Rotary transformer testing device

Abstract

The invention provides a rotary transformer testing device, and relates to the technical field of testing, the rotary transformer testing device comprises a fault setting assembly, the fault setting assembly is connected with a tested rotary transformer, the fault setting assembly is used for simulating a rotary transformer fault, and the rotary transformer fault at least comprises one of a rotary transformer mechanical fault and a rotary transformer signal fault; the data acquisition assembly is electrically connected with the detected rotary transformer decoding unit and the fault setting assembly, and the data acquisition assembly is used for acquiring an output signal of the detected rotary transformer decoding unit and working information of the fault setting assembly; and the control assembly is electrically connected with the fault setting assembly and the data acquisition assembly, and the control assembly is at least used for controlling the fault setting assembly to simulate the rotary transformer fault, so that the problem that the reliability of the rotary transformer for detecting the rotating speed of the motor is insufficient in the prior art is solved.

Description

Technical Field

[0001] The present invention relates to the field of testing technology, and in particular to a rotary transformer testing device. Background Art

[0002] The resolver, or resolver for short, is a key component in new energy vehicles. It is usually placed coaxially with the motor and is used to detect the speed and angle of the motor.

[0003] Usually, due to its placement, the resolver is subject to harsh environmental loads. Strong vibrations and electrical noise from the motor will seriously affect the accuracy of resolver decoding. In order to ensure accurate monitoring of the motor speed, it is necessary to conduct fault simulation experiments on the resolver during the development stage of the new energy vehicle drive controller. Summary of the invention

[0004] The main purpose of the present invention is to provide a rotary transformer testing device to solve the problem of insufficient reliability of rotary transformer in detecting motor speed in the prior art.

[0005] In order to achieve the above-mentioned object, according to one aspect of the present invention, a rotary transformer test device is provided. The rotary transformer test device comprises: a fault setting component, the fault setting component is connected to the measured rotary transformer, the fault setting component is used to simulate the rotary transformer fault, and the rotary transformer fault includes at least one of the following: rotary transformer mechanical fault, rotary transformer signal fault; a data acquisition component, the data acquisition component is electrically connected to the measured rotary transformer decoding unit and the fault setting component, the data acquisition component is used to collect the output signal of the measured rotary transformer decoding unit, and the working information of the fault setting component; a control component, the control component is electrically connected to the fault setting component and the data acquisition component, and the control component is at least used to control the fault setting component to simulate the rotary transformer fault.

[0006] Furthermore, the fault setting component includes: a mechanical fault simulation component, which at least includes a tooling fixture and a drive motor. The measured resolver is set on the output shaft of the drive motor. The tooling fixture is used to clamp the measured resolver, and the tooling fixture can drive the measured resolver to be movable relative to the output shaft of the drive motor to simulate the mechanical fault of the resolver.

[0007] Furthermore, the fault setting component includes: a signal fault simulation component, the signal fault simulation component at least includes a control switch, the control switch is connected in series between the measured resolver decoding unit and the measured resolver, and the control switch is used to control the signal on and off between the measured resolver decoding unit and the measured resolver to simulate the resolver signal fault.

[0008] Furthermore, the fault setting component also includes a fault setting unit, which includes: a mechanical fault setting unit, which is electrically connected to the control component, and is used to receive a mechanical fault test signal of the control component, and control the mechanical fault simulation component to simulate a resolver mechanical fault based on the mechanical fault test signal; a signal fault setting unit, which is electrically connected to the control component, and is used to receive a signal fault test signal of the control component, and control the signal fault simulation component to simulate a resolver signal fault based on the signal fault test signal.

[0009] Furthermore, the control switch is a relay.

[0010] Furthermore, the mechanical fault setting unit includes: an offset control device, which is connected to the fixture through a solenoid valve, and is used to control the fixture to perform position offset to simulate a resolver mechanical fault.

[0011] Furthermore, the rotary transformer testing device also includes: a human-machine interaction component, the human-machine interaction component includes a human-machine interaction module, and the human-machine interaction module is used to obtain instructions.

