Seongjin Yim
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View article: Design of Static Output Feedback Active Suspension Controllers with Quarter-Car Model for Motion Sickness Mitigation
Design of Static Output Feedback Active Suspension Controllers with Quarter-Car Model for Motion Sickness Mitigation Open
This paper presents a method to design a static output feedback active suspension controller with a quarter-car model for motion sickness mitigation. To mitigate motion sickness in a vehicle, it has been known that the vertical acceleratio…
View article: OID-PPO: Optimal Interior Design using Proximal Policy Optimization by Transforming Design Guidelines into Reward Functions
OID-PPO: Optimal Interior Design using Proximal Policy Optimization by Transforming Design Guidelines into Reward Functions Open
Designing residential interiors strongly impacts occupant satisfaction but remains challenging due to unstructured spatial layouts, high computational demands, and reliance on expert knowledge. Existing methods based on optimization or dee…
View article: Design of Parameter Adaptive Suspension Controllers with Kalman Filter for Ride Comfort Enhancement and Motion Sickness Reduction
Design of Parameter Adaptive Suspension Controllers with Kalman Filter for Ride Comfort Enhancement and Motion Sickness Reduction Open
This paper presents a method to design a parameter adaptive suspension controller to boost ride comfort and to reduce motion sickness. According to recently published papers, combined motions of a sprung mass (SPMS) along heave and pitch d…
View article: Design of Static Output Feedback Integrated Path Tracking Controller for Autonomous Vehicles
Design of Static Output Feedback Integrated Path Tracking Controller for Autonomous Vehicles Open
This paper presents a method for designing a static output feedback integrated path tracking controller for autonomous vehicles. For path tracking, state–space model-based control methods, such as linear quadratic regulator, H∞ control, sl…
View article: Comparative Study on Active Suspension Controllers with Parameter Adaptive and Static Output Feedback Control
Comparative Study on Active Suspension Controllers with Parameter Adaptive and Static Output Feedback Control Open
This paper presents a comparative study on active suspension controllers for ride comfort. Two types of active suspension controllers are designed and compared in terms of ride comfort: static output feedback (SOF) and parameter adaptive o…
View article: Design of Active Suspension Controllers for 8 × 8 Armored Combat Vehicles
Design of Active Suspension Controllers for 8 × 8 Armored Combat Vehicles Open
This paper presents a method to design an active suspension controller for 8 × 8 armored combat vehicles, which is called corner damping control (CDC). It is assumed that the target vehicle with 8 × 8 drive mechanisms and 8 suspensions has…
View article: Design of a Suspension Controller with Human Body Model for Ride Comfort Improvement and Motion Sickness Mitigation
Design of a Suspension Controller with Human Body Model for Ride Comfort Improvement and Motion Sickness Mitigation Open
This paper presents a method to design a suspension controller with a human body model for ride comfort improvement and motion sickness mitigation. Generally, it has been known that the vertical acceleration of a sprung mass should be redu…
View article: Design of a Path-Tracking Controller with an Adaptive Preview Distance Scheme for Autonomous Vehicles
Design of a Path-Tracking Controller with an Adaptive Preview Distance Scheme for Autonomous Vehicles Open
This paper presents a method to design a path-tracking controller with an adaptive preview distance scheme for autonomous vehicles. Generally, the performance of a path-tracking controller depends on tire–road friction and is severely dete…
View article: Design of a Suspension Controller with an Adaptive Feedforward Algorithm for Ride Comfort Enhancement and Motion Sickness Mitigation
Design of a Suspension Controller with an Adaptive Feedforward Algorithm for Ride Comfort Enhancement and Motion Sickness Mitigation Open
This paper presents a design method of a suspension controller with an adaptive feedforward algorithm for ride comfort enhancement and motion sickness mitigation. Recently, it was shown that motion sickness is caused by combined heave and …
View article: Design of Static Output Feedback Suspension Controllers for Ride Comfort Improvement and Motion Sickness Reduction
Design of Static Output Feedback Suspension Controllers for Ride Comfort Improvement and Motion Sickness Reduction Open
This paper presents a method to design a static output feedback active suspension controller for ride comfort improvement and motion sickness reduction in a real vehicle system. Full-state feedback controller has shown good performance for…
View article: Design of Active Suspension Controller for Ride Comfort Enhancement and Motion Sickness Mitigation
Design of Active Suspension Controller for Ride Comfort Enhancement and Motion Sickness Mitigation Open
This paper presents a method for designing an active suspension controller for ride comfort enhancement and motion sickness mitigation. For this, it is necessary to design an active suspension controller, which aims to reduce the vertical …
View article: Path Tracking Control with Constraint on Tire Slip Angles under Low-Friction Road Conditions
Path Tracking Control with Constraint on Tire Slip Angles under Low-Friction Road Conditions Open
This paper presents a method to design a path tracking controller with a constraint on tire slip angles under low-friction road conditions. On a low-friction road surface, a lateral tire force is easily saturated and decreases as a tire sl…
View article: Automated Parking System for Tractor-Trailer Vehicle
Automated Parking System for Tractor-Trailer Vehicle Open
By virtue of recent development in automated parking system, there has been growing interest in tractor-trailer automated parking application (TTAPA). However, there are two major obstacles when developing TTAPA. The one is low maneuverabi…
View article: Comparative Study on Coordinated Control of Path Tracking and Vehicle Stability for Autonomous Vehicles on Low-Friction Roads
Comparative Study on Coordinated Control of Path Tracking and Vehicle Stability for Autonomous Vehicles on Low-Friction Roads Open
