Four-coincidence flexibility test device for small-power power pack of unmanned vehicle

Abstract

According to the unmanned vehicle low-power power pack four-coincidence flexible test device provided by the invention, through the integrated design of the system, the low-pressure cabin, the low-temperature cabin and the vibration table can be safely and reliably matched to work, and the test accuracy and the working condition simulation precision are improved; the six-degree-of-freedom vibration table is used for simulating the vibration condition of the power assembly under the actual driving working condition of the vehicle, and various reliability problems can be tested; the low-temperature cabin is adopted, so that the extreme high-low temperature environment can be simulated, and the power performance of the power pack in the high-low temperature environment and the reliability of parts under the comprehensive influence of temperature and vibration can be assessed; a low-pressure cabin is adopted, a high-altitude environment can be simulated, and the problems that engine power is reduced, an air supply system is not matched with engine performance and the heat dissipation capacity of a cooling system is reduced are tested; the device provided by the invention is suitable for performance bench test of unmanned vehicle power packs of any size, and realizes accurate simulation of various use condition environments of a real vehicle.

Description

technical field [0001] The invention belongs to the technical field of vehicle engineering, and in particular relates to a quadruple overlapping flexible test device of a small-power power pack for an unmanned vehicle. Background technique [0002] In the future, unmanned vehicles will become an important part of the information-based unmanned equipment system. Unmanned vehicles have good flexibility, mobility and portability. Compared with conventional vehicles, they have better environmental adaptability and mobility. It means that it will replace more people to perform tasks in harsh environments and complex terrain conditions. In order to ensure the working performance in mission scenarios, the unmanned vehicle power plant needs to be able to ensure normal operation in extreme high and low temperature environments, high altitude environments, and complex road vibration environments, and meet various performance indicators of the system. [0003] The unmanned vehicle pow...

AI Technical Summary

Problems solved by technology

[0004] At present, the power generation performance test of the low-power power pack of unmanned vehicles, the vibration environment simulation test, the high and low temperature environment simulation test, and the single environment test under high altitude conditions are already very mature, but the coupling test capability under multiple environmental conditions is lacking, especially four The coupling test capability under these conditions has led to the fact that the power pack can only complete the test under normal temperature and pressure during the vibration test and power generation performance test, and the reliability under extreme temperature and high altitude environments still depends on the actual vehicle test verification. Seriously affected the efficiency and progress of research and development of unmanned vehicles

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