A method and device for calibrating a position signal of an electrically controlled gear shifting system and a storage medium

Abstract

This application discloses a method, device, and medium for verifying the position signal of an electronically controlled gear shifting system, relating to the field of automotive electronically controlled gear shifting control. It is used to verify the position angle of an electronically controlled gear shifting system. Addressing the current shortcomings in the accuracy of position angle determination in automotive electronically controlled gear shifting systems, this application provides a method for verifying the position signal of an electronically controlled gear shifting system. This method uses a high-precision displacement sensor and a Hall sensor to jointly monitor the current position information of the gear shifting motor, assisting the gear shifting motor controller in its control. By electrically converting the mechanical angle information of the gear shifting motor obtained by the high-precision displacement sensor into electrical angle information, it can be compared with the electrical angle information obtained by the Hall sensor, thereby verifying the accuracy of the current output position information of the gear shifting motor. This establishes a monitoring and verification mechanism for the output position information of the gear shifting motor, which is more conducive to the accuracy of the electronically controlled gear shifting system and reduces the possibility of gear shifting failures and other risks.

Description

Technical Field

[0001] This application relates to the field of electronic gear shift control in automobiles, and in particular to a method, device and storage medium for verifying position signals in an electronic gear shift system. Background Technology

[0002] In current automotive electronic gear shifting systems, the shift motor is controlled by a shift motor controller to achieve vehicle gear shifting. High-precision position information is also incorporated for position control; a high-precision displacement sensor acquires the motor's position information to achieve precise gear selection.

[0003] If the position signal is faulty, it could lead to shifting failure or even irreversible damage to the transmission. Verification of the position signal is crucial for identifying its proper function and for timely diagnostic and protection of the shifting system. However, the current solution, which relies solely on a high-precision displacement sensor to control the shift motor, still lacks sufficient accuracy.

[0004] Therefore, those skilled in the art urgently need a method for verifying the position signal of an electronically controlled gear shifting system to solve the problem that the current automotive electronically controlled gear shifting system still lacks accuracy in determining the position angle. Summary of the Invention

[0005] The purpose of this application is to provide a method, device, and storage medium for verifying the position signal of an electronically controlled gear shifting system, so as to solve the problem that the accuracy of current automotive electronically controlled gear shifting systems is still insufficient.

[0006] To solve the above-mentioned technical problems, this application provides a method for verifying the position signal of an electronically controlled gear shifting system, comprising:

[0007] The mechanical angle information of the shift motor is collected by a high-precision displacement sensor; the electrical angle information of the shift motor is collected by a Hall sensor to obtain Hall electrical angle information.

[0008] Mechanical angle information is converted to electrical angle information to obtain high-precision electrical angle information;

[0009] The position angle information output by the shift motor is verified based on Hall effect electrical angle information and high-precision electrical angle information.

[0010] Preferably, verifying the position angle information output by the shift motor based on Hall effect electrical angle information and high-precision electrical angle information includes:

[0011] Determine whether the difference between the Hall effect electrical angle information and the high-precision electrical angle information is within a preset range;

[0012] Correspondingly, if the difference between the Hall electrical angle information and the high-precision electrical angle information is not within a preset range, the method further includes:

[0013] Stop outputting the current position and angle information.

[0014] Preferred options also include:

[0015] If the number of times the difference between the Hall effect electrical angle information and the high-precision electrical angle information is outside the preset range exceeds the preset threshold within the preset time period, an error message will be returned.

[0016] Preferably, the electrical angle information of the shift motor is acquired through a Hall sensor to obtain the Hall electrical angle information, including:

[0017] The Hall signal returned by the Hall sensor is sampled at the transition edge to obtain the Hall electrical angle information.

[0018] Preferably, the mechanical angle information is subjected to electrical angle conversion processing to obtain high-precision electrical angle information, including:

[0019] The mechanical angle information is sampled and electrically converted at the transition edge of the Hall signal to obtain high-precision electrical angle information.

[0020] Preferably, the mechanical angle information is subjected to electrical angle conversion processing to obtain high-precision electrical angle information, including:

[0021] High-precision electrical angle information is determined based on mechanical angle information and the number of pole pairs of the shift motor.

