The Experts below are selected from a list of 4266 Experts worldwide ranked by ideXlab platform
Umit Ozguner - One of the best experts on this subject based on the ideXlab platform.
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Variable-Structure Control of Electronic Throttle Valve
IEEE Transactions on Industrial Electronics, 2008Co-Authors: Yaodong Pan, Umit Ozguner, Oguz H. DagciAbstract:In recent years, the use of electronic Throttle Valve systems has been very popular in the automotive industry. However, there exist difficulties in controlling the electronic Throttle Valve because of multiple nonsmooth nonlinearities including stick-slip friction, backlash, and a discontinuous nonlinear spring involved in the system. To alleviate the aforementioned difficulties in controlling the opening angle of a Throttle plate and to realize a highly robust controller against uncertainties in the Throttle body's mathematical model with limited cost, the variable structure concept is utilized after the employment of feedback backstepping techniques in the intermediate stages of design. Furthermore, the sliding mode observer design technique with equivalent control is exploited in order to estimate the values of necessary states that are not measured. The performance of the proposed controller is evaluated by performing some experiments on the Throttle Valve setup. First, small scale reference signals that pass through the nonsmooth nonlinearities are tracked even in different disturbed situations by the Throttle Valve plate, and then, the performance of the controller is tested for large-scale reference signals to observe the reaction time of the controller to sudden changes. For all the cases, the controller works rather well and meets the performance specifications.
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Sliding mode control of electronic Throttle Valve
Proceedings of the 2002 American Control Conference (IEEE Cat. No.CH37301), 2002Co-Authors: Oguz H. Dagci, Yaodong Pan, Umit OzgunerAbstract:This paper focuses on the design of a controller for the Throttle Valve that is used in combustion engines for the purpose of adjusting air-fuel ratio. Due to the right-hand side discontinuities and uncertainties in the Throttle body's mathematical model, sliding mode concept is utilized after the employment of feedback linearization techniques in the intermediate stages of design. Finally, the performance of the proposed controller is evaluated with the simulation and experimental studies.
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Variable structure control of electronic Throttle Valve
IVEC2001. Proceedings of the IEEE International Vehicle Electronics Conference 2001. IVEC 2001 (Cat. No.01EX522), 1Co-Authors: Yaodong Pan, Oguz H. Dagci, Umit OzgunerAbstract:The use of an electronic controlled Throttle Valve can increase the efficiency and performance of an engine since the control of the Throttle Valve, which is determined according to the desired amount of air flow calculated from the desired speed and engine torque, is independent from the position of the accelerator. In this paper, a variable structure (VS) controller is designed for the electronic Throttle Valve. The model of the electronic Throttle Valve is discussed at first. Then the VS controller is proposed by using the backstepping approach. Finally, simulation and experimental results are given.
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Discrete-time sliding mode control of electronic Throttle Valve
Proceedings of the 40th IEEE Conference on Decision and Control (Cat. No.01CH37228), 1Co-Authors: Umit Ozguner, Sulgi Hong, Yaodong PanAbstract:Unlike a conventional Throttle Valve which is connected to the accelerator directly by a wire, an electronic Throttle Valve is driven by a DC motor and can move independently from the position of the accelerator. This feature provides flexibility in determining the amount of air flow into the engine. However, it is difficult to control the electronic Throttle Valve as the Valve system involves nonsmooth nonlinearities such as stick-slip friction, gear backlash, and nonlinear spring. The electronic Throttle Valve system is modeled with the nonsmooth nonlinearities considered. A discrete-time sliding mode controller and observer are designed to realize robust tracking control of the Valve system. Experimental results are presented.
Yaodong Pan - One of the best experts on this subject based on the ideXlab platform.
