Fault Diagnosis by Bayesian Network in System of Poor Braking Efficiency

Uncertainty and complexity exist between various fault symptoms and various fault causes in fault diagnosis for poor braking efficiency in hydraulic braking system. Fault diagnosis for poor efficiency in hydraulic braking system as the object of study, the paper develops a solution for fault diagnosis to hydraulic braking system by means of Bayesian network, at the foundation of failure pattern and cause analysis of hydraulic braking system. Having studied the structure of Bayesian network according to rules provided by experts, the paper establishes a fault diagnosis model in poor braking system on the basis of Bayesian network. Test and evaluation conclusions indicate that Bayesian network has solved the uncertainty in fault diagnosis and improved diagnostic accuracy in the fault diagnosis system of hydraulic braking system.