Name
Title | ||
|---|---|---|
Smart Actuator-Based Fault-Tolerant Control for Networked Safety-Critical Embedded Systems |
Abstract | ||
|---|---|---|
In this paper, a fault-tolerant control method is presented with an application to steer-by-wire (SBW) system. SBW is a network-based vehicle steering system in which the mechanical linkage and hydraulics are replaced by electrical motors and fieldbus networks. Since failure of a steering system may result in a catastrophic accident, SBW can be considered as a safety-critical embedded system for which very high level of dependability must be satisfied. This paper proposes an effective control strategy to tolerate faulty actuators. The proposed method has a simple structure to be implemented on low cost embedded processors. The reconfiguration strategy consists of two fold: i) a smart actuator of which embedded microprocessor provides the fast and accurate diagnostic information through a time-triggered fieldbus, and ii) an IMC-PID controller which is capable of tolerating the effect of faults based on the diagnostic information being sent from the smart actuator. Simulation results with a SBW model show that the proposed method can enhance the system dependability in the presence of faults without using any redundant actuators. |
Year | DOI | Venue |
|---|---|---|
2007 | 10.1007/978-3-540-72685-2_57 | ICESS |
Keywords | Field | DocType |
smart actuator-based fault-tolerant control,sbw model show,smart actuator,system dependability,networked safety-critical,fault-tolerant control method,steering system,network-based vehicle steering system,embedded microprocessor,embedded processor,safety-critical embedded system,electric motor,embedded system,satisfiability,pid controller | Control theory,Dependability,Computer science,Microprocessor,Real-time computing,Fault tolerance,Electric motor,Control reconfiguration,Actuator,Fieldbus,Embedded system | Conference |
Volume | ISSN | Citations |
4523 | 0302-9743 | 0 |
PageRank | References | Authors |
0.34 | 3 | 5 |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Inseok Yang | 1 | 3 | 2.04 |
| Donggil Kim | 2 | 3 | 1.47 |
| Kyungmin Kang | 3 | 51 | 7.13 |
| Dongik Lee | 4 | 77 | 14.46 |
| Kyungsik Yoon | 5 | 0 | 0.34 |