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Variable-Structure Control of Electronic Throttle Valve
IEEE Transactions on Industrial Electronics, 2008Co-Authors: Yaodong Pan, Umit Ozguner, Oguz H. DagciAbstract:In recent years, the use of electronic Throttle Valve systems has been very popular in the automotive industry. However, there exist difficulties in controlling the electronic Throttle Valve because of multiple nonsmooth nonlinearities including stick-slip friction, backlash, and a discontinuous nonlinear spring involved in the system. To alleviate the aforementioned difficulties in controlling the opening angle of a Throttle plate and to realize a highly robust controller against uncertainties in the Throttle body's mathematical model with limited cost, the variable structure concept is utilized after the employment of feedback backstepping techniques in the intermediate stages of design. Furthermore, the sliding mode observer design technique with equivalent control is exploited in order to estimate the values of necessary states that are not measured. The performance of the proposed controller is evaluated by performing some experiments on the Throttle Valve setup. First, small scale reference signals that pass through the nonsmooth nonlinearities are tracked even in different disturbed situations by the Throttle Valve plate, and then, the performance of the controller is tested for large-scale reference signals to observe the reaction time of the controller to sudden changes. For all the cases, the controller works rather well and meets the performance specifications.
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Sliding mode control of electronic Throttle Valve
Proceedings of the 2002 American Control Conference (IEEE Cat. No.CH37301), 2002Co-Authors: Oguz H. Dagci, Yaodong Pan, Umit OzgunerAbstract:This paper focuses on the design of a controller for the Throttle Valve that is used in combustion engines for the purpose of adjusting air-fuel ratio. Due to the right-hand side discontinuities and uncertainties in the Throttle body's mathematical model, sliding mode concept is utilized after the employment of feedback linearization techniques in the intermediate stages of design. Finally, the performance of the proposed controller is evaluated with the simulation and experimental studies.
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Variable structure control of electronic Throttle Valve
IVEC2001. Proceedings of the IEEE International Vehicle Electronics Conference 2001. IVEC 2001 (Cat. No.01EX522), 1Co-Authors: Yaodong Pan, Oguz H. Dagci, Umit OzgunerAbstract:The use of an electronic controlled Throttle Valve can increase the efficiency and performance of an engine since the control of the Throttle Valve, which is determined according to the desired amount of air flow calculated from the desired speed and engine torque, is independent from the position of the accelerator. In this paper, a variable structure (VS) controller is designed for the electronic Throttle Valve. The model of the electronic Throttle Valve is discussed at first. Then the VS controller is proposed by using the backstepping approach. Finally, simulation and experimental results are given.
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Discrete-time sliding mode control of electronic Throttle Valve
Proceedings of the 40th IEEE Conference on Decision and Control (Cat. No.01CH37228), 1Co-Authors: Umit Ozguner, Sulgi Hong, Yaodong PanAbstract:Unlike a conventional Throttle Valve which is connected to the accelerator directly by a wire, an electronic Throttle Valve is driven by a DC motor and can move independently from the position of the accelerator. This feature provides flexibility in determining the amount of air flow into the engine. However, it is difficult to control the electronic Throttle Valve as the Valve system involves nonsmooth nonlinearities such as stick-slip friction, gear backlash, and nonlinear spring. The electronic Throttle Valve system is modeled with the nonsmooth nonlinearities considered. A discrete-time sliding mode controller and observer are designed to realize robust tracking control of the Valve system. Experimental results are presented.
Oguz H. Dagci - One of the best experts on this subject based on the ideXlab platform.
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Variable-Structure Control of Electronic Throttle Valve
IEEE Transactions on Industrial Electronics, 2008Co-Authors: Yaodong Pan, Umit Ozguner, Oguz H. DagciAbstract:In recent years, the use of electronic Throttle Valve systems has been very popular in the automotive industry. However, there exist difficulties in controlling the electronic Throttle Valve because of multiple nonsmooth nonlinearities including stick-slip friction, backlash, and a discontinuous nonlinear spring involved in the system. To alleviate the aforementioned difficulties in controlling the opening angle of a Throttle plate and to realize a highly robust controller against uncertainties in the Throttle body's mathematical model with limited cost, the variable structure concept is utilized after the employment of feedback backstepping techniques in the intermediate stages of design. Furthermore, the sliding mode observer design technique with equivalent control is exploited in order to estimate the values of necessary states that are not measured. The performance of the proposed controller is evaluated by performing some experiments on the Throttle Valve setup. First, small scale reference signals that pass through the nonsmooth nonlinearities are tracked even in different disturbed situations by the Throttle Valve plate, and then, the performance of the controller is tested for large-scale reference signals to observe the reaction time of the controller to sudden changes. For all the cases, the controller works rather well and meets the performance specifications.
