Rotary transformer signal processing method and device, electronic equipment and storage medium
By monitoring and processing the feedback signal of the rotary transformer, determining the initial and target angles, and generating the target first feedback signal, the problem of car stopping caused by abnormal rotation transformer signal is solved, reducing the failure rate and improving the user experience.
Patent Information
- Application Number
- CN202510133803.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-06
- Publication Date
- 2025-05-27
AI Technical Summary
In new energy vehicles, due to environmental interference and poor line contact, the feedback sinusoidal and cosine signals often occur abnormalities or losses, causing the car to stop running.
By monitoring the abnormal information of the first feedback signal, the initial angle of the rotation transformer is determined using the second feedback signal, the pre-acquisition excitation signal and the transformer ratio parameters. Then, based on the historical first feedback signal set and the initial angle, the target angle is determined and the target first feedback signal is generated.
The processing of the first feedback signal during the vehicle operation is realized, the failure rate of the vehicle is reduced, the risk of vehicle stopping due to signal abnormality is avoided, and the user experience is improved.
Smart Images
Figure CN120049789A_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to the technical field of signal processing, and in particular, to a resolver signal processing method, apparatus, electronic device, and storage medium. Background Art
[0002] At present, most of the permanent magnet synchronous motors used in new energy vehicles identify the rotational speed and position by carrying a resolver. However, in actual use, due to reasons such as interference from the surrounding environment and poor line contact, one of the sine signal and cosine signal fed back by the resolver often shows abnormal or even lost, resulting in the vehicle stopping running.
[0003] In the related art, usually only the functional faults of the resolver are detected. After detecting that the resolver has a functional fault, the vehicle is stopped, and the fault problem is processed after the vehicle stops running. The problem cannot be solved without affecting the vehicle operation. Summary of the Invention
[0004] The present disclosure provides a resolver signal processing method, apparatus, electronic device, and storage medium.
[0005] The first aspect of the embodiments of the present disclosure provides a resolver signal processing method, including:
[0006] In response to the abnormal information of the monitored first feedback signal, based on the second feedback signal, the pre-acquired excitation signal, and the turns ratio parameter, determine the initial angle of the resolver; the signal type of the first feedback signal is a sine signal or a cosine signal; the signal type of the second feedback signal is a cosine signal or a sine signal with the same angle as the first feedback signal; the first feedback signal and the second feedback signal have the same angle;
[0007] Based on the historical first feedback signal set within a preset historical time period and the initial angle, determine the target angle;
[0008] Based on the target angle, the turns ratio parameter, and the excitation signal, generate the target first feedback signal at the current moment.
[0009] In the embodiments of the present disclosure, the abnormality of the first feedback signal includes not obtaining the first feedback signal, or the first feedback signal does not meet the preset standard.
[0010] In the embodiments of the present disclosure, the determining the initial angle of the resolver based on the second feedback signal, the pre-acquired excitation signal, and the turns ratio parameter includes:
[0011] Calculate a function value corresponding to the signal type based on the excitation signal, the turns ratio parameter, and the signal value of the second feedback signal;
[0012] Determine the initial angle based on the function value and the signal type of the second feedback signal.
[0013] In an embodiment of the present disclosure, the historical first feedback signal set includes at least two historical first feedback signals.
[0014] Determining the target angle based on the historical first feedback signal set within a preset historical time period and the initial angle includes:
[0015] Determine the historical angle and historical moment corresponding to any one of the historical first feedback signals;
[0016] Select the target angle from the initial angles based on the historical angles and historical moments respectively corresponding to the at least two historical first feedback signals.
[0017] In an embodiment of the present disclosure, the initial angle includes a first angle and a second angle, and the first angle and the second angle differ by 90 degrees.
[0018] In an embodiment of the present disclosure, generating the target first feedback signal at the current moment based on the target angle, the turns ratio parameter, and the excitation signal includes:
[0019] Determine a first function value based on the signal type of the first feedback signal and the target angle;
[0020] Use the product of the first function value, the turns ratio parameter, and the excitation signal as the target first feedback signal.
[0021] In an embodiment of the present disclosure, the method further includes:
[0022] Generate a fault prompt message based on the abnormal information of the first feedback signal.
