NISHIHARA Osamu

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Name
NISHIHARA Osamu
Affiliation
Kyoto University
Section
Graduate School of Informatics, Department of Systems Science
Job title
Associate Professor
Degree
Doctor of Engineering

Research Areas

 
 

Education

 
 
 - 
1986
Graduate School, Division of Engineering, Kyoto University
 

Published Papers

 
Amrik Singh and Osamu Nishihara
IEEE Transactions on Intelligent Transportation Systems      2018   [Refereed]
NISHIHARA Osamu
ASME Journal of Vibration and Acoustics      2018   [Refereed]
Trajectory Generation and Tracking Using Integrated Control of 4WS and DYC for Minimum Jerk Obstacle Avoidance
Amrik Singh and Osamu Nishihara
Proc. of FAST-zero '17, Nara      Sep 2017   [Refereed]
Nondimensionalized Indices for Collision Avoidance based on Optimal Control Theory
Amrik Singh and Osamu Nishihara
Proc. of FISITA 2016, Busan      Sep 2016   [Refereed]
Amrik Singh and Osamu Nishihara
Proc. of IFAC HMS 2016, Kyoto   49(19) 486-493   Sep 2016   [Refereed]
Comparison of Optimization Schemes for Tire Force Distribution in Integrated Chassis Control
Osamu Nishihara
Proc. of AVEC'14 The 12th International Symposium on Advanced Vehicle Control      Sep 2014   [Refereed]
Osamu Nishihara
Proc. of IFAC AAC 2013   7(PART 1) 631-636   Sep 2013   [Refereed]
NISHIHARA Osamu
TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A   79(799) 629-644   Mar 2013   [Refereed]
The direct yaw-moment control (DYC) poses an optimization problem of determining the traction/braking forces distribution that is to be solved online to minimize the risk of tire force saturation to avoid instable vehicle behaviors. One of the aut...
O. Nishihara; Y. Yoneima
Proc. of FISITA 2012 World Automotive Congress      Nov 2012   [Refereed]
KITANO Hiroaki, KURISHIGE Masahiko
TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A   78(795) 3715-3729   Nov 2012   [Refereed]
This paper describes a method for estimating the crosswind disturbance and the transverse slope affecting a passenger vehicle that is travelling in a straight line. It also discusses a compensation control system that uses electric power steering ...
NISHIHARA Osamu, HIGASHINO Shimpei
Dynamics & Design Conference   2012 "349-1"-"349-8"   Sep 2012
Here, we analyze the energy loss that occurs owing to slippage between tires and the road surface in four-wheel-steering electric vehicles. We investigate the determination of tire force distribution for minimizing the energy loss as an optimizati...
NISHIHARA Osamu, YAMABE Yuki
Dynamics & Design Conference   2012 "225-1"-"225-9"   Sep 2012
Vehicles acquire longitudinal force, lateral force, and yaw moment to achieve desired movements by generating tire force, which is the friction force between the four wheels and the road. In this study, we formulate an optimization problem of seek...
Exact Solution to Four-wheel Independent Driving/Braking Force Distribution and Direct Yaw-moment Optimization with Minimax Criterion of Tire Workload
O. Nishihara, S. Higashino
Proc. of AVEC'12 The 11th International Symposium on Advanced Vehicle Control      Sep 2012   [Refereed]
MATSUMOTO Daiki, NISHIHARA Osamu
The Transportation and Logistics Conference   2011(20) 63-66   Dec 2011
In this study, the traction/braking force distribution in electric vehicles for minimizing travel resistance when taking a turn is investigated in relation with power conservation. The travel resistance of a front-steer-rear-drive vehicle decrease...
KITANO Hiroaki, NISHIHARA Osamu, KURISHIGE Masahiko, MATSUNAGA Takanori
Dynamics and Design Conference : D & D   2011(0)    Sep 2011
IKEUCHI Shinji, NISHIHARA Osamu
Dynamics and Design Conference : D & D   2011(0)    Sep 2011
NISHIHARA Osamu, HIGASHINO Shimpei
Mechanical Engineering Congress, Japan   2011 "J181033-1"-"J181033-4"   Sep 2011
The direct yaw moment control (DYC) poses an optimization problem for the determination of tire force distribution. One of us has derived an algebraic solution to a minimax optimization problem that is characterized by the requirement of the tract...
