Analysis of the electric wheel vibration reduction system of a wheel-hub motor-driven vehicle

Abstract

Based on the principle of multi-stage vibration isolation and active vibration absorption, a multi-stage passive vibration-isolating system and active motor vibration-absorbing system are designed for the electric wheel system of wheel-hub motor-driven electric vehicle, and the 1/4 suspension structural diagrams of the two vibration-isolating systems are drawn. Secondly, the corresponding multi-degrees-of-freedom vertical vibration model is established according to the different structural diagrams, and the dynamic differential equation of the multi-degrees-of-freedom vibration system is deduced. Then, by programming the MATLAB software is used to solve the acceleration of the vehicle body, the dynamic deflection of the suspension spring, and the amplitude, and the frequency characteristic curve of the relative dynamic load of the wheel of the 1/4 suspension system are drawn and the results are compared and analyzed. Finally, the ADAMS software is used for remodeling; the simulation experiment of ADAMS multi-body dynamics verified the correctness of the theoretical results of MATLAB software. The results show that the ADAMS simulation experiment results are consistent with the MATLAB theoretical results, and their correctness is verified. The vibration isolation effect of the active vibration-absorbing system is better and can improve the riding comfort and safety of the vehicle; hence it is worth popularizing and drawing.

Keywords

Wheel-hub motor electric vehicle vibration isolation riding comfort safety

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References

de Santiago

Bernhoff

Eriksson

et al.

Electrical motor drivelines in commercial all-electric vehicles: A review. IEEE Trans Veh Technol 2012; 61: 475–484.

Sun YC, Li M and Liao C. Analysis of wheel hub motor drive application in electric vehicles. MATEC Web of Conferences, v 100, March 8, 2017. In: 13th Global Congress on Manufacturing and Management, GCMM 2016.

Chen

Wang

. Design and evaluation on electric differentials for overactuated electric ground vehicles with four independent in-wheel motors. IEEE Trans Veh Technol 2012; 61: 1534–1542.

Prabhu

Chandrasekar

Karthikeyan

et al.

Vibration and thermal analysis of switched reluctance hub motor. Eur J Scient Res 2012; 68: 12–20.

Jin

Zhang

Peng

Z-C

et al.

Four hub-motor-in-wheels drive electric vehicle modeling and simulation. China J Highway Transp 2016; 29: 138–144.

Shimizu

. Transportation and safety in Japan: Multi-purpose electric vehicle “KAZ”. Int Assoc Traffic Safety Sci 2001; 25: 96–97.

Liu

Zhang

Wang

. Study on influence of non-sprung weight on vehicle riding comfort. J Beijing Inst Technol 2014; 12: 177–181.

Jin

L-q

Song

C-x

Wang

Q-n

. Evaluation of influence of motorized wheels on contact force and comfort for electric vehicle. J Comput 2012; 6: 497–505.

Jin

. Study on the ride comfort of vehicles driven by in-wheel motors. Adv Mech Eng 2016; 3: 1–9.

10.

Zhong

Yang

et al.

Vertical vibration of in-wheel motor electric vehicles based on active suspension control. J Vib Shock 2017; 36: 242–247.

11.

Chiu

J-T

Fang

C-C

. Soft computing technologies in design of fuzzy controller for active vibration isolation systems. J Marine Sci Technol 2016; 24: 519–529.

12.

Sun

Huang

et al.

Vibration effect and control of in-wheel switched reluctance motor for electric vehicle. J Sound Vib 2015; 338: 105–120.

13.

Aziz

Ziya

. Analysis of the vertical vibration effects on ride comfort of vehicle driver. J Vibroeng 2012; 14: 559–571.

14.

Igor

Tomasz

. Method of selecting vibro-isolation properties of vibration reduction systems. J Mech Sci Technol 2016; 30: 1497–1505.

15.

et al.

Active low-frequency vertical vibration isolation system for precision measurements. Chinese J Mech Eng 2017; 30: 164–169.