Torsion sensor anti-interference method and system, storage medium and intelligent terminal

Abstract

The invention relates to a torsion sensor anti-interference method and system, a storage medium and an intelligent terminal, and relates to the field of torsion sensors, and the method comprises the steps: obtaining an indication signal; when the indication signal is the preset installation signal, the rotating part of the anti-interference cover is controlled to be opened, and the dustproof cover is controlled to be opened; when the indication signal is a preset installation completion signal, the rotating part is controlled to be closed; when the indication signal is the preset taking-out signal, the rotating part is controlled to be opened; and when the indication signal is a preset taking-out completion signal, the rotating part is controlled to be closed, and the dustproof cover is controlled to be closed. According to the application, the metal anti-interference cover is arranged, and then different opening and closing schemes are adopted under different conditions, so that electromagnetic shielding is carried out on the torsion sensor while the torsion sensor is convenient to take out; interference of an external magnetic field on the torsion sensor is avoided, and the accuracy of data sensing of the torsion sensor is improved.

Description

Technical Field

[0001] The present application relates to the field of torque sensors, and in particular to a torque sensor anti-interference method, system, storage medium and intelligent terminal. Background Art

[0002] Torque sensors are widely used in automobiles, mainly for monitoring the torque output of engines, transmissions and other drive systems. Installing a torque sensor on the output shaft of the engine is used to monitor the torque generated by the engine. Installing a torque sensor on the input shaft of an automatic or manual transmission can monitor the torque transmitted from the engine to the transmission. In some advanced vehicles, torque sensors can be installed on certain components of the suspension system to monitor the stress of the suspension system and optimize the performance of the suspension system.

[0003] Reference Figure 1 A torque sensor includes a housing 1, an output shaft 11, a turntable 12, a first magnetic block 14 and a main board 15. The output shaft 11 and the first magnetic block 14 are both rotatably connected to the housing 1, the main board 15 is fixedly connected to the housing 1, and the main board 15 is also provided with a second magnetic block 16 facing the first magnetic block 14, the first magnetic block 14 and the second magnetic block 16 cooperate to form a uniform magnetic field, the first magnetic block 14 and the output shaft 11 are gear-driven to change the magnetic field, the turntable 12 is fixedly connected to the output shaft 11, and the turntable 12 is provided with a plurality of cutting blades 13 along the circumferential direction, when the turntable 12 rotates, the cutting blades 13 cut the magnetic field in turn to change the magnetic flux received on the main board 15, so as to convert the magnetic flux into torque for output through the control system on the main board 15, and the housing 1 is provided with a connection port 17 connected to the outside, the connection port 17 is electrically connected to the main board 15, so as to transmit the torque to the central control system of the car through the connection port 17.

[0004] The prior art has the following problems: the torque sensor converts the torque into output by cutting the magnetic field, and is easily disturbed by the external magnetic field, resulting in inaccurate torque on the torque sensor. There is still room for improvement. Summary of the invention

[0005] In order to improve the problem that the torque sensor converts the torque into output by cutting the magnetic field and is easily interfered by the external magnetic field, thus causing inaccurate torque on the torque sensor, the present application provides a torque sensor anti-interference method, system, storage medium and smart terminal.

[0006] In a first aspect, the present application provides a method for preventing interference of a torque sensor, which adopts the following technical solution: A method for preventing interference of a torque sensor, comprising: Obtaining an indication signal; When the indication signal is a preset installation signal, the rotating part of the anti-interference cover is controlled to open and the dust cover is controlled to open, the anti-interference cover includes a mounting post and two rotating parts, the two rotating parts are rotatably connected to the mounting post, the two rotating parts cooperate to form a cavity for shielding the torque sensor, one of the rotating parts is provided with a connection port for exposing the connection port, the rotating part provided with the connection port is rotatably connected with a dust cover covering the connection port, and the rotating part is provided with a grounding wire connected to the negative pole of the car battery or the chassis; When the indication signal is a preset installation completion signal, the rotating part is controlled to close; When the indication signal is a preset removal signal, the rotating part is controlled to open; When the indication signal is a preset removal completion signal, the rotating part is controlled to be closed and the dust cover is controlled to be closed.

[0007] By adopting the above technical solution, a metal anti-interference cover is set up, and then different opening and closing schemes are adopted in different situations, so as to ensure that the torque sensor is easy to take out and electromagnetically shield the torque sensor at the same time, so as to avoid interference of the external magnetic field on the torque sensor, thereby improving the accuracy of the torque sensor data sensing.