NISHIHARA Osamu, SAIKI Hitoshi
Mechanical Engineering Congress, Japan   2011 "J181012-1"-"J181012-5"   Sep 2011
In this study, we derive a curvature output type vehicle handling model for the theoretical study of a driver-vehicle system in the lane following driving mode, and the parameters are set using the stability of the whole system as the optimization...
O. Nishihara; M. Kurishige
Journal of Dynamic Systems, Measurement and Control, Transactions of the ASME   133(4)    Jul 2011   [Refereed]
Nishihara Osamu, Kumazawa Takuma
Dynamics and Design Conference   2011(12) 157-162   Jun 2011
Electric power conservation technologies for electric vehicles have been an active area of research mainly for purpose of cruising range extensions. In the present study, the energy loss owing to dissipation by slippage during acceleration is stud...
KURISHIGE Masahiko, NISHIHARA Osamu, KUMAMOTO Hiromitsu
TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A   77(777) 1813-1823   May 2011   [Refereed]
The critical steering angle that the self-centering of the steering wheel occurs is one of the important measures for steering maneuverability. It is shown that this critical angle is influenced by the damping coefficient of the torsion bar if sli...
MATSUMOTO Daiki, NISHIHARA Osamu
関西支部講演会講演論文集   2011(86) "11-22"   Mar 2011
NISHIHARA Osamu
Transactions of the Japan Society of Mechanical Engineers. C   76(772) 3577-3586   Dec 2010   [Refereed]
Real-time optimizations of the lateral and longitudinal tire force distributions based on tire workloads are investigated. In previous studies, the authors realized minimax optimizations for several configurations of independent steering vehicles;...
KURISHIGE Masahiko, NISHIHARA Osamu, KUMAMOTO Hiromitsu
Transactions of the Japan Society of Mechanical Engineers. C   76(770) 2568-2577   Oct 2010   [Refereed]
This paper presents a new motor current control strategy to reduce current fluctuation. Such current fluctuation may cause undesirable torque ripple and acoustic noise for tactile torque control system such as EPS. Using a DC-motor, current fluctu...
M. Kurishige; O. Nishihara; H. Kumamoto
Journal of Vibration and Acoustics, Transactions of the ASME   132(5)    Sep 2010   [Refereed]
NISHIHARA Osamu, KUMAZAWA Takuma
Dynamics & Design Conference   2010 "330-1"-"330-6"   Sep 2010
It is important to increase the cruising range of electric vehicles, and therefore, electric power conservation technologies are being actively researched. In the present study, the energy loss due to dissipation by slippage during acceleration is...
Nishihara Osamu, Nakajima Hajime, Iizuka Yuichi, Kurishige Masahiko
Dynamics & Design Conference   2010 "327-1"-"327-6"   Sep 2010
A brush model with the assumption of a quartic or sextic curve is studied. The tire forces and aligning torque are analyzed assuming isotropic or anisotropic elasticity of the brush, and these relations are rearranged to obtain equations for grip ...
NISHIHARA Osamu, IKEUCHI Shinji, KURISHIGE Masahiko
Dynamics & Design Conference   2010 "324-1"-"324-6"   Sep 2010
The behavior of an active steering vehicle steered using a D^* controller may be affected by the pitching axis component of gravitational acceleration. A control scheme that uses lateral acceleration feedback obtained from a lateral acceleration s...
KURISHIGE Masahiko, NISHIHARA Osamu, KUMAMOTO Hiromitsu
Dynamics & Design Conference   2010 "321-1"-"321-6"   Sep 2010
The critical steering angle that the self-centering of the steering wheel occurs is one of the important measures for steering maneuverability. It is shown that this critical angle is influenced by the damping coefficient of the torsion bar if sli...
NISHIHARA Osamu, NAKAJIMA Hajime, NODA Shintaro, KURISHIGE Masahiko
Transactions of the Japan Society of Mechanical Engineers. C   76(765) 1353-1361   May 2010   [Refereed]
Relational expressions to estimate the grip margin of a tire have been derived. By carrying out analysis using isotropic brush model, the grip margin was determined as functions of tire force and aligning torque. We assume quartic ground contact p...