[0012] Furthermore, the resolver testing device also includes: a motor drive component, the motor drive component is communicatively connected to the control component, the control component generates a motor drive signal based on an instruction, and the motor drive component drives the drive motor to rotate based on the motor drive signal.

[0013] Furthermore, the human-computer interaction component also includes: a keyboard, a mouse, a display screen, a hard disk, a USB interface, and a CAN interface. The keyboard, the mouse, the display screen, the hard disk, the USB interface, and the CAN interface respectively exchange information with the human-computer interaction module.

[0014] Furthermore, the resolver test device also includes: a power supply component, the power supply component includes an AD-DC control power supply and an AC-DC motor power supply, the AD-DC control power supply supplies power to the human-machine interaction component through a first branch, the AD-DC control power supply supplies power to the DC-DC power supply through a second branch, the AC-DC motor power supply supplies power to the drive motor, and the DC-DC power supply supplies power to the control component, the motor drive component, the data acquisition component, and the fault setting component respectively.

[0015] By applying the technical solution of the present invention, a fault setting unit is set to simulate the resolver fault of the measured resolver, and the data acquisition component and the control component work together. The fault setting unit is provided with mechanical faults and signal faults to simulate faults from different aspects. The measured resolver decoding unit is used to decode the measured resolver, thereby simulating whether the measured resolver decoding unit can continue to work effectively and identify the fault state in the case of a fault of the measured resolver, so as to verify the accuracy and reliability of the decoding performed by the measured resolver decoding unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0017] Figure 1 It shows a structural schematic diagram of a first embodiment of a rotary transformer testing device according to the present invention;

[0018] Figure 2 It shows a structural schematic diagram of a second embodiment of a rotary transformer testing device according to the present invention;

[0019] Figure 3 A structural schematic diagram of a third embodiment of a rotary transformer testing device according to the present invention is shown.

[0020] The above drawings include the following reference numerals:

[0021] 100. The measured resolver;

[0022] 200. a resolver decoding unit under test;

[0023] 10. Fault setting component;

[0024] 11. Mechanical failure simulation component;

[0025] 111. Fixtures and fixtures;

[0026] 112. Driving motor;

[0027] 12. Signal fault simulation component;

[0028] 121. Control switch;

[0029] 13. Fault setting unit;

[0030] 131. Mechanical failure setting unit;

[0031] 1311, offset control device;

[0032] 132. Signal fault setting unit;

[0033] 20. Data collection component;

[0034] 30. Control components;

[0035] 40. Human-computer interaction components;

[0036] 41. Human-computer interaction module;

[0037] 42. Keyboard;

[0038] 43. Mouse;

[0039] 44. Display screen;

[0040] 45. Hard disk;

[0041] 46. ​​USB interface;

[0042] 47. CAN interface;

[0043] 50. Motor drive assembly;

[0044] 60. Power supply components;

[0045] 61. AD-DC control power supply;

[0046] 62. AC-DC motor power supply;

[0047] 63. DC-DC power supply. DETAILED DESCRIPTION

[0048] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0049] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0050] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0051] Now, exemplary embodiments according to the present application will be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments may be implemented in a variety of different forms and should not be construed as being limited to the embodiments described herein. It should be understood that these embodiments are provided to make the disclosure of the present application thorough and complete, and to fully convey the concepts of these exemplary embodiments to those of ordinary skill in the art. In the accompanying drawings, for the sake of clarity, the thickness of the layers and regions may be enlarged, and the same reference numerals are used to represent the same devices, and thus their descriptions will be omitted.

[0052] Combination Figure 1 As shown, according to a specific embodiment of the present invention, a rotary transformer testing device is provided.

[0053] Specifically, Figure 1 As shown, the rotary transformer test device includes: a fault setting component 10, the fault setting component 10 is connected to the measured rotary transformer 100, and the fault setting component 10 is used to simulate the rotary transformer fault, and the rotary transformer fault includes at least one of the following: a rotary transformer mechanical fault and a rotary transformer signal fault; a data acquisition component 20, the data acquisition component 20 is electrically connected to the measured rotary transformer decoding unit 200 and the fault setting component 10, and the data acquisition component 20 is used to collect the output signal of the measured rotary transformer decoding unit 200 and the working information of the fault setting component 10; a control component 30, the control component 30 is electrically connected to the fault setting component 10 and the data acquisition component 20, and the control component 30 is at least used to control the fault setting component 10 to simulate the rotary transformer fault.

