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
Real-Time Error Detection in Nonlinear Control Systems Using Machine Learning Assisted State-Space Encoding
TL;DR: Hardware results from error injection experiments in an ARM core representation on an FPGA and artificial sensor degradations on a self-balancing robot prove the practical feasibility of implementation.
Patent
Electromechanical brake system with a failsafe energy supply and method for failsafe energy supply in an electromechanical brake system for vehicles
TL;DR: In this paper, an electromechanical brake system and an associated method with a failsafe energy supply, comprising a first to fourth brake module (BM1-BM4), each associated with a wheel of a vehicle, having at least one control unit (SG1-SG4) and brake actuation unit (BAE1-BAE4) each, was presented.
Proceedings ArticleDOI
Quantifying the Resiliency of Fail-Operational Real-Time Networked Control Systems
TL;DR: An analysis to quantify the resiliency of fail-operational networked control systems against EMI-induced memory corruption, host crashes, and retransmission delays and demonstrates the utility of the analysis in identifying non-trivial and non-obvious reliability tradeoffs.
Proceedings ArticleDOI
Practical fault-tolerant control to protect steer-by-wire systems against sensor faults
Akira Ito,Yoshikazu Hayakawa +1 more
TL;DR: A novel practical fault-tolerant control that protects steer-by-wire systems against sensor faults and aims to reduce sensor redundancy while guaranteeing safety is presented.
Dissertation
Design and Analysis of Electric Powertrains for Offshore Drilling Applications
TL;DR: In this article, the authors propose a method to solve the problem of "uniformity" and "uncertainty" in the context of health care.xix, e.g.,
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
VDC, The Vehicle Dynamics Control System of Bosch
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.