Abstract
The development trend of the aero-engine control system is the distributed control system (DCS), and the communication among devices is the key point and difficult point of DCS. In this article, the communication interface of CAN (Controller Area Network) bus is designed, the CAN communication technology among nodes is studied, the semi-physical platform of DCS is established, and the semi-physical simulation is implemented by combining with the engine model, and the experiment result shows that the control system simulation platform can completely satisfy the requirements of aero-engine DCS.
Highlights
IntroductionCAN is a kind of multi-host area network which was proposed by BOSCH Company for the application of modern motor, and because of its high performance, high reliability, and real-time character, it has been widely applied in many departments such as industrial automation, multi-control equipment, vehicle, medical instruments, building, and environment control
In the design of the aero-engine distributed control system (DCS), the semi-physical simulation platform of engine DCS is constructed on the system architecture, and the communication among various functional nodes is realized by the CAN bus, combining with requirements of the DCS simulation of aero-engine, and the semi-physical simulation of the engine model is realized and the result of the communication experiment shows that the designed communication scheme can make the data to be transmitted with high speed and accuracy among nodes through the CAN bus, which can achieve the control requirements of the control system
The development board ICTECK-F2812 based on TMS320F2812 chip is adopted to simulate various functional devices, and two industrial control computers are used to simulate the engine model and FADEC, and the communication among devices is realized by the CAN bus
Summary
CAN is a kind of multi-host area network which was proposed by BOSCH Company for the application of modern motor, and because of its high performance, high reliability, and real-time character, it has been widely applied in many departments such as industrial automation, multi-control equipment, vehicle, medical instruments, building, and environment control. The research about the DCS of aero-engine of China is still in the start stage, and the communication of the data bus of distributed system has not been solved essentially, so it is very difficult to construct the DCS of aero-engine, but the CAN bus can provide good solution for the design of the distributed system. In the design of the aero-engine DCS, the semi-physical simulation platform of engine DCS is constructed on the system architecture, and the communication among various functional nodes is realized by the CAN bus, combining with requirements of the DCS simulation of aero-engine, and the semi-physical simulation of the engine model is realized and the result of the communication experiment shows that the designed communication scheme can make the data to be transmitted with high speed and accuracy among nodes through the CAN bus, which can achieve the control requirements of the control system
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