[0054] In this embodiment, the fault setting component 10 is set to simulate the resolver fault of the measured resolver 100, the data acquisition component 20 and the control component 30 work together, the fault setting component 10 is provided with mechanical faults and signal faults to simulate faults from different aspects, and the measured resolver decoding unit 200 is used to decode the measured resolver 100, thereby simulating whether the measured resolver decoding unit 200 can continue to work effectively and identify the fault state when the measured resolver 100 fails, so as to verify the accuracy and reliability of the decoding performed by the measured resolver decoding unit 200.

[0055] like Figure 2 As shown, the fault setting component 10 includes: a mechanical fault simulation component 11, the mechanical fault simulation component 11 at least includes a fixture 111 and a drive motor 112, the measured resolver 100 is set on the output shaft of the drive motor 112, the fixture 111 is used to clamp the measured resolver 100, and the fixture 111 can drive the measured resolver 100 to be movable relative to the output shaft of the drive motor 112 to simulate the resolver mechanical fault.

[0056] By using the fixture 111 and the drive motor 112 in combination, various mechanical faults that the resolver sensor may encounter during actual use, such as axial offset, radial offset, etc., can be simulated, thereby improving the accuracy of fault simulation. The fixture 111 can adjust the clamping position and strength as needed, making the fault simulation more flexible and adjustable, and capable of simulating mechanical faults under a variety of different conditions. By simulating different mechanical faults, a more comprehensive analysis and diagnosis of the fault response of the resolver 100 under test can be performed.

[0057] It should be noted that the drive motor 112 is set as a servo motor, which is a motor that can accurately control its movement and is usually used in automated equipment that requires precise positioning and repeatability. The resolver is a sensor that can detect the rotation angle and speed of its rotating shaft. In this device or system, the servo motor and the resolver work together. Specifically, the rotation of the servo motor drives the resolver, which then generates a signal based on its rotation. The system monitors the speed of the servo motor, which is achieved through a sensor inside the motor or an external sensor. The resolver outputs a signal, and the measured resolver decoding unit 200 decodes this signal, and the decoding result can be used to determine the rotation angle and speed of the resolver. The system compares this decoding result with the actual speed of the servo motor. By comparing the actual speed of the servo motor and the decoding result of the resolver, the system can determine whether the decoding circuit of the resolver is working properly. If the readings of the two are consistent, it means that the decoding circuit is working properly; if they are inconsistent, it may indicate that there is a problem with the decoding circuit or the resolver itself. This system may be used in applications that require precise control and feedback, such as robots, precision machining, or automated production lines.

[0058] Furthermore, the fault setting component 10 includes: a signal fault simulation component 12, the signal fault simulation component 12 at least includes a control switch 121, the control switch 121 is connected in series between the measured resolver decoding unit 200 and the measured resolver 100, and the control switch 121 is used to control the signal on and off between the measured resolver decoding unit 200 and the measured resolver 100 to simulate the resolver signal fault.

[0059] Specifically, by controlling the on and off of the switch 121 , a resolver signal fault situation can be simulated, so that the resolver decoding unit 200 and the resolver 100 under test can be diagnosed and tested without the actual occurrence of a fault.

[0060] Furthermore, the fault setting component 10 also includes a fault setting unit 13, which includes: a mechanical fault setting unit 131, which is electrically connected to the control component 30, and is used to receive a mechanical fault test signal from the control component 30, and control the mechanical fault simulation component 11 to simulate a rotary transformer mechanical fault based on the mechanical fault test signal; a signal fault setting unit 132, which is electrically connected to the control component 30, and is used to receive a signal fault test signal from the control component 30, and control the signal fault simulation component 12 to simulate a rotary transformer signal fault based on the signal fault test signal.

