The Experts below are selected from a list of 297 Experts worldwide ranked by ideXlab platform

Reinaldo Martinez Palhares - One of the best experts on this subject based on the ideXlab platform.

  • periodic takagi sugeno observers for Individual Cylinder spark imbalance in idle speed control context
    International Conference on Informatics in Control Automation and Robotics, 2015
    Co-Authors: Thomas Laurai, Jimmy Laube, Reinaldo Martinez Palhares
    Abstract:

    This paper aims to present a systematic methodology for designing periodic observers for cyclic nonlinear systems represented by Takagi-Sugeno models. An application to idle speed control of a spark-ignition engine will be proposed. Thanks to the estimated Individual Cylinder values, we can detect an imbalance of each Cylinder (unbalanced Cylinder). Based on a dynamic hybrid model, some simulation results will prove the efficiency of our method.

  • ICINCO (1) - Periodic Takagi-Sugeno observers for Individual Cylinder spark imbalance in idle speed control context
    Proceedings of the 12th International Conference on Informatics in Control Automation and Robotics, 2015
    Co-Authors: Thomas Laurain, Jimmy Lauber, Reinaldo Martinez Palhares
    Abstract:

    This paper aims to present a systematic methodology for designing periodic observers for cyclic nonlinear systems represented by Takagi-Sugeno models. An application to idle speed control of a spark-ignition engine will be proposed. Thanks to the estimated Individual Cylinder values, we can detect an imbalance of each Cylinder (unbalanced Cylinder). Based on a dynamic hybrid model, some simulation results will prove the efficiency of our method.

  • observer design to control Individual Cylinder spark advance for idle speed management of a si engine
    Conference on Industrial Electronics and Applications, 2015
    Co-Authors: Thomas Laurai, Jimmy Laube, Reinaldo Martinez Palhares
    Abstract:

    This paper aims to present an original methodology to design an observer that can be used in idle speed control using a global command for the throttle and an Individual command for the spark timing. To develop an efficient control, we need previously to estimate unmeasured parameters such as the torque generated by each Cylinder. Two observers are proposed: the methodology for the first one is based on a discrete periodic Takagi-Sugeno approach, and the second one on an unknown input observer. Finally, some simulation results showing the performance of the developed methodology are provided. The model used for our simulation is based on a dynamic hybrid one.

Thomas Laurai - One of the best experts on this subject based on the ideXlab platform.

  • periodic takagi sugeno observers for Individual Cylinder spark imbalance in idle speed control context
    International Conference on Informatics in Control Automation and Robotics, 2015
    Co-Authors: Thomas Laurai, Jimmy Laube, Reinaldo Martinez Palhares
    Abstract:

    This paper aims to present a systematic methodology for designing periodic observers for cyclic nonlinear systems represented by Takagi-Sugeno models. An application to idle speed control of a spark-ignition engine will be proposed. Thanks to the estimated Individual Cylinder values, we can detect an imbalance of each Cylinder (unbalanced Cylinder). Based on a dynamic hybrid model, some simulation results will prove the efficiency of our method.

  • observer design to control Individual Cylinder spark advance for idle speed management of a si engine
    Conference on Industrial Electronics and Applications, 2015
    Co-Authors: Thomas Laurai, Jimmy Laube, Reinaldo Martinez Palhares
    Abstract:

    This paper aims to present an original methodology to design an observer that can be used in idle speed control using a global command for the throttle and an Individual command for the spark timing. To develop an efficient control, we need previously to estimate unmeasured parameters such as the torque generated by each Cylinder. Two observers are proposed: the methodology for the first one is based on a discrete periodic Takagi-Sugeno approach, and the second one on an unknown input observer. Finally, some simulation results showing the performance of the developed methodology are provided. The model used for our simulation is based on a dynamic hybrid one.

George T C Chiu - One of the best experts on this subject based on the ideXlab platform.