[0023] An embodiment of the second aspect of the present disclosure provides a resolver signal processing device, and the device includes:
[0024] An initial angle determination module, configured to, in response to the abnormal information of the monitored first feedback signal, determine the initial angle of the resolver based on the second feedback signal, the pre-acquired excitation signal, and the turns ratio parameter; the signal type of the first feedback signal is a sine signal or a cosine signal; the signal type of the second feedback signal is a cosine signal or a sine signal with the same angle as the first feedback signal; the first feedback signal and the second feedback signal have the same angle;
[0025] A target angle determination module, configured to determine a target angle based on a historical first feedback signal set within a preset historical time period and the initial angle;
[0026] A target first feedback signal determination module, configured to generate a target first feedback signal at the current moment based on the target angle, the turns ratio parameter, and the excitation signal.
[0027] An embodiment of the third aspect of the present disclosure provides an electronic device, including a memory, a processor, and a computer program stored on the memory and executable on the processor. The processor runs the computer program to implement the method described in the first aspect or any optional implementation manner of the first aspect.
[0028] An embodiment of the fourth aspect of the present disclosure provides a computer-readable storage medium, on which a computer program is stored. The program is executed by a processor to implement the method described in the first aspect and any optional implementation manner of the first aspect.
[0029] The technical solutions provided in the embodiments of the present disclosure at least have the following technical effects or advantages:
[0030] In response to detecting abnormal information of the first feedback signal, since the first feedback signal and the second feedback signal are a sine signal and a cosine signal with the same angle, the initial angle corresponding to the resolver can be determined according to the second feedback signal, the pre-acquired excitation signal, and the turns ratio parameter; further, based on the historical first feedback signal set within the preset historical time period and the initial angle, the target angle is determined; based on the target angle, the turns ratio parameter, and the excitation signal, a target first feedback signal at the current moment is generated. The processing of the first feedback signal during the vehicle operation is realized, the failure rate of the vehicle is reduced, and the user experience is improved to a certain extent.
[0031] The additional aspects and advantages of the present disclosure will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS
[0032] By reading the detailed description of the preferred embodiments below, various other advantages and benefits will become clear to those of ordinary skill in the art. The drawings are only for the purpose of showing the preferred embodiments and are not considered to be a limitation of the present disclosure. Moreover, throughout the drawings, the same reference numerals are used to represent the same components.
[0033] In the drawings:
[0034] Figure 1 The flowchart of a resolver signal processing method provided by an embodiment of the present disclosure is shown;
[0035] Figure 2 Shows a schematic diagram of a resolver, which is a signal processing method provided by an embodiment of the present disclosure;
[0036] Figure 3 Shows a schematic diagram of a signal processing method for a resolver provided by an embodiment of the present disclosure;
[0037] Figure 4 Shows a schematic diagram of a resolver signal processing device provided by an embodiment of the present disclosure;
[0038] Figure 5 Shows a schematic diagram of the structure of an electronic device provided by an embodiment of the present disclosure;
[0039] Figure 6 Shows a schematic diagram of a storage medium provided by an embodiment of the present disclosure. Detailed implementation manners
[0040] Hereinafter, exemplary embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided so that the present disclosure can be more thoroughly understood and the scope of the present disclosure can be fully conveyed to those skilled in the art.
[0041] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in the present disclosure should have the ordinary meanings understood by those skilled in the art to which the present disclosure pertains.
[0042] An embodiment of the present disclosure proposes a signal processing method for a resolver, as Figure 1 shown is a signal processing method for a resolver provided by an embodiment of the present disclosure. The resolver consists of a stator and a rotor. By inputting a sinusoidal excitation voltage on the primary side, two triangular signal voltages with the same phase are generated on the secondary side. At the same time, as the rotor rotates, the amplitude of the secondary side voltage will change accordingly. The position information of the motor can be judged by the signals generated on the secondary side. As Figure 2 shown is a schematic diagram of the resolver, where R1 / R2 is the excitation signal, which needs to be input by the controller, specifically, it can be a controller installed in the vehicle. Conventionally, a sinusoidal signal of about 10 kHz is used, which can be expressed as Vr = Vp×sin(wt). After passing through the resolver, a sine and cosine signal will be generated, and then this signal is returned to the controller for processing to obtain the required rotational speed and position signals. For example, the signal generated on the S2 - S4 side is Va = Vp*sin(wt)*sinθ*k, and the signal generated on the S1 - S3 side is V b= Vp * sin(wt) * cosθ * k, Figure 2 where Vs = Vp * k, θ is the rotation angle, and k is the voltage transformation ratio parameter.
