Intelligent Fault Diagnosis of Steer-By-Wire Automobile

Fault-tolerant automobile steering based on diversity of steer-by-wire, braking and acceleration

Steer-by-wire (SBW) systems, which have no mechanical linkage between the steering wheel and front wheels, are expected to improve vehicle safety through better steering capability. SBW system failures, however, can cause hazardous driving situations. This paper introduces fault-tolerant architecture based on diversified steering mechanisms consisting of SBW backed up with steering by braking a...

Time-constrained Fault Tolerant X-by-wire Systems

This paper presents a software-based approach to the problem of distributed actuator failure diagnosis under resource and deadline constraints in fly-by-wire systems using comparison of actuator behaviour and corresponding mathematical model. (2k+1) replicated control and diagnosis tasks are executed to tolerate k-faults in the control and diagnosis functions. The proposed method has been evalu...

Sliding Mode Observer Based Predictive Fault Diagnosis of a Steer-By-Wire System

This paper presents a nonlinear observer and prediction based analytical redundancy for a SteerBy-Wire (SBW) system. A Sliding Mode Observer was designed to estimate the vehicle steering angle by using the combined linear vehicle model, SBW system, and the yaw rate feedback. The estimated steering angle along with the current input was used to predict the steering angle at various prediction ho...

Incorporating a Model of Vehicle Dynamics in a Diagnostic System for Steer-by-Wire Vehicles

This paper examines the benefits of incorporating vehicle dynamics modeling into the design of a diagnostic system for a steer-by-wire vehicle. The use of a model of vehicle dynamics improves the speed and accuracy of the diagnoses, by eliminating a significant source of disturbance input to the steer-by-wire system model. A method for reducing the effects of modeling uncertainty on diagnostic ...

Deliverable D23.2 Version 1.0 1 Steer-by-wire for Challenge 4.1, Electric Steering for 5.1 Highly Automated Vehicles for Intelligent Transport 7th Framework Programme the Future of Driving. Deliverable D23.2 Steer-by-wire for Challenge 4.1, Electric Steering for 5.1