[0022] Preferably, after acquiring high-precision electrical angle information, the method further includes:

[0023] Zero-position angle compensation is performed on high-precision electrical angle information.

[0024] To address the aforementioned technical problems, this application also provides a position signal verification device for an electronically controlled gear shifting system, comprising:

[0025] The acquisition module is used to acquire the mechanical angle information of the shift motor through a high-precision displacement sensor; and to acquire the electrical angle information of the shift motor through a Hall sensor to obtain Hall electrical angle information.

[0026] The processing module is used to perform electrical angle conversion on the mechanical angle information to obtain high-precision electrical angle information;

[0027] The verification module is used to verify the position angle information output by the shift motor based on Hall effect electrical angle information and high-precision electrical angle information.

[0028] Preferably, the above-mentioned electronically controlled shifting system position signal verification device further includes:

[0029] The error reporting module is used to return an error message if the number of times the difference between the Hall electrical angle information and the high-precision electrical angle information is outside the preset range exceeds a preset threshold within a preset time period.

[0030] The compensation module is used to perform zero-position angle compensation on the high-precision electrical angle information after it has been acquired.

[0031] To address the aforementioned technical problems, this application also provides a position signal verification device for an electronically controlled gear shifting system, comprising:

[0032] Memory, used to store computer programs;

[0033] A processor is used to execute computer programs to implement the steps of the position signal verification method for an electronically controlled shifting system as described above.

[0034] To address the aforementioned technical problems, this application also provides a computer-readable storage medium storing a computer program, which, when executed by a processor, implements the steps of the position signal verification method for the electronically controlled gear shifting system described above.

[0035] This application provides a method for verifying the position signal of an electronically controlled gear shifting system. It utilizes a high-precision displacement sensor and a Hall sensor to jointly monitor the current position information of the gear shifting motor, assisting the gear shifting motor controller in its operation. The mechanical angle information of the gear shifting motor acquired by the high-precision displacement sensor is electrically converted to an electrical angle, allowing comparison with the electrical angle information acquired by the Hall sensor. This verifies the accuracy of the current output position information of the gear shifting motor. By introducing another Hall sensor and Hall signal for determining the position information of the gear shifting motor, this application establishes a monitoring and verification mechanism for the output position information of the gear shifting motor, which is more conducive to the accuracy of the electronically controlled gear shifting system and reduces the possibility of gear shifting failures.

[0036] The electronically controlled shifting system position signal verification device and computer-readable storage medium provided in this application correspond to the above method and have the same effect. Attached Figure Description

[0037] To more clearly illustrate the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0038] Figure 1 A flowchart of a position signal verification method for an electronically controlled gear shifting system provided by the present invention;

[0039] Figure 2This invention provides a structural diagram of an electronically controlled gear shifting system;

[0040] Figure 3 A flowchart of another method for verifying the position signal of an electronically controlled gear shifting system provided by the present invention;

[0041] Figure 4 A simulation diagram of position signal verification for an electronically controlled gear shifting system provided by the present invention;

[0042] Figure 5 This invention provides a schematic diagram of the angle deviation for position signal verification in an electronically controlled gear shifting system.

[0043] Figure 6 A schematic diagram of a mechanical angle acquired by a high-precision displacement sensor provided by the present invention;

[0044] Figure 7 This invention provides a structural diagram of a position signal verification device for an electronically controlled gear shifting system.

[0045] Figure 8 This is a structural diagram of another electronically controlled gear shifting system position signal verification device provided by the present invention. Detailed Implementation

[0046] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this application.

[0047] The core of this application is to provide a method, device, and storage medium for verifying the position signal of an electronically controlled gear shifting system.

[0048] To enable those skilled in the art to better understand the present application, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0049] In current automotive electronic gear shifting systems, the gear shifting motor is controlled by a gear shifting motor controller to achieve vehicle gear shifting. High-precision position information is introduced for position control, and a high-precision displacement sensor obtains position information such as the mechanical angle of the motor to achieve precise gear control.

[0050] If the position signal is faulty, it could lead to shifting failure or even irreversible damage to the transmission. Therefore, verifying the position signal is crucial for identifying whether it is functioning correctly and for timely diagnostic and protection of the shifting system.

