A Novel Electric-Power-Steering