KUMAZAWA Takuma, NISHIHARA Osamu
関西支部講演会講演論文集   2010(85) "7-13"   Mar 2010
T. Hiraoka; O. Nishihara; H. Kumamoto
Vehicle System Dynamics   47(10) 1205-1227   Oct 2009   [Refereed]
Redundancy in Vehicle Integrated Control and Real-Time Optimization
O. Nishihara
Proc. of First Japan-Korea Joint Symposium on Dynamcis and Control      Aug 2009
Nishihara Osamu, Nakajima Hajime, Noda Shintaro, Kurishige Masahiko
Dynamics & Design Conference   2009 "653-1"-"653-6"   Aug 2009
Relational expressions to estimate the grip margin of a tire have been derived. By carrying out analysis using isotropic brush model, the grip margin was determined as functions of tire force and aligning torque. We assume quartic ground contact p...
Nishihara Osamu, Shirota Ken, Kurishige Masahiko
Dynamics & Design Conference   2009 "655-1"-"655-6"   Aug 2009
In some types of active steering such as those based on D^* control, lateral acceleration feedback is required, while gravitational acceleration may affect their sensor outputs. The estimation of vehicle roll angle is essential to improve the mane...
O. Nishihara; M. Kurishige; Y. Sakatani
Review of Automotive Engineering   30(3) 299-306   Jul 2009   [Refereed]
NISHIHARA Osamu, SAKATANI Yusuke, NODA Shintaro, KURISHIGE Masahiko
Transactions of the Japan Society of Mechanical Engineers. C   75(753) 1516-1524   May 2009   [Refereed]
The present paper discusses the estimation of the road friction coefficient based on the brush model. This popular tire model is reanalyzed beginning from the conventional simple physical model, and intrinsic expressions are derived. The grip marg...
Nishihara Osamu, Noda Shintaro, Kurishige Masahiko
関西支部講演会講演論文集   2009(84) "14-3"   Mar 2009
KURISHIGE Masahiko, NISHIHARA Osamu, KUMAMOTO Hiromitsu
The Transportation and Logistics Conference   2008(17) 179-182   Dec 2008
This paper presents a new motor current control strategy for Electric Power Steering (EPS) to reduce current fluctuation. Such current fluctuation may cause undesirable steering torque ripple and acoustic noise, if an inexpensive microprocessor is...
Estimation of road friction coefficient based on brush model for optimization of tire force distribution in independent steering vehicle
NISHIHARA Osamu
Proc. of AVEC'08 The 9th International Symposium on Advanced Vehicle Control      Oct 2008   [Refereed]
Sliding mode D* controller for an active four-wheel steering vehicle with an optimized weighting factor
NISHIHARA Osamu
Proc. of MOVIC 2008 The International Conference on Motion and Vibration Control      Sep 2008   [Refereed]
Nishihara Osamu, Sakatani Yusuke, Kurishige Masahiko
Dynamics & Design Conference   2008 "533-1"-"533-6"   Sep 2008
The present paper discusses the estimation of the road friction coefficient based on the brush model. This popular tire model is reanalyzed beginning from the conventional physical model, following which intrinsic expressions are derived. The grip...
Nishihara Osamu, Noda Shintaro, Sakatani Yusuke, Kurishige Masahiko
Dynamics & Design Conference   2008 "537-1"-"537-6"   Sep 2008
A steering command from the driver to an active steering vehicle can be excessive, especially in lower road friction conditions. The present paper discusses protection functions for active steering vehicles. The grip margin is defined as the resid...
T. Hiraoka; O. Nishihara; H. Kumamoto
Review of Automotive Engineering   29(2) 287-294   Apr 2008   [Refereed]
NISHIHARA Osamu, SAKATANI Yusuke, KITANO Hiroaki, HIRAOKA Toshihiro, KUMAMOTO Hiromitsu
Transactions of the Japan Society of Mechanical Engineers. C   74(738) 250-258   Feb 2008   [Refereed]
The Meihan highway linking Kameyama in Mie Prefecture and Tenri in Nara Prefecture is one of most accident-prone areas in Japan. Representative accident factors that have been identified for the Meihan highway are chronic speeding and complex road...
Nishihara Osamu
The Transportation and Logistics Conference   2007(16) 229-232   Dec 2007
Optimizations of the lateral and longitudinal tire force distribution based on tire workload are investigated. In previous studies, we studied minimax optimizations of tire force distribution for several configurations of independent steering vehi...
Nishihara Osamu
Dynamics & Design Conference   2007 "405-1"-"405-6"   Sep 2007
Optimizations of the lateral and longitudinal tire force distributions based on tire workloads are investigated. In previous studies, the authors realized minimax optimizations for several configurations of independent steering vehicles; these wer...