[0051] Therefore, in order to verify the gear position of the electronically controlled gear shifting system, this application provides a method for verifying the position signal of the electronically controlled gear shifting system, such as... Figure 1 As shown, the method includes:

[0052] S11: The mechanical angle information of the shift motor is collected by a high-precision displacement sensor; the electrical angle information of the shift motor is collected by a Hall sensor to obtain Hall electrical angle information.

[0053] S12: Perform electrical angle conversion on the mechanical angle information to obtain high-precision electrical angle information.

[0054] S13: Verify the position angle information output by the shift motor based on Hall effect electrical angle information and high-precision electrical angle information.

[0055] This application applies to an electronically controlled shifting system, such as... Figure 2 As shown, it includes at least: a shift motor controller 11, a shift motor 12, a high-precision displacement sensor 13, and a Hall sensor 14; the high-precision displacement sensor 13 and the Hall sensor 14 are connected to the shift motor controller 11 and are used to collect the position information of the shift motor 12 and transmit it to the shift motor controller 11 to assist the controller in gear control; the shift motor 12 is connected to the shift motor controller 11, and the gear is controlled by the position information output by it.

[0056] The high-precision displacement sensor 13 and Hall sensor 14 are generally located at the shift motor 12. The three can be integrated into one unit or connected by an intermediate transmission device so that the high-precision displacement sensor 13, Hall sensor 14 and shift motor 12 can be placed separately to obtain greater flexibility in specific implementation. This embodiment does not limit the specific use of any of the above solutions. Those skilled in the art can choose according to actual needs.

[0057] Furthermore, since the installation positions of the magnetic field sensing chips of each motor are not exactly the same, the zero position when the current mechanical angle of the motor is obtained by the high-precision displacement sensor is also not exactly the same. To facilitate subsequent processing and verification, this embodiment provides a preferred implementation scheme. After obtaining the high-precision electrical angle information in step S12, the above method further includes:

[0058] S14: Perform zero-position angle compensation on high-precision electrical angle information.

[0059] Specifically, after the shift motor starts, taking advantage of the Hall sensor's accurate value acquisition on the transition edge, the transition edge of any Hall sensor output signal is selected to record the converted high-precision electrical angle. At this time, the electrical angle value returned by the Hall sensor is known and can be used for zero-position angle compensation of high-precision electrical angle information.

[0060] The selection of high-precision displacement sensors and Hall effect sensors can be based on actual needs. For high-precision displacement sensors, an electric encoder can be chosen. The high-precision signal output by the electric encoder represents the mechanical angle of the shift motor, while the Hall effect signal output by the Hall sensor represents the electrical angle of the shift motor. To facilitate subsequent comparison of the Hall effect signal and the high-precision signal to verify the accuracy of the position signal, the two signals can be processed to unify the units. Generally, the mechanical angle represented by the high-precision signal is converted into an electrical angle.

[0061] Specifically, the processing method for converting mechanical angle information obtained by high-precision displacement sensors into electrical angles includes: determining high-precision electrical angle information based on mechanical angle information and the number of pole pairs of the shift motor.

[0062] That is, there is a formula: Electrical angle = Mechanical angle × Number of pole pairs.

[0063] In actual automotive electronic shifting system applications, the shift motor usually has 4 pole pairs. The above formula can convert the high-precision signal representing mechanical angle information output by the high-precision displacement controller into the form of electrical angle, so as to unify the high-precision signal and Hall signal forms and facilitate subsequent comparison and verification.

[0064] As described above, the position signal verification method for an electronically controlled gear shifting system provided in this application is for use in such systems. This application scenario requires high accuracy of position information, so high-precision displacement sensors are currently commonly used to acquire position information. It is well known that while Hall sensors have low angular accuracy, their transition edge values ​​are relatively accurate, which can meet the application requirements of electronically controlled gear shifting systems. Therefore, this embodiment utilizes this characteristic to propose a preferred implementation scheme: when acquiring Hall electrical angle information through the Hall signal output by the Hall sensor, the value is taken at the transition edge of the Hall signal to obtain the Hall electrical angle information, ensuring the accuracy and precision of the Hall electrical angle information.

