The binary states, i.e., success or failed state assumptions used in conventional reliability are inappropriate for reliability analysis of complex industrial systems due to lack of sufficient probabilistic information. For large complex systems, the uncertainty of each individual parameter enhances the uncertainty of the system reliability. In this paper, the concept of fuzzy reliability...

—Advances in embedded system technology have enabled automotive manufacturers to design electronic systems that introduce new features to the vehicles, improve their performance and increase safety. Following the successful use of fly-by-wire systems in aircraft, the introduction of drive-by-wire is expected in an increasing number of new vehicles. The electronic components used in these system...

Reliability enhancement in software system is a crucial and challenging issue. Applying efficient fault-tolerant mechanism can fulfill the system reliability requirement. This paper proposes reliability models for hierarchical and hybrid fault-tolerant software systems considering failure dependencies or related faults in software components/versions. Our system models are based on the classica...

Reliability is one of the fundamental considerations in the design of industrial control equipment. The microprocessor-based Hybrid Duplex fault-tolerant System (HDS) proposed in this paper has high reliability to meet this demand although its hardware structure is simple. The hardware configuration of HDS and the fault tolerance of this system are described. The switching control strategies in...

fault tolerance is one of the important issues in industries, such as transportation, military, chemical and nuclear sectors. reliability and safety are two vital attributes of fault tolerant systems, and redundancy is a common way to improve these parameters. this article studies the impact of including cold standby spares in system architecture. to do this, it uses the markov model of the sys...

In terms of reliability, a unit, subsystem or system is considered dynamic if its failure probability is variable. From the system point of view, the reliability depends on the units’ dynamics, on the interdependencies arising among such units (load-sharing, standby redundancy, interferences, etc) and on their reliability relationships, that can also be variable (phased-mission systems). Such p...

Stimulated by the growing demand for improving the reliability and performance of systems, fault-tolerant control has been receiving significant attention since its goal is to detect the occurrence of faults and achieve satisfactory system performance in the presence of faults. To develop an intelligent fault-tolerant control system, we begin by constructing a design model of the system using a...

Stimulated by the growing demand for improving system performance and reliability, fault-tolerant system design has been receiving significant attention. This paper proposes a new fault-tolerant control methodology using adaptive estimation and control approaches based on the learning capabilities of neural networks or fuzzy systems. On-line approximation-based stable adaptive neural/fuzzy cont...

Stimulated by the growing demand for improving the reliability and performance of systems, fault tolerant control has been receiving signiicant attention since its goal is to detect the occurrence of faults and achieve satisfactory system performance in the presence of faults. To develop an intelligent fault tolerant control system, we begin by constructing a design model of the system using a ...

Embedded systems employed in critical applications demand high reliability and availability in addition to high performance. Hardware-software co-synthesis of an embedded system is the process of partitioning, mapping, and scheduling its specification into hardware and software modules to meet performance, cost, reliability, and availability goals. In this paper, we address the problem of hardw...