KURISHIGE Masahiko, NISHIHARA Osamu, KUMAMOTO Hiromitsu
TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A   73(733) 2464-2472   Sep 2007   [Refereed]
This paper proposes a new Electric Power Steering (EPS) control strategy that enables improvement on steering-wheel returnability. If we use a conventional EPS controller, frictional loss torque in the steering mechanism reduces steering-wheel ret...
TANAKA Masaki, HIRAOKA Toshihiro, NISHIHARA Osamu, KUMAMOTO Hiromitsu, HATANAKA Kenichi, SAITO Hiroaki
Transactions of the Society of Automotive Engineers of Japan   38(5) 185-190   Sep 2007   [Refereed]
YAMABE Shigeyuki, KUMAMOTO Hiromitsu, NISHIHARA Osamu
Journal of Japan Society of Sports Industry   17(2) 1-12   2007   [Refereed]
This paper analyzes vertical and rotational responses of a bar float to a fish bite. The tackle consists of the float, a main line, a sinker, a hook line, subsinkers, and a hook. Float mass, float diameter, sinker mass, and inclination of float ar...
Effective assessment of night vision enhancement system based on driving simulator experiments
T. Hiraoka; M. Tanaka; O. Nishihara; H. Kumamoto; H. Saito; K. Hatanaka
14th World Congress on Intelligent Transport Systems, ITS 2007   4 2671-2678   2007   [Refereed]
HAYAMA Ryouhei, NAKANO Shirou, KUMAMOTO Hiromitsu, NISHIHARA Osamu
Journal of the Japan Society for Precision Engineering. Supplement. Contributed papers   72(11) 1374-1379   Nov 2006   [Refereed]
A SBW actuator that applied a conventional EPS motor turns out to yield a large delay of front wheel angle from steering wheel angle as compared with a conventional hydraulic PS. A new concept SBW using a double powered actuator on a lightweight v...
Minimax optimizations of tire workload exploiting complementarities between independent steering and traction/braking force distributions
NISHIHARA Osamu, KUMAMOTO Hiromitsu
Proc. of AVEC'06   713-718   Aug 2006   [Refereed]
KUMAMOTO Hiromitsu, OKABE Kohei, NISHIHARA Osamu, HIRAOKA Toshihiro
Journal of the Japan Society for Precision Engineering. Supplement. Contributed papers   72(8) 1040-1047   Aug 2006   [Refereed]
This paper extends a driver model called "maximum acceptable risk model" to consider explicitly a trade-off between accident reduction and travel time reduction under a situation which is either dangerous or safe. Three types of imperfect percepti...
YAMABE Shigeyuki, KUMAMOTO Hiromitsu, NISHIHARA Osamu
Journal of the Japan Society for Precision Engineering. Supplement. Contributed papers   72(7) 895-902   Jul 2006   [Refereed]
This paper analyzes a fishing tackle consisting of bar float, line, sinker, hook line, subsinkers, and hook. Three arrangements of the subsinkers attached to the hook line are considered: 1) free design without sub-sinkers, 2) equal design with a ...
YAMABE Shigeyuki, KUMAMOTO Hiromitsu, NISHIHARA Osamu
Journal of the Japan Society for Precision Engineering. Supplement. Contributed papers   71(11) 1448-1453   Nov 2005   [Refereed]
This paper considers a simple fishing tackle consisting of a line segment and a submerged sinker at the bottom end. A preliminary experiment confirms that, for a inclined cylinder, the fluid drag acts along a direction normal to the cylinder axis....
G. Zuo; H. Kumamoto; O. Nishihara; R. Hayama; S. Nakano
Reliability Engineering and System Safety   89(3) 241-247   Sep 2005   [Refereed]
KITANO Hiroaki, HIRAOKA Toshihiro, NISHIHARA Osamu, KUMAMOTO Hiromitsu, YAMADA Tetsuya
Dynamics and Design Conference   2005(9) 229-232   Aug 2005
Meihan highway is known as one of the worst accident frequent occurrence area in Japan. The representative accident factors in Meihan highway are a chronic overspeed and a complexity of the road shape such as sharp curves and sharp slope. There is...
TSUJI Masataka, NISHIHARA Osamu, HIRAOKA Toshihiro, KUMAMOTO Hiromitsu
Dynamics and Design Conference   2005(9) 233-238   Aug 2005
The present paper discusses the independent steering vehicle with direct yaw-moment control (DYC). Regarding the distribution of the driving/breaking force, the objective function is the maximum value of the tire workloads that is defined as the r...