[0065] Similarly, to facilitate the subsequent comparison between Hall electrical angle information and high-precision electrical angle information, the sampling of the output signal of the high-precision displacement sensor is based on the same time as the Hall signal, that is, sampling at the falling edge of the Hall signal to obtain Hall electrical angle information and high-precision electrical angle information converted from high-precision mechanical angle information.

[0066] After obtaining Hall effect electrical angle information and high-precision electrical angle information through the verification method provided in this application, the difference between the two electrical angles can be compared in real time to determine whether there is any abnormality in the current position information. This also allows it to determine whether the shift motor controller is malfunctioning in its control of the gear position. If an abnormality occurs, protective measures are needed to prevent abnormal or inaccurate motor angle output from the electronic shift system. This further ensures the accuracy and reliability of the position angle determination by the electronic shift system, thereby reducing the possibility of shift failure and irreversible damage to the gearbox.

[0067] The above embodiments do not impose limitations on the protection measures, but this embodiment provides a possible implementation plan. Step S13: verifying the position angle information output by the shift motor based on the Hall electrical angle information and the high-precision electrical angle information specifically includes:

[0068] S131: Determine whether the difference between the Hall electrical angle information and the high-precision electrical angle information is within the preset range. If not, proceed to step S132.

[0069] S132: Stop outputting the current position and angle information.

[0070] For the preset range, that is, the maximum allowable error range determined in advance according to the actual implementation needs, the error within this maximum error range can be ignored or its impact can be reduced to negligible through other technical means. In one possible application scenario, the maximum allowable value for the difference between the above-mentioned Hall electrical angle information and high-precision electrical angle information is 90°, that is, the maximum allowable error range is within ±90°.

[0071] As described above, the above embodiments provide a preferred solution for a protection measure, which functions to monitor and verify in real time whether the position information output by the electronically controlled shifting system is abnormal. If an abnormality is found, the current position information output is not allowed to be output, thereby ensuring the accurate and effective gear control of the vehicle's electronically controlled shifting system. The above protection measure can effectively solve the problem of abnormal output caused by intermittent faults in the electronically controlled shifting system. However, for non-intermittent faults, applying the protection measure provided in the above embodiments may result in a situation where there is no position information output for a long time (the output of abnormal position information is intercepted and not allowed to be output), at which time the gear control function of the electronically controlled shifting system fails. To address this problem, this embodiment also provides a preferred implementation scheme, in which the above method further includes:

[0072] If the number of times the difference between the Hall effect electrical angle information and the high-precision electrical angle information is outside the preset range exceeds the preset threshold within the preset time period, an error message will be returned.

[0073] The protection measures provided in conjunction with the above embodiments, specifically include:

[0074] S131: Determine whether the difference between the Hall electrical angle information and the high-precision electrical angle information is within the preset range. If not, proceed to step S132.

[0075] S132: Stop outputting the current position and angle information, and increment the error count by one.

[0076] The abnormal count value can be counted using a counter, with an initial value of zero.

[0077] S133: After a preset time, determine whether the abnormal count value exceeds the preset threshold. If so, return an error message.

[0078] S134: Clear the abnormal count value.

[0079] It is easy to understand that step S131 is performed in real time during the operation of the electronic shifting system; while step S132 is often implemented by interruption in actual applications. When step S131 detects that the difference between the Hall electrical angle information and the high-precision electrical angle information exceeds the preset range, the interruption of step S132 is triggered, the current position angle output is intercepted, and the abnormal count value is incremented by one. As for steps S133 and S134, they are triggered periodically, and the triggering period is a preset duration. That is, every preset duration, step S133 judges the current abnormal count value. If it exceeds the preset threshold, an error message is returned to trigger an alarm. Regardless of whether an alarm is triggered, the abnormal count value is cleared to zero after the judgment is completed, so that the judgment can be performed next time.

[0080] Furthermore, this embodiment does not impose strict restrictions on the values ​​of the preset duration and preset threshold. It is easy to understand that the purpose of setting the preset duration and preset threshold is to make an error report when the number of times the electronically controlled shifting system experiences output abnormalities within a unit of time exceeds the maximum acceptable value, so that the operator can discover and solve the problem in a timely manner.

