Two-redundancy steering engine control system based on CAN bus

A CAN bus and control system technology, applied in the mechanical field, can solve problems such as force disputes, and achieve the effects of solving force disputes, high reliability and real-time performance, and improved reliability

Inactive Publication Date: 2017-12-29
李福霞
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Problems solved by technology

[0003] The present invention proposes a dual-redundancy steering gear control system based on CAN bus, which adopts a differen

Method used

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  • Two-redundancy steering engine control system based on CAN bus
  • Two-redundancy steering engine control system based on CAN bus
  • Two-redundancy steering engine control system based on CAN bus

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Embodiment Construction

[0019] The present invention will be further described below in conjunction with drawings and embodiments.

[0020] Such as figure 1 , the upper computer of the control system issues control commands to channel 1 and channel 2 through CAN communication, and information can also be exchanged between channel 1 and channel 2 through CAN communication. Channel 1 and channel 2 connect motor 1 and motor The mechanical motion of 2 is synthesized into the motion of the output shaft, and then the rotary motion is converted into linear motion through the linear actuator, thereby driving the rudder surface to rotate. When the loads of the two channels are unbalanced (that is, the speeds are inconsistent), the differential epicyclic gear train can effectively solve the problem of force disputes, thereby reducing the difficulty of the control system design. Each channel in the steering gear control system is composed of motor, control drive unit and power supply, etc. If any part in one c...

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Abstract

A dual-redundancy steering gear control system based on CAN bus adopts a differential epicyclic gear train motion synthesis method, which effectively solves the problem of force disputes caused by unbalanced loads. The reliability of the steering gear control system is improved. The electrical parts of the two redundancy channels are identical, and they can independently complete the control tasks, achieving complete electrical redundancy. If any component in one of the channels fails, the steering gear system can still operate normally. The CAN communication method with high reliability and real-time performance is adopted, which makes the switching between the two redundancy levels fast and accurate. The dual redundancy control system has precise control and reliable redundancy.

Description

Technical field [0001] The invention relates to a dual-redundancy servo control system based on CAN bus, which is suitable for the mechanical field. Background technique [0002] As the key executive mechanism on the aircraft, the steering gear will threaten the flight safety of the aircraft once it fails. The performance and reliability of the steering gear directly affect the safety and reliability of the aircraft. Most of the more advanced aircraft use electric steering gears driven by servo motors. To improve the reliability of the steering gear, only by adopting the method of improving the performance and reliability of each control element and motor, at the level of technological development at that time, the effect was not obvious, but the cost increased exponentially. Using redundancy technology, components with relatively low cost and reliability can be used to form a system with high reliability. Therefore, the application of redundancy technology in the aircraft...

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Application Information

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IPC IPC(8): G05B9/03
CPCG05B9/03
Inventor 李福霞
Owner 李福霞
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