Noguchi Kentaro, HIRAOKA Toshihiro, NISHIHARA Osamu, KUMAMOTO Hiromitsu, YAMADA Tetsuya
Dynamics and Design Conference   2005(9) 225-228   Aug 2005
The number of traffic accidents increases year by year, while the number of traffic deaths decreases. Meihan highway is known as one of the worst accident frequent occurrence area in Japan. The representative accident factors in Meihan highway are...
HIRAOKA Toshihiro, NISHIHARA Osamu, KUMAMOTO Hiromitsu
TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A   71(704) 1238-1246   Apr 2005   [Refereed]
The present paper discusses driving/braking force distributions of direct yaw moment control (DYC) to balance tire workloads effectively. The optimum distributions to minimize the maximum workload are derived in the form of simple algebraic expres...
Modeling of driver following behavior based on minimum-jerk theory
T. Hiraoka; T. Kunimatsu; O. Nishihara; H. Kumamoto
Intelligent Transportation Society of America - 12th World Congress on Intelligent Transport Systems 2005   4 1989-2000   2005   [Refereed]
Traffic accident human error quantification considering "yes-no" type and "unknown" type danger
H. Kumamoto; K. Okabe; T. Hiraoka; O. Nishihara
Intelligent Transportation Society of America - 12th World Congress on Intelligent Transport Systems 2005   3 1940-1951   2005   [Refereed]
Kumamoto Hiromitsu, Okabe Kohei, Nishihara Osamu, Hiraoka Toshihiro
Proceedings of JSPE Semestrial Meeting   2005(0) 747-748   2005
This paper shows a generalization of a cognitive human error model that is aimed for quantitative assessment of collision prevention devices as one of traffic accident countermeasures. The previously proposed model dealt with the false recognition...
Hayama Ryouhei, Nakano Shirou, Nishihara Osamu, Kumamoto Hiromitsu
Proceedings of JSPE Semestrial Meeting   2005(0) 615-616   2005
The maneuverability is affected by non–linear characteristics between the steering wheel and the road–wheel when a driver maneuvers the vehicle by a feedback control. We have investigated the non–linear characteristics by using a Steer–by–Wire (SB...
Yamabe Shigeyuki, Kumamoto Hiromitsu, Nishihara Osamu
Proceedings of JSPE Semestrial Meeting   2005(0) 613-614   2005   [Refereed]
It consider about fishing tackle with bar float. This paper presents responses for three patterns of secondary sinkers on the line between a main sinker and a hook. Various responses of a bar float to fish bites are animated and analyzed by a mult...
NISHIHARA Osamu, HIRAOKA Toshihiro, KUMAMOTO Hiromitsu
The Transportation and Logistics Conference   2004(13) 119-122   Nov 2004
In the present report, traction/braking force optimizations of independent four-wheel steering vehicles are introduced. The maximum value of the tire workloads are minimized by online execution of the golden section search method combined with the...
ZUO Guokun, KUMAMOTO Hiromitu, NISHIHARA Osumu, HAYAMA Ryouhei, NAKANO Shirou
Journal of the Japan Society for Precision Engineering. Supplement. Contributed papers   70(10) 1306-1310   Oct 2004   [Refereed]
A structural design was proposed in our previous study for a fault tolerant steer-by-wire (SBW) system consisting of a principal SBW, a standby SBW and a mechanical backup possibly with a power assist feature. The authors used fault trees, minimal...
HIRAOKA Toshihiro, NISHIHARA Osamu, KUMAMOTO Hiromitsu
Transactions of the Society of Automotive Engineers of Japan   35(4) 163-169   Oct 2004   [Refereed]
NISHIHARA Osamu, HIRAOKA Toshihiro, KUMAMOTO Hiromitsu
Dynamics & Design Conference   2004 "222-1"-"222-6"   Sep 2004
The present paper discusses the drivingbreaking force distribution for direct y aw-moment control (DYC) of the independent steering vehicle. The objective function is the maximum value of the tire workloads. In the case of conventional four wheel ...
