Debugging Method for Adjusting Intake State Parameters of Test Bench Using Predictive Control Method

Abstract

The invention discloses a debugging method for regulating test bed air intake state parameters through a prediction control method. The debugging types include no-load debugging and on-load debugging. The on-load debugging comprises the following steps that an air intake pressure regulating valve, a heater fuel ratio regulating valve, an engine fuel ratio throttle valve and a liquid oxygen flow regulating valve are debugged in turn according to the control quantity of single parameters obtained through the prediction control method. Compared with methods in the prior art, the overall performance of a test bed can be mastered, test cost can be reduced and test efficiency can be enhanced by the debugging method for regulating the test bed air intake state parameters through the prediction control method.

Description

technical field [0001] The invention relates to a debugging method for adjusting air intake state parameters of a test bench by adopting a predictive control method. 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. However, before the engine test, it is necessary to debug the test bench to determine whether the performance of the test bench can meet the test requirements of the engine. In the test bench debugging, the debugging of the intake system is an important part. At present, there is no mature debugging method for adjusting the air intake state parameters of the test bench, which leads to the inability to gras...

AI Technical Summary

Problems solved by technology

However, before the engine test, it is necessary to debug the test bench to determine whether the performance of the test bench can meet the test requirements of the engine. In the test bench debugging, the debugging of the intake system is an important part. At present, there is no mature debugging method for adjusting the air intake state parameters of the test bench, which leads to the inability to grasp the performance of the test bench as a whole, thus increasing the simulation time and increasing the test cost

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