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Papers by Ichiro Kageyama

The Proceedings of the Transportation and Logistics Conference, 2004

The proceedings of the JSME annual meeting, 2007

The Proceedings of the Transportation and Logistics Conference, 2014

Inventions

This study focuses on the possibility of constructing a database on friction coefficients for act... more This study focuses on the possibility of constructing a database on friction coefficients for actual roads from the viewpoint of traffic safety. A measurement algorithm is established to construct a road friction-measuring device. Next, the tires are selected for use in the measurements and their characteristics are measured using a bench tire characteristic tester. The measuring device is designed and constructed based on these characteristics. Finally, using this device, the measurement results of the road friction characteristics for two types of road surfaces are presented.

This abstract is part of the Proceedings of the 2019 Bicycle and Motorcycle Dynamics Conference: ... more This abstract is part of the Proceedings of the 2019 Bicycle and Motorcycle Dynamics Conference: A Symposium on the Dynamics and Control of Single Track Vehicles held in Padova, Italy September 9th through 11th in the year 2019. Artifact ID: 15 Note that this abstract is the first page of the submitted full paper. The authors declined to release the full paper in the proceedings collection. Requests for the full paper should be made to the corresponding author.

This paper is part of the Proceedings of the 2019 Bicycle and Motorcycle Dynamics Conference: A S... more This paper is part of the Proceedings of the 2019 Bicycle and Motorcycle Dynamics Conference: A Symposium on the Dynamics and Control of Single Track Vehicles held in Padova, Italy September 9th through 11th in the year 2019. Artifact ID: 25

This paper deals with a fundamental study to construct a traffic simulator designed with two hier... more This paper deals with a fundamental study to construct a traffic simulator designed with two hierarchy levels,one describes local traffic flow and the other describes global traffic flow. As an example region to analyze traffic flow,we decided to measure the feature of traffic flow at a region of Beijing city in China.As a result,it is clear that the influence of bicycles on the traffic flow had big effect to the surrounding vehicles.After the consideration,a global traffic simulator was designed by using of the celular automaton which is one of a typical procedural method to construct a modeling for complex system. Next,a basic structure design of a local traffic simulator has been done.In this simulator,it aimed to express characteristics of vehicle dynamics,for example right and left turning in intersection,the lane change maneuver,obstacle avoidance,etc,and also to express control behavior of drivers,for example steer action,breaking control,throttle control and so on. Here,the ...

For two-wheeled vehicles behavior, it is necessary to describe the roll motion because a main cen... more For two-wheeled vehicles behavior, it is necessary to describe the roll motion because a main centripetal force at turning is camber-thrust. Therefore, the lowest degree of freedom for two wheeled vehicle compared with the four-wheeled vehicle rises. Furthermore, as the two wheeled vehicle has unstable or less-stable characteristics, a lot of researches for two wheeled vehicle have been poured into three typical modes, capsize, weave, and wobble. However, these modes except the capsize have usually little effect to ordinary behavior of recent motorcycle under the ordinary running speed. Therefore, when we evaluate the motorcycle, sometimes, characteristics of steady state turning and reaction force of the steer bar are used for motorcycle evaluation. As the first stage, characteristics of steady state turning of two wheeled vehicle on constant radius are analyzed, and the stability factor and side slip coefficient for two wheeled vehicle are proposed as follows; Next, using the two ...

The Japanese Journal of Ergonomics, 2018

Pilot study on appropriate information volume for HUD considering driver characteristics Sota SHI... more Pilot study on appropriate information volume for HUD considering driver characteristics Sota SHIMIZU

This paper describes the development and evaluation of a riding simulator (RS) for two-wheeled ve... more This paper describes the development and evaluation of a riding simulator (RS) for two-wheeled vehicles to analyze rider control behavior from the viewpoints of human factors and control engineering. In simulator development, sense of realism is divided into riding sensation and handling feeling. In addition, they are governed by the motion equation and the required pseudo-experience. In this study, we show the effectiveness of wide-angle change and stereoscopic vision in the front visual information. Also, we show that we could lower the degree of freedom of the system in normal travelling conditions. After that, we ensured the equation of motion could be stable at all speed ranges. Through these measures, we were able to reproduce the sense of a real vehicle's riding feeling and handling feeling. Since this simulator is able to generate a higher sense of presence than conventional RS, we were able to create a tool for analyzing the behavior of rider steering.

The Personal Mobility Vehicle (PMV) described in this paper has typical biomimetic features that ... more The Personal Mobility Vehicle (PMV) described in this paper has typical biomimetic features that govern the vehicle body inside a curve. Because the behavior of this proposed vehicle is similar to that of a two-wheeled one, it is necessary to examine the PMV and its potential for interference with other vehicles in the midst of ordinary road traffic. Therefore, we developed a microscale traffic simulator, including a driver model and a road transportation system, taking into account vehicle dynamics. We also analyzed simulation results in order to ensure that the PMV is compatible with the microscale traffic flow.

This research deals with the possibility for construction of the database on the braking friction... more This research deals with the possibility for construction of the database on the braking friction coefficient for actual roads from the viewpoint of traffic safety especially for automated driving such as level 4 or higher. In an automated driving such levels, the controller needs to control the vehicle, but the road surface condition, especially the road friction coefficient on wet roads, snowy or icy roads, changes greatly, and in some cases, changes by almost one order. Therefore, it is necessary for the controller to constantly collect environment information such as the road friction coefficients and prepare for emergencies such as obstacle avoidance. However, at present, the measurement of the road friction coefficients is not systemically performed, and a method for accurately measuring has not been established. In order to improve this situation, this study examines a method for continuously measurement for the road friction characteristics such as μ-s characteristics.

The Proceedings of the Transportation and Logistics Conference, 2018

The Proceedings of the Transportation and Logistics Conference, 2005

This s加 dy deals construction of a Traffic simulator for the evaluation too 】of tlaffic且ow ． As t... more This s加 dy deals construction of a Traffic simulator for the evaluation too 】of tlaffic且ow ． As the first step of in this study ， in oldel to take decision − making of a driver into consideration ，1he right 一加 m uction model in a crossing was built ． This traffic simulator was built by the Clriver mode 】， which used to as Fuzzy and the vehicles mode1 of cross Clirection contro1 ． Finally ， the constructed traffic simulator is described real traffic flow ． Keywords ． Driver mode1 ， Traffic f imulatol ， Fuzzy model ， Decision − making

NIPPON GOMU KYOKAISHI, 1998

The Proceedings of the Transportation and Logistics Conference, 2001

In this study ， we constructed autonomous two wheeled vehicle (the Rider Robot) which use for eva... more In this study ， we constructed autonomous two wheeled vehicle (the Rider Robot) which use for eva 】 uation of two wheeled vehicle dynamics ． The Rider Robot consist e 】 ectTomechanical dcvice and operate by the control algorithm without the need foT a human rider ． We consideT the control algorithrn was separated directory and standing contro1 ． The mode ］ of standing control was constructeCl foT the model using the data based on maneuver of the rider using muhiple regres − slo皿 analysis ． And direction control was giving the purpose of dynamic roll angle ， which from purpose turning radius that acquired tbe difference between image allalysis and second order prediction mode 】．