  • fuzzy controller design for synchronous motion in a dual Cylinder electro hydraulic system
    Control Engineering Practice, 2008
    Co-Authors: Chengyi Chen, Chicheng Cheng, George T C Chiu
    Abstract:

    Abstract In this paper, an integrated fuzzy controller is proposed to achieve a synchronous positioning objective for a dual-Cylinder electro-hydraulic lifting system with unbalanced loadings, system uncertainties, and disturbances. The control system consists of one-fuzzy coordination controller for both Cylinders and an Individual Cylinder controller, comprised of a feedforward controller, and a fuzzy tracking controller, for each of the hydraulic Cylinders. In the integrated fuzzy controller design, the fuzzy coordination controller is responsible for dispatching motion synchronization commands to the Individual Cylinder controllers. Each Cylinder controller then adaptively enforces the position tracking to its controlled actuator. The experimental results show that the proposed integrated fuzzy controller design can effectively achieve the objective of position synchronization in the dual-Cylinder electro-hydraulic system, with maximum synchronization error within ±4 mm.

  • Fuzzy controller design for synchronous motion in a dual-Cylinder electro-hydraulic system
    Control Engineering Practice, 2008
    Co-Authors: Chengyi Chen, Chicheng Cheng, Li-qiang Liu, George T C Chiu
    Abstract:

    Abstract In this paper, an integrated fuzzy controller is proposed to achieve a synchronous positioning objective for a dual-Cylinder electro-hydraulic lifting system with unbalanced loadings, system uncertainties, and disturbances. The control system consists of one-fuzzy coordination controller for both Cylinders and an Individual Cylinder controller, comprised of a feedforward controller, and a fuzzy tracking controller, for each of the hydraulic Cylinders. In the integrated fuzzy controller design, the fuzzy coordination controller is responsible for dispatching motion synchronization commands to the Individual Cylinder controllers. Each Cylinder controller then adaptively enforces the position tracking to its controlled actuator. The experimental results show that the proposed integrated fuzzy controller design can effectively achieve the objective of position synchronization in the dual-Cylinder electro-hydraulic system, with maximum synchronization error within ±4 mm.

Shozo Yoshida - One of the best experts on this subject based on the ideXlab platform.

  • Individual A/F Estimation and Control With the Fuel–Gas Ratio for MultiCylinder IC Engines
    IEEE Transactions on Vehicular Technology, 2009
    Co-Authors: Kenji Suzuki, Tielong Shen, Junichi Kako, Shozo Yoshida
    Abstract:

    In internal combustion engines with multiCylinders, balancing the air-fuel ratio (A/F) for Individual Cylinders is an important issue for providing high-quality torque generation and reducing emissions. This paper addresses the Individual A/F control problem for a six-Cylinder engine with a single sensor. First, a modeling method to estimate the Individual fuel-gas ratio, which immediately provides the A/F, is proposed, and using the estimation model, an adaptive generalized predictive control approach to balancing the Individual Cylinder characteristics is presented, which targets the static engine-operation mode. The effectiveness of the presented model is validated based on the experimental results, and a comparison with existing models is given based on the experiments. Finally, control performance with the proposed Individual A/F control approach is demonstrated with the experiments conducted on a six-Cylinder engine test bench.

  • Modeling and Control of Individual Cylinder Air-Fuel Ratio in Multi-Cylinder Engine with Single Sensor
    Transactions of the Japan Society of Mechanical Engineers Series C, 2008
    Co-Authors: Kenji Suzuki, Tielong Shen, Junichi Kako, Shozo Yoshida
    Abstract:

    In the reciprocating engine with multi-Cylinders, estimation of Cylinder imbalance characteristics is an important issue for online balancing control in order to obtain high quality torque generation and reduce emission. This paper addresses the Individual Cylinder A/F estimation with single sensor and control problem. First, a simple model is proposed that provides an estimation of the Individual Cylinder A/F with multiple sampling data of the single sensor during a cycle. Then, using the model-based estimation, a feedback control approach is shown that is cycle-based PI regulation with the fuel injection as control input. Finally, experimental results carried out on an engine testbench are demonstrated to validate the estimation and the control effectiveness.

Tielong Shen - One of the best experts on this subject based on the ideXlab platform.