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Sliding mode control of electronic Throttle Valve
Proceedings of the 2002 American Control Conference (IEEE Cat. No.CH37301), 2002Co-Authors: Oguz H. Dagci, Yaodong Pan, Umit OzgunerAbstract:This paper focuses on the design of a controller for the Throttle Valve that is used in combustion engines for the purpose of adjusting air-fuel ratio. Due to the right-hand side discontinuities and uncertainties in the Throttle body's mathematical model, sliding mode concept is utilized after the employment of feedback linearization techniques in the intermediate stages of design. Finally, the performance of the proposed controller is evaluated with the simulation and experimental studies.
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Variable structure control of electronic Throttle Valve
IVEC2001. Proceedings of the IEEE International Vehicle Electronics Conference 2001. IVEC 2001 (Cat. No.01EX522), 1Co-Authors: Yaodong Pan, Oguz H. Dagci, Umit OzgunerAbstract:The use of an electronic controlled Throttle Valve can increase the efficiency and performance of an engine since the control of the Throttle Valve, which is determined according to the desired amount of air flow calculated from the desired speed and engine torque, is independent from the position of the accelerator. In this paper, a variable structure (VS) controller is designed for the electronic Throttle Valve. The model of the electronic Throttle Valve is discussed at first. Then the VS controller is proposed by using the backstepping approach. Finally, simulation and experimental results are given.
Yaonan Wang - One of the best experts on this subject based on the ideXlab platform.
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Genetic algorithm-based adaptive fuzzy sliding mode controller for electronic Throttle Valve
Neural Computing and Applications, 2013Co-Authors: Xiaofang Yuan, Yimin Yang, Hui Wang, Yaonan WangAbstract:Electronic Throttle Valves are electromechanical systems which regulate the air flow inside gasoline engines. The objective of electronic Throttle Valve control is to ensure fast and accurate reference tracking of the Valve plate angle. This control demands are hard to accomplish since the plant is burdened with strong nonlinear effects and parameters uncertainty. In this paper, a genetic algorithm-based adaptive fuzzy sliding mode controller (AFSMC) is proposed for an electronic Throttle considering actuator nonlinearities. In the AFSMC approach, fuzzy logic system is applied to approximate the plant model and the actuator model, the sliding mode controller makes full use of the plant model to guarantee robust control even in the presence of parameters uncertainty, and genetic algorithm is developed to search the optimal control gains values of the AFSMC. The performance of the AFSMC is verified by computer simulation and experiment.
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A Novel Electronic-Throttle-Valve Controller Based on Approximate Model Method
IEEE Transactions on Industrial Electronics, 2009Co-Authors: Xiaofang Yuan, Yaonan WangAbstract:An electronic Throttle is a dc servo drive which positions the Throttle plate, thus providing drive-by-wire control of engine torque. In this paper, an approximate model-based robust nonlinear control (AMRNC) strategy is proposed for electronic Throttle Valve. The AMRNC includes two main parts: approximate model controller and uncertainty compensation. The approximate model controller, utilized as a feedforward controller, is developed from a linearization of the input-output model of the plant using Taylor expansion technique, and it is implemented using fuzzy system modeling. Moreover, a robustness filter in the feedback structure is employed as uncertainty compensation. The robust stability is established by Lyapunov stability theorem. A simulation and an experiment are provided to verify the effectiveness of the AMRNC strategy.