[0043] Regarding the above content, by obtaining the first feedback signal and the second feedback signal corresponding to the two secondary sides of the resolver in real time, the position of the motor at the corresponding moment can be determined. When obtaining the feedback signals, if there is an abnormality in the signal corresponding to one of the secondary sides, the position of the motor cannot be accurately determined.
[0044] In view of this, the embodiments of the present disclosure propose a resolver signal processing method to solve the above problems. As Figure 1 shown, a resolver signal processing method provided by the embodiments of the present disclosure includes the following steps:
[0045] In step S11, in response to the abnormal information of the monitored first feedback signal, based on the second feedback signal, the pre-obtained excitation signal, and the voltage transformation ratio parameter, the initial angle of the resolver is determined.
[0046] Among them, the signal type of the first feedback signal is a sine signal or a cosine signal; the signal type of the second feedback information is a cosine signal or a sine signal with the same angle as the first feedback signal; the first feedback signal and the second feedback signal have the same angle.
[0047] Exemplarily, the first feedback signal can be Figure 2 any one of Va or Vb in. After the abnormal information of one of the feedback signals is monitored, the initial angle can be determined according to the other feedback signal, the pre-obtained excitation signal, and the voltage transformation ratio parameter.
[0048] In the embodiments of the present disclosure, the abnormal information may be that no feedback signal is obtained and the value of the feedback signal does not conform to the preset standard. The situation where no feedback signal is obtained may include the following cases. 1. The output signal of the resolver completely disappears and no feedback signal can be detected. This may be caused by a signal transmission line failure, an internal failure of the resolver, or a connection problem. 2. External electromagnetic interference causes the feedback signal to be unable to be correctly transmitted or detected. In this case, although the signal may exist, due to the interference, the detection device cannot effectively identify it. 3. Hardware failures of the resolver or related detection circuits cause the signal to be unable to be output. For example, the winding of the resolver is broken, or the excitation circuit fails.
[0049] The situation where the value of the feedback signal does not conform to the preset standard may include the following cases. 1. The amplitude of the feedback signal exceeds the preset normal range. For example, if the signal amplitude is too low or too high, it may indicate that the excitation voltage of the resolver is unstable or there are other electrical faults. 2. The frequency of the feedback signal does not match the expected value. This may be caused by abnormal motor speed or internal faults of the resolver. 3. The phase of the feedback signal does not match the expected value. For example, if the phase difference between the sine signal and the cosine signal is less than 90 degrees, it may indicate that the installation position of the resolver is incorrect or there are other mechanical faults. 4. The waveform of the feedback signal is distorted, such as spikes, glitches, or non-sinusoidal waveforms. This may be caused by electromagnetic interference, circuit faults, or uneven magnetic circuits of the resolver.
[0050] The second feedback signal is the signal of the other secondary side obtained at the same time as the abnormal first feedback signal. If the second feedback signal is a sine signal, the abnormal first feedback signal is a cosine signal; if the second feedback signal is a cosine signal, the abnormal first feedback signal is a sine signal.
[0051] Specifically, using the second feedback signal, the excitation signal, and the known voltage ratio parameter, a mathematical model or algorithm can be established to calculate the current angle of the resolver.
[0052] Since the initial angle is determined under abnormal conditions, specific fault-tolerant algorithms or compensation mechanisms may be required to reduce the impact of abnormal signals on the calculation results. The algorithms may involve signal phase comparison, frequency analysis, or specific mathematical transformations based on the working principle of the resolver, etc. Verify the calculated initial angle to ensure that it conforms to the physical characteristics and operating conditions of the resolver. If necessary, make fine adjustments or corrections based on the verification results to obtain the initial angle to improve the accuracy of angle measurement.
[0053] In some embodiments, the above step S11 can also be implemented in the following manner: Calculate the function value corresponding to the signal type based on the excitation signal, the voltage ratio parameter, and the signal value of the second feedback signal; Determine the initial angle based on the function value and the signal type of the second feedback signal.
