The Experts below are selected from a list of 44181 Experts worldwide ranked by ideXlab platform
Bongyeong Koo - One of the best experts on this subject based on the ideXlab platform.
-
Design of an unified chassis controller for rollover prevention, manoeuvrability and Lateral Stability
Vehicle System Dynamics, 2010Co-Authors: Jangyeol Yoon, Wanki Cho, Seongjin Yim, Bongyeong KooAbstract:This paper describes a unified chassis control (UCC) strategy to prevent vehicle rollover and improve both manoeuvrability and Lateral Stability. Since previous researches on rollover prevention are only focused on the reduction of Lateral acceleration, the manoeuvrability and Lateral Stability cannot be guaranteed. For this reason, it is necessary to design a UCC controller to prevent rollover and improve Lateral Stability by integrating electronic Stability control, active front steering and continuous damping control. This integration is performed through switching among several control modes and a simulation is performed to validate the proposed method. Simulation results indicate that a significant improvement in rollover prevention, manoeuvrability and Lateral Stability can be expected from the proposed UCC system.
-
Unified Chassis Control for Rollover Prevention and Lateral Stability
IEEE Transactions on Vehicular Technology, 2009Co-Authors: Jangyeol Yoon, Wanki Cho, Bongyeong KooAbstract:This paper describes a unified chassis control (UCC) strategy to prevent vehicle rollover and improve vehicle Lateral Stability. A rollover index (RI), which indicates impending rollover, and a model-based roll state estimator are introduced to detect potential rollover. An RI/Lateral Stability-based rollover mitigation (ROM) controller is designed to reduce the danger of rollover without loss of vehicle Lateral Stability by integrating electronic Stability control (ESC) and continuous damping control (CDC). Simulation results indicate that significant improvement in vehicle rollover prevention and Lateral Stability can be expected from the proposed UCC system.
Wanki Cho - One of the best experts on this subject based on the ideXlab platform.
-
Unified Chassis Control for the Improvement of Agility, Maneuverability, and Lateral Stability
IEEE Transactions on Vehicular Technology, 2012Co-Authors: Wanki Cho, Jaewoong Choi, Chongkap Kim, Seibum B. ChoiAbstract:This paper describes a unified chassis control (UCC) strategy for improving agility, maneuverability, and vehicle Lateral Stability by the integration of active front steering (AFS) and electronic Stability control (ESC). The proposed UCC system consists of a supervisor, a control algorithm, and a coordinator. The supervisor determines the target yaw rate and velocity based on control modes that consist of no-control, agility-control, maneuverability-control, and Lateral-Stability-control modes. These control modes can be determined using indices that are dimensionless numbers to monitor a current driving situation. To achieve the target yaw rate and velocity, the control algorithm determines the desired yaw moment and longitudinal force, respectively. The desired yaw moment and longitudinal force can be generated by the coordination of the AFS and ESC systems. To consider a performance limit of the ESC system and tires, the coordination is designed using the Karush-Kuhn-Tucker (KKT) condition in an optimal manner. Closed-loop simulations with a driver-vehicle-controller system were conducted to investigate the performance of the proposed control strategy using the CarSim vehicle dynamics software and the UCC controller, which was coded using MATLAB/Simulink. Based on our simulation results, we show that the proposed UCC control algorithm improves vehicle motion with respect to agility, maneuverability, and Lateral Stability, compared with conventional ESC.
-
Design of an unified chassis controller for rollover prevention, manoeuvrability and Lateral Stability
Vehicle System Dynamics, 2010Co-Authors: Jangyeol Yoon, Wanki Cho, Seongjin Yim, Bongyeong KooAbstract:This paper describes a unified chassis control (UCC) strategy to prevent vehicle rollover and improve both manoeuvrability and Lateral Stability. Since previous researches on rollover prevention are only focused on the reduction of Lateral acceleration, the manoeuvrability and Lateral Stability cannot be guaranteed. For this reason, it is necessary to design a UCC controller to prevent rollover and improve Lateral Stability by integrating electronic Stability control, active front steering and continuous damping control. This integration is performed through switching among several control modes and a simulation is performed to validate the proposed method. Simulation results indicate that a significant improvement in rollover prevention, manoeuvrability and Lateral Stability can be expected from the proposed UCC system.