[0008] Optionally, the method further includes a subsequent method of controlling the rotation part to close when the indication signal is an installation completion signal, the method comprising: Performing a torque detection test step, the torque detection test step comprising: obtaining shielding torque; obtaining opening torque after controlling the rotating part to open; When the shielding torque and the opening torque are different, the rotating part is controlled to close; When the shielding torque and the opening torque are the same, the rotating part is kept open and a current torque curve is obtained; When the current torque curve reaches a preset mutation point, the rotating part is controlled to close; When there is no mutation point in the current torque curve, the rotating part continues to be opened until a mutation point or a new indication signal appears.

[0009] By adopting the above technical solution, it is detected whether the torque is different by opening and closing. If the torque is different, it means that there is an interfering magnetic field in the outside world, and it is closed. If the torque is the same, it means that there is no interfering magnetic field in the outside world, and it can be opened. Under the condition of ensuring the anti-interference effect, it is as convenient as possible for the staff to take it out; on the other hand, it also prevents the internal heat from being too high and affecting the operation of the torque sensor.

[0010] Optionally, the method of continuing to maintain the opening of the rotating part when the current torque curve does not have a sudden change point includes: Get the torque sensor life and current torque sensor operation time; Determining the degree of operation based on the current torque sensor operation time and the torque sensor life; Calculate the current opening angle based on the degree of work and the preset full opening angle; The control rotating part is maintained open according to the current opening angle.

[0011] By adopting the above technical solution, the closer it is to its service life, the more likely it is to be replaced, so the higher the degree of opening, the higher the efficiency of opening, and the closer it is to the initial installation stage, the less likely it is to have problems, the less likely it is to be replaced, and the lower the possibility of removal, so shielding is more needed at this time, the closer it is to the closed state, the smarter the opening of the anti-interference cover in the absence of external magnetic field interference.

[0012] Optionally, another method for controlling the rotating part to maintain opening after determining the working degree is also included, the method comprising: When the working degree is less than the preset damage judgment critical degree, the ambient temperature and the internal temperature are obtained; Calculate the temperature difference based on the internal temperature and the ambient temperature; When the temperature difference is greater than a preset critical value requiring rapid heat dissipation, the rotating part is controlled to open according to a preset maximum heat dissipation angle; When the temperature difference is less than the critical value of the difference requiring rapid heat dissipation, the rotating part is controlled to open according to a preset heat exchange opening angle; When the working degree is greater than the critical degree of damage judgment, the rotating part is controlled to open according to the current opening angle.

[0013] By adopting the above technical solution, in the previous stage where there will be no damage at all, the heat dissipation demand is considered. If the internal temperature is high and heat dissipation is needed, different angles need to be set. If there is no heat dissipation demand, a small opening is opened to prevent external debris from entering; and a large opening is opened when damage will occur, thereby improving the intelligence of opening the anti-interference cover in the absence of external magnetic field interference.

[0014] Optionally, the method of controlling the rotating part to open according to the maximum heat dissipation angle includes: Continue to calculate the temperature difference; When the temperature difference is less than a preset damage critical temperature difference, the rotating part is controlled to open at a maximum heat dissipation angle; When the temperature difference is greater than a critical damage temperature difference, determining a rate of change based on the temperature difference; Calculate the damage temperature difference based on the internal temperature and the damage critical temperature; Calculate the change duration based on the temperature difference, the damage critical temperature difference and the change rate; When the change duration is less than the preset short-time critical duration, the rotating part is controlled to open according to the maximum heat dissipation angle; When the changing time length is greater than the short-time critical time length, the rotating part is controlled to open according to the maximum heat dissipation angle, and to shake according to the preset heat dissipation shaking amplitude.

[0015] By adopting the above technical solution, if the heat dissipation demand is large and simply opening the shielding cover cannot meet the demand for rapid heat dissipation, then shaking heat dissipation is added to allow air to circulate, thereby improving the heat dissipation efficiency of the anti-interference cover.

[0016] Optionally, a method for checking the current opening angle is also included, the method comprising: Control the closing of the rotating part and obtain the actual rotation angle; When the actual rotation angle no longer changes, the actual rotation angle is compared with a preset zero angle; When the actual rotation angle is zero, the current opening angle is output normally; When the actual rotation angle is not zero, the actual rotation angle is corrected based on the zero angle.

[0017] By adopting the above technical solution, the opening angle can be checked by fitting the output shaft of the torque sensor. If no rotation occurs during the closing process, it means that the torque sensor has been fitted. If the angle is not zero at this time, it means that the angle is incorrect. If it is zero, it means that the angle is correct, thereby improving the accuracy of the angle check.