[0061] The independence of the mechanical fault setting unit 131 and the signal fault setting unit 132 makes the test process more flexible. Mechanical faults or signal faults can be tested separately as needed, or both can be tested at the same time to meet different test requirements. By electrically connecting the control component 30, the fault setting unit can accurately receive and respond to the test signal sent by the control component to ensure the accuracy of the fault simulation. The integrated fault simulation component can be quickly switched and configured, which improves the efficiency of the test process and reduces the test time and cost. The fault setting unit can control the fault simulation component to simulate a specific fault based on the received test signal, which makes the test process more controllable and can accurately simulate and test various fault conditions according to the test plan.

[0062] In this embodiment, the control switch 121 is a relay. In other embodiments, the control switch 121 can also be a semiconductor switch, a photoelectric switch, a magnetic switch, a pressure switch, etc.

[0063] Furthermore, the mechanical fault setting unit 131 includes: an offset control device 1311, which is connected to the fixture 111 through a solenoid valve, and is used to control the fixture 111 to perform position offset to simulate a resolver mechanical fault.

[0064] Among them, the offset control device 1311 is connected to the fixture 111 through an electromagnetic valve, the measured resolver 100 is coaxially arranged by the fixture 111 and the drive motor 112, the fixture 111 has the function of changing the coaxiality of the resolver and the height difference between the rotor and the stator, the drive motor 112 is built inside the test device, and the fixture 111 is adjustable, which can meet the use of the measured resolver 100 with different inner and outer diameters. Three groups of signal lines (one group of excitation signal lines and two groups of return value signal lines) are connected between the measured resolver decoding unit 200 and the measured resolver 100, and relays are installed on the signal lines. When the fault setting component 10 receives the instruction of the control component 30 to simulate the fault situation, it can drive the electromagnetic valve to change the position of the fixture 111 through the offset control device 1311, thereby changing the resolver coaxiality and the height difference between the rotor and the stator to the target value, and it can also change the on-off state of the excitation and return value signal lines between the measured resolver decoding unit 200 and the measured resolver 100 through the relay. This achieves the goal of simulating the occurrence of a fault.

[0065] Furthermore, the rotary transformer testing device further includes: a human-machine interaction component 40, the human-machine interaction component 40 includes a human-machine interaction module 41, and the human-machine interaction module 41 is used to obtain instructions.

[0066] Furthermore, the human-computer interaction component 40 also includes: a keyboard 42, a mouse 43, a display screen 44, a hard disk 45, a USB interface 46, and a CAN interface 47. The keyboard 42, the mouse 43, the display screen 44, the hard disk 45, the USB interface 46, and the CAN interface 47 respectively interact with the human-computer interaction module 41 for information.

[0067] Furthermore, the resolver testing device further includes: a motor drive component 50, the motor drive component 50 is communicatively connected with the control component 30, the control component 30 generates a motor drive signal based on an instruction, and the motor drive component 50 drives the drive motor 112 to rotate based on the motor drive signal.

[0068] Specifically, the human-computer interaction component 40 is connected to the control component 30 via a CAN line. The control component 30 receives instructions from the human-computer interaction module 41 to control the drive motor 112, collect the motor current, voltage and speed, and control the fault status. The human-computer interaction module 41 receives the data uploaded by the control component 30 for display, storage, data export and data playback.

[0069] The control component 30 communicates with the motor drive component 50 , the data acquisition component 20 , and the fault setting component 10 via SPI, and can send the set motor target speed and target fault to the motor drive component 50 and the fault setting component 10 .

[0070] The data acquisition component 20 is connected to the motor drive component 50 through the sampling circuit and is connected to the fault setting component 10 through the SPI, and can effectively collect the motor current, voltage, speed, resolver coaxiality, rotor-stator height difference, resolver signal line on-off state, and feed the data back to the control component 30. The fault setting component 10 is connected to the measured resolver 100 through the electromagnetic valve and the wire, and the fault setting component 10 is connected to the measured resolver decoding unit 200 through the external connector.

[0071] like Figure 3 As shown, the rotary transformer testing device also includes: a power supply component 60, the power supply component 60 includes an AD-DC control power supply 61 and an AC-DC motor power supply 62, the AD-DC control power supply 61 supplies power to the human-machine interaction component 40 through a first branch, the AD-DC control power supply 61 supplies power to the DC-DC power supply 63 through a second branch, the AC-DC motor power supply 62 supplies power to the drive motor 112, and the DC-DC power supply 63 supplies power to the control component 30, the motor drive component 50, the data acquisition component 20, and the fault setting component 10 respectively.

