removal of the vehicle's brake disc.

[0038] The rust removal rate R_clean is mainly related to the energy of the braking behavior itself, and can be represented by the general multivariate linear model mentioned above.

[0039] The execution order of steps S21 and S22 is not important. During vehicle operation, the following data are acquired in real time through corresponding sensors: H, T, S_naCl, P_poll, F_clamp, and T_park, which are factors affecting brake disc rust, and P_brake, ω, μ, and N_brake, which are factors affecting brake disc rust removal. These data are then substituted into the corresponding functions mentioned above to obtain the current rust rate and rust removal rate of the brake disc.

[0040] In this embodiment, as Figure 1 and Figure 6 As shown, the dynamic rust removal method for brake discs also includes the following steps: Step S9: After calibrating multiple factors affecting brake disc rusting and rust removal through bench tests, construct the functional relationship between brake disc rusting rate and brake disc rust removal rate.

[0041] Understandably, the two functional relationships mentioned above need to be established through bench testing and calibration, a step that can be performed in a controlled laboratory environment. Specifically, when calibrating the factors affecting the rust rate of the brake disc, the following steps are required.

[0042] The first step is to design an environmental simulation test bench. A sealed environmental chamber is built, in which the temperature, humidity, salt spray concentration, and pollutant concentration can be precisely controlled, and the braking system assembly to be tested is placed.

[0043] The second step is to design a mechanical state simulation. The test bench needs to be equipped with an actuator that can drive the EMB (electromechanical braking system) to simulate different clamping forces and parking times.

[0044] The third step is to select factor levels. Using experimental design, multiple representative levels are selected for each factor; for example, humidity can be tested at 30%, 60%, 85%, and 95%. These different levels of factors are then freely combined to conduct the experiment.

[0045] The fourth step is to conduct the test. Long-term testing (e.g., hundreds of hours) is performed under each combination of conditions.

[0046] The fifth step is to measure the rust rate of the brake disc. Three methods are typically used: direct weighing, morphological analysis, and electrochemical methods. When using the direct weighing method, the mass changes of the brake disc and caliper's key components are precisely weighed before and after the test, and the mass loss per unit time (in mg / day) is calculated. When using the morphological analysis method, the rust layer thickness at specific points on the brake disc surface is periodically measured using a laser scanning microscope (in μm / day). When using the electrochemical method, the corrosion current density I_corr (μA / cm²) is directly measured by installing a corrosion current sensor, which is directly related to the corrosion rate.

[0047] When constructing the functional relationship of the brake disc rust rate, the calibration data H, T, S_naCl, P_poll, F_clamp, T_park, and R_rust obtained during the experiment are substituted into the following formula to obtain the coefficients a0, a1, a2, a3, a4, a5, a6, and ε1 through regression analysis.

[0048] R_rust=a0+a1*H+a2*T+a3*S_naCl+a4*P_poll+a5*F_clamp+a6*T_park+ε1.

[0049] For example, the rust rate calibration data is shown in the table below:

[0050] The following steps are required when calibrating the factors that affect the rust removal rate of brake discs.

[0051] The first step is to prepare rust samples. A batch of brake discs with a uniform rust layer are pre-grown on a test bench.

[0052] The second step is to design a braking simulation test bench. A dynamometer is used to simulate the vehicle's inertia and drive the rusty brake discs to rotate.

[0053] The third step is to control the braking parameters. This involves controlling the brake caliper assembly to apply different braking pressures, perform different braking durations, and control the initial speed of the brake discs (i.e., vehicle speed).

[0054] The fourth step is to measure the rust removal rate. Common methods include weighing, thickness measurement, and torque monitoring. When using the weighing method, the mass loss of the brake disc (unit: mg / brake-event) is measured after one or more braking cycles. When using the thickness measurement method, the change in rust layer thickness before and after braking is measured. When using the torque monitoring method, the change in the friction coefficient during braking is monitored; the time it takes for the coefficient to recover from an initial low value (slippery) to a stable high value (clean) can indirectly reflect the rust removal efficiency.