[0018] Optionally, a subsequent method for maintaining the opening of the rotating part when the shielding torque and the opening torque are the same is also included, the method comprising: Get the current vehicle speed; When the current vehicle speed is zero, the rotating part is closed and the current torque curve and the current time are obtained; When the shielding torque corresponding to the current time in the current torque curve is not zero, a preset shielding cover failure signal is output; Determining the torque change rate based on the open torque when the shielding torque corresponding to the current time in the current torque curve is zero; Keep the rotating part open when the torque change speed is zero; When the torque change speed is not zero, a shield failure signal is output.

[0019] By adopting the above technical solution, when the torque is the same, it may be the cause of the electromagnetic field failure. At this time, the internal magnetic field is kept static, so no torque is generated. If torque is generated at this time, it means that there is a changing magnetic field outside, which causes the magnetic field to be cut, thereby generating torque. Therefore, the shielding cover fails at this time, which improves the efficiency of shielding cover fault identification.

[0020] In a second aspect, the present application provides a torque sensor anti-interference system, which adopts the following technical solution: A torque sensor anti-interference system, comprising: An acquisition module, used to acquire an indication signal, shielding torque, opening torque, ambient temperature, internal temperature, actual rotation angle, current vehicle speed and current time; A memory, used to store a program of a control method of any of the above-mentioned torque sensor anti-interference methods; The program in the processor memory can be loaded and executed by the processor to implement any of the above-mentioned torque sensor anti-interference methods.

[0021] By adopting the above technical solution, a metal anti-interference cover is set up, and then different opening and closing schemes are adopted in different situations, so as to ensure that the torque sensor is easy to take out and electromagnetically shield the torque sensor at the same time, so as to avoid interference of the external magnetic field on the torque sensor, thereby improving the accuracy of the torque sensor data sensing.

[0022] In the third aspect, the present application provides a smart terminal, which adopts the following technical solution: The intelligent terminal includes a memory and a processor, wherein the memory stores a computer program that can be loaded by the processor and execute any of the above-mentioned torque sensor anti-interference methods.

[0023] By adopting the above technical solution, a metal anti-interference cover is set up, and then different opening and closing schemes are adopted in different situations, so as to ensure that the torque sensor is easy to take out and electromagnetically shield the torque sensor at the same time, so as to avoid interference of the external magnetic field on the torque sensor, thereby improving the accuracy of the torque sensor data sensing.

[0024] Fourthly, the present application provides a computer storage medium that can store corresponding programs and has the characteristics of fast interaction with memory big data.

[0025] Computer readable storage medium, using the following technical solution: A computer-readable storage medium stores a computer program that can be loaded by a processor and execute any one of the above-mentioned torque sensor anti-interference methods.

[0026] By adopting the above technical solution, a metal anti-interference cover is set up, and then different opening and closing schemes are adopted in different situations, so as to ensure that the torque sensor is easy to take out and electromagnetically shield the torque sensor at the same time, so as to avoid interference of the external magnetic field on the torque sensor, thereby improving the accuracy of the torque sensor data sensing.

[0027] In summary, the present application includes at least the following beneficial technical effects: By setting a metal anti-interference cover and then adopting different opening and closing schemes in different situations, the torque sensor can be easily taken out and electromagnetically shielded to avoid interference of the external magnetic field on the torque sensor, thereby improving the accuracy of the torque sensor data sensing; By opening and closing, the torque is detected to see if it is different. If the torque is different, it means that there is an interfering magnetic field in the outside world. If there is no interfering magnetic field outside, it can be opened, and it is as convenient as possible for the staff to take it out while ensuring the anti-interference effect; If there is no interfering magnetic field outside, it can be opened to prevent excessive internal heat from affecting the operation of the torque sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is an exploded schematic diagram of a torque sensor in the related art.

[0029] Figure 2 It is a flow chart of a torque sensor anti-interference method in an embodiment of the present application.

[0030] Figure 3 It is a schematic diagram of the structure of the anti-interference cover and the torque sensor in the embodiment of the present application.

[0031] Figure 4 It is a flow chart of a subsequent method for controlling the closing of the rotating part when the indication signal is an installation completion signal in an embodiment of the present application.

[0032] Figure 5 It is a flow chart of a method for maintaining the opening of the rotating part when there is no sudden change point in the current torque curve in an embodiment of the present application.

[0033] Figure 6 It is a flow chart of another method for controlling the rotating part to remain open after determining the working degree in an embodiment of the present application.

