Delta Operator Based Fault Detection Filter Design for Uncertain Steer-by-Wire Systems with Time Delay

2018 ◽  
Author(s):  
Chao Huang ◽  
Fazel Naghdy ◽  
Haiping Du
Keyword(s):  
Time Delay ◽  
Fault Detection ◽  
Filter Design ◽  
Delta Operator ◽  
Fault Detection Filter ◽  
Steer By Wire ◽  
Detection Filter

Robust Fault Detection Filter Design With Applications to Steer-by-Wire Vehicles

2007 ◽  
Author(s):  
Christopher D. Gadda ◽  
Shad M. Laws ◽  
J. Christian Gerdes
Keyword(s):  
Fault Detection ◽  
Filter Design ◽  
Diagnostic System ◽  
Parametric Uncertainty ◽  
Fault Detection Filter ◽  
Robust Model ◽  
Steer By Wire ◽  
System Input ◽  
Noise Disturbances ◽  
Detection Filter

This paper presents a method for designing robust, model-based fault detection filters for linear systems with bounded parametric uncertainty. The approach maximizes the theoretical channel capacity of the system and diagnostic filter together, regarding the fault condition as an input to a hypothetical communication channel and the resulting residual as the output, with sensor noise, disturbances, and system input as sources of interference. This results in a robust residual that is both sensitive to faults and insensitive to noise and disturbances. The effectiveness of the technique is demonstrated in the design of a fault detection filter for use with a diagnostic system for a steer-by-wire vehicle.

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