[0081] Therefore, one possible implementation is as follows: since the interruption time required in actual application is 1 millisecond, the preset duration can be set to 1 second, and the preset number of times is 1000 times. That is, at this time, the position information output by the electronic shifting system is always abnormal and cannot achieve the control function normally.

[0082] The preferred embodiment provided in this paper discloses a method for verifying the output position information of an electronically controlled shifting system. Utilizing Hall effect electrical angle information and high-precision electrical angle information obtained from the scheme disclosed in the above embodiment, the difference between the two is calculated and it is determined whether the difference is within a preset range to identify any abnormal position information output. If an abnormality exists, the electronically controlled shifting system may experience shift failures, leading to irreversible damage to the gearbox. Therefore, this embodiment intercepts the abnormal position information output, preventing it from being output, ensuring that the electronically controlled shifting motor does not output unexpected (or abnormal) position angles, reducing risk and minimizing potential losses. While the above-mentioned protective measures for intercepting abnormal angle position information can effectively address intermittent faults in the electronically controlled shifting system, their effectiveness in addressing non-intermittent faults is limited. For example, if a non-incidental fault causes the electronic shifting system to have an abnormal position angle for a period of time, then according to the above-mentioned protection measures, intercepting the abnormal position angle output will result in no position angle output from the electronic shifting system for a period of time, thus causing a control failure problem, which may also lead to serious consequences. Therefore, this embodiment also provides a protection measure by counting the number of abnormal position angle outputs each time, and then judging whether the number of abnormal position angle outputs by the electronic shifting system per unit time exceeds the maximum allowed number. If it exceeds the maximum allowed number, it indicates that a serious non-incidental error has occurred. At this time, the gear control capability of the electronic shifting system cannot be guaranteed, and an error message is returned to promptly remind the operation and maintenance personnel to investigate and resolve the problem.

[0083] To more clearly illustrate the position signal verification method for an electronically controlled gear shifting system provided in this application, the method will be further explained below in conjunction with the above embodiments and practical application scenarios, such as... Figure 3 As shown, this method includes:

[0084] S21: Determine whether the shift motor is started. If yes, proceed to steps S22 and S23; otherwise, end the method directly.

[0085] S22: Record the transition angle of the Hall signal output by the Hall sensor to obtain Hall electrical angle information.

[0086] S23: Record the mechanical angle information output by the high-precision displacement sensor, and perform electrical angle conversion on the mechanical angle information to obtain high-precision electrical angle information.

[0087] Steps S22 and S23 are executed in parallel, and the subsequent step is step S24.

[0088] S24: Perform zero-position compensation on high-precision electrical angle information based on Hall electrical angle information.

[0089] S25: Calculate the difference between the Hall electrical angle information and the high-precision electrical angle information, and determine whether the difference is greater than 90°. If so, proceed to step S26; otherwise, proceed to step S27.

[0090] S26: Output the current position angle information.

[0091] S27: Stop outputting the current position angle information and increment the error count by one.

[0092] S28: Periodically check whether the abnormal count value exceeds the preset threshold. If so, proceed to step S29.

[0093] The initial value of the exception count is zero, and the exception count is cleared after the judgment in step S28 is completed.

[0094] S29: Error message indicating an abnormal return location.

[0095] In this embodiment, after the shift motor starts, the electrical angle of the shift motor is obtained through a Hall sensor, and the mechanical angle is obtained through a high-precision displacement sensor. The mechanical angle obtained from the high-precision displacement sensor is then converted into an electrical angle through electrical angle conversion processing. This electrical angle can then be compared with the Hall electrical angle for verification. If the difference between the two electrical angles exceeds a preset range, it indicates that the currently output position angle is abnormal. Controlling the shift motor's gear position using this position angle may pose a risk, therefore, the output of this position angle is intercepted. Furthermore, each time the above-mentioned interception action occurs, the abnormality count is incremented by one. It is periodically checked whether the abnormality count exceeds a preset threshold. If it does, it indicates a serious fault in the electronic shift system, and an error is reported to prompt maintenance personnel to promptly investigate and handle the problem, further ensuring the safety of the automotive electronic shift system.