[0034] Figure 7 It is a flow chart of a method for controlling a rotating part to open according to a maximum heat dissipation angle in an embodiment of the present application.

[0035] Figure 8 It is a flow chart of the method for checking the current opening angle in an embodiment of the present application.

[0036] Fig. 9 It is a flow chart of a subsequent method for maintaining the opening of the rotating part when the shielding torque and the opening torque are the same in an embodiment of the present application.

[0037] Fig.10 It is a system module diagram of a torque sensor anti-interference method in an embodiment of the present application.

[0038] Explanation of the accompanying drawings: 1. Shell; 11. Output shaft; 12. Turntable; 13. Cutting disc; 14. First magnetic block; 15. Main board; 16. Second magnetic block; 17. Connection port; 2. Mounting column; 21. Rotating part; 22. Cavity; 23. Connection port; 24. Dust cover; 25. Ground wire. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solutions and advantages of this application more clear, the following Figure 2-Figure 10 It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0040] The present application embodiment discloses a method for preventing interference of a torque sensor. Figure 2 , a torque sensor anti-interference method includes: Step 100: Obtain an indication signal.

[0041] The indication signal is a signal input manually to operate the protective cover, which can be obtained by pressing a corresponding button manually.

[0042] Step 101 : When the indication signal is a preset installation signal, the rotating portion 21 is controlled to open and the dust cover 24 is controlled to open.

[0043] Reference Figure 3 The anti-interference cover includes a mounting post 2 and two rotating parts 21. The two rotating parts 21 are rotatably connected to the mounting post 2. The two rotating parts 21 cooperate to form a cavity 22 for shielding the torque sensor. One of the rotating parts 21 has a connection port 23 that exposes the connection port 17, so as to facilitate the insertion of the data line into the connection port 17 through the connection port 23. A dust cover 24 covering the connection port 23 is rotatably connected to the rotating part 21 with the connection port 23, so that when the connection port 17 is not needed, the cavity 22 formed by the rotating part 21 is closed. The rotating part 21 has a grounding wire 25 connected to the negative pole of the car battery or the chassis to better guide the extra current to the ground and enhance the shielding capability.

[0044] The installation signal is a signal that the torque sensor needs to be installed. When the indication signal is the installation signal, avoidance is required, so both are fully opened at this time.

[0045] It should be noted that the rotating part 21 can be controlled by any driving source, for example, a motor drives a gear, and then the gear drives the rotating part to rotate.

[0046] Step 102: When the indication signal is a preset installation completion signal, the rotating part 21 is controlled to close.

[0047] The installation completion signal is a signal indicating that the torque sensor has been installed. When the installation is completed, it means that the installation is completed. At this time, in order to prevent the outside from interfering with the torque sensor, the rotating part 21 is closed. At this time, since the data line is connected to the connection port 23 and the connection port 17, the dust cover 24 is not closed.

[0048] Step 103: When the indication signal is a preset taking-out signal, control the rotating part 21 to open.

[0049] The removal signal is a signal indicating that the torque sensor needs to be removed. When the torque sensor needs to be removed, the rotating part 21 can be opened.

[0050] Step 104 : When the indication signal is a preset removal completion signal, the rotating portion 21 is controlled to be closed and the dust cover 24 is controlled to be closed.

[0051] The removal completion signal is a signal that the torque sensor has been removed. When the removal is complete, the rotating part 21 can be covered and the dust cover 24 can be covered, so that the entire anti-interference cover is completely closed and not easily contaminated by dust.

[0052] Reference Figure 4 , and also includes a subsequent method for controlling the rotation part 21 to close when the indication signal is an installation completion signal, the method comprising: Step 200: Perform a torque detection test step.

[0053] The torque detection test step is a test step for detecting the torque in order to determine whether there is magnetic field interference from the outside.

[0054] The torque detection test steps include: Step 2000: Obtain shielding torque.

[0055] The shielding torque is the internal torque when the anti-interference cover covers the torque sensor and completely shields the external magnetic field. The acquisition method is to directly read the data output on the torque sensor. It should be noted here that at this time, the rotating part 21 is closed and the dust cover 24 is open.

[0056] Step 2001: Control the rotating part 21 to open and obtain the opening torque.

[0057] Open torque is the torque sensor that is completely open without covering it with an anti-interference cover. If there is a magnetic field outside, the internal torque can be obtained by directly reading the data output by the torque sensor.

[0058] Step 201: When the shielding torque and the opening torque are different, the rotating part 21 is controlled to close.