[0054] Exemplarily, the signal value of the second feedback signal is the corresponding voltage value. In the embodiments of the present disclosure, the case where the first feedback signal is a sine signal is taken as an example for introduction. In this case, the signal type of the second feedback signal is a cosine signal. From the above content, the pre-acquired excitation signal is Vr = Vp×sin(wt); the voltage ratio parameter is k; the second feedback signal is V b = Vp*sin(wt)*cosθ*k.
[0055] It is known that the first feedback signal is a sine signal with the same angle as the second feedback signal, and the form of the first feedback signal is Va = Vp * sin(wt) * sinθ * k. From the above formula, it can be seen that the excitation signal and the voltage transformation ratio parameter are both known. Therefore, if the first feedback signal is to be determined, only the function value of sinθ needs to be determined.
[0056] Based on the second feedback signal, it can be calculated that
[0057] and then the initial angle.
[0058] As Figure 3 shown, the Vy values corresponding to the two angles at θ1 and θ2 are the same respectively. Therefore, the initial angle includes the first angle and the second angle, and the difference between the first angle and the second angle is 90 degrees.
[0059] In step S12, based on the historical first feedback signal set within a preset historical time period and the initial angle, the target angle is determined.
[0060] Exemplarily, the target angle can be predicted according to the data in the historical first feedback signal set within the historical time period. Specifically, a neural network model can be constructed, with the historical first feedback signal, the initial angle, etc. within the preset historical time period as input features and the target angle as the output label to train the neural network. After the training is completed, the trained neural network model is used to predict the target angle according to the current historical first feedback signal and the initial angle.
[0061] In some embodiments, the historical first feedback signal set includes at least two historical first feedback signals.
[0062] The above step S12 can also be implemented in the following way: determine the historical angle and historical moment corresponding to any historical first feedback signal; based on the historical angles and historical moments corresponding to at least two historical first feedback signals, select the target angle from the initial angles.
[0063] Exemplarily, after at least two historical first feedback signals are known, data interpolation can be performed according to the historical angles and historical moments corresponding to the at least two historical feedback signals to obtain the target angle corresponding to the current moment. When performing data interpolation, it can be determined according to the relationship between the angle obtained at the current moment and the first angle and the second angle. If the difference from the first angle is less than the difference from the second angle, the target angle is the first angle; otherwise, vice versa.
[0064] In step S13, based on the target angle, the voltage transformation ratio parameter, and the excitation signal, the target first feedback signal at the current moment is generated.
[0065] Exemplarily, after determining the target angle, the target angle is substituted into the formula of the above first feedback signal to calculate the target first feedback signal.
[0066] For example, based on the signal type of the first feedback signal and the target angle, a first function value is determined; the product of the first function value, the turns ratio parameter, and the exciting signal is used as the target first feedback signal.
[0067] Based on the above embodiments, when the feedback signal of the resolver of the vehicle is abnormal, the above abnormal situation is processed without stopping the vehicle operation. This reduces the failure rate of the vehicle and avoids the risk of stopping the vehicle on the road due to signal abnormalities.
[0068] It should be noted that although the method in the embodiments of the present disclosure can continue to operate when the feedback signal of the resolver is abnormal, it cannot be used as a long-term reliance means. Fault prompt information needs to be generated based on the abnormal information of the first feedback signal to prompt vehicle faults, so as to perform vehicle maintenance when convenient.
[0069] Through the resolver signal processing method of the embodiments of the present application, in response to monitoring the abnormal information of the first feedback signal, since the first feedback signal and the second feedback signal are sine and cosine signals with the same angle, the initial angle corresponding to the resolver can be determined according to the second feedback signal, the pre-acquired exciting signal, and the turns ratio parameter; further, based on the historical first feedback signal set within a preset historical time period and the initial angle, the target angle is determined; based on the target angle, the turns ratio parameter, and the exciting signal, the target first feedback signal at the current moment is generated. The processing of the first feedback signal during vehicle operation is realized, the failure rate of the vehicle is reduced, and the user experience is improved to a certain extent.