[0096] In addition, to illustrate the effectiveness of the position signal verification method for an electronically controlled shifting system provided in the above embodiments, this embodiment also combines simulation and example tests for explanation.

[0097] like Figure 4 As shown, Figure 4 The results are the theoretical and simulation results of this method. Figure 4 The string includes a solid line Hall_CW and three dashed lines RawPos, p*pos, and FinaNewPos2RotorAngle; the specific meanings of these representations are as follows:

[0098] RawPos: Unprocessed high-precision mechanical angle;

[0099] p*pos: Electrical angle of the high-precision sensor; where p represents the number of poles of the shift motor;

[0100] Hall_CW: Hall angle;

[0101] FinaNewPos2RotorAngle: Electrical angle of the high-precision displacement sensor after displacement.

[0102] As described in the above embodiment, in practical applications, the shift motor usually has 4 pole pairs. Therefore, after converting the mechanical angle RawPos obtained by the high-precision sensor into an electrical angle, the line p*pos is obtained. In addition, the electrical angle obtained by taking the value of the transition edge of the Hall sensor output signal is the line Hall_CW. Therefore, after shifting the line p*pos (i.e., the line FinaNewPos2RotorAngle), it can be found that it matches the line Hall_CW. The shift amount is the error between the two. This error can be used to verify the position angle output.

[0103] In a specific application, a corresponding broken line is generated based on the difference between the sampled Hall electrical angle and the high-precision electrical angle. Figure 5 ,Depend on Figure 5 It can be seen that, Figure 5 During a certain period of time in a particular application, the position angle deviation was within ±14.6°, which meets the requirement of not exceeding the preset range of 90°, and the position angle output is reliable and effective.

[0104] And such as Figure 6 Another verification method shown is... Figure 6 This refers to the mechanical angles of the shift motor acquired by the high-precision displacement sensor. A, B, C, and D represent different angles of the motor rotor, which in turn represent different gears. If the high-precision acquisition of the motor rotor angle position is accurate, then the electrical angles converted from the four mechanical angles A, B, C, and D should satisfy the relationship that they differ from each other by an integer multiple of 360° (allowing for a certain amount of error).

[0105] For example, mechanical angles A and D, Figure 6 The application scenario shown also uses a shift motor with 4 pairs of poles as an example, such as... Figure 6 As shown, the mechanical angle A is 42°, which, after electrical angle conversion, yields the electrical angle A = 42° × 4 = 168°; similarly, as... Figure 5 As shown, the mechanical angle D is 312°, so after electrical conversion, we get the electrical angle D = 312° × 4 - 3 × 360° = 168°. Therefore, it can be seen that the electrical angles A and D are equal. Figure 6 In the application scenarios shown, the position and angle determined by the high-precision displacement sensor are more accurate.

[0106] In the above embodiments, a method for verifying the position signal of an electronically controlled gear shifting system has been described in detail. This application also provides an embodiment of a corresponding device for verifying the position signal of an electronically controlled gear shifting system. It should be noted that this application describes the embodiment of the device from two perspectives: one based on functional modules and the other based on hardware.

[0107] From the perspective of functional modules, such as Figure 7 As shown, this embodiment provides a position signal verification device for an electronically controlled gear shifting system, comprising:

[0108] The acquisition module 21 is used to acquire the mechanical angle information of the shift motor through a high-precision displacement sensor; and to acquire the electrical angle information of the shift motor through a Hall sensor to obtain Hall electrical angle information.

[0109] Processing module 22 is used to perform electrical angle conversion on mechanical angle information to obtain high-precision electrical angle information;

[0110] The verification module 23 is used to verify the position angle information output by the shift motor based on the Hall electric angle information and the high-precision electric angle information.

[0111] Preferably, the above-mentioned electronically controlled shifting system position signal verification device further includes:

[0112] The error reporting module is used to return an error message if the number of times the difference between the Hall electrical angle information and the high-precision electrical angle information is outside the preset range exceeds a preset threshold within a preset time period.

[0113] The compensation module is used to perform zero-position angle compensation on the high-precision electrical angle information after it has been acquired.