This paper presents a comparative study on coordinated control of path tracking and vehicle stability for autonomous vehicles on low-friction roads. Generally, a path-tracking controller designed on high-friction roads cannot provide good …
View article: Comparative Study on Effects of Input Configurations of Linear Quadratic Controller on Path Tracking Performance under Low Friction Condition
Comparative Study on Effects of Input Configurations of Linear Quadratic Controller on Path Tracking Performance under Low Friction Condition Open
This paper presents a comparative study on the effects of the input configurations of linear quadratic (LQ) controllers on path tracking performance under low friction conditions. For the last decade, the path tracking controller has adopt…
View article: Comparative Study of Path Tracking Controllers on Low Friction Roads for Autonomous Vehicles
Comparative Study of Path Tracking Controllers on Low Friction Roads for Autonomous Vehicles Open
This paper presents a comparison among path tracking controllers on low-friction roads for autonomous vehicles. There are two goals in this paper. The first is to check the performance of path tracking controllers on low-friction roads, an…
View article: Integrated Path Tracking and Lateral Stability Control with Four-Wheel Independent Steering for Autonomous Electric Vehicles on Low Friction Roads
Integrated Path Tracking and Lateral Stability Control with Four-Wheel Independent Steering for Autonomous Electric Vehicles on Low Friction Roads Open
This paper presents a method to design an integrated path tracking and lateral stability controller for an autonomous electric vehicle with four-wheel independent steering (4WIS) on low friction roads. Recent advances in autonomous driving…
View article: Model Predictive Control Based Path Tracking and Velocity Control with Rollover Prevention Function for Autonomous Electric Road Sweeper
Model Predictive Control Based Path Tracking and Velocity Control with Rollover Prevention Function for Autonomous Electric Road Sweeper Open
This paper presents a model predictive control (MPC)-based algorithm for rollover prevention of an autonomous electric road sweeper (AERS). For AERS, the basic function of autonomous driving is a path- and velocity-tracking control needed …
View article: Design of a Modal Controller With Simple Models for an Active Suspension System
Design of a Modal Controller With Simple Models for an Active Suspension System Open
This paper presents a method to design a modal controller with simple 1-DOF models for an active suspension system. Full-state feedback controller, especially, linear quadratic regulator (LQR) and controller, designed with 7-DOF full-car …
View article: Design of Virtual Reference Feedforward Controller for an Active Suspension System
Design of Virtual Reference Feedforward Controller for an Active Suspension System Open
This paper presents a method to design a virtual reference feedforward controller (VRFC) for an active suspension system. Generally, it is not easy to apply a feedforward control to an active suspension system because a reference or distur…
View article: Path Tracking Control With Four-Wheel Independent Steering, Driving and Braking Systems for Autonomous Electric Vehicles
Path Tracking Control With Four-Wheel Independent Steering, Driving and Braking Systems for Autonomous Electric Vehicles Open
This paper presents a method to design a path tracking controller with four-wheel independent braking (4WIB), drive (4WID) and steering (4WIS) systems equipped in in-wheel motor-driven electric vehicles (IWM-EVs). Generally, it is difficul…
View article: Coordinated Compensation Between Active and Semi-Active Actuators for Suspension Control System
Coordinated Compensation Between Active and Semi-Active Actuators for Suspension Control System Open
This paper presents coordinated compensation schemes between active and semi-active actuators in suspension control system. Generally in active suspension systems, active actuators have been adopted to generate a control force calculated b…
View article: Design of Static Output Feedback Controllers for an Active Suspension System
Design of Static Output Feedback Controllers for an Active Suspension System Open
This paper presents a method by which to design linear quadratic (LQ) static output feedback (SOF) controllers with a 2-DOF quarter-car model for an active suspension system. Generally, it is challenging to implement linear quadratic regul…
View article: Design of Static Output Feedback and Structured Controllers for Active Suspension with Quarter-Car Model
Design of Static Output Feedback and Structured Controllers for Active Suspension with Quarter-Car Model Open
This paper presents a method to design active suspension controllers for a 7-Degree-of-Freedom (DOF) full-car (FC) model from controllers designed with a 2-DOF quarter-car (QC) one. A linear quadratic regulator (LQR) with 7-DOF FC model ha…
View article: Model Predictive Control-Based Integrated Path Tracking and Velocity Control for Autonomous Vehicle with Four-Wheel Independent Steering and Driving
Model Predictive Control-Based Integrated Path Tracking and Velocity Control for Autonomous Vehicle with Four-Wheel Independent Steering and Driving Open
This paper presents an MPC-based integrated control algorithm for an autonomous vehicle equipped with four-wheel independent steering and driving systems. The objective of this research is to improve the performance of the path and velocit…
View article: Rollover Prevention Control for Autonomous Electric Road Sweeper
Rollover Prevention Control for Autonomous Electric Road Sweeper Open
This paper presents a method to prevent the rollover of autonomous electric road sweepers (AERS). AERS have an articulated frame steering (AFS) mechanism. Moreover, the heights of the center of gravity of the front and rear bodies are high…
View article: Vehicle Dynamic Control with 4WS, ESC and TVD under Constraint on Front Slip Angles
Vehicle Dynamic Control with 4WS, ESC and TVD under Constraint on Front Slip Angles Open
To enhance vehicle maneuverability and stability, a controller with 4-wheel steering (4WS), electronic stability control (ESC) and a torque vectoring device (TVD) under constraint on the front slip angles is designed in this research. In t…