[0055] When constructing the functional relationship of the rust removal rate of the brake disc, the calibration data P_brake, ω, μ, N_brake and R_clean obtained during the experiment are substituted into the following formula to obtain the coefficients b0, b1, b2, b3, b4 and ε2 through regression analysis.

[0056] R_clean=b0+b1*P_brake+b2*ω+b3*μ+b4*N_brake+ε2.

[0057] The construction of the functional relationship between the rust removal rate of the brake disc and the construction of the functional relationship between the rust removal rate of the brake disc are carried out in no particular order.

[0058] For example, the rust removal rate calibration data is shown in the table below:

[0059] The above operations complete the construction of the functional relationships between the brake disc rust rate and the brake disc rust removal rate, and preset them in the vehicle's control system, such as the ECU (Electronic Control Unit), for application in actual vehicles to achieve closed-loop control. Then, step S1 can be executed to collect relevant factors in real time for the functional relationships between the brake disc rust rate and the brake disc rust removal rate, in order to calculate the current rust rate and rust removal rate of the brake disc.

[0060] For example, a temperature and humidity sensor can be installed near the wheel hub to monitor the microenvironment of the brake disc and obtain ambient temperature and humidity; a rain / wading sensor can be installed on the vehicle to sense rainfall and wading conditions, serving as a strong correlation signal between salt spray and humidity; existing wheel speed sensors can be installed on the vehicle to calculate vehicle speed and determine vehicle status (such as driving or parking); and the clamping force and braking pressure can be accurately read using the EMB actuator's own sensors. Additionally, optionally, where cost permits, a corrosion current sensor can be installed on the brake disc to directly monitor corrosion.

[0061] After obtaining the above factors, the vehicle's IBC (Integrated Brake Control) or ESC (Electronic Stability Control) can perform data fusion and real-time calculation. The vehicle's control system continuously collects data from the aforementioned sensors and simultaneously calls upon pre-stored functional relationships and coefficients to calculate the rust rate and rust removal rate of the brake discs in real time.

[0062] For example, when a vehicle is parked for an extended period, the rust rate under the current environment can be calculated based on factors such as temperature, humidity, salt spray concentration (inferred from raindrop sensors and historical geographical location), and clamping force. When the driver applies the brakes, the rust removal rate triggered by the braking action is calculated based on information such as the braking pressure and initial braking speed.

[0063] In this embodiment, as Figure 1 and Figure 3 As shown, step S3, which is the step of calculating the current net rust rate based on the functional relationship between the rusting rate and the rust removal rate, specifically includes the following steps: Step S31: Calculate the current net rust rate based on the functional relationship between the rust rate and the rust removal rate; R_net = R_rust - R_clean; Where R_net is the net corrosion rate.

[0064] After calculating the current rust rate and rust removal rate of the brake disc using the aforementioned functional relationship between the rust rate and the rust removal rate of the brake disc, step S31 can be executed, substituting the rust rate and rust removal rate into the aforementioned functional relationship between the rust rate and the rust removal rate to obtain the current net rust rate of the brake disc.

[0065] After obtaining the net corrosion rate, step S4 can be executed to compare the net corrosion rate with a first threshold. The first threshold is a preset value, optionally determined based on the maximum allowable corrosion rate of the brake disc material, with a large safety margin.

[0066] After comparing the magnitudes, the following comparison results will be obtained: net corrosion rate is greater than the first threshold, net corrosion rate is equal to the first threshold, and net corrosion rate is less than the first threshold. Once the comparison results are obtained, step S5 can be executed.

[0067] If the net rust rate is determined to be greater than or equal to a first threshold, the vehicle's rust removal mode is activated. Under safe conditions (e.g., low speed, straight-line driving), the vehicle's regenerative braking function is deactivated during braking, ensuring a sufficiently high rust removal rate so that the net rust rate becomes negative, meaning the rust removal rate exceeds the rusting rate, thus improving the rust removal effect on the brake discs. If the net rust rate is determined to be less than the first threshold, the vehicle's regenerative braking mode is activated, maintaining the vehicle in normal braking mode. This allows the vehicle's hydraulic braking system and electromechanical braking system to work simultaneously, achieving safe braking. The electromechanical braking system converts the vehicle's kinetic energy into electrical energy during braking, achieving kinetic energy recovery.

