Fault diagnosis method for power compartment of armored car of related vector machine based on optimization

Abstract

The invention provides a fault diagnosis method for a power compartment of an armored car of a related vector machine based on optimization, and the method comprises the steps: 1, collecting the fault sample data of the power compartment through a sensor, and obtaining sample data S={(xi, yi)}, wherein xi is an i-th n-dimensional attribute sample, i is within the range [1, N], N is the total number of samples, and yi is a fault type corresponding to the i-th sample; 2, carrying out the normalization preprocessing of the sample data S, and obtaining a training set and a test set; 3, selecting an optimal RVM core parameter sigma through a cuckoo search algorithm based on Gaussian disturbance; 4, inputting the data of the training set into an RVM model, carrying out training, and constructing the related vector machine; 5, carrying out the classification of the data of the test set through employing the constructed RVM (related vector machine), and obtaining a corresponding fault state of the power compartment. The method can improve the classification precision while shortening the training time, is strong in generalization capability, can accurately detect different faults of the power compartment, and well solves a problem of fault diagnosis of an integrated machine of the power compartment.

Description

technical field [0001] The invention relates to the technical field of armored vehicle power cabin measurement, in particular to an optimization-based correlation vector machine armored vehicle power cabin fault diagnosis method. Background technique [0002] The power cabin is an integrated machine including an engine and a gearbox. The engine converts chemical energy into mechanical energy, and the gearbox and the engine are coupled to achieve the purpose of changing speed and torque. They are one of the core components of armored vehicle power. The normal operation of the power cabin will seriously affect the performance of the armored vehicle. Therefore, it is necessary to diagnose the faults of the power cabin before the vehicle is assembled. These diagnostic and evaluation experiments are all completed on the test bench. [0003] In the prior art, the power cabin is disassembled, the engine and the gearbox are taken out, and fault diagnosis is carried out for each part...

AI Technical Summary

Problems solved by technology

However, the power cabin as a whole has relatively few measurable signals that can be used for diagnosis, and there are many types of faults that need to be diagnosed, and there are not many sample data, which brings difficulties to the fault diagnosis of the power cabin. Troubleshooting method

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