Dual-redundancy control system of steering engine

Abstract

The utility model provides a dual-redundancy control system of a steering engine. The dual-redundancy control system comprises a CAN bus module, a first information processor module, a second information processor module, a first signal isolation module, a second signal isolation module, a first motor driving circuit module, a second motor driving circuit module and a dual-redundancy direct current motor. Compared with the prior art, stable redundancy switching is achieved, it is guaranteed that the steering engine and the steering engine controller can still work when multiple fault points occur, and the task reliability of the steering engine and the steering engine controller is improved to the maximum degree.

Description

Technical Field

[0001] The utility model relates to the technical field of electric servo control, in particular to a dual-redundancy control system of a steering gear. Background Art

[0002] As a key actuator on an aircraft, the servo will threaten the flight safety of the aircraft once it fails. The performance and reliability of the servo directly affect the safety and reliability of the aircraft. Most of the more advanced aircraft use electric servos driven by servo motors. To improve the reliability of the servo, the method of improving the performance and reliability of each control element and motor is not effective at the level of technology development at that time, and the cost increases exponentially. Utility Model Content

[0003] In view of this, one of the technical problems solved by the embodiments of the utility model is to provide a dual-redundancy control system for a steering gear, so as to overcome the problem in the prior art that the effect of only relying on improving the performance and reliability of each control element and motor is not obvious.

[0004] In a first aspect, the utility model provides a dual-redundancy control system for a steering gear, the system comprising: a CAN bus module, a first information processor module, a second information processor module, a first signal isolation module, a second signal isolation module, a first motor drive circuit module, a second motor drive circuit module, and a dual-redundancy DC motor;

[0005] The CAN bus module has a first data connection with the first information processor module, and has a second data connection with the second information processor module; both the first data connection and the second data connection support instruction information data;

[0006] There is a first signal connection between the first information processor module and the first signal isolation module;

[0007] A second signal connection is provided between the first signal isolator module and the first motor drive circuit module;

[0008] A third signal connection is provided between the first motor drive circuit module and the dual-redundancy DC motor;

[0009] A fourth signal connection is provided between the second information processor module and the second signal isolation module;

[0010] A fifth signal connection is provided between the second signal isolation module and the second motor drive circuit module;

[0011] A sixth signal connection is provided between the second motor driving circuit module and the dual-redundancy DC motor.

[0012] In some embodiments,

[0013] The first signal isolation module is used to control the working mode of the first motor driving circuit module.

[0014] In some embodiments,

[0015] The second signal isolation module is used to control the working mode of the second motor drive circuit module.

[0016] In some embodiments,

[0017] The first information processor module and the second information processor module interact with each other via a bidirectional RAM.

[0018] In some embodiments,

[0019] The system also includes a transmission mechanism;

[0020] The transmission mechanism is used to control the steering gear to perform linear motion.

[0021] In some embodiments,

[0022] The system also includes a first position sensor and a second position sensor;

[0023] The first position sensor is used to collect first position information of the steering gear and send the first position information to the first information processing module;

[0024] The second position sensor is used to collect second position information of the steering gear and send the second position information to the second information processing module;

[0025] In some embodiments,

[0026] The first information processing module is used to generate a first control signal according to the first location information combined with comprehensive settlement.

[0027] In some embodiments,

[0028] The second information processing module is used to generate a second control signal according to the second location information in combination with comprehensive settlement.

[0029] In some embodiments,

[0030] The first motor driving circuit module is used for sending the first control signal to the dual-redundant DC motor.

[0031] In some embodiments,

[0032] The second motor driving circuit module is used for sending the second control signal to the dual-redundant DC motor.