[0068] In addition, such as Figure 1 and Figure 4 As shown, step S3, which is the step of calculating the current total amount of rust based on the rusting rate and the rust removal rate, specifically includes the following steps: Step S32: If the vehicle does not brake within ΔT, calculate the current total amount of rust according to the following formula; C_rust(t)=C_rust(t-1)+R_rust*ΔT; Where C_rust(t) is the total amount of rust at time t, C_rust(t-1) is the total amount of rust at time t-1, C_rust is a preset, virtual "rust accumulation" state variable, and ΔT is the calculation period, such as 1 hour. ΔT is a preset value, which can be set according to the actual design situation, and is not specifically limited here.

[0069] Step S33: If the vehicle brakes within ΔT, calculate the current total amount of rust according to the following formula; C_rust(t)=C_rust(t-1)-R_clean*ΔT.

[0070] After calculating the current rust rate and rust removal rate of the brake disc using the above-mentioned functional relationship between the rust rate and the rust removal rate of the brake disc, steps S32 and S33 can be executed to substitute the rust rate and rust removal rate into the above-mentioned formula related to the total amount of rust to obtain the current total amount of rust on the brake disc.

[0071] After obtaining the total amount of rust, step S4 can be executed to compare the total amount of rust with the second threshold. In step S4, the second threshold is a preset value, which can optionally be determined based on the impact of rust on braking performance (such as friction coefficient attenuation and clamping force loss). Once the estimated amount of rust reaches a level that affects safety performance, rust removal work must be carried out.

[0072] After comparing the values, the following comparison results will be obtained: total corrosion amount is greater than the second threshold, total corrosion amount is equal to the second threshold, and total corrosion amount is less than the second threshold. Once the comparison results are obtained, step S5 can be executed.

[0073] If the total rust amount is determined to be greater than or equal to the second threshold, the vehicle's rust removal mode is activated. Under safe conditions (e.g., low speed, straight-line driving), the vehicle's regenerative braking function is deactivated during braking, ensuring a sufficiently high rust removal rate and improving the rust removal effect on the brake discs. If the total rust amount is determined to be less than the second threshold, the vehicle's regenerative braking mode is activated, maintaining the vehicle in normal braking mode. This allows the vehicle's hydraulic braking system and electromechanical braking system to work simultaneously, achieving safe braking. The electromechanical braking system converts the vehicle's kinetic energy into electrical energy during braking, achieving kinetic energy recovery.

[0074] When implementing the dynamic rust removal method for brake discs provided in the first aspect of this invention, multiple factors affecting brake disc rusting and rust removal are collected in real time during vehicle operation, providing a data foundation for two mathematical models: the functional relationship between the brake disc rusting rate and the brake disc rust removal rate. Then, based on the collected factors and the preset functional relationships between the brake disc rusting rate and rust removal rate, the current rusting rate and rust removal rate of the brake disc are calculated. Furthermore, based on the functional relationship between the rusting rate and rust removal rate, the current net rust rate of the brake disc is calculated, or the current total rust amount is calculated based on the rusting rate and rust removal rate.

[0075] Then, the obtained net rust rate is compared with a preset first threshold, or the obtained total rust amount is compared with a preset second threshold, in order to determine the vehicle's braking mode when braking is required. If the net rust rate is determined to be greater than or equal to the first threshold, or if the total rust amount is determined to be greater than or equal to the second threshold, the vehicle's rust removal mode is activated, the vehicle's hydraulic braking system is activated to perform pure hydraulic braking on the brake discs, the vehicle's brake energy recovery function is turned off, and the rust removal work on the brake discs is completed. If the net rust rate is determined to be less than the first threshold, or if the total rust amount is determined to be less than the second threshold, the vehicle's brake energy recovery mode is activated, the vehicle's hydraulic braking system and electromechanical braking system are activated simultaneously, the vehicle's brake energy recovery function is activated to perform safe braking on the brake discs and recover braking energy.