[0070] Corresponding to the implementation manner of the above signal acquisition method, the embodiments of the present disclosure further provide a resolver signal processing device for executing the resolver signal processing method of any one of the above Figure 1 illustrated embodiments, as Figure 4 shown, the resolver signal processing device includes:
[0071] An initial angle determination module 401, configured to, in response to monitoring the abnormal information of the first feedback signal, determine the initial angle of the resolver based on the second feedback signal, the pre-acquired exciting signal, and the turns ratio parameter; the signal type of the first feedback signal is a sine signal or a cosine signal; the signal type of the second feedback signal is a cosine signal or a sine signal with the same angle as the first feedback signal; the first feedback signal and the second feedback signal have the same angle;
[0072] The target angle determination module 402 is configured to determine a target angle based on a set of historical first feedback signals within a preset historical time period and the initial angle;
[0073] The target first feedback signal determination module 403 is configured to generate a target first feedback signal at the current moment based on the target angle, the turns ratio parameter, and the excitation signal.
[0074] The resolver signal processing device provided in the foregoing embodiments of the present disclosure and the resolver signal processing method provided in the embodiments of the present disclosure are based on the same inventive concept and have the same beneficial effects as the methods adopted, run, or implemented by the application programs stored therein.
[0075] The embodiments of the present disclosure further provide an electronic device for executing the foregoing method. Please refer to Figure 5 which shows a schematic diagram of an electronic device provided in some embodiments of the present disclosure. As Figure 5 shown, the electronic device includes: a processor 500, a memory 501, a bus 502, and a communication interface 503. The processor 500, the communication interface 503, and the memory 501 are connected through the bus 502; a computer program that can run on the processor 500 is stored in the memory 501, and when the processor 500 runs the computer program, it executes the method provided in any of the foregoing Figure 1 schematic embodiments.
[0076] Among them, the memory 501 may include a high-speed random access memory (Random Access Memory, RAM), and may also include a non-volatile memory, such as at least one disk memory. Through at least one communication interface 503 (which can be wired or wireless), a communication connection is realized between this system network element and at least one other network element, and the Internet, a wide area network, a local area network, a metropolitan area network, etc. can be used.
[0077] The bus 502 may be an ISA bus, a PCI bus, an EISA bus, etc. The bus can be divided into an address bus, a data bus, a control bus, etc. Among them, the memory 501 is used to store a program, and after receiving an execution instruction, the processor 500 executes the program, and the method disclosed in any of the foregoing Figure 1 schematic embodiments can be applied to the processor 500 or implemented by the processor 500.
[0078] The processor 500 may be an integrated circuit chip with the ability to process signals. In the implementation process, each step of the above method can be completed by the integrated logic circuit of the hardware in the processor 500 or the instructions in the form of software. The above-mentioned processor 500 may be a general-purpose processor, including a central processing unit (CPU for short), a network processor (NP for short), etc.; it may also be a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components. It can implement or execute the various methods, steps and logic block diagrams disclosed in the embodiments of the present disclosure. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc. The steps of the method disclosed in combination with the embodiments of the present disclosure can be directly embodied as being executed and completed by a hardware decoding processor, or executed and completed by a combination of hardware and software modules in the decoding processor. The software module may be located in a mature storage medium in the art such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory or an electrically erasable programmable memory, a register, etc. This storage medium is located in the memory 501, and the processor 500 reads the information in the memory 501 and combines its hardware to complete the steps of the above method.
[0079] The electronic device provided by the embodiments of the present disclosure and the method provided by the embodiments of the present disclosure are based on the same inventive concept and have the same beneficial effects as the method adopted, run or implemented by it.
[0080] The embodiments of the present disclosure also provide a computer-readable storage medium corresponding to the method provided by the foregoing embodiments. Please refer to Figure 6 , which shows that the computer-readable storage medium is an optical disc 30, on which a computer program (i.e., a program product) is stored. When the computer program is run by a processor, it will execute the method provided by any of the foregoing embodiments.
[0081] It should be noted that examples of the computer-readable storage medium may also include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other optical and magnetic storage media, which will not be elaborated here one by one.
[0082] The computer-readable storage medium provided by the above embodiments of the present disclosure and the method provided by the embodiments of the present disclosure are based on the same inventive concept and have the same beneficial effects as the method adopted, run or implemented by the application program stored in it.
[0083] It should be noted that:
[0084] In the specification provided herein, a large number of specific details are set forth. However, it will be understood that embodiments of the present disclosure may be practiced without these specific details. In some instances, well-known structures and techniques have not been shown in detail so as not to obscure the understanding of this specification.