[0033] In the embodiment of the utility model, the system includes: a CAN bus module, a first information processor module, a second information processor module, a first signal isolation module, a second signal isolation module, a first motor drive circuit module, a second motor drive circuit module, and a dual-redundancy DC motor; wherein, the CAN bus module has a first data connection with the first information processor module, and has a second data connection with the second information processor module; the first data connection and the second data connection both support instruction information data; the first information processor module has a first signal connection with the first signal isolation module; the first signal isolator module has a second signal connection with the first motor drive circuit module; the first motor drive circuit module has a third signal connection with the dual-redundancy DC motor; the second information processor module has a fourth signal connection with the second signal isolation module; the second signal isolation module has a fifth signal connection with the second motor drive circuit module; the second motor drive circuit module has a sixth signal connection with the dual-redundancy DC motor. Therefore, compared with the prior art, in the embodiment of the utility model, redundancy stable switching is realized to ensure that even when multiple fault points occur, the servo and servo controller can still work, thereby maximizing the task reliability of the servo and servo controller. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0035] Figure 1 The utility model discloses a structural schematic block diagram of a dual-redundancy control system of a steering gear. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0037] It should be noted that the terms "first", "second", "third" and "fourth" in the specification and claims of the utility model are used to distinguish different objects, rather than to describe a specific order. The terms "including" and "having" in the embodiments of the utility model and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, device, product or equipment that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or equipment.

[0038] like Figure 1 As shown, Figure 1 The utility model discloses a dual-redundancy control system of a steering gear, which comprises: a CAN bus module, a first information processor module, a second information processor module, a first signal isolation module, a second signal isolation module, a first motor drive circuit module, a second motor drive circuit module, and a dual-redundancy DC motor.

[0039] In this embodiment, the CAN bus module has a first data connection with the first information processor module, and has a second data connection with the second information processor module, and both the first data connection and the second data connection support instruction information data.

[0040] In this embodiment, a first signal connection is provided between the first information processor module and the first signal isolation module. The first information processor module is used to interact with the second information processor module through a bidirectional RAM. The first information processor module is used to generate a first control signal according to the first position information combined with the comprehensive settlement.

[0041] Among them, the first information processor module performs online fault analysis, diagnosis and reconstruction through the collected signals to ensure that the system can still work normally and its performance is not degraded when a single point failure occurs in any link.

[0042] In this embodiment, a fourth signal connection is provided between the second information processor module and the second signal isolation module. The second information processor module is used to generate a second control signal according to the second position information combined with the comprehensive settlement.

[0043] Among them, the second information processor module performs online fault analysis, diagnosis and reconstruction through the collected signals to ensure that the system can still work normally and its performance is not degraded when a single point failure occurs in any link.

[0044] In this embodiment, a second signal connection is provided between the first signal isolation module and the first motor drive circuit module. The first signal isolation module is used to control the working mode of the first motor drive circuit module, and the working mode includes a working state and a non-working state.

[0045] In this embodiment, a fifth signal connection is provided between the second signal isolation module and the second motor driving circuit module. The second signal isolation module is used to control the working mode of the second motor driving circuit module.

[0046] In this embodiment, there is a third signal connection between the first motor drive circuit module and the dual-redundant DC motor; the first motor drive circuit module is used to send the first control signal to the dual-redundant DC motor; the first motor drive circuit module is controlled by the host computer or the arbitration circuit to determine whether to receive the control signal.

[0047] In this embodiment, there is a sixth signal connection between the second motor drive circuit module and the dual-redundant DC motor; the second motor drive circuit module is used to send the second control signal to the dual-redundant DC motor; the second motor drive circuit module is controlled by the host computer or the arbitration circuit to determine whether to receive the control signal.

[0048] In this embodiment, the specific type of the dual-redundancy DC motor is not limited and can be reasonably selected according to actual application requirements.

[0049] Optionally, the system further comprises a transmission mechanism, and the transmission structure is used to control the steering gear to perform linear motion.

[0050] Optionally, the system further comprises a first position sensor and a second position sensor.

[0051] The first position sensor is connected to the first information processor module and the second information processor module. The first position sensor is used to collect the first position information of the steering gear and send the first position information to the first information processor module.

[0052] The second position sensor is connected to the first information processor module and the second information processor module. The second position sensor is used to collect the second position information of the steering gear and send the second position information to the second information processor module.