[0076] This embodiment, through its unique configuration, can intelligently switch the vehicle's braking mode based on the rust condition of the brake disc. While ensuring vehicle braking safety, it maximizes the recovery of braking energy and performs rust removal on the brake disc to inhibit rust development. Moreover, it eliminates the need to install existing electrostatic rust removal or laser rust removal equipment on the vehicle, thus helping to reduce costs.

[0077] In some embodiments, such as Figures 1 to 5 As shown, the dynamic rust removal method for brake discs also includes the following steps: Step S6: Calculate the current net rust rate based on the functional relationship between the rusting rate and the rust removal rate, and calculate the current total rust amount based on the rusting rate and the rust removal rate.

[0078] Step S7: Determine whether the net rust rate is greater than or equal to the first threshold, and determine whether the total rust amount is greater than or equal to the second threshold.

[0079] Step S8: If the net rust rate is greater than or equal to the first threshold, or the total rust amount is greater than or equal to the second threshold, activate the rust removal mode to start the hydraulic braking system; if the net rust rate is less than the first threshold and the total rust amount is less than the second threshold, activate the braking energy recovery mode to start the hydraulic braking system and the electromechanical braking system.

[0080] It is understood that the dynamic rust removal method for brake discs in the above embodiments only considers the net rust rate or the total rust amount. However, this embodiment considers not only the net rust rate but also the total rust amount. By predicting the rust rate and rust removal rate of the brake disc, the rust condition of the brake disc, such as the net rust rate and the total rust amount, can be determined, making it easier to determine the vehicle's braking mode based on the rust condition.

[0081] Specifically, after calculating the rust rate and rust removal rate, step S31 is used to calculate the current net rust rate of the brake disc, and steps S32 and S33 are used to calculate the current total rust amount of the brake disc. Then, the net rust rate is compared with a first threshold, and the total rust amount is compared with a second threshold. Next, based on the comparison results of the net rust rate with the first threshold and the total rust amount with the second threshold, the vehicle's braking mode is intelligently switched.

[0082] If the net rust rate is determined to be greater than or equal to the first threshold, or the total rust amount is determined to be greater than or equal to the second threshold, then the vehicle's rust removal mode can be activated. If the net rust rate is determined to be less than the first threshold, and the total rust amount is determined to be less than the second threshold, then the vehicle will maintain its normal braking mode, i.e., the brake energy recovery mode. This further enhances the intelligence of the dynamic rust removal process and maximizes brake energy recovery.

[0083] In some embodiments, such as Figure 1 , Figure 4 and Figure 7 As shown, the dynamic rust removal method for brake discs also includes the following steps: Step S10: When the rust removal mode is activated, a prompt message is issued.

[0084] When the vehicle's rust removal mode is activated, the vehicle's control system can send a prompt message to the driver, such as "Automatic brake system maintenance in progress," so that the driver can know the current braking mode of the vehicle.

[0085] It is understood that in the dynamic rust removal method for brake discs provided in the first aspect embodiment of the present invention, the factors affecting the rust rate of the brake disc are calibrated in advance through bench tests, and the functional relationship between various factors and the rust rate of the brake disc is constructed. In addition, the factors affecting the rust removal rate of the friction pads are calibrated in advance through bench tests, and the functional relationship between various factors and the rust removal rate is constructed.

[0086] Then, for the current braking system (hydraulic braking system and electromechanical braking system) of the vehicle, factors affecting brake disc rusting and rust removal are collected in real time and input into the aforementioned two functional relationships (the functional relationship of brake disc rusting rate and the functional relationship of brake disc rust removal rate). Next, the current rusting rate is subtracted from the rust removal rate to obtain the current net rust rate. The current rusting rate and rust removal rate are then substituted into the aforementioned formula related to the total rust amount to obtain the current total rust amount. If the net rust rate is greater than or equal to the first threshold, or if the total rust amount is greater than or equal to the second threshold, the vehicle enters the rust removal mode, and the vehicle's hydraulic braking system operates to perform pure hydraulic braking on the brake disc. At this time, the vehicle's brake energy recovery function is turned off. If the net rust rate is less than the first threshold, or if the total rust amount is less than the second threshold, the vehicle enters the brake energy recovery mode, and the hydraulic braking system and electromechanical braking system operate to perform hydraulic and electric braking on the brake disc. At this time, the vehicle's brake energy recovery function is restored.

