Use method of parallel test bed air intake system pressure regulating valves

Abstract

The invention discloses a use method of parallel test bed air intake system pressure regulating valves. When the parallel test bed air intake system pressure regulating valves are used, any one of the parallel test bed air intake system pressure regulating valves can be used separately, or the parallel test bed air intake system pressure regulating valves can be used in combination; when the parallel test bed air intake system pressure regulating valves are used in combination, the opening degree of pressure regulating valves with a large pressure regulating range in the parallel test bed air intake system pressure regulating valves is fixed as 50% or 100%, and then, the control amount of parameters is obtained according to a predictive control method; and the opening degree of pressure regulating valves with a small pressure regulating range is controlled through a control system. Compared with the prior art, the use method of the parallel test bed air intake system pressure regulating valves provided by the invention can make a user master the performance of a test bed on the whole, reduce test cost and improve test efficiency.

Description

technical field [0001] The invention relates to a method for using a pressure regulating valve of an air intake system of a parallel test bench. Background technique [0002] At present, during the engine test, a set of intake air parameters at the state point are required, including intake air total pressure, intake air flow rate, intake air oxygen composition, intake air total temperature, and engine fuel supply volume, and at the same time reach the set value and stabilize After that, record its performance and parameters or assess its performance. At present, the air intake parameters are usually adjusted to reach the set value by adjusting the relevant valves. When the air intake state point flow parameter range is wide, it is necessary to use parallel pressure adjustment valves to realize the pressure adjustment of the intake system. However, at present There is no mature method of using the pressure regulating valve of the air intake system of the test bench in paral...

AI Technical Summary

Problems solved by technology

At present, the air intake parameters are usually adjusted to reach the set value by adjusting the relevant valves. When the air intake state point flow parameter range is wide, it is necessary to use parallel pressure adjustment valves to realize the pressure adjustment of the intake system. However, at present There is no mature method of using the pressure regulating valve of the air intake system of the test bench in parallel, which increases the simulation time and increases the test cost

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