-
Unified Chassis Control for Rollover Prevention and Lateral Stability
IEEE Transactions on Vehicular Technology, 2009Co-Authors: Jangyeol Yoon, Wanki Cho, Bongyeong KooAbstract:This paper describes a unified chassis control (UCC) strategy to prevent vehicle rollover and improve vehicle Lateral Stability. A rollover index (RI), which indicates impending rollover, and a model-based roll state estimator are introduced to detect potential rollover. An RI/Lateral Stability-based rollover mitigation (ROM) controller is designed to reduce the danger of rollover without loss of vehicle Lateral Stability by integrating electronic Stability control (ESC) and continuous damping control (CDC). Simulation results indicate that significant improvement in vehicle rollover prevention and Lateral Stability can be expected from the proposed UCC system.
Jangyeol Yoon - One of the best experts on this subject based on the ideXlab platform.
-
Design of an unified chassis controller for rollover prevention, manoeuvrability and Lateral Stability
Vehicle System Dynamics, 2010Co-Authors: Jangyeol Yoon, Wanki Cho, Seongjin Yim, Bongyeong KooAbstract:This paper describes a unified chassis control (UCC) strategy to prevent vehicle rollover and improve both manoeuvrability and Lateral Stability. Since previous researches on rollover prevention are only focused on the reduction of Lateral acceleration, the manoeuvrability and Lateral Stability cannot be guaranteed. For this reason, it is necessary to design a UCC controller to prevent rollover and improve Lateral Stability by integrating electronic Stability control, active front steering and continuous damping control. This integration is performed through switching among several control modes and a simulation is performed to validate the proposed method. Simulation results indicate that a significant improvement in rollover prevention, manoeuvrability and Lateral Stability can be expected from the proposed UCC system.
-
Unified Chassis Control for Rollover Prevention and Lateral Stability
IEEE Transactions on Vehicular Technology, 2009Co-Authors: Jangyeol Yoon, Wanki Cho, Bongyeong KooAbstract:This paper describes a unified chassis control (UCC) strategy to prevent vehicle rollover and improve vehicle Lateral Stability. A rollover index (RI), which indicates impending rollover, and a model-based roll state estimator are introduced to detect potential rollover. An RI/Lateral Stability-based rollover mitigation (ROM) controller is designed to reduce the danger of rollover without loss of vehicle Lateral Stability by integrating electronic Stability control (ESC) and continuous damping control (CDC). Simulation results indicate that significant improvement in vehicle rollover prevention and Lateral Stability can be expected from the proposed UCC system.
Seibum B. Choi - One of the best experts on this subject based on the ideXlab platform.
-
Unified Chassis Control for the Improvement of Agility, Maneuverability, and Lateral Stability
IEEE Transactions on Vehicular Technology, 2012Co-Authors: Wanki Cho, Jaewoong Choi, Chongkap Kim, Seibum B. ChoiAbstract:This paper describes a unified chassis control (UCC) strategy for improving agility, maneuverability, and vehicle Lateral Stability by the integration of active front steering (AFS) and electronic Stability control (ESC). The proposed UCC system consists of a supervisor, a control algorithm, and a coordinator. The supervisor determines the target yaw rate and velocity based on control modes that consist of no-control, agility-control, maneuverability-control, and Lateral-Stability-control modes. These control modes can be determined using indices that are dimensionless numbers to monitor a current driving situation. To achieve the target yaw rate and velocity, the control algorithm determines the desired yaw moment and longitudinal force, respectively. The desired yaw moment and longitudinal force can be generated by the coordination of the AFS and ESC systems. To consider a performance limit of the ESC system and tires, the coordination is designed using the Karush-Kuhn-Tucker (KKT) condition in an optimal manner. Closed-loop simulations with a driver-vehicle-controller system were conducted to investigate the performance of the proposed control strategy using the CarSim vehicle dynamics software and the UCC controller, which was coded using MATLAB/Simulink. Based on our simulation results, we show that the proposed UCC control algorithm improves vehicle motion with respect to agility, maneuverability, and Lateral Stability, compared with conventional ESC.
Yan Chen - One of the best experts on this subject based on the ideXlab platform.
-
ACC - Estimation and analysis of vehicle Lateral Stability region
2017 American Control Conference (ACC), 2017Co-Authors: Yiwen Huang, Wei Liang, Yan ChenAbstract:This paper discusses a new method of estimating vehicle Lateral Stability region, which is an important way to describe the vehicle safe or stable Lateral operation capability. Benefited from the introduced local linearization method, a realistic 2D LuGre tire model can be applied to describe the coupled and nonlinear longitudinal and Lateral friction forces for the Stability region estimation. Compared with the estimation results from a classic phase portrait method, which does not distinguish vehicle and tire stabilities, the obtained vehicle Lateral Stability regions are more conservative by successfully considering vehicle and tire Stability together. Simulation results discuss the variations and trends of the estimated Stability regions with respect to different main parameters, such as the vehicle longitudinal velocity, tire-road friction coefficient, and steering angle.