  • CASE - Modeling and experimental validation of air-fuel ratio under Individual Cylinder fuel injection for port-injection engines
    2012 IEEE International Conference on Automation Science and Engineering (CASE), 2012
    Co-Authors: Tielong Shen
    Abstract:

    In internal combustion engines, air-fuel ratio is an important index. This paper aims to present a modeling approach for air-fuel ratio following the physical process in multi-Cylinder port-injection engines. A linear periodic time-varying model is proposed with single input and single output. The model input is the fuel-injection command which is for an Individual Cylinder at its corresponding bottom dead center (BDC), and the model output is the sensed fuel-air ratio in the exhaust manifold. Lastly, the effectiveness of the presented model is validated by experiments. Experimental results show that the model output is close to the sensed fuel-air ratio.

  • Modeling of Individual Cylinder air-fuel ratio for IC engines with multi-Cylinders
    Proceedings of the 30th Chinese Control Conference, 2011
    Co-Authors: Tielong Shen, Kota Sata, Kenji Suzuki
    Abstract:

    In internal-combustion engines with multi Cylinders, fuel is injected into Cylinders and exhaust gas is discharged from Cylinders serially and cyclically. After going through runners, exhaust gas flows into the confluence region of exhaust manifold where oxygen sensor is equipped for the air-fuel ratio measurement of the mixed gas.This paper aims to present a modeling approach from Individual Cylinder fuel injection to the output of the sensor. With consideration of above features of the exhaust system, a BDC-scaled periodic model is proposed. For further illustration, some previous models are compared with new model. Simulation shows that the new model describes appropriately the relation between Individual fuel injection and mixed air-fuel ratio.

  • Exhaust Gas Flow Mixing Model and Application to Individual Cylinder A/F Estimation and Control
    IFAC Proceedings Volumes, 2010
    Co-Authors: Yinhua Liu, Tielong Shen, Yumiko Takayama, Kouta Sata, Kenji Suzuki
    Abstract:

    Abstract This paper investigates a modeling approach for Individual air-fuel ratio in engines with multi-Cylinders. The input of the model is Individual air-fuel ratio and the output is the measurement of air-fuel ratio at the gas mixing point in the exhaust manifold. The model is constructed by following the physics of exhaust gas flows and stochastic treatment. The model is validated by experimental results carried on an engine test bench. Furthermore, as application of the proposed model, an Individual air-fuel ratio estimation method with online adjusting is presented and the Individual air-fuel ratio is controlled via feedback of estimation by experiment.

  • Individual A/F Estimation and Control With the Fuel–Gas Ratio for MultiCylinder IC Engines
    IEEE Transactions on Vehicular Technology, 2009
    Co-Authors: Kenji Suzuki, Tielong Shen, Junichi Kako, Shozo Yoshida
    Abstract:

    In internal combustion engines with multiCylinders, balancing the air-fuel ratio (A/F) for Individual Cylinders is an important issue for providing high-quality torque generation and reducing emissions. This paper addresses the Individual A/F control problem for a six-Cylinder engine with a single sensor. First, a modeling method to estimate the Individual fuel-gas ratio, which immediately provides the A/F, is proposed, and using the estimation model, an adaptive generalized predictive control approach to balancing the Individual Cylinder characteristics is presented, which targets the static engine-operation mode. The effectiveness of the presented model is validated based on the experimental results, and a comparison with existing models is given based on the experiments. Finally, control performance with the proposed Individual A/F control approach is demonstrated with the experiments conducted on a six-Cylinder engine test bench.

  • Modeling and Control of Individual Cylinder Air-Fuel Ratio in Multi-Cylinder Engine with Single Sensor
    Transactions of the Japan Society of Mechanical Engineers Series C, 2008
    Co-Authors: Kenji Suzuki, Tielong Shen, Junichi Kako, Shozo Yoshida
    Abstract:

    In the reciprocating engine with multi-Cylinders, estimation of Cylinder imbalance characteristics is an important issue for online balancing control in order to obtain high quality torque generation and reduce emission. This paper addresses the Individual Cylinder A/F estimation with single sensor and control problem. First, a simple model is proposed that provides an estimation of the Individual Cylinder A/F with multiple sampling data of the single sensor during a cycle. Then, using the model-based estimation, a feedback control approach is shown that is cycle-based PI regulation with the fuel injection as control input. Finally, experimental results carried out on an engine testbench are demonstrated to validate the estimation and the control effectiveness.