Journal ArticleDOI
Fault-tolerant drive-by-wire systems
TLDR
In this paper, a review of electronic driver assisting systems such as ABS, traction control, electronic stability control, and brake assistant is presented, along with fault-detection methods for use in low-cost components.Abstract:
The article begins with a review of electronic driver assisting systems such as ABS, traction control, electronic stability control, and brake assistant. We then review drive-by-wire systems with and without mechanical backup. Drive-by-wire systems consist of an operating unit with an electrical output, haptic feedback to the driver, bus systems, microcomputers, power electronics, and electrical actuators. For their design safety, integrity methods such as reliability, fault tree and hazard analysis, and risk classification are required. Different fault-tolerance principles with various forms of redundancy are considered, resulting in fail-operational, fail-silent, and fail-safe systems. Fault-detection methods are discussed for use in low-cost components, followed by a review of principles for fault-tolerant design of sensors, actuators, and communication. We evaluate these methods and principles and show how they can be applied to low-cost automotive components and drive-by-wire systems. A brake-by-wire system with electronic pedal and electric brakes is then considered in more detail, showing the design of the components and the overall architecture. Finally, we present conclusions and an outlook for further development of drive-by-wire systems.read more
Citations
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Journal ArticleDOI
Active Fault Tolerant Control with self-enrichment capability for gas turbine engines
TL;DR: In this article, an active fault tolerant control (AFTC) system with self-enrichment capability is proposed to deal with both the anticipated and unanticipated gas-path performance deteriorations in the industrial gas turbine engines.
Proceedings ArticleDOI
Early safety evaluation of design decisions in E/E architecture according to ISO 26262
Vladimir Rupanov,Christian Buckl,Ludger Fiege,Michael Armbruster,Alois Knoll,Gernot Spiegelberg +5 more
TL;DR: This paper presents an iterative architecture design and refinement process that is centered around ISO 26262 requirements and proposes a domain-specific modeling scheme and component repositories to build up a bottom-up analysis framework that allows early quantitative safety evaluation.
Proceedings ArticleDOI
Efficient Computation of Invariably Safe States for Motion Planning of Self-Driving Vehicles
Christian Pek,Matthias Althoff +1 more
TL;DR: Always safe sets are introduced, regions that allow vehicles to remain safe for an infinite time horizon and can be used to determine the existence of feasible evasive maneuvers and the criticality of scenarios by computing the time-to-react metric.
Journal ArticleDOI
Failure Detection Framework for Stochastic Discrete Event Systems With Guaranteed Error Bounds
Jun Chen,Ratnesh Kumar +1 more
TL;DR: This paper investigates the online fault detection for stochastic discrete-event systems (DESs) under partial observability of events and introduces the notions of their missed detections (MDs) and false alarms (FAs).
Proceedings ArticleDOI
THD in Cascade Multilevel Inverter Symmetric and Asymmetric
Olga Lidia Jimenez,Rodolfo Amalio Vargas,Jesus Aguayo,Jaime Eugenio Arau,Gerardo Vela,A. Claudio +5 more
TL;DR: This work presents the analysis of the output voltage total harmonic distortion (THD) and shows the results in simulation of cascaded multilevel inverters symmetrical and asymmetrical.
References
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Journal ArticleDOI
Fault-Tolerant Control: The 1997 Situation
TL;DR: The state of the art is outlined in a field which remains largely a theoretical topic with most application studies based upon aerospace systems and a basic literature review covering most areas of fault-tolerant control is provided.
Proceedings ArticleDOI
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Journal ArticleDOI
Fault-tolerant control systems — A holistic view
TL;DR: Fault-tolerant control is used in systems that need to be able to detect faults and prevent simple faults related to control loops from developing into production stoppages or failures at a plant level as discussed by the authors.
Journal ArticleDOI
The self-validating sensor: rationale, definitions and examples
Manus Henry,David Clarke +1 more
TL;DR: In this article, a self-validating sensor model is proposed which performs self-diagnostics and generates a variety of data types, including the on-line uncertainty of each measurement.
Journal ArticleDOI
Autonomous control reconfiguration
TL;DR: In this article, two specific approaches are presented for autonomous control reconfiguration, particularly as it relates to fault accommodation and learning systems, to illustrate the types of difficulties encountered and to serve as a focus.