Semi-Active Control of ISD In-Wheel Motors Suspension with Dynamic Vibration Absorber

Electric vehicles driven by in-wheel-motor have the advantages of compact structure and high transmission efficiency, which is one of the most ideal energy-saving, environmentally friendly, and safe driving forms in the future. However, the addition of the in-wheel-motor significantly increases the unsprung mass of the vehicle, resulting in a decrease in the mass ratio of the vehicle body to the wheel, which will deteriorate the ride comfort and safety of the vehicle. To improve the vibration performance of in-wheel-motor driven vehicles, a semi-active inerter-spring-damper (ISD) suspension with in-wheel-motor (IWM) dynamic vibration absorber (DVA) of the electric wheel is proposed in this paper. Firstly, a structure of in-wheel-motor DVA is proposed, which converts the motor into a dynamic vibration absorber of the wheel to suppress the vibration of the unsprung mass. Secondly, based on a damper-inerter integrated device, a tandem ISD suspension was introduced into the electric vehicle. Then, an improved Sky-Hook (ISH) semi-active controller of ISD suspension is designed. Compared with the passive suspension, the semi-active ISD suspension with DVA proposed can significantly reduce the vibration of the vehicle body in a wide range of frequencies. Meanwhile, the road adhesion of the vehicle is also improved greatly. It can be concluded that the proposed semi-active suspension with DVA can effectively improve the ride comfort of the vehicle driven by in-wheel-motor.

• Record URL:
  • https://doi.org/10.4271/2022-01-0285
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/01487191
• Supplemental Notes:
  • Abstract reprinted with permission of SAE International.
• Authors:
  • Zhang, Kaidi
  • Wu, Jinglai
  • Zhang, Yunqing
• Conference:
  • WCX SAE World Congress Experience
  • Location: Detroit & Online Michigan, United States
  • Date: 2022-4-5 to 2022-4-7
• Publication Date: 2022-3-29

Language

• English

Media Info

• Media Type: Web
• Features: References;
• Serial:
  • SAE Technical Paper
  • Publisher: Society of Automotive Engineers (SAE)
  • ISSN: 0148-7191
  • EISSN: 2688-3627
  • Serial URL: http://papers.sae.org/

Subject/Index Terms

• TRT Terms: Comfort; Electric vehicles; Riding qualities; Suspension systems; Transmissions; Vibration; Wheels
• Subject Areas: Highways; Vehicles and Equipment;

Filing Info

• Accession Number: 01841676
• Record Type: Publication
• Source Agency: SAE International
• Report/Paper Numbers: 2022-01-0285
• Files: TRIS, SAE
• Created Date: Apr 6 2022 2:18PM