2021
DOI: 10.3390/app11167236
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Actuator-Integrated Fault Estimation and Fault Tolerant Control for Electric Power Steering System of Forklift

Abstract: For the problem of actuator-integrated fault estimation (FE) and fault tolerant control (FTC) for the electric power steering (EPS) system of a forklift, firstly, a dynamic model of a forklift EPS system with actuator faults was established; then, an integrated FE and FTC design was proposed. The nonlinear unknown input observer (NUIO) was proposed to estimate the system states and actuator faults, and an adaptive sliding mode FTC system was constructed based on it. The gain of the observer and controller is o… Show more

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Cited by 5 publications
(3 citation statements)
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“…The integration of the techniques of artificial intelligence such as neural networks is investigated using the examples of spacecrafts [13], distributed power generators [14] and transmission lines [15], industrial robots [16] and bearings [17]. Additionally, investigations of fault-tolerant control systems in certain application fields are currently expanded such as in the field of underwater vehicles [18], octorotor UAVs [19], regional aircrafts [20], chemical reactors [21], wind turbines [22], fault-tolerant permanent magnet motors [23] and the power steering of forklifts [24]. Furthermore, reviews in certain fields are published that supplement the reviews mentioned above; these reviews concern the fault diagnosis of machines with small and imbalanced data [25], fault prediction and location methods in electrical energy distribution networks [26], rotating machinery fault detection and diagnosis applying deep domain adaptation [27] as well as intelligent fault-diagnosis for high-speed trains [28].…”
Section: State Of the Art In Fault-tolerant Controlmentioning
confidence: 99%
“…The integration of the techniques of artificial intelligence such as neural networks is investigated using the examples of spacecrafts [13], distributed power generators [14] and transmission lines [15], industrial robots [16] and bearings [17]. Additionally, investigations of fault-tolerant control systems in certain application fields are currently expanded such as in the field of underwater vehicles [18], octorotor UAVs [19], regional aircrafts [20], chemical reactors [21], wind turbines [22], fault-tolerant permanent magnet motors [23] and the power steering of forklifts [24]. Furthermore, reviews in certain fields are published that supplement the reviews mentioned above; these reviews concern the fault diagnosis of machines with small and imbalanced data [25], fault prediction and location methods in electrical energy distribution networks [26], rotating machinery fault detection and diagnosis applying deep domain adaptation [27] as well as intelligent fault-diagnosis for high-speed trains [28].…”
Section: State Of the Art In Fault-tolerant Controlmentioning
confidence: 99%
“…In the past few decades, model-based FE and FTC have been extensively studied. 4,5 In real industry, actuator failures are more common than other types of system failures due to saturation, stuck, or failure. 6 In Reference 7, the distributed FE problem of a heterogeneous multi-agent system consisting of unmanned ground vehicles and unmanned aerial vehicles is studied in the presence of actuator faults, completely unknown nonlinearity and external interference.…”
Section: Introductionmentioning
confidence: 99%
“…Fault estimation (FE) and fault‐tolerant control (FTC) improve reliability and safety. In the past few decades, model‐based FE and FTC have been extensively studied 4,5 . In real industry, actuator failures are more common than other types of system failures due to saturation, stuck, or failure 6 .…”
Section: Introductionmentioning
confidence: 99%