[0059] When the shielding torque and the opening torque are different, it means that the cutting magnetic fields are different. Therefore, there is a magnetic field in the outside world at this time, so it is necessary to shield the external interference magnetic field and control the rotating part 21 to close.

[0060] Step 202: When the shielding torque and the opening torque are the same, the rotating part 21 is kept open and a current torque curve is obtained.

[0061] The current torque curve is a curve of the output torque and time. The method of obtaining it here is to draw it according to the torque and time obtained at every moment.

[0062] When the shielding torque and the open torque are the same, it means that the torque and magnetic field are the same, so there is no magnetic field outside. However, since it is impossible to detect it all the time, and the torque will change instantly when a magnetic field appears, it is only necessary to monitor the torque curve.

[0063] Step 203: When the current torque curve has a preset mutation point, the rotating part 21 is controlled to close.

[0064] The mutation point is a point in the curve where the curvature of the previous curve changes abruptly, or the coordinate point is completely different. When a mutation point appears, it means that an abnormality exists at this time, and there is a high possibility of external interference magnetic field at this time, so the rotating part 21 is controlled to close.

[0065] Step 204: When there is no mutation point in the current torque curve, the rotating part 21 is kept open until a mutation point appears or a new indication signal appears.

[0066] When there is no sudden change point in the current torque curve, it means that there is no interference magnetic field in the outside world, so the rotating part 21 can continue to be opened.

[0067] Reference Figure 5 The method of continuing to open the rotating part 21 when there is no sudden change point in the current torque curve includes: Step 300: Obtain the torque sensor life and the current torque sensor operation time.

[0068] The life of the torque sensor is the service life of the torque sensor without external influences. It is input by the staff in this field according to the user manual provided by the manufacturer and their own experience. The current torque sensor operation time is the length of time the current torque sensor has been working. It is obtained by starting the timing when the torque sensor is installed in this position and the car starts to be used.

[0069] Step 301: Determine the working degree based on the current torque sensor operation time and the torque sensor life.

[0070] The working degree is the degree of the life span of the torque sensor that has been working. The method of determining here is to divide the current operating time of the torque sensor by the life span of the torque sensor.

[0071] Step 302: Calculate the current opening angle based on the working degree and the preset full opening angle.

[0072] The full opening angle is the fully opened angle. Here, when the current torque sensor operation time is the same as the torque sensor life, it means that it has reached its service life and needs to be scrapped to avoid abnormal situations. The current opening angle is the angle that can be opened now, close to fully open or closed.

[0073] Step 303: Control the rotating portion 21 to maintain opening according to the current opening angle.

[0074] The closer it is to its service life, the more likely it is to be replaced, so the higher the degree of opening, the higher the efficiency of opening. The closer it is to the initial installation stage, the less likely it is to have problems and the less likely it is to be replaced, so the possibility of removal is lower. Therefore, shielding is more needed at this time, and the closer it is to the closed state, the smarter the opening of the anti-interference cover is in the absence of external magnetic field interference.

[0075] Reference Figure 6 , and also includes another method of controlling the rotating part 21 to maintain opening after determining the working degree, the method comprising: Step 400: Acquire the ambient temperature and the internal temperature when the working degree is less than the preset damage judgment critical degree.

[0076] The critical degree of damage judgment is the degree to which damage may occur at any time and anywhere if this value is exceeded. Here, this degree is obtained by humans based on long-term use. The ambient temperature is the temperature of the environment outside the anti-interference cover. The internal temperature is the temperature inside the anti-interference cover. Here, both are obtained by the temperature sensor.

[0077] Step 401: Calculate the temperature difference based on the internal temperature and the ambient temperature.

[0078] The temperature difference is the difference between the internal and external temperatures. The calculation method is to subtract the ambient temperature from the internal temperature. The purpose of the calculation here is to determine the temperature of the torque sensor that still rises under the influence of the environment. On the one hand, if the ambient temperature is high, then if it still rises on this basis, it means that the internal temperature continues to rise; similarly, if the ambient temperature is low, it will be affected by the environment itself and even if the heat generated is high, it will not make the internal environment higher.

[0079] Step 402: When the temperature difference is greater than a preset critical value requiring rapid heat dissipation, the rotating portion 21 is controlled to open according to a preset maximum heat dissipation angle.

