scholarly journals Modal Analysis of In-Wheel Motor-Driven Electric Vehicle Based on Bond Graph Theory

2017 ◽  
Vol 2017 ◽  
pp. 1-9 ◽  
Author(s):  
Di Tan ◽  
Qiang Wang ◽  
Yanshou Wu
Keyword(s):  
Graph Theory ◽  
Modal Analysis ◽  
Electric Vehicle ◽  
Graph Model ◽  
Deformation Mode ◽  
Bond Graph ◽  
Modular Modeling ◽  
Vibration Model ◽  
Momentum Mode ◽  
Bond Graph Theory

A half-car vibration model of an electric vehicle driven by rear in-wheel motors was developed using bond graph theory and the modular modeling method. Based on the bond graph model, modal analysis was carried out to study the vibration characteristics of the electric vehicle. To verify the effectiveness of the established model, the results were compared to ones computed on the ground of modal analysis and Newton equations. The comparison shows that the vibration model of the electric vehicle based on bond graph theory not only is able to better compute the natural frequency but also can easily determine the deformation mode, momentum mode, and other isomorphism modes and describe the dynamic characteristics of an electric vehicle driven by in-wheel motors more comprehensively than other modal analysis methods.

Research on Modeling of EPS with Bond-Graph Theory and Simulating of Steering Maneuverability

2011 ◽  
Vol 464 ◽  
pp. 736-740
Author(s):  
Jian Tang ◽  
Hao Bin Jiang ◽  
Guo Qing Geng ◽  
Nian Wen Xue
Keyword(s):  
Graph Theory ◽  
Control Method ◽  
Graph Model ◽  
Steering System ◽  
Bond Graph ◽  
Simulation Research ◽  
Power Steering ◽  
Electric Power Steering System ◽  
P Type ◽  
Bond Graph Theory

As a tool of modeling the system of multiple energy, bond-graph theory is applied to the modeling for electric power steering system which is electromechanical hybrid. Bond graph models for C type, P type and R type of EPS dynamic system are built respectively. The CH7140 type of car equipped with C type EPS is taken as a prototype and its maneuverable performance is simulated under typical working conditions. A PID control method with time delay transfer function is adopted to imitate the driver’s operation. Steering maneuverability test of the CH7140 car is conducted. The simulation result is consistent with the test result. It is shown that the bond-graph model of EPS is rational, and simulation model derived from bond-graph is effective which can be applied to EPS and full vehicle steering maneuverability simulation research.

Dynamic characteristics and energy consumption modelling of machine tools based on bond graph theory

Energy ◽  
2020 ◽  
Vol 212 ◽  
pp. 118767
Author(s):  
Wei Liu ◽  
Li Li ◽  
Wei Cai ◽  
Congbo Li ◽  
Lingling Li ◽  
...  
Keyword(s):  
Graph Theory ◽  
Energy Consumption ◽  
Dynamic Characteristics ◽  
Machine Tools ◽  
Bond Graph ◽  
Bond Graph Theory

Structural Simplification of Modular Bond-Graph Models Based on Junction Inactivity

2006 ◽  
Author(s):  
Tulga Ersal ◽  
Hosam K. Fathy ◽  
Jeffrey L. Stein
Keyword(s):  
Graph Model ◽  
Bond Graph ◽  
General Purpose ◽  
Graph Models ◽  
Modular Modeling ◽  
System Models ◽  
Modeling Paradigm ◽  
Component Models ◽  
Domain Independent ◽  
Structural Simplification

The modular modeling paradigm facilitates the efficient building, verification and handling of complex system models by assembling them from general-purpose component models. A drawback of this paradigm, however, is that the assembled system models may have excessively complex structures for certain purposes due to the amount of detail of the component models, which is introduced to promote modularity. This work presents a domain-independent structural simplification technique that can detect such unnecessary complexities in a modular bond-graph model and eliminate them from the model without compromising accuracy. To this end, the activity concept in the literature is extended to define "inactivity" for junction elements, and simplification is obtained by detecting and eliminating inactive junction elements and by propagating the implications. It is shown that this simple idea can result in models that are conceptually and computationally more efficient. Some subtleties associated with this approach are highlighted.

scholarly journals Modeling and Simulation of the Vibration Characteristics of the In-Wheel Motor Driving Vehicle Based on Bond Graph

2016 ◽  
Vol 2016 ◽  
pp. 1-14 ◽  
Author(s):  
Di Tan ◽  
Qiang Wang
Keyword(s):  
Modeling And Simulation ◽  
Bond Graph ◽  
Vibration Characteristics ◽  
Simplified Model ◽  
Modeling And Analysis ◽  
Vibration Model ◽  
Class B ◽  
Before And After ◽  
Driving Condition ◽  
Bond Graph Theory

Bond graph theory is applied to the modeling and analysis of the vibration characteristics of the in-wheel motor driving vehicle. First, an 11-degree-of-freedom vibration model of the in-wheel motor driving vehicle is established based on bond graph, and then the correctness of the model is verified. Second, under the driving condition of class B road excitations and a speed of 50 Km/h, the vibration characteristics of the in-wheel motor driving vehicle are simulated and analyzed, and the activity of each part in the system is then calculated. Third, these parts that have less of an effect on the vibration characteristics of an in-wheel motor driving vehicle are identified according to the magnitude of the activity, and then the model is simplified by removing these parts. Finally, the reliability of the simplified model is verified by comparing the vibration characteristics of the model before and after simplification. This study can provide a method for the modeling and simulation of the vibration characteristics of the in-wheel motor driving vehicle.

Bibliography of bond graph theory and application

1991 ◽  
Vol 328 (5-6) ◽  
pp. 1067-1109 ◽  
Author(s):  
P.C. Breedveld ◽  
R.C. Rosenberg ◽  
T. Zhou
Keyword(s):  
Graph Theory ◽  
Bond Graph ◽  
Bond Graph Theory
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