[0072] By dividing the power supply components into AD-DC controlled power supply and AC-DC motor power supply, a modular design of the power supply is achieved. This design makes the power supply between each component more independent and easy to maintain and upgrade. The AD-DC controlled power supply supplies power to different components through different branches, which can ensure that each component receives a stable and appropriate power supply, thereby improving the power supply efficiency of the entire system. By supplying power to multiple components through a DC-DC power supply, when a component fails, the normal operation of other components will not be affected, thereby improving the reliability of the entire system. This power supply method provides flexibility, and the power supply of each component can be adjusted as needed to meet different testing requirements.

[0073] The measured resolver decoding unit 200 includes a resolver decoding chip, supporting circuits and a single-chip microcomputer. The resolver decoding chip is the core of the decoding unit, responsible for decoding the received resolver signal (usually an angle-encoded signal) and converting the analog signal into a digital signal so that it can be read and processed by a computer or a control system. The resolver decoding chip is directly connected to the resolver, which is responsible for measuring the rotation angle and converting this angle into a corresponding electrical signal. The resolver decoding chip is responsible for interpreting these signals and providing accurate angle readings. The supporting circuits include power management, signal amplification, filtering, protection and other circuits to ensure that the resolver decoding chip can work in a stable environment and can accurately process and transmit signals. The single-chip microcomputer (MCU) is a microcontroller that is responsible for controlling the overall operation of the resolver decoding unit, including the reception, processing and output of data. The single-chip microcomputer can execute complex algorithms to further process the decoded data, such as filtering, calibration, etc. The single-chip microcomputer receives the data processed by the resolver decoding chip, performs further processing and calculation as needed, and then outputs the results to the user or other systems, such as a display screen or a control system. In general, the measured resolver decoding unit 200 can accurately measure and decode the angle signals provided by the resolver sensor through the coordinated work of these components, and convert these signals into digital signals that can be further processed and used.

[0074] In another embodiment of the present application, a rotary transformer test device can be used for the excitation of the rotary transformer, the accuracy of the decoding circuit, and the reliability test. The device can control the servo motor to run smoothly at different speeds, and accurately monitor and display the parameters of the servo motor. The information decoded by the measured rotary transformer decoding unit is compared with the monitoring information of the device to verify the accuracy of the decoding circuit. The device can also adjust the coaxiality of the rotary transformer, the height difference between the rotor and the stator, and the on-off state of the rotary transformer signal line, simulate the possible fault state of the rotary transformer, and observe whether the measured rotary transformer decoding unit can effectively identify the fault state to verify the reliability of the decoding circuit.

[0075] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0076] (1) The entire test device has a built-in servo motor and fixtures that can meet different inner and outer diameters, and can simulate the occurrence of various fault conditions.

[0077] (2) Visualizing the target speed, target fault condition, and actual motor current, voltage, speed, and fault condition makes operation easier.

[0078] (3) The built-in adjustable speed servo motor, adjustable fixture and fault setting unit can simulate the state of the resolver in a real vehicle environment.

[0079] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0080] In addition to the above, it should be noted that "one embodiment", "another embodiment", "embodiment", etc. mentioned in this specification refer to the specific features, structures or characteristics described in conjunction with the embodiment included in at least one embodiment generally described in this application. The same expression appearing in multiple places in the specification does not necessarily refer to the same embodiment. Further, when describing a specific feature, structure or characteristic in conjunction with any embodiment, it is claimed that the realization of such feature, structure or characteristic in conjunction with other embodiments also falls within the scope of the present invention.

