Electric unmanned aerial vehicle power system multifunctional testing stand

Abstract

The invention discloses an electric unmanned aerial vehicle power system multifunctional testing stand. The electric unmanned aerial vehicle power system multifunctional testing stand is multifunctional, is high in safety and reliability, is low in cost, and is convenient to use. The electric unmanned aerial vehicle power system multifunctional testing stand includes a testing stand frame assembly, a power supply assembly, a data measuring assembly, and a safety protection system assembly, wherein the data measuring assembly at least includes a torque measuring module, a tension/pressure measuring module, a non force cell sensor module, and a data acquisition and control system assembly; and the data acquisition and control system assembly is used for acquiring feedback signals of the datameasuring assembly, and transmitting the acquired feedback signals to a host computer in real time. The electric unmanned aerial vehicle power system multifunctional testing stand can realize groundstatic tension test and movable tension test of the power system, and the stand frame is provided with a ground working table and a vehicle running test general interface, so that the movable tensiontest function can successfully avoid the defects that a traditional ground static tension test has too big error and too high wind tunnel test cost.

Description

technical field [0001] The invention relates to the technical field of power system testing of light and small unmanned aerial vehicles, in particular to a multi-working-condition and multi-parameter test platform and test method for power systems such as brushless motors, engines, and propellers of unmanned aerial vehicles. Background technique [0002] Light and small UAVs are widely used in military and civilian applications due to their small size, light weight, flexible maneuverability, and low cost. The power unit used is a piston engine or a brushless electric motor. Among them, the power system is the heart of the UAV. During the overall design and use of the aircraft, a large number of tests and experiments on the power system are required to obtain the test parameters and characteristics of the power system, and to verify reliability and various performances. Therefore, the power system test bench is a relatively important test equipment. [0003] In recent years...

AI Technical Summary

Problems solved by technology

At home and abroad, there are some specialized enterprises that develop and produce unmanned aerial vehicles and aircraft model aircraft power system test benches, but their functions are relatively single, the technology is backward, there are too many restrictions on use, and the cost is high, resulting in the need for multiple tests in the design process of UAVs. The platform can only test the most basic parameters, which greatly increases the cost and reduces the efficiency

[0004] Chinese patent CN105628386A proposes an engine test bench system and test method. This invention solves the problem of piston engine performance detection and improves the reliability and automation of the test. However, it is not specifically for aviation piston engines or brushless motors. , the power output end cannot match the UAV power system, some designs are not targeted, the structure is complex, and the applicability in the field of UAVs is not high

[0005] Chinese patent CN202994470U proposes a power performance test system for unmanned aircraft. This invention is aimed at the comprehensive test of the output torque, speed, power, thrust, fuel consumption and other driving performance of the unmanned aerial vehicle under the flight condition of the engine. The general parameters of the engine have been measured, but the brushless motor power system cannot be tested, and the scope of application is small

However, there are the following disadvantages: too many types of power systems can be applied, resulting in too many redundant designs in a specific test, causing additional interference, and poor pertinence. Moreover, individual types of engines are not suitable for this measurement method Excessive pursuit of comprehensive functions will inevitably lead to reduced specificity, which will lead to unreasonable test design and additional errors; only ground static tension tests can be performed; some parameter measurement methods are not reasonable, for example, the torque measurement method can only measure static torque and cannot Measuring the dynamic torque that is more important to the overall design of the aircraft; the degree of integration of the measurement and data acquisition system is not high, and there is a lack of necessary instructions, and it has not achieved modularization in the true sense

Images