[0080] The critical value of the difference in rapid heat dissipation is the critical value at which the internal temperature is too high and needs to be dissipated as soon as possible, otherwise it will affect the service life of the torque sensor. This value is set manually. The maximum heat dissipation angle is the angle at which the rotating part 21 is fully opened in order to dissipate heat as quickly as possible. It is measured by a person skilled in the art based on the actual maximum opening angle. When the temperature difference is greater than the critical value of the difference in rapid heat dissipation, it means that rapid heat dissipation is required at this time, so it is opened at the maximum heat dissipation angle at this time.

[0081] Step 403: When the temperature difference is less than the critical value requiring rapid heat dissipation, the rotating part 21 is controlled to open according to a preset heat exchange opening angle.

[0082] The heat exchange opening angle is a conventional angle that only maintains the heat exchange function. Here, this angle is an angle less than the maximum heat dissipation angle. It is set by humans. The purpose is to perform heat exchange.

[0083] Step 404: When the working degree is greater than the damage judgment critical degree, the rotating part 21 is controlled to open according to the current opening angle.

[0084] When the working degree is greater than the critical degree of damage judgment, damage may occur at any time and place, so open it first.

[0085] Reference Figure 7 The method of controlling the rotating part 21 to open at the maximum heat dissipation angle includes: Step 500: Continue calculating the temperature difference.

[0086] Step 501: When the temperature difference is less than a preset damage critical temperature difference, the rotating part 21 is controlled to open at a maximum heat dissipation angle.

[0087] The critical temperature difference of damage is the temperature difference that causes damage even though it is opened at the maximum heat dissipation angle, but the heat cannot overflow quickly. Here, the difference is the difference that exceeds the critical value of the difference that requires rapid heat dissipation, that is, simply meeting the critical value of the rapid heat dissipation difference is not enough, and additional operations are required to further speed up the heat dissipation. When the temperature difference is less than the critical temperature difference of damage, it means that it has not yet reached the point of damage, and it only needs to be opened at the maximum heat dissipation angle.

[0088] Step 502: Determine a change rate based on the temperature difference when the temperature difference is greater than a damage critical temperature difference.

[0089] The rate of change is the rate of change of the temperature difference. The calculation method is to subtract two temperature differences that are close to each other in time and divide them by the interval time. The interval time is as close as possible, for example: 0.01 seconds.

[0090] Step 503: Calculate the change duration based on the temperature difference, the damage critical temperature difference and the change rate.

[0091] The change duration is the time required for the temperature difference to change to less than the critical temperature difference for damage. It is calculated by subtracting the quotient of the temperature difference from the critical temperature difference for damage and dividing it by the change rate. What is calculated here is the time required to open at the maximum heat dissipation angle and then exchange heat naturally.

[0092] Step 504: When the change duration is less than the preset short-term critical duration, the rotating part 21 is controlled to open at the maximum heat dissipation angle.

[0093] If the short critical time is less than this time, it means that the temperature difference can be quickly restored to the time when it is less than the damage critical temperature difference. If it is less than, it means that damage can be avoided quickly, and no other measures need to be taken, and the rotating part 21 only needs to be controlled to open at the maximum heat dissipation angle.

[0094] Step 505: When the change duration is greater than the short-term critical duration, the rotating part 21 is controlled to open at the maximum heat dissipation angle and to shake at a preset heat dissipation shaking amplitude.

[0095] The heat dissipation shaking amplitude is the amplitude that needs to be shaken to increase the air flow in order to increase the heat dissipation. It is set manually. When the change duration is greater than the short-term critical duration, it means that it cannot be recovered quickly. At this time, it is not only necessary to control the rotating part 21 to open according to the maximum heat dissipation angle, but also to take other measures, which is shaking, so shaking is performed according to the heat dissipation shaking amplitude.

[0096] Reference Figure 8 , and also includes a method for checking the current opening angle, the method comprising: Step 600: Control the rotating part 21 to close and obtain the actual rotation angle.

[0097] The actual rotation angle is the angle rotated after the rotating part 21 is closed. Theoretically, the angle when closed is set to 0.

[0098] Step 601: When the actual rotation angle no longer changes, compare the actual rotation angle with a preset zero angle.

[0099] The zero angle is an angle of 0. When the actual rotation angle no longer changes, it means that the torque sensor has abutted against the output shaft 11, and the actual rotation angle is 0 in theory.

[0100] Step 602: When the actual rotation angle is zero, the current opening angle is normally output.

[0101] When the actual rotation angle is zero, it means that any current opening angle at this time is accurate and the current opening angle can be opened normally.

[0102] Step 603: Correct the actual rotation angle based on the zero angle when the actual rotation angle is not zero.

[0103] If the actual rotation angle is not zero, it means that the angle is incorrect and needs to be corrected. Then correct the actual rotation angle to 0 and then start opening again.