[0053] As can be seen from the above embodiments of the utility model, the system includes: a CAN bus module, a first information processor module, a second information processor module, a first signal isolation module, a second signal isolation module, a first motor drive circuit module, a second motor drive circuit module, and a dual-redundancy DC motor; wherein, the CAN bus module has a first data connection with the first information processor module, and has a second data connection with the second information processor module; the first data connection and the second data connection both support instruction information data; the first information processor module has a first signal connection with the first signal isolation module; the first signal isolator module has a second signal connection with the first motor drive circuit module; the first motor drive circuit module has a third signal connection with the dual-redundancy DC motor; the second information processor module has a fourth signal connection with the second signal isolation module; the second signal isolation module has a fifth signal connection with the second motor drive circuit module; the second motor drive circuit module has a sixth signal connection with the dual-redundancy DC motor. Therefore, compared with the prior art, in the embodiments of the utility model, redundancy stable switching is realized to ensure that even when multiple fault points occur, the servo and servo controller can still work, thereby maximizing the task reliability of the servo and servo controller.

[0054] So far, specific embodiments of the utility model have been described. Other embodiments are within the scope of the appended claims. In some cases, the actions recorded in the claims can be performed in a different order and still achieve the desired results. In addition, the processes depicted in the accompanying drawings do not necessarily require the specific order or sequential order shown to achieve the desired results. In some embodiments, multitasking and parallel processing can be advantageous.

[0055] The present invention is described with reference to the flowchart and / or block diagram of the method according to the embodiment of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of the processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the process in the flowchart. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0056] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, commodity or device including the elements.

[0057] It should be understood by those skilled in the art that the embodiments of the present invention can be provided as methods and devices. Therefore, the present invention can be in the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present invention can be in the form of a computer program product implemented on one or more computer storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer usable program code.

[0058] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the device embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0059] The above are only embodiments of the present invention and are 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 scope of the claims of the present invention.

Claims

1. A dual-redundancy control system for a steering gear, characterized in that: The system comprises: a CAN bus module, a first information processor module, a second information processor module, a first signal isolation module, a second signal isolation module, a first motor drive circuit module, a second motor drive circuit module, and a dual-redundancy DC motor; wherein the CAN bus module has a first data connection with the first information processor module, and has a second data connection with the second information processor module; the first data connection and the second data connection both support instruction information data; There is a first signal connection between the first information processor module and the first signal isolation module; A second signal connection is provided between the first signal isolation module and the first motor drive circuit module; A third signal connection is provided between the first motor drive circuit module and the dual-redundancy DC motor; A fourth signal connection is provided between the second information processor module and the second signal isolation module; A fifth signal connection is provided between the second signal isolation module and the second motor drive circuit module; A sixth signal connection is provided between the second motor driving circuit module and the dual-redundancy DC motor.

2. The system according to claim 1, characterized in that The first signal isolation module is used to control the working mode of the first motor driving circuit module.

3. The system according to claim 1, characterized in that The second signal isolation module is used to control the working mode of the second motor drive circuit module.

4. The system according to claim 1, characterized in that The first information processor module and the second information processor module interact with each other via a bidirectional RAM.

5. The system according to claim 1, characterized in that The system also includes a transmission mechanism; The transmission mechanism is used to control the steering gear to perform linear motion.

6. The system according to claim 1, characterized in that The system also includes a first position sensor and a second position sensor; Wherein, the first position sensor is connected to the first information processor module and the second information processor module, and the first position sensor is used to collect the first position information of the steering gear and send the first position information to the first information processor module; The second position sensor is connected to the first information processor module and the second information processor module, and the second position sensor is used to collect second position information of the steering gear and send the second position information to the second information processor module.

7. The system according to claim 6, characterized in that The first information processor module is used to generate a first control signal based on the first location information combined with comprehensive settlement.

8. The system according to claim 6, characterized in that The second information processor module is used to generate a second control signal based on the second location information in combination with comprehensive settlement.

9. The system according to claim 7, characterized in that The first motor driving circuit module is used for sending the first control signal to the dual-redundant DC motor.

10. The system according to claim 8, characterized in that The second motor driving circuit module is used for sending the second control signal to the dual-redundant DC motor.

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