Semi-physical real-time simulation system for electro-hydrostatic actuator
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A semi-physical simulation, electro-hydrostatic technology, applied in the field of servo actuators, can solve the problems of cumbersome development and testing process, long design cycle of electro-hydrostatic actuators, accurate modeling and simulation, etc.
Active Publication Date: 2021-07-30
BEIHANG UNIV
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[0008]
The purpose of the present invention is to provide a semi-physical real-time simulation system for electric hydrostatic actuators, which is used for the development and test verification of electric hydrostatic actuators. The accuracy of modeling and simulation, and the cumbersome development and testing process
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Embodiment 1
[0078] The semi-physical real-time simulation system of the electric hydrostatic actuator provided by the embodiment of the present invention is used for the RCP verification of the electric hydrostatic actuator, and the hardware parts involved refer to Figure 4 As shown, it includes: a host computer 100, a real-time target computer 200, a driver 2 and an electric hydrostatic actuator body 300;
[0079] The upper computer 100 communicates with the real-time target machine 200; the real-time target machine 200 is respectively connected to the driver 2 and the electrohydrostatic actuator body 300; the driver 2 is connected to the electrohydrostatic actuator body 300; The device body 300 includes components such as a servo motor, a hydraulic pump, a hydraulic valve, an actuator, a sensor, and an oil tank.
[0080] The upper computer realizes the control algorithm through the establishment of a graphical modeling interface, which can be downloaded by the real-time target computer...
Embodiment 2
[0104] The electrohydrostatic actuator semi-physical real-time simulation system provided by the embodiment of the present invention is used for the HIL verification test, and the hardware parts involved refer to Figure 7 As shown, it includes: an interconnected upper computer 100, a real-time target computer 200 and a controller 1;
[0105] The upper computer 100 communicates with the real-time target computer 200. Here, the upper computer 100 is used to build a model for simulating the electrohydrostatic actuator body, driver and load conditions. The real-time target machine 200 is used to run and download the model for simulating the electrohydrostatic actuator body, driver and load conditions, and realize real-time interaction with the controller 1 . Among them, the simulated electrohydrostatic actuator body also includes components such as servo motors, hydraulic pumps, hydraulic valves, actuators, sensors, and fuel tanks.
[0106] refer to Figure 5 As shown, the real...
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Abstract
The invention discloses a semi-physical real-time simulation system for an electro-hydrostatic actuator. The semi-physical real-time simulation system comprises an upper computer and a real-time target machine which is in communication connection with the upper computer, the upper computer comprises a simulation monitoring and debugging module, a model building and testing module, a real-time interface driving module library, an FPGA model programming tool box and a code generating and compiling module; the real-time target machine comprises a downloading module used for downloading the simulation model generated by the code generating and compiling module; an operation module used for operating the simulation model and performing a simulation test; and a feedback module used for feeding back real-time data of the simulation test to the upper computer for display and model optimization. According to the simulation system, a control algorithm can be quickly verified under the condition that a controller is not designed, the performance of the controller can be verified when an electro-hydrostatic actuator body is not machined, the development process of the electro-hydrostatic actuator is shortened, the test verification efficiency is improved, the software environment is powerful in function and convenient to use, and multi-disciplinary cross-energy domain verification requirements can be met.
Description
technical field [0001] The invention relates to the technical field of servo actuators, in particular to a semi-physical real-time simulation system for electric hydrostatic actuators. Background technique [0002] Electro-hydrostatic actuator (Electro-hydrostatic Actuator, EHA) is the main actuation system of future aircraft, and its design and optimization are of great significance. The electric hydrostatic actuator can improve the survivability of the aircraft, improve the reliability and maintainability of the aircraft, and at the same time reduce the maintenance cost. Therefore, the use of electric hydrostatic actuators can not only greatly improve the performance of the aircraft, but also save maintenance costs. With the development and maturity of technology, for industrial and civil fields such as automobiles, construction machinery, robots, etc., electric hydrostatic actuators also have broad application prospects as driving actuators. [0003] Electric hydrostati...
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