Modeling and suppression of unbalanced radial force for in-wheel motor driving system

Deng, Zhaoxue; Li, Xu; Liu, Tianqin; Zhao, Shuen

doi:10.1177/10775463211026041

Cited by 11 publications

(5 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…To suppress the negative airgap eccentricity effect for in-wheel motor driving system, the existing research mainly focused on the active suspension, the multi-objective optimization and driving control [22][23][24]. Active suspension can improve ride comfort and handling stability performance for EV [25], but the increase of unsprung mass will reduce the mechanism stability of driving system.…”

Section: Introductionmentioning

confidence: 99%

Mechanism analysis and optimum control of negative airgap eccentricity effect for in-wheel switched reluctance motor driving system

Deng

Li²,

Li³

et al. 2023

Nonlinear Dyn

Self Cite

View full text Add to dashboard Cite

This paper analyzes the generation and influence mechanism of negative airgap eccentricity effect for in-wheel switched reluctance motor (SRM) driving system, and proposes an optimum control strategy to achieve cooperative optimal performance between in-wheel motor driving system and electric vehicle (EV). Firstly, the electromagnetic characteristic of SRM under airgap eccentricity is studied based on electromagnetic coupling model and circuit driving equation. Then, the negative effect of airgap eccentricity on the in-wheel SRM driving system is analyzed in timefrequency domain combined on the excitation characteristics of unbalanced radial force. Finally, an independent current chopping control strategy for in-wheel SRM driving system based on vehicle vibration feedback is proposed, and the controller parameters are optimized by interpolation. The simulation results show that the proposed optimum control strategy can improve the driving torque while restrain the unbalanced radial force, and effectively suppress the negative airgap eccentricity effect of in-wheel motor driving system. This study starts from the dynamics relationship between SRM, in-wheel motor driving system and EV, and lays a theoretical foundation for solving the negative dynamic effect of in-wheel motor driving system.

show abstract

Section: Introductionmentioning

confidence: 99%

Mechanism analysis and optimum control of negative airgap eccentricity effect for in-wheel switched reluctance motor driving system

Deng

Li²,

Li³

et al. 2023

Nonlinear Dyn

Self Cite

View full text Add to dashboard Cite

show abstract

“…However, due to the special driving mode of in-wheel motor, the unsprung mass of the vehicle increases and the ride comfort of the vehicle is reduced [1]. Moreover, unbalanced electromagnetic force is generated due to the change of air gap between the stator and the rotor of the in-wheel motor when vehicle driving on the uneven road, which further deteriorates the ride comfort of the vehicle [2]. Therefore, how to reduce the impact of the increase of unsprung mass and the unbalanced electromagnetic force caused by the change of air gap on vehicle ride comfort is an urgent problem should be solved.…”

Section: Introductionmentioning

confidence: 99%

Design and parameter optimization of a new type in-wheel motor drive electric vehicle vibration reduction system

Li,

Kang,

Deng

2023

J. vibroeng.

View full text Add to dashboard Cite

In order to reduce the problem of unsprung mass increased caused by using of in-wheel motor, resulting in poor ride comfort of in-wheel motor drive (IWMD) electric vehicle. A new type in-wheel motor drive electric vehicle vibration reduction system is designed based on the special structure of axial flux motor, and the stator of axial flux motor is suspended by rubber bushing and stator suspension. Then the effectiveness of the designed IWMD electric vehicle vibration reduction system is verified by simulation analysis. The parameters of the designed IWMD electric vehicle vibration reduction system is optimized by orthogonal experiment to further improve which vibration reduction performance, and the optimal parameters scheme of the designed IWMD electric vehicle vibration reduction system is determined by comparative simulation analysis.

show abstract

“…Mizumoto et al (2015) designed a new type of active hydrodynamic bearing, which provided active control force through piezoelectric ceramic extruding elastic material, and verified the effectiveness of this method through experiments. Deng et al (2021) proposed an optimization method that can suppress the radial electromagnetic force fluctuation and unbalanced radial force amplitude value, and the negative effect of vertical dynamics of the in-wheel motor driving system is conspicuously mitigated. Ghazavi and Sun (2017) analyzed the vibration of the rotor system from the aspects of the unbalanced mass of the rotor and the geometric coupling of the rotor.…”

Section: Introductionmentioning

confidence: 99%

Unbalanced vibration suppressing for aerostatic spindle using sliding mode control method and piezoelectric ceramics

Chen

Zhang

Wang

et al. 2023

Journal of Vibration and Control

View full text Add to dashboard Cite

The lubricating medium of the aerostatic spindle is gas, with relatively low rigidity, which is easy to cause rotor offset and additional vibration under the action of external load, thus affecting the processing accuracy of the spindle. To solve the problem of unbalanced vibration of the spindle, a new type of controllable radial aerostatic bearing is designed by combining piezoelectric ceramics, which use the inverse piezoelectric effect of piezoelectric ceramics to squeeze the air film to produce corresponding control force, and the radial unbalanced vibration of the spindle is suppressed. A bearing–rotor–piezoelectric ceramic coupling model was established, and the control method of feedforward combined with feedback was used to reduce the hysteresis characteristics of piezoelectric ceramics. On this basis, the sliding mode controller of the entire system, and through research, it is found that the sliding mode controller based on the extended observer has the best vibration suppression effect compared with other sliding mode controllers in the article; this research results can improve the rotation accuracy of the spindle system and the machining accuracy of ultra-precision machine tools.

show abstract

Modeling and suppression of unbalanced radial force for in-wheel motor driving system

Cited by 11 publications

References 26 publications

Mechanism analysis and optimum control of negative airgap eccentricity effect for in-wheel switched reluctance motor driving system

Mechanism analysis and optimum control of negative airgap eccentricity effect for in-wheel switched reluctance motor driving system

Design and parameter optimization of a new type in-wheel motor drive electric vehicle vibration reduction system

Unbalanced vibration suppressing for aerostatic spindle using sliding mode control method and piezoelectric ceramics

Contact Info

Product

Resources

About