Adaptive Fuzzy Sliding Mode Observer for Cylinder Mass Flow Estimation in SI Engines

Wang, Changhui; Liang, Mei; Li, Chun‐Na

doi:10.1109/access.2018.2840519

Cited by 5 publications

(5 citation statements)

References 25 publications

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“…The tray is provided with a discharging mechanism for releasing the fixing of the sorting slot to the suction head so that the suction head can fall freely from the sorting groove. A number of discharge suction head storage holes are arranged on the suction head storage box for storing the suction heads (Wang et al, 2018). 1.…”

Section: Mechanical Structure Of Automatic Packing Equipment For Pipe...mentioning

confidence: 99%

Design of Automatic Packing System for Pipette Suction Heads

Sun¹,

Yang²,

Zhai³

et al. 2022

Eng. Agríc.

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Among the shortcomings of the existing pipette cartoning technology, first, it needs a lot of manpower and time to complete by hand; second, it is based on a semi-automatic equipment for loading the suction heads, which cannot ensure that the suction head is upright (bottom tip down) or avoid the phenomenon of suction head overlapping. Based on this, an automatic system for packing pipette suction heads is proposed. Firstly, the research status of pipette cartoning is analyzed; secondly, the mechanical design of the automatic cartoning system for pipette suction heads is given; thirdly, the hardware structure diagram and software flow of the automatic cartoning system are given. Finally, the system is applied to a pipette suction head box in a school laboratory. After many times of practice, it is proved that the system can realize the automatic pipette suction head box, and has the advantages of stable performance, accurate positioning and intuitive display, which improves the efficiency of the pipette suction head box in the laboratory.

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Section: Mechanical Structure Of Automatic Packing Equipment For Pipe...mentioning

confidence: 99%

Design of Automatic Packing System for Pipette Suction Heads

Sun¹,

Yang²,

Zhai³

et al. 2022

Eng. Agríc.

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“…When a single-cylinder gasoline engine is equipped with a generator set, it is required to meet the instantaneous switching between no-load and full-load conditions and the maximum and minimum values of the speed change of the gasoline engine during the switching process are limited, while the adaptive expert PID adjustment cannot meet the requirements of this working condition. In order to adapt to this sudden load increase and sudden load decrease, this paper adopts MAP adjustment (Wang et al, 2018). Therefore, the self-adaptive expert PID algorithm is organically combined with the MAP chart in the program design and the two adjustment modes work cooperatively without interference from each other.…”

Section: Key Technical Points Of Electronically Controlled Governors mentioning

confidence: 99%

Design of Electronic Control Governor for a Single Cylinder Gasoline Engine Based on an Intelligent Sensing Algorithm

Sun¹,

Yang²,

Ma³

et al. 2020

Eng. Agríc.

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At present, most large machinery and vehicle engines are electronically controlled but their electronic control systems are too expensive to be popularised and applied in small gasoline engines with relatively low prices. Therefore, small gasoline engines still use mechanical speed regulators. Mechanical speed regulators not only have the defects of inertia lag, friction resistance, inherent speed regulation and the like, but also have the disadvantage that dynamic performance and steady performance cannot be combined, which is not suitable for the increasingly improved speed regulation performance of gasoline engines. This paper describes the design of an electronically controlled intelligent governor for small gasoline engines. Starting from a low cost, it adopts the idea of "replacing part of the hardware with an intelligent sensing algorithm" and proposes an intelligent sensing algorithm scheme. It combines the "coarse tuning" of MAP and the "fine tuning" of adaptive expert PID. The system is proved experimentally and it not only overcomes the inherent defects of a mechanical governor and realises programmable speed regulation, but it also obtains good dynamic and steady performance, improves the power output of the engine, relieves the trouble of engine travelling and improves the freedom of carburetor matching.

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“…so η = 0 is asymptotically stable. According to the system (24), η is much faster than s, then η = 0 → x =x,x = f (s) = 0 → s = 0, and the tracking error e decays exponentially. In practice, ε = 0 can't be achieved for the observer [30].…”

Section: Closed-loop Stability Analysismentioning

confidence: 99%

“…since A q is Hurwitz and is positive constant, the stability of the closed-loop can be analyzed the same as (24). Too small ε is avoided in practice since the estimator may become noise sensitive.…”

Section: B System With Uncertaintiesmentioning

confidence: 99%

“…Shi et al [21] provided an extendedstate-observer-based chattering free sliding mode controller for systems with matched and mismatched uncertainties and simulations showed the good performance of extended state observer in estimating the mismatched disturbance. Highgain sliding mode observer (SMO) and adaptive fuzzy SMO are used to estimate state and unknown parameters [22]- [24]. Experimental results demonstrate that the proposed observer has higher estimation precision than the traditional SMO.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

High-Gain Observer-Based Sliding Mode Force Control for the Single-Rod Electrohydraulic Servo Actuator

Liu

2019

IEEE Access

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A high-gain observer based sliding mode force control system for the single-rod servo actuator is presented in this paper. In order to track the desired force, full states for feedback are needed. Since only the output force is measured, a high-gain observer with easy implementation and calibration is designed for the estimation of the unavailable states. Then the sliding mode controller is proposed and a continuously varying function instead of the traditional sign function is used to constitute the switching term of the control input which takes the distance of the system states from the sliding surface into account. So the chattering phenomena are eliminated. The stability of the closed-loop force control system is analyzed by the singular perturbation method and simulations show the effectiveness of the proposed force control method for the single-rod electrohydraulic servo actuator. INDEX TERMS High-gain observer, sliding mode control, chattering-free, servo actuator, force control.

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Adaptive Fuzzy Sliding Mode Observer for Cylinder Mass Flow Estimation in SI Engines

Cited by 5 publications

References 25 publications

Design of Automatic Packing System for Pipette Suction Heads

Design of Automatic Packing System for Pipette Suction Heads

Design of Electronic Control Governor for a Single Cylinder Gasoline Engine Based on an Intelligent Sensing Algorithm

High-Gain Observer-Based Sliding Mode Force Control for the Single-Rod Electrohydraulic Servo Actuator

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