KUMAMOTO Hiromitsu
材料とプロセス : 日本鉄鋼協会講演論文集 = Current advances in materials and processes : report of the ISIJ meeting   17(4)    Sep 2004
Model-following sliding mode control for active four-wheel steering vehicle
T. Hiraoka; O. Nishihara; H. Kumamoto
Review of Automotive Engineering   25(3) 305-313   Jun 2004   [Refereed]
Sideslip angle estimation and active front steering system based on lateral acceleration data at centers of percussion with respect to front/rear wheels
T. Hiraoka; H. Kumamoto; O. Nishihara
JSAE Review   25(1) 37-42   Jan 2004   [Refereed]
Fault tolerant design for X-by-wire vehicle
T. Hiraoka; S. Eto; O. Nishihara; H. Kumamoto
Proceedings of the SICE Annual Conference   2967-2972   2004   [Refereed]
OKABE Kohei, KUMAMOTO Hiromitsu, HIRAOKA Toshihiro, NISHIHARA Osamu
Journal of the Japan Society of Precision Engineering   69(11) 1625-1630   Nov 2003   [Refereed]
This paper proposes a quantitative model for description of driver behavior. Three results are introduced for perceptions of unsafe relations between the first and the second party vehicles at intersections; result y stands for existence of the re...
Nishihara Osamu, Eto S., Sakai A., Hiraoka T., Kumamoto H.
Dynamics and Design Conference   2003(8) 495-498   Oct 2003
The time lag of elderly driver is considerably longer than that of normal driver, and is recognized as a significant risk factor. We have studied safety measures using steer-by-wire steering controller. The influences of time lag to the closed-loo...
NISHIHARA Osamu, SAKAI Akihiko, ETO Shingo, HIRAOKA Toshihiro, KUMAMOTO Hiromitsu
Dynamics and Design Conference   2003(8) 499-502   Oct 2003
Telerobotics with bilateral control have recently been suggested or explored in space, subsea, micro environment, and handling of hazardous material. It is not difficult to develop such a teleoperation system using of the Internet as a bridge betw...
HIRAOKA Toshihiro, NISHIHARA Osamu, KUMAMOTO Hiromitsu
Transactions of the Institute of Systems, Control and Information Engineers   16(10) 520-530   Oct 2003   [Refereed]
The present paper proposes a four wheel steering (4WS) controller for path tracking by using sliding mode control theory. It is based on the advantage that front and rear wheel steering can be decoupled at the reference points, where are defined a...
K. Okabe; T. Hiraoka; O. Nishihara; H. Kumamoto
JSAE Review   24(4) 387-392   Oct 2003   [Refereed]
Nishihara Osamu, Kudo Yoshio, Hiraoka Toshihiro, Kumamoto Hiromitsu
Dynamics & Design Conference   2003 "154-1"-"154-6"   Sep 2003
Integration of traction/braking force distribution and active front steering is discussed. Based on an active front steering control to respond D^* command input by the driver, effects of traction/braking force distribution to generate direct yaw ...
ZUO Guokun, KUMAMOTO Hiromitu, NISHIHARA Osumu, NAKANO Shirou
Journal of the Japan Society of Precision Engineering   69(8) 1141-1146   Aug 2003   [Refereed]
A structural design is proposed for a fault tolerant steer-by-wire (SBW) system consisting of a principal and a standby SBW unit together with a manual backup. A fault tree is constructed for a top event, "complete loss of steering". Minimal cut s...
T. Asami; O. Nishihara
Journal of Vibration and Acoustics, Transactions of the ASME   125(3) 398-405   Jul 2003   [Refereed]
ASAMI Toshihiko, NISHIHARA Osamu
最適化シンポジウム講演論文集   2002(5) 319-326   Oct 2002
The dynamic vibration absorber (DVA) is a passive vibration control device which is attached to a vibrating body subjected to exciting force or motion. The design optimization of the DVAs has long been, and often still is, an interesting optimizat...
T. Asami; O. Nishihara
Journal of Vibration and Acoustics, Transactions of the ASME   124(4) 583-592   Oct 2002   [Refereed]
O. Nishihara; T. Asami
Journal of Vibration and Acoustics, Transactions of the ASME   124(4) 576-582   Oct 2002   [Refereed]
Nishihara Osamu, Kumamoto Hiromitsu
Dynamics and Design Conference : 機械力学・計測制御講演論文集 : D & D   2002(0)    Sep 2002
In this study, a predictive model for vehicle behavior based on the first order preview model is investigated. A feedback control scheme is derived for the lane following cruising independently to the vehicle dynamics. The driver model feedbacks t...