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svm based approximate model control for electronic Throttle Valve
IEEE Transactions on Vehicular Technology, 2008Co-Authors: Xiaofang Yuan, Yaonan WangAbstract:An electronic Throttle is a dc-motor-driven Valve that regulates air inflow into the combustion system of an engine. The Throttle control system should ensure fast and accurate reference tracking of the Valve plate angle while preventing excessive wear of the Throttle's components by constraining physical variables to their normal-operation domains. These high-quality control demands are hard to accomplish since the plant is burdened with the strong effects of stick-slip friction, a spring, and gear backlash. This paper proposes a support vector machine (SVM)-based approximate model control for the electronic Throttle. The nonlinear control law is derived directly based on an input-output approximation method via the Taylor expansion, which avoids not only complex control development and intensive computation but also online learning or adjustment. Only a general SVM modeling technique is involved in both model identification and controller implementation. The robustness of the stability is established by the Lyapunov method. The proposed nonlinear controller is verified by computer simulations and experiments.
Xiaofang Yuan - One of the best experts on this subject based on the ideXlab platform.
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Genetic algorithm-based adaptive fuzzy sliding mode controller for electronic Throttle Valve
Neural Computing and Applications, 2013Co-Authors: Xiaofang Yuan, Yimin Yang, Hui Wang, Yaonan WangAbstract:Electronic Throttle Valves are electromechanical systems which regulate the air flow inside gasoline engines. The objective of electronic Throttle Valve control is to ensure fast and accurate reference tracking of the Valve plate angle. This control demands are hard to accomplish since the plant is burdened with strong nonlinear effects and parameters uncertainty. In this paper, a genetic algorithm-based adaptive fuzzy sliding mode controller (AFSMC) is proposed for an electronic Throttle considering actuator nonlinearities. In the AFSMC approach, fuzzy logic system is applied to approximate the plant model and the actuator model, the sliding mode controller makes full use of the plant model to guarantee robust control even in the presence of parameters uncertainty, and genetic algorithm is developed to search the optimal control gains values of the AFSMC. The performance of the AFSMC is verified by computer simulation and experiment.
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A Novel Electronic-Throttle-Valve Controller Based on Approximate Model Method
IEEE Transactions on Industrial Electronics, 2009Co-Authors: Xiaofang Yuan, Yaonan WangAbstract:An electronic Throttle is a dc servo drive which positions the Throttle plate, thus providing drive-by-wire control of engine torque. In this paper, an approximate model-based robust nonlinear control (AMRNC) strategy is proposed for electronic Throttle Valve. The AMRNC includes two main parts: approximate model controller and uncertainty compensation. The approximate model controller, utilized as a feedforward controller, is developed from a linearization of the input-output model of the plant using Taylor expansion technique, and it is implemented using fuzzy system modeling. Moreover, a robustness filter in the feedback structure is employed as uncertainty compensation. The robust stability is established by Lyapunov stability theorem. A simulation and an experiment are provided to verify the effectiveness of the AMRNC strategy.
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svm based approximate model control for electronic Throttle Valve
IEEE Transactions on Vehicular Technology, 2008Co-Authors: Xiaofang Yuan, Yaonan WangAbstract:An electronic Throttle is a dc-motor-driven Valve that regulates air inflow into the combustion system of an engine. The Throttle control system should ensure fast and accurate reference tracking of the Valve plate angle while preventing excessive wear of the Throttle's components by constraining physical variables to their normal-operation domains. These high-quality control demands are hard to accomplish since the plant is burdened with the strong effects of stick-slip friction, a spring, and gear backlash. This paper proposes a support vector machine (SVM)-based approximate model control for the electronic Throttle. The nonlinear control law is derived directly based on an input-output approximation method via the Taylor expansion, which avoids not only complex control development and intensive computation but also online learning or adjustment. Only a general SVM modeling technique is involved in both model identification and controller implementation. The robustness of the stability is established by the Lyapunov method. The proposed nonlinear controller is verified by computer simulations and experiments.