[0081] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0082] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A rotary transformer testing device, characterized in that: include: A fault setting component (10), the fault setting component (10) being connected to a resolver (100) to be measured, the fault setting component (10) being used to simulate a resolver fault, the resolver fault comprising at least one of the following: a resolver mechanical fault, a resolver signal fault; A data acquisition component (20), the data acquisition component (20) being electrically connected to the measured resolver decoding unit (200) and the fault setting component (10), the data acquisition component (20) being used to collect an output signal of the measured resolver decoding unit (200) and working information of the fault setting component (10); A control component (30), the control component (30) being electrically connected to the fault setting component (10) and the data acquisition component (20), the control component (30) being at least used to control the fault setting component (10) to simulate the resolver fault.

2. The rotary transformer testing device according to claim 1, characterized in that: The fault setting component (10) comprises: A mechanical fault simulation component (11), the mechanical fault simulation component (11) comprising at least a fixture (111) and a drive motor (112), the measured resolver (100) being arranged on the output shaft of the drive motor (112), the fixture (111) being used to clamp the measured resolver (100), and the fixture (111) being able to drive the measured resolver (100) to be movably arranged relative to the output shaft of the drive motor (112) to simulate a mechanical fault of the resolver.

3. The rotary transformer testing device according to claim 2, characterized in that: The fault setting component (10) comprises: A signal fault simulation component (12), the signal fault simulation component (12) comprising at least a control switch (121), the control switch (121) being connected in series between the measured resolver decoding unit (200) and the measured resolver (100), the control switch (121) being used to control the on / off of signals between the measured resolver decoding unit (200) and the measured resolver (100), so as to simulate a resolver signal fault.

4. The rotary transformer testing device according to claim 3, characterized in that: The fault setting component (10) further comprises a fault setting unit (13), wherein the fault setting unit (13) comprises: A mechanical fault setting unit (131), the mechanical fault setting unit (131) being electrically connected to the control component (30), the mechanical fault setting unit (131) being used to receive a mechanical fault test signal from the control component (30), and to control the mechanical fault simulation component (11) to simulate the resolver mechanical fault based on the mechanical fault test signal; A signal fault setting unit (132), the signal fault setting unit (132) being electrically connected to the control component (30), the signal fault setting unit (132) being used to receive a signal fault test signal from the control component (30), and to control the signal fault simulation component (12) to simulate the resolver signal fault based on the signal fault test signal.

5. The rotary transformer testing device according to claim 3, characterized in that: The control switch (121) is a relay.

6. The rotary transformer testing device according to claim 4, characterized in that: The mechanical fault setting unit (131) comprises: An offset control device (1311), wherein the offset control device (1311) is connected to the fixture (111) via a solenoid valve, and the offset control device (1311) is used to control the fixture (111) to perform position offset to simulate a mechanical failure of the resolver.

7. The rotary transformer testing device according to claim 2, characterized in that: The rotary transformer testing device also includes: A human-computer interaction component (40), wherein the human-computer interaction component (40) comprises a human-computer interaction module (41), and the human-computer interaction module (41) is used to obtain instructions.

8. The rotary transformer testing device according to claim 7, characterized in that: The rotary transformer testing device also includes: A motor drive component (50), wherein the motor drive component (50) is communicatively connected to the control component (30), the control component (30) generates a motor drive signal based on the instruction, and the motor drive component (50) drives the drive motor (112) to rotate based on the motor drive signal.

9. The rotary transformer testing device according to claim 8, characterized in that: The human-computer interaction component (40) further comprises: a keyboard (42), a mouse (43), a display screen (44), a hard disk (45), a USB interface (46), and a CAN interface (47); the keyboard (42), the mouse (43), the display screen (44), the hard disk (45), the USB interface (46), and the CAN interface (47) respectively perform information exchange with the human-computer interaction module (41).

10. The rotary transformer testing device according to claim 9, characterized in that: The rotary transformer testing device also includes: A power supply component (60), the power supply component (60) comprising an AD-DC control power supply (61) and an AC-DC motor power supply (62), the AD-DC control power supply (61) supplies power to the human-machine interaction component (40) through a first branch, the AD-DC control power supply (61) supplies power to a DC-DC power supply (63) through a second branch, the AC-DC motor power supply (62) supplies power to the drive motor (112), and the DC-DC power supply (63) supplies power to the control component (30), the motor drive component (50), the data acquisition component (20), and the fault setting component (10) respectively.

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