[0114] Since the embodiments of the apparatus and the embodiments of the method correspond to each other, please refer to the description of the embodiments of the method for the embodiments of the apparatus, which will not be repeated here.

[0115] This embodiment provides a position signal verification device for an electronically controlled gear shifting system. It acquires mechanical angle information output by a high-precision displacement sensor and electrical angle information output by a Hall sensor, referred to as Hall electrical angle information for ease of differentiation. Thus, the position angle information representing the same physical quantity acquired by two different position sensors can be compared to determine accuracy. However, mechanical and electrical angles cannot be directly subtracted for verification. Therefore, the mechanical angle acquired by the high-precision displacement sensor is converted to an electrical angle, allowing for intuitive judgment of the current electrical angle position information of the shift motor detected by the two sensors. This also facilitates the identification of differences between the two, thereby verifying the position angle and improving the reliability and accuracy of gear switching in the automotive electronically controlled gear shifting system.

[0116] Figure 8 A structural diagram of a position signal verification device for an electronically controlled gear shifting system, as provided in another embodiment of this application, is shown below. Figure 8 As shown, a position signal verification device for an electronically controlled gear shifting system includes: a memory 30 for storing computer programs;

[0117] The processor 31 is used to execute a computer program to implement the steps of a position signal verification method for an electronically controlled gear shifting system as described in the above embodiment.

[0118] The position signal verification device for an electronically controlled gear shifting system provided in this embodiment may include, but is not limited to, a gear shifting motor controller, a laptop computer, or a desktop computer.

[0119] The processor 31 may include one or more processing cores, such as a quad-core processor or an octa-core processor. The processor 31 may be implemented using at least one of the following hardware forms: Digital Signal Processor (DSP), Field-Programmable Gate Array (FPGA), or Programmable Logic Array (PLA). The processor 31 may also include a main processor and a coprocessor. The main processor, also known as the Central Processing Unit (CPU), is used to process data in the wake-up state; the coprocessor is a low-power processor used to process data in the standby state. In some embodiments, the processor 31 may integrate a Graphics Processing Unit (GPU), which is responsible for rendering and drawing the content to be displayed on the screen. In some embodiments, the processor 31 may also include an Artificial Intelligence (AI) processor, which is used to handle computational operations related to machine learning.

[0120] The memory 30 may include one or more computer-readable storage media, which may be non-transitory. The memory 30 may also include high-speed random access memory and non-volatile memory, such as one or more disk storage devices or flash memory devices. In this embodiment, the memory 30 is used to store at least the following computer program 301, which, after being loaded and executed by the processor 31, can implement the relevant steps of the position signal verification method for an electronically controlled gear shifting system disclosed in any of the foregoing embodiments. In addition, the resources stored in the memory 30 may also include an operating system 302 and data 303, and the storage method may be temporary or permanent storage. The operating system 302 may include Windows, Unix, Linux, etc. The data 303 may include, but is not limited to, a position signal verification method for an electronically controlled gear shifting system.

[0121] In some embodiments, an electronically controlled shifting system position signal verification device may further include a display screen 32, an input / output interface 33, a communication interface 34, a power supply 35, and a communication bus 36.

[0122] Those skilled in the art will understand that Figure 8 The structure shown does not constitute a limitation on a position signal verification device for an electronically controlled shifting system and may include more or fewer components than shown.

[0123] This application provides an embodiment of a position signal verification device for an electronically controlled gear shifting system, which includes a memory and a processor. When the processor executes a program stored in the memory, it can implement the following method: a method for verifying the position signal of an electronically controlled gear shifting system.

[0124] The position signal verification device for an electronically controlled gear shifting system provided in this embodiment executes a computer program stored in a memory through a processor to acquire the current angle information of the gear shifting motor through two different sensors: a Hall sensor and a high-precision displacement sensor. Since the Hall sensor obtains the electrical angle of the gear shifting motor and the high-precision displacement sensor obtains the mechanical angle of the gear shifting motor, the mechanical angle obtained by the high-precision displacement sensor is converted into an electrical angle for easier subsequent verification, so that the two express the same physical meaning. This allows for position angle verification to determine whether the current output position angle of the electronically controlled gear shifting system is accurate, thereby better meeting the high requirements for angle position determination accuracy in actual automotive gear control scenarios.