[0104] Reference Fig. 9 , and also includes a subsequent method for maintaining the rotating part 21 open when the shielding torque and the opening torque are the same, the method comprising: Step 700: Obtain the current vehicle speed.

[0105] The current vehicle speed is the current speed of the vehicle, which is obtained by the central control system.

[0106] Step 701: When the current vehicle speed is zero, close the rotating part 21 and obtain the current torque curve and the current time.

[0107] The current torque curve is the internal torque curve when the current vehicle speed is zero. The current time is the current time. It is obtained by timing by the timer. Here, the current vehicle speed can be recorded as zero time, and then the accumulation begins. When the current vehicle speed is zero, it means that the torque sensor is not working at this time, the magnetic field will not be cut, and the anti-interference cover is closed, so the external magnetic field will not interfere with the internal torque sensor. The torque at this time should be zero, and in order to monitor the change of torque in real time, the current torque curve will continue to be obtained at this time.

[0108] Step 702: Output a preset shielding cover failure signal when the shielding torque corresponding to the current time in the current torque curve is not zero.

[0109] The shield failure signal is a signal of the shield failure. Here, the signal can be output in the form of text. When the shield torque corresponding to the current time in the current torque curve is not zero, it means that the magnetic field is still cut and interfered by the external magnetic field, so it means that the anti-interference cover fails, so the shield failure signal is output.

[0110] Step 703: When the shielding torque corresponding to the current time in the current torque curve is zero, continue to maintain the rotating part 21 open.

[0111] When the shielding torque corresponding to the current time in the current torque curve is zero, it at least indicates that no problem with the anti-interference cover has been found yet, and the rotating part 21 continues to be maintained open.

[0112] Based on the same inventive concept, an embodiment of the present invention provides a torque sensor anti-interference system.

[0113] Reference Fig.10 , a torque sensor anti-interference system, comprising: An acquisition module, used to acquire an indication signal, shielding torque, opening torque, ambient temperature, internal temperature, actual rotation angle, current vehicle speed and current time; A memory for storing a program of a control method for an anti-interference method for a torque sensor; The program in the memory can be loaded and executed by the processor to implement a control method for the anti-interference method of the torque sensor.

[0114] Those skilled in the art can clearly understand that for the convenience and simplicity of description, only the division of the above-mentioned functional modules is used as an example. In actual applications, the above-mentioned functions can be assigned to different functional modules as needed, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above. The specific working process of the system, device and unit described above can refer to the corresponding process in the aforementioned method embodiment, and will not be repeated here.

[0115] An embodiment of the present invention provides a computer-readable storage medium storing a computer program that can be loaded and executed by a processor and that is capable of implementing an anti-interference method for a torque sensor.

[0116] Computer storage media include, for example, various media that can store program codes, such as USB flash drives, mobile hard disks, read-only memories (ROM), random access memories (RAM), magnetic disks or optical disks.

[0117] Based on the same inventive concept, an embodiment of the present invention provides an intelligent terminal, including a memory and a processor, wherein the memory stores a computer program that can be loaded by the processor and executed by a torque sensor anti-interference method.

[0118] The above are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Any feature disclosed in this specification (including the abstract and drawings), unless otherwise stated, can be replaced by other equivalent or alternative features with similar purposes. That is, unless otherwise stated, each feature is only an example of a series of equivalent or similar features.

Claims

1. A method for preventing interference of a torque sensor, characterized in that: include: Obtaining an indication signal; When the indication signal is a preset installation signal, the rotating part (21) of the anti-interference cover is controlled to open and the dust cover (24) is controlled to open, the anti-interference cover comprises a mounting post (2) and two rotating parts (21), the two rotating parts (21) are rotatably connected to the mounting post (2), the two rotating parts (21) cooperate to form a cavity (22) for shielding the torque sensor, one of the rotating parts (21) is provided with a connection port (23) exposing the connection port (17), the rotating part (21) provided with the connection port (23) is rotatably connected with a dust cover (24) covering the connection port (23), and the rotating part (21) is provided with a grounding wire (25) connected to the negative pole of the vehicle battery or the chassis; When the indication signal is a preset installation completion signal, the rotating part (21) is controlled to close; When the indication signal is a preset removal signal, the rotating part (21) is controlled to open; When the indication signal is a preset removal completion signal, the rotating part (21) is controlled to be closed and the dust cover (24) is controlled to be closed.

