Session｜2024 JSAE Annual Congress (Spring)

Session No.5 Vehicle Dynamics and Control II (OS)
May 22 Room G303 12:10-13:25
Chair: Junya Takahashi (Hitachi)

Contents: This OS is designed to discuss the vehicle dynamics technology from theoretical to practical point of view. The various topics regarding vehicle dynamics will be well-received. (e.g. theoretical study/new aspect of vehicle dynamics, a proposal for dynamics control/modification to improve the vehicle dynamics performance, analysis technology/measurement setup to support this improvement, development of body, chassis components/system.) It is expected that the members who join in this session will get a deep knowledge of vehicle dynamics technology and discuss the various topics from current issue to the next activities.
Committee: Vehicle Dynamics Committee
Organizer: Yoshikazu Hattori (Toyota Central R&D Labs.), Pongsathorn Raksincharoensak (Tokyo University of Agriculture and Technology), Junya Takahashi (Hitachi), Etsuo Katsuyama (Toyota Motor), Ryusuke Hirao (Hitachi Astemo)

No.	Title･Author (Affiliation)
017	Suspension Characteristics Model for Vehicle Dynamics Design Motoshi Ohki (Toyota Motor) In the design of the vehicle dynamics performance, the suspension characteristics are important design elements. In the suspension characteristics, there are the spring characteristics to have the nonlinearities such as bump rubber, the kinematic characteristics such as kingpin axes, the compliance characteristics by the deformation of the elastic material. These characteristics are described by the function using the parameter with meaning dynamically, the suspension characteristics model to design the vehicle dynamics using MBD is developed.
018	Consideration on Effect of Transient Load Transfer Characteristics of Race Car on Dynamic Performance Yusuke Ebashi･Ikkei Kobayashi･Hayato Yamada･Jumpei Kuroda･Daigo Uchino (Tokai University)･Kazuki Ogawa (Aichi University of Technology)･Keigo Ikeda (Hokkaido University of Science)･Mohamad Peeie Heerwan (University Malaysia Pahang)･Hideaki Kato･Takayoshi Narita (Tokai University) It is well known that load transfer is an important factor in race car that boast high dynamic performance, and that the distribution of steady-state load transfer and other factors can be controlled by suspension settings. However, the influence of transient load transfer and motion is not well understood. In this study, a 14-DOF vehicle model is used to clarify the relationship between transient load transfer characteristics and dynamic behavior.
019	Ride Comfort Development using Target Cascading Method based on System Level Testing of Body and Suspension Seungmin Kwon･Bumsuk Kim･Seonghun Kim･Yongsub Yi･Jongho Ko (Hyundai Motor) Predicting the future demands of vehicle industry is difficult, but one of the most important performance is driving comfort. So driving comfort must be a critical factor for future customers. Driving comfort is determined by a combination of subsystems such as tires, suspension, body, and powertrain. Target Cascading was applied to analyze the effect of subsystems on driving comfort. So how to correlate among vehicle, system, and component was developed in this research. By utilizing the results of suspension system testing, a simulation model based on system level was developed, and it derived the component improvement to reach the target.

No.

Title･Author (Affiliation)

017

Suspension Characteristics Model for Vehicle Dynamics Design

Motoshi Ohki (Toyota Motor)

In the design of the vehicle dynamics performance, the suspension characteristics are important design elements. In the suspension characteristics, there are the spring characteristics to have the nonlinearities such as bump rubber, the kinematic characteristics such as kingpin axes, the compliance characteristics by the deformation of the elastic material. These characteristics are described by the function using the parameter with meaning dynamically, the suspension characteristics model to design the vehicle dynamics using MBD is developed.

018

Consideration on Effect of Transient Load Transfer Characteristics of Race Car on Dynamic Performance

Yusuke Ebashi･Ikkei Kobayashi･Hayato Yamada･Jumpei Kuroda･Daigo Uchino (Tokai University)･Kazuki Ogawa (Aichi University of Technology)･Keigo Ikeda (Hokkaido University of Science)･Mohamad Peeie Heerwan (University Malaysia Pahang)･Hideaki Kato･Takayoshi Narita (Tokai University)

It is well known that load transfer is an important factor in race car that boast high dynamic performance, and that the distribution of steady-state load transfer and other factors can be controlled by suspension settings. However, the influence of transient load transfer and motion is not well understood. In this study, a 14-DOF vehicle model is used to clarify the relationship between transient load transfer characteristics and dynamic behavior.

019

Ride Comfort Development using Target Cascading Method based on System Level Testing of Body and Suspension

Seungmin Kwon･Bumsuk Kim･Seonghun Kim･Yongsub Yi･Jongho Ko (Hyundai Motor)

Predicting the future demands of vehicle industry is difficult, but one of the most important performance is driving comfort. So driving comfort must be a critical factor for future customers. Driving comfort is determined by a combination of subsystems such as tires, suspension, body, and powertrain. Target Cascading was applied to analyze the effect of subsystems on driving comfort. So how to correlate among vehicle, system, and component was developed in this research. By utilizing the results of suspension system testing, a simulation model based on system level was developed, and it derived the component improvement to reach the target.