[0087] The core idea of ​​this invention is to transform the brake disc corrosion problem from a static, time-based maintenance issue into a dynamic, state-based prediction and control problem. Specifically, by establishing mathematical models of the two dynamic processes of "rusting" and "rust removal" of the brake disc, the net corrosion rate and total corrosion amount of the brake disc are calculated in real time, and the vehicle's braking mode is intelligently switched accordingly. Thus, while ensuring braking safety, it is possible to maximize brake energy recovery and suppress the development of brake disc corrosion.

[0088] This invention, through the aforementioned functional relationships, can accurately determine the current net corrosion rate and total corrosion amount, eliminating the need for sensors on the brake disc to measure corrosion thickness. Furthermore, by predicting the net corrosion rate and total corrosion amount, this invention allows for timely rust removal of the brake disc, ensuring driving safety.

[0089] Based on the same inventive concept, corresponding to the dynamic rust removal method for brake discs in the first aspect of the present invention, the second aspect of the present invention provides a dynamic rust removal system for brake discs that can be installed in the control system of a vehicle.

[0090] like Figures 1 to 8 As shown, the dynamic rust removal system for brake discs according to a second aspect embodiment of the present invention includes a data acquisition module, a data calculation module, a comparison and judgment module, and a mode activation module.

[0091] The data acquisition module is used to collect data in real time on multiple factors affecting the rusting and removal of the vehicle's brake discs while the vehicle is in motion. Specifically, the data acquisition module can execute step S1 in the dynamic rust removal method for brake discs according to the first aspect embodiment.

[0092] The data calculation module is used to calculate the current rust rate and rust removal rate of the brake disc based on multiple factors, the functional relationship between the rust rate and the rust removal rate of the brake disc; furthermore, the data calculation module can also calculate the current net corrosion rate based on the functional relationship between the rust rate and the rust removal rate, or calculate the current total corrosion amount based on the rust rate and the rust removal rate. Specifically, the data calculation module can execute steps S2 and S3 in the dynamic rust removal method for the brake disc of the first aspect embodiment.

[0093] The comparison and judgment module is used to determine whether the net rust rate is greater than or equal to a first threshold, or whether the total rust amount is greater than or equal to a second threshold. Specifically, the comparison and judgment module can execute step S4 in the dynamic rust removal method for brake discs of the first aspect embodiment.

[0094] The mode activation module is used to activate the vehicle's rust removal mode to start the vehicle's hydraulic braking system if the net rust rate is greater than or equal to a first threshold, or if the total rust amount is greater than or equal to a second threshold; otherwise, it activates the vehicle's brake energy recovery mode to start the vehicle's hydraulic braking system and electromechanical braking system. Specifically, the mode activation module can execute step S5 in the dynamic rust removal method for brake discs of the first aspect embodiment.

[0095] In some embodiments, the data calculation module is also capable of executing steps S21, S22, S31, S32 and S33 in the dynamic rust removal method for brake discs of the first aspect embodiment.

[0096] In some embodiments, the data calculation module can also execute step S6 in the dynamic rust removal method for brake discs of the first aspect embodiment. The comparison and judgment module can also execute step S7 in the dynamic rust removal method for brake discs of the first aspect embodiment. The mode activation module can also execute step S8 in the dynamic rust removal method for brake discs of the first aspect embodiment.

[0097] In some embodiments, the dynamic rust removal system for the brake disc further includes an information sending module, which is capable of performing step S10 in the dynamic rust removal method for the brake disc of the first aspect embodiment.