2. A method for preventing interference of a torque sensor according to claim 1, characterized in that: Also included is a subsequent method for controlling the rotating part (21) to close when the indication signal is an installation completion signal, the method comprising: A torque detection test step is performed, the torque detection test step comprising: obtaining shielding torque; obtaining opening torque after controlling the rotating part (21) to open; When the shielding torque and the opening torque are different, the rotating part (21) is controlled to close; When the shielding torque and the opening torque are the same, the rotating part (21) is kept open, and a current torque curve is obtained; When a preset mutation point appears in the current torque curve, the rotating part (21) is controlled to close; When no mutation point appears in the current torque curve, the rotating part (21) continues to be opened until a mutation point appears or a new indication signal appears.

3. A method for preventing interference of a torque sensor according to claim 2, characterized in that: The method of continuing to maintain the rotation part (21) open when the current torque curve does not have a sudden change point includes: Get the torque sensor life and current torque sensor operation time; Determining the degree of operation based on the current torque sensor operation time and the torque sensor life; Calculate the current opening angle based on the degree of work and the preset full opening angle; The rotating portion (21) is controlled to remain open according to the current opening angle.

4. The method for preventing interference of a torque sensor according to claim 3, characterized in that: Another method for controlling the rotating part (21) to maintain opening after determining the degree of operation is also included, the method comprising: When the working degree is less than the preset damage judgment critical degree, the ambient temperature and the internal temperature are obtained; Calculate the temperature difference based on the internal temperature and the ambient temperature; When the temperature difference is greater than a preset critical value requiring rapid heat dissipation, the rotating part (21) is controlled to open according to a preset maximum heat dissipation angle; When the temperature difference is less than a critical value of the temperature difference requiring rapid heat dissipation, the rotating part (21) is controlled to open according to a preset heat exchange opening angle; When the working degree is greater than the critical degree for damage judgment, the rotating part (21) is controlled to open according to the current opening angle.

5. A method for preventing interference of a torque sensor according to claim 4, characterized in that: The method of controlling the rotating part (21) to open according to the maximum heat dissipation angle comprises: Continue to calculate the temperature difference; When the temperature difference is less than a preset damage critical temperature difference, the rotating part (21) is controlled to open at a maximum heat dissipation angle; When the temperature difference is greater than a critical damage temperature difference, determining a rate of change based on the temperature difference; Calculate the damage temperature difference based on the internal temperature and the damage critical temperature; Calculate the change duration based on the temperature difference, the damage critical temperature difference and the change rate; When the change duration is less than a preset short-time critical duration, the rotating part (21) is controlled to open at a maximum heat dissipation angle; When the changing time length is greater than the short-time critical time length, the rotating part (21) is controlled to open according to the maximum heat dissipation angle and to shake according to a preset heat dissipation shaking amplitude.

6. The method for preventing interference of a torque sensor according to claim 3, characterized in that: Also included is a method for checking the current opening angle, the method comprising: Controlling the rotating part (21) to close and obtaining an actual rotation angle; When the actual rotation angle no longer changes, the actual rotation angle is compared with a preset zero angle; When the actual rotation angle is zero, the current opening angle is output normally; When the actual rotation angle is not zero, the actual rotation angle is corrected based on the zero angle.

7. The method for preventing interference of a torque sensor according to claim 2, characterized in that: Also included is a subsequent method for maintaining the rotating part (21) open when the shielding torque and the opening torque are the same, the method comprising: Get the current vehicle speed; When the current vehicle speed is zero, the rotating part (21) is closed and the current torque curve and the current time are obtained; When the shielding torque corresponding to the current time in the current torque curve is not zero, a preset shielding cover failure signal is output; Determining the torque change rate based on the open torque when the shielding torque corresponding to the current time in the current torque curve is zero; When the torque change speed is zero, the rotating part (21) is kept open; When the torque change speed is not zero, a shield failure signal is output.

8. A torque sensor anti-interference system, characterized in that: include: An acquisition module, used to acquire an indication signal, shielding torque, opening torque, ambient temperature, internal temperature, actual rotation angle, current vehicle speed and current time; A memory for storing a program of a control method for a torque sensor anti-interference method according to any one of claims 1 to 7; The program in the memory can be loaded and executed by the processor to implement a control method for a torque sensor anti-interference method as described in any one of claims 1 to 7.

9. Intelligent terminal, characterized in that: The invention comprises a memory and a processor, wherein the memory stores a computer program which can be loaded by the processor and executes a method for preventing interference of a torque sensor as claimed in any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that A computer program is stored which can be loaded by a processor and executes a method for preventing interference with a torque sensor as claimed in any one of claims 1 to 7.

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