Test system and method for simulating engine starting in high-altitude environment

Abstract

The invention provides a test system for simulating engine starting in a high-altitude environment. The test system comprises a low-temperature air supplying system, an exhaust system and a bypass pipeline, wherein the low-temperature air supplying system is used for forming a high altitude simulation low-temperature environment; the exhaust system is used for exhausting air to form a high altitude simulation low-pressure environment; the low-temperature air supplying system is connected to an air inlet pipe of an engine; the exhaust system is connected to an exhaust pipe of the engine; the bypass pipeline is connected between the air inlet pipe and the exhaust pipe of the engine; a valve is arranged in the bypass pipeline; the valve is closed along with the starting of the engine. Correspondingly, the invention further provides a test method for simulating engine starting in the high-altitude environment. By adopting the test method, a low-temperature low-pressure high-altitude environment can be simulated, so that a simulation test can be performed on the starting of the engine so that an engine starting situation is reduced through a most real environment.

Description

technical field [0001] The invention relates to the technical field of engine testing, in particular to a testing system and method for simulating engine starting in a high-altitude environment. Background technique [0002] With the rapid application and development of UAV technology, more and more fields have been applied to UAV products, such as search and rescue, broadcast, investigation and so on. During the flight of the drone, its environment is low temperature and low pressure. To maintain its working life, it is necessary to conduct simulation tests on the components of the drone in the early stage. Most of the existing tests are based on empirical calculations. Although the working conditions of components can be simulated through empirical formulas, there are still errors in their accuracy. Especially for the test of the engine starting process, since the engine is the core component of the UAV, if there is an error in the starting test, there will be hidden dang...

AI Technical Summary

Problems solved by technology

Most of the existing tests are based on empirical calculations. Although the working conditions of components can be simulated through empirical formulas, there are still errors in their accuracy.

Especially for the test of the engine starting process, since the engine is the core component of the UAV, if there is an error in the starting test, there will be hidden dangers for the later flight of the UAV

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