[0125] Finally, this application also provides an embodiment corresponding to a computer-readable storage medium. The computer-readable storage medium stores a computer program, which, when executed by a processor, implements the steps described in the above method embodiments.

[0126] It is understood that if the methods in the above embodiments are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and executes all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0127] The computer-readable storage medium provided in this embodiment, when the computer program stored therein is executed, can acquire the current angle information of the shift motor through two different sensors: a Hall sensor and a high-precision displacement sensor. Since the Hall sensor obtains the electrical angle of the shift motor and the high-precision displacement sensor obtains the mechanical angle of the shift motor, in order to facilitate subsequent verification, the mechanical angle obtained by the high-precision displacement sensor is converted into an electrical angle so that the two express the same physical meaning. This allows for position angle verification to determine whether the current output position angle of the electronic shift system is accurate, so as to better meet the high requirements for the accuracy of angle position determination in actual automotive gear control scenarios.

[0128] The foregoing provides a detailed description of a position signal verification method, apparatus, and storage medium for an electronically controlled gear shifting system. The various embodiments are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since it corresponds to the method disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to in the method section. It should be noted that those skilled in the art can make various improvements and modifications to this application without departing from the principles of this application, and these improvements and modifications also fall within the protection scope of the claims of this application.

[0129] It should also be noted that, in this specification, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A method for verifying the position signal of an electronically controlled gear shifting system, characterized in that, include: The mechanical angle information of the shift motor is collected by a high-precision displacement sensor; The Hall signal returned by the Hall sensor is sampled at the transition edge to obtain the Hall electrical angle information; The mechanical angle information is subjected to electrical angle conversion processing to obtain high-precision electrical angle information; wherein, the electrical angle conversion processing of the mechanical angle information to obtain high-precision electrical angle information includes: sampling and electrical angle conversion processing of the mechanical angle information at the transition edge of the Hall signal to obtain the high-precision electrical angle information; determining the high-precision electrical angle information based on the mechanical angle information and the number of pole pairs of the shift motor; Zero-position angle compensation is performed on the high-precision electrical angle information; Determine whether the difference between the Hall electrical angle information and the high-precision electrical angle information is within a preset range; If the difference between the Hall electrical angle information and the high-precision electrical angle information is not within the preset range, then stop outputting the current position angle information; If the number of times the difference between the Hall electrical angle information and the high-precision electrical angle information is outside the preset range exceeds a preset threshold within a preset time period, an error message is returned.

2. A position signal verification device for an electronically controlled gear shifting system, characterized in that, include: The acquisition module is used to collect mechanical angle information of the shift motor through a high-precision displacement sensor; The Hall signal returned by the Hall sensor is sampled at the transition edge to obtain the Hall electrical angle information; The processing module is used to perform electrical angle conversion processing on the mechanical angle information to obtain high-precision electrical angle information; wherein, performing electrical angle conversion processing on the mechanical angle information to obtain high-precision electrical angle information includes: sampling and electrical angle conversion processing on the transition edge of the Hall signal to obtain the high-precision electrical angle information; and determining the high-precision electrical angle information based on the mechanical angle information and the number of pole pairs of the shift motor; The compensation module is used to perform zero-position angle compensation on the high-precision electrical angle information after acquiring the high-precision electrical angle information. The verification module is used to determine whether the difference between the Hall electrical angle information and the high-precision electrical angle information is within a preset range; if the difference between the Hall electrical angle information and the high-precision electrical angle information is not within the preset range, the output of the current position angle information is stopped. The error reporting module is used to return an error message if the number of times the difference between the Hall electrical angle information and the high-precision electrical angle information is not within the preset range exceeds a preset threshold within a preset time period.

3. A position signal verification device for an electronically controlled gear shifting system, characterized in that, include: Memory, used to store computer programs; A processor is configured to execute the computer program to implement the steps of the position signal verification method for the electronically controlled shifting system as described in claim 1.

4. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program, which, when executed by a processor, implements the steps of the position signal verification method for the electronically controlled shifting system as described in claim 1.

Images