This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Virtual Occupant Model with Active Joint Torque Control for Muscular Reflex
Technical Paper
2018-01-1316
ISSN: 0148-7191, e-ISSN: 2688-3627
This content contains downloadable datasets
Annotation ability available
Sector:
Language:
English
Abstract
Riding comfort on the seat is one of the important factors for vehicle comfort. To analyze riding comfort, there were some models for predicting human vibrations in the past studies. On the other hand, it is strongly affected by human body motion caused by vehicle excitation during driving especially low frequency, but it is difficult to predict human motion due to an unclear mechanism of muscle reflex. The purpose of this study is to construct virtual riding comfort testing simulation based on virtual prototyping of the seat. In this study, a virtual occupant model that predicts occupant motion on the seat against external excitation including muscle reflex for maintaining sitting posture constructed. The whole body was modeled as 15 segments biomechanical model (1D) with wobbling mass. Each joint has passive elastic torque and damping torque springs. Human body surface was modeled as rigid shape. The muscle reflex modeled as active joint torque with PID control for maintaining posture. Intrinsic, such as elastic spring forces that connect wobbling mass in the abdominal cavity, and extrinsic parameters, such as active torque control gain, were determined by 2 step optimization process for fit measured data for calibrating. Whole body model and seat FE model (3D) with excitation calculated at the same time to make it possible to predict human body motion on the seat. As the results of validations, simulated results were well agreed with measurement data of subjects on the conditions of translational excitations. And, further development issues and visions were discussed.
Recommended Content
Authors
Citation
Hirao, A., Choi, H., Han, M., and Matsuoka, H., "Virtual Occupant Model with Active Joint Torque Control for Muscular Reflex," SAE Technical Paper 2018-01-1316, 2018, https://doi.org/10.4271/2018-01-1316.Data Sets - Support Documents
| Title | Description | Download |
|---|---|---|
| Unnamed Dataset 1 | ||
| Unnamed Dataset 2 | ||
| Unnamed Dataset 3 | ||
| Unnamed Dataset 4 | ||
| Unnamed Dataset 5 | ||
| Unnamed Dataset 6 | ||
| Unnamed Dataset 7 | ||
| Unnamed Dataset 8 | ||
| Unnamed Dataset 9 | ||
| Unnamed Dataset 10 | ||
| Unnamed Dataset 11 | ||
| Unnamed Dataset 12 | ||
| Unnamed Dataset 13 | ||
| Unnamed Dataset 14 |
Also In
References
- Tamaki , Y. , Irie , M. , Yoshida , K. , and Ishige , A. Experimental Technique for Improving Riding Comfort of Seats Using Six-Degree-Of-Freedom Vibration Exciter Nissan Technical Review 77 15 18 2015 (in Japanese)
- Higashiyama , T. , Nakano , K. , Ohori , M. , and Zheng , R. Correlation between Seat Stiffness Distribution and Ride Comfort Responding to Lateral Acceleration of a Vehicle Proceedings of 21th JSME Transportation and Logistics Conference (TRANSLOG2012) 2012
- Toyama , M. , Kaneko , T. , Osakabe , T. , Hada , M. , and Yasuda , E. An Influence Analysis of Seat Performance on Vehicle Controllability Proceedings of JSAE Annual Conference 144-11 23 26 2011 (in Japanese)
- Rosen , J. and Arcan , M. Modeling the Human Body/Seat System in a Vibration Environment, Transactions of ASME Journal of Biomechanical Engineering 125 April 223 231 2003
- Kanke , T. , Yoshimura , T. , Kato , K. , Kitazaki , S. , and Tamaoki , G. Development of the Passenger-Seat Combined Model Seated on a Vehicle Seat JSME Dynamics and Design Conference 2006 Proceedings 2006
- Tamaoki , G. , Nakamura , S. Yoshimura , T. , and Kato , K. Modeling of Seated Human in Car Seat (Modeling of Driver and Passenger) JSME Dynamics and Design Conference 2016 Proceedings USB 2016
- Verner , M.M. and van Hoof , J. Determination of Human-Seat-Interaction in Vertical Vibrations in MADYMO SAE Technical Paper 2002-01-3083 2002 10.4271/2002-01-3083
- Hada , M. , Yasuda , E. , Kobayashi , T. , Sugawara , T. , Ono , E. An Inverse Analysis Method of Driver-Seat-Steering System Using Multibody Dynamics Proceedings of JSAE Annual Conference 75-11 1 6 2011
- Yamada , K. , Motojima , H. , Kitagawa , Y. Yasuki , T. , Investigation of Relations between Occupant Kinematics and Supporting by the Seat in Lane Change Maneuvers Proceedings of JSAE Annual Conference (Spring) 941-946 2016
- Cheng , H. , Obergefell , L. , and Rizer , A. Generator of Body Data (GEBOD) , Manual., Air Force Materiel Command Wright-Patterson Air Force Base 1994
- Cheng , H. , Obergefell , L. , and Rizer , A. The Development of the GEBOD Program, Proceedings of the 1996 Fifteenth Southern Biomedical Engineering Conference 251 254 1996
- Kim , Y. , Baek , K. , and Choi , J. Development of Human Body Vibration Model Including Wobbling Mass Transactions of the KSAE 10 2 193 200 2002
- Choi , H. Y. , Han , M. , Lee , W. , Matsui , T. , and Matsuoka , H. Active Elbow Joint Model Proceedings of the 1st Japanese Modelica Conference 2016 50 54
- Han , M. and Choi , H.Y. Elbow Joint Model with Active Muscle Force Journal of Mechanical Science and Technology 30 20 5847 5853 2016
- Kim , S. , Hwang , S. , Lee , K. , Pyun , J. , Choi , H.Y. , Kim , K. , Sah , S. , Montmayeur , N. New Anthropometry of Human Body Models for Riding Comfort Simulation 2007-01-2457 2007 10.4271/2007-01-2457
- SAE Standard J-4002 H-Point Machine (HPM-II) Specifications and Procedure for H-Point Determination-Auditing Vehicle Seats 2010