[0085] Similarly, it should be understood that, in order to streamline the present disclosure and assist in understanding one or more of the various inventive aspects, in the foregoing description of the exemplary embodiments of the present disclosure, various features of the present disclosure are sometimes grouped together in a single embodiment, figure, or description thereof. However, the disclosed method should not be construed as reflecting an intention that: the claimed subject matter of the present disclosure requires more features than are expressly recited in each embodiment. The inventive aspects lie in less than all of the features of the single foregoing disclosed embodiment. Accordingly, the implementation of the following specific embodiments is hereby expressly incorporated into that specific embodiment, where each embodiment stands on its own as a separate embodiment of the present disclosure.
[0086] Furthermore, those skilled in the art will appreciate that, although some embodiments described herein include certain features included in other embodiments but not others, the combination of features of different embodiments is meant to be within the scope of the present disclosure and forms different embodiments.
[0087] The foregoing is only a preferred specific embodiment of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed by the present disclosure should be covered by the protection scope of the present disclosure.
Claims
1. A method for processing a rotary transformer signal, characterized in that: The method comprises: In response to the abnormal information of the monitored first feedback signal, the initial angle of the rotary transformer is determined based on the second feedback signal, the pre-acquired excitation signal and the transformation ratio parameter; the signal type of the first feedback signal is a sine signal or a cosine signal; the signal type of the second feedback signal is a cosine signal or a sine signal with the same angle as the first feedback signal; the first feedback signal and the second feedback signal have the same angle; Determining a target angle based on a historical first feedback signal set within a preset historical time period and the initial angle; A target first feedback signal at the current moment is generated based on the target angle, the transformation ratio parameter and the excitation signal.
2. The method according to claim 1, characterized in that The first feedback signal being abnormal includes that the first feedback signal is not obtained, or the first feedback signal does not meet a preset standard.
3. The method according to claim 1, characterized in that The determining the initial angle of the rotary transformer based on the second feedback signal, the pre-acquired excitation signal and the transformation ratio parameter includes: Calculating a function value corresponding to the signal type based on the excitation signal, the transformation ratio parameter, and the signal value of the second feedback signal; The initial angle is determined based on the function value and a signal type of the second feedback signal.
4. The method according to claim 3, characterized in that The historical first feedback signal set includes at least two historical first feedback signals, The determining of the target angle based on the historical first feedback signal set within a preset historical time period and the initial angle includes: Determine the historical angle and historical moment corresponding to any historical first feedback signal; The target angle is selected from the initial angles based on the historical angles and historical moments respectively corresponding to the at least two historical first feedback signals.
5. The method according to claim 4, characterized in that The initial angle includes a first angle and a second angle, and the first angle and the second angle differ by 90 degrees.
6. The method according to claim 1, characterized in that The generating a target first feedback signal at a current moment based on the target angle, the transformer ratio parameter and the excitation signal comprises: determining a first function value based on a signal type of the first feedback signal and the target angle; The product of the first function value, the transformation ratio parameter and the excitation signal is used as the target first feedback signal.
7. The method according to any one of claims 1 to 6, characterized in that: The method further comprises: Fault prompt information is generated based on the abnormal information of the first feedback signal.
8. A rotary transformer signal processing device, characterized in that: The device comprises: An initial angle determination module is used to determine the initial angle of the rotary transformer in response to the abnormal information of the monitored first feedback signal, based on the second feedback signal, the pre-acquired excitation signal and the transformation ratio parameter; the signal type of the first feedback signal is a sine signal or a cosine signal; the signal type of the second feedback signal is a cosine signal or a sine signal with the same angle as the first feedback signal; A target angle determination module, configured to determine a target angle based on a historical first feedback signal set within a preset historical time period and the initial angle; The target first feedback signal determination module is used to generate a target first feedback signal at a current moment based on the target angle, the transformation ratio parameter and the excitation signal.
9. An electronic device comprising a memory, a processor and a computer program stored in the memory, wherein the processor implements the method according to any one of claims 1 to 7 when executing the computer program.
10. A computer-readable storage medium, wherein a computer program is stored in the computer-readable storage medium, and when the computer program is executed by a processor, the method according to any one of claims 1 to 7 is implemented.