Steering energy optimisation strategy of steer-by-wire system with dual-motor
by An Wang; Chunyan Wang; Han Zhang; Wanzhong Zhao
International Journal of Vehicle Design (IJVD), Vol. 85, No. 2/3/4, 2021

Abstract: In order to improve the fault-tolerant ability of steer-by-wire (SBW) system, a dual-motor structure is introduced. It can improve the system reliability and the steering safety. However, the redundant motor will change steering energy consumption. Therefore, a dual-motor coupling steering (DMCS) strategy is proposed to minimise steering energy while maintaining steering stability. DMCS strategy contains two layers, namely an upper stability controller and a lower energy optimisation controller. First of all, stability controller is designed to ensure the operational stability under external interference and model uncertainty. Then, the instantaneous overall efficiency is optimised based on the working point between motors and the operating principles of energy optimisation controller in various modes are analysed and designed. Lastly, simulations by Matlab and Prescan demonstrate that DMCS strategy can satisfy the stability demands at different steering conditions and realise the optimal allocation of energy between motors, thereby improving energy utilisation efficiency.

Online publication date: Wed, 19-Jan-2022

The full text of this article is only available to individual subscribers or to users at subscribing institutions.

 
Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.

Pay per view:
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.

Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Vehicle Design (IJVD):
Login with your Inderscience username and password:

Username:        Password:          Forgotten your password?

Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.

If you still need assistance, please email subs@inderscience.com