ASAMI Toshihiko, NISHIHARA Osamu
Dynamics and Design Conference : 機械力学・計測制御講演論文集 : D & D   2002(0)    Sep 2002
NAKANO Shirou, NISHIZAKI Katsutoshi, NISHIHARA Osamu, KUMAMOTO Hiromitsu
Transactions of the Society of Automotive Engineers of Japan   33(3) 121-126   Jul 2002   [Refereed]
KUMAMOTO Hiromitsu, NISHIHARA Osamu, HIRAOKA Toshihiro
Journal of the Japan Society of Precision Engineering   68(5) 681-686   May 2002   [Refereed]
This paper considers salt water fishing tackles consisting of line, hook, bar float, primary sinker and secondary sinkers. The line with the sinkers and the hook are modeled by a multi-link system connected with the float. A new algorithm is propo...
T. Asami; O. Nishihara; A.M. Baz
Journal of Vibration and Acoustics, Transactions of the ASME   124(2) 284-295   Apr 2002   [Refereed]
Nishihara Osamu
ダンピングシンポジウム   2002(2) 59-66   Jan 2002   [Invited]
The present paper reviews author's studies on the dynamic vibration absorber in light of distinctive design criteria. Firstly, the exact solution to the min-max optimization of resonance amplitudes is described. The fixed points theory is a well-k...
ASAMI Toshihiko, NISHIHARA Osamu
Transactions of the Japan Society of Mechanical Engineers. C   68(665) 76-83   Jan 2002   [Refereed]
The dynamic vibration absorber (DVA) is a passive vibration control device which is attached to a vibrating member (called a primary system) subjected to exciting force or motion. In this paper, we discuss an optimization problem of the three-elem...
T. Asami; O. Nishihara
Proceedings of SPIE - The International Society for Optical Engineering   4697 78-88   2002   [Refereed]
Vehicle stability control strategy for steer by wire system
M. Segawa; S. Nakano; O. Nishihara, H. Kumamoto
JSAE Review   22(4) 383-388   Oct 2001   [Refereed]
ASAMI Toshihiko, NISHIHARA Osamu
Dynamics and Design Conference : 機械力学・計測制御講演論文集 : D & D   2001    Aug 2001
Nishihara Osamu, Guokun Zuo, Nakano Shiro, Kumamoto Hiromitsu
Dynamics and Design Conference : 機械力学・計測制御講演論文集 : D & D   2001    Aug 2001
Bilateral interface for Steer-by-Wire vehicle is discussed. Haptic interface is considered as an effective system for the system, where vehicle state feedback to the driver will be realized through the reactive torque. In this study, a curvature c...
ASAMI Toshihiko, NISHIHARA Osamu, BAZ Amr M., KIMURA Fumiyoshi
Transactions of the Japan Society of Mechanical Engineers. C   67(655) 597-603   Mar 2001   [Refereed]
The objective of the H_2 optimization of the dynamic vibration absorbers (DVAs) is to minimize the vibration energy transmitted to the system from the source of excitation. In this optimization criterion, the squared area (called H_2-norm) under t...
Nishihara Osamu, Itoh Yoshihiro, Nakano Siroh, Kumamoto Hiromitsu
Dynamics and Design Conference : 機械力学・計測制御講演論文集 : D & D   2000    Sep 2000
This paper proposes a vehicle controller that provides desired response of yaw rate and lateral acceleration to the driver's input using a steer by wire system. The model following feedforward and two-degree-of-freedom controllers are designed bas...
NISHIHARA Osamu, SONODA Takayuki, OKADA Mafuyu, YASUDA Masashi, KUMAMOTO Hiromitsu, MATSUHISA Hiroshi
Dynamics and Design Conference : 機械力学・計測制御講演論文集 : D & D   2000    Sep 2000
The maximum magnifying power of surgical microscopes are usually set around 25,and then the microvibrations of operating room floors caused by air conditioners or nurses' walk are not always negligible. Namely, the vibrations of visual fields can ...

Books etc

 
Proceedings of the FISITA 2012 World Automotive Congress, Lecture Notes in Electrical Engineering, 198 LNEE
O.Nishihara, Y.Yoneima (Part:Contributor)
Springer   2013   
The Impact of Technology on Sport II, Proc. of APCST2007
S.Yamabe, H.Kumamoto, O.Nishihara (Part:Contributor, 537-543)
Taylor & Francis   2008   

Research Grants & Projects

 
Study on vehicle steering
Study on optimizations in vibration control
Study on intelligent transport system