[0098] When the dynamic rust removal system for brake discs provided in the second aspect embodiment of the present invention is in operation, when the vehicle is traveling on the road, the data acquisition module collects multiple factors affecting the rusting and rust removal of the brake disc in real time and transmits them to the data calculation module. Subsequently, the data calculation module calculates the current rusting rate and rust removal rate of the brake disc based on multiple factors and the preset functional relationship between the rusting rate and the rust removal rate of the brake disc. Then, the data calculation module substitutes the obtained rusting rate and rust removal rate into the preset functional relationship between the rusting rate and the rust removal rate to calculate the current net rust rate of the brake disc, or calculates the current total rust amount of the brake disc based on the rusting rate and the rust removal rate.

[0099] Then, the comparison and judgment module compares the obtained net rust rate with a preset first threshold, or compares the obtained total rust amount with a preset second threshold, providing a data basis for intelligent selection of braking mode during vehicle braking. If the net rust rate is determined to be greater than or equal to the first threshold, or if the total rust amount is determined to be greater than or equal to the second threshold, the mode activation module will activate and enter the vehicle's rust removal mode, enabling the vehicle's hydraulic braking system to operate and disabling the vehicle's brake energy recovery function to perform pure hydraulic braking on the brake disc, thus achieving rust removal on the brake disc. If the net rust rate is determined to be less than the first threshold, or if the total rust amount is determined to be less than the second threshold, the mode activation module will activate and enter the vehicle's brake energy recovery mode, enabling the vehicle's hydraulic braking system and electromechanical braking system to operate simultaneously, activating the vehicle's brake energy recovery function to perform safe braking on the brake disc and complete the vehicle's brake energy recovery.

[0100] This embodiment, using the above-described settings, can intelligently select the vehicle's braking method based on the rust condition of the brake disc. While ensuring vehicle braking safety, it maximizes the recovery of braking energy and enables the rust removal function of the brake disc, effectively inhibiting the development of rust. Furthermore, it eliminates the need to install existing electrostatic rust removal equipment or laser rust removal equipment on the vehicle to remove rust from the brake disc, which helps reduce vehicle costs.

[0101] like Figures 1 to 8 As shown, a vehicle according to a third aspect embodiment of the present invention includes a dynamic rust removal system for brake discs as described in the second aspect embodiment.

[0102] Specifically, the vehicle can be a private car, such as a sedan, SUV, MPV, or pickup truck. The vehicle can also be a commercial vehicle, such as a van, bus, small truck, or large semi-trailer. The vehicle can be a new energy vehicle, such as a hybrid electric vehicle or a pure electric vehicle. The vehicle is equipped with both hydraulic and electromechanical braking systems.

[0103] The vehicle uses the aforementioned dynamic rust removal system for the brake discs, which can determine the braking method based on the rust condition of the brake discs before braking, so as to maximize the recovery of braking energy and inhibit the aggravation of brake disc rust while ensuring braking safety.

[0104] like Figures 1 to 7 , Figure 9 As shown, an electronic device according to a fourth aspect embodiment of the present invention includes: at least one processor, a memory, an input / output interface, a communication interface, and a bus. The memory stores a computer program executable by the at least one processor, which, when executed by the at least one processor, enables the at least one processor to perform a dynamic rust removal method for a brake disc as described in the first aspect embodiment. The memory, at least one processor, input / output interface, and communication interface are internally connected to each other via the bus.

[0105] It is understood that the processor can be implemented using a general-purpose CPU (i.e., central processing unit), microprocessor, or one or more integrated circuits, to execute relevant computer programs in order to implement the dynamic rust removal method for the brake disc of the first aspect embodiment.

[0106] The memory primarily comprises a program storage area and a data storage area. The program storage area stores the operating system and at least one application program required for a given function; the data storage area stores data created based on terminal usage. Furthermore, the memory may include high-speed random access memory (RAM) and non-volatile memory, such as at least one disk storage device, flash memory, or other non-volatile solid-state storage device. In some examples, the memory may further include memory remotely located relative to the processor, which can be connected to the device via a network. Examples of such networks include, but are not limited to, the Internet, intranets, local area networks (LANs), mobile communication networks, and combinations thereof.

[0107] Input / output interfaces are used to connect input / output units to enable information input and output. Input / output units can be integrated into the device as components or externally connected to provide corresponding functions. Input units may include touchscreens, microphones, various sensors, etc., while output units may include displays, speakers, vibrators, indicator lights, etc.

[0108] The communication interface is used to connect the communication unit to enable communication and interaction between this device and other devices. The communication unit can perform communication functions via wired or wireless means.

[0109] A bus is a pathway that transmits information between various components of a device, such as processors, memory, input / output interfaces, and communication interfaces.

[0110] like Figures 1 to 7 As shown, according to a fifth aspect embodiment of the present invention, a computer-readable storage medium thereon stores a computer program that, when executed by a processor, implements a dynamic rust removal method for a brake disc as described in the first aspect embodiment.

[0111] The computer-readable storage medium of this invention can be any combination of one or more computer-readable media. The computer-readable medium can be a computer-readable signal medium or a computer-readable storage medium. The computer-readable storage medium can be, but is not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples of computer-readable storage media (a non-exhaustive list) include: electrical connections having one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fibers, and portable compact disk read-only memory (CD-ROM). ROM, optical storage device, magnetic storage device, or any suitable combination thereof. In embodiments of the present invention, a computer-readable storage medium may be any tangible medium containing or storing a program that may be used by or in conjunction with an instruction execution system, apparatus, or device.

[0112] Computer-readable signal media may include data signals propagated in baseband or as part of a carrier wave, carrying computer-readable program code. Such propagated data signals may take various forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination thereof. Computer-readable signal media may also be any computer-readable medium other than computer-readable storage media, capable of sending, propagating, or transmitting programs for use by or in connection with an instruction execution system, apparatus, or device.

[0113] Program code contained on a computer-readable medium may be transmitted using any suitable medium, including but not limited to: wireless, wire, optical fiber, RF, etc., or any suitable combination thereof.

[0114] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0115] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A dynamic rust removal method for brake discs, characterized in that, The steps include the following: Multiple factors affecting brake disc rusting and rust removal are collected in real time while the vehicle is in motion. Based on the functional relationships of multiple factors, the brake disc rust rate, and the brake disc rust removal rate, calculate the current rust rate and rust removal rate of the brake disc. Calculate the current net rust rate based on the functional relationship between the rusting rate and the rust removal rate, or calculate the current total rust amount based on the rusting rate and the rust removal rate. Determine whether the net corrosion rate is greater than or equal to a first threshold, or determine whether the total corrosion amount is greater than or equal to a second threshold; If the net rust rate is greater than or equal to the first threshold, or if the total rust amount is greater than or equal to the second threshold, the vehicle's rust removal mode is activated to start the vehicle's hydraulic braking system. Otherwise, activate the vehicle's regenerative braking mode to engage the vehicle's hydraulic and electromechanical braking systems.

2. The dynamic rust removal method for brake discs according to claim 1, characterized in that, The calculation of the current rust rate and rust removal rate of the brake disc based on multiple factors, the functional relationship between the brake disc rust rate and the functional relationship between the brake disc rust removal rate, includes the following steps: The current rust rate of the brake disc is calculated based on the following functional relationship of the brake disc rust rate and the corresponding factors. R_rust=a0+a1*H+a2*T+a3*S_naCl+a4*P_poll+a5*F_clamp+a6*T_park+ε1; Where R_rust is the rust rate, H is the ambient humidity, T is the ambient temperature, S_naCl is the salt spray concentration, P_poll is the pollutant concentration, F_clamp is the long-term parking clamping force, T_park is the continuous parking time, a0, a1, a2, a3, a4, a5 and a6 are coefficients obtained from the regression analysis of bench test data, ε1 is the error term, and H, T, S_naCl, P_poll, F_clamp and T_park are all factors that affect the rusting of the vehicle's brake disc; The current rust removal rate of the brake disc is calculated based on the following functional relationship of the brake disc rust removal rate and the corresponding factors. R_clean=b0+b1*P_brake+b2*ω+b3*μ+b4*N_brake+ε2; Where R_clean is the rust removal rate, P_brake is the braking pressure, ω is the initial braking velocity, μ is the friction coefficient, N_brake is the number of consecutive braking cycles, b0, b1, b2, b3 and b4 are coefficients obtained from the regression analysis of bench test data, ε2 is the error term, and P_brake, ω, μ and N_brake are all factors affecting the rust removal of the vehicle's brake disc.

3. The dynamic rust removal method for brake discs according to claim 2, characterized in that, The step of calculating the current net rust rate based on the functional relationship between the rusting rate and the rust removal rate includes the following steps: Calculate the current net rust rate based on the following functional relationship between rust rate and rust removal rate; R_net = R_rust - R_clean; Where R_net is the net corrosion rate.

4. The dynamic rust removal method for brake discs according to claim 2 or 3, characterized in that, The calculation of the current total rust amount based on the rusting rate and the rust removal rate includes the following steps: If the vehicle does not brake within ΔT, calculate the current total amount of rust according to the following formula; C_rust(t)=C_rust(t-1)+R_rust*ΔT; Where C_rust(t) is the total amount of rust at time t, C_rust(t-1) is the total amount of rust at time t-1, and ΔT is the calculation period; If the vehicle brakes within ΔT, calculate the current total amount of rust according to the following formula; C_rust(t)=C_rust(t-1)-R_clean*ΔT.

5. The dynamic rust removal method for brake discs according to claim 4, characterized in that, It also includes the following steps: Based on the functional relationship between the rusting rate and the rust removal rate, the current net rust rate is calculated, and based on the rusting rate and the rust removal rate, the current total rust amount is calculated. Determine whether the net corrosion rate is greater than or equal to the first threshold, and determine whether the total corrosion amount is greater than or equal to the second threshold; If the net rust rate is greater than or equal to the first threshold, or the total rust amount is greater than or equal to the second threshold, the rust removal mode is activated to start the hydraulic braking system; if the net rust rate is less than the first threshold and the total rust amount is less than the second threshold, the braking energy recovery mode is activated to start the hydraulic braking system and the electromechanical braking system.

6. The dynamic rust removal method for brake discs according to claim 1, characterized in that, It also includes the following steps: After calibrating multiple factors affecting brake disc rusting and rust removal through bench tests, a functional relationship is constructed between the brake disc rusting rate and the brake disc rust removal rate; and / or, A prompt message is issued when the rust removal mode is activated.

7. A dynamic rust removal system for brake discs, characterized in that, include: The data acquisition module is used to collect multiple factors that affect the rusting and rust removal of the vehicle's brake discs in real time while the vehicle is in motion; The data calculation module is used to calculate the current rust rate and rust removal rate of the brake disc based on multiple factors, the functional relationship between the rust rate and the rust removal rate of the brake disc. It is used to calculate the current net rust rate based on the functional relationship between the rust rate and the rust removal rate, or to calculate the current total rust amount based on the rust rate and the rust removal rate; The comparison and judgment module is used to determine whether the net corrosion rate is greater than or equal to a first threshold, or to determine whether the total corrosion amount is greater than or equal to a second threshold; The mode activation module is used to activate the vehicle's rust removal mode if the net rust rate is greater than or equal to the first threshold, or if the total rust amount is greater than or equal to the second threshold, so as to start the vehicle's hydraulic braking system. Otherwise, activate the vehicle's regenerative braking mode to engage the vehicle's hydraulic and electromechanical braking systems.

8. A vehicle, characterized in that, Includes the dynamic rust removal system for brake discs as described in claim 7.

9. An electronic device, characterized in that, include: At least one processor; as well as, A memory communicatively connected to the at least one processor; wherein the memory stores a computer program executable by the at least one processor, the computer program being executed by the at least one processor to enable the at least one processor to perform the dynamic rust removal method for the brake disc as described in any one of claims 1 to 6.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that, When executed by the processor, the program implements the dynamic rust removal method for the brake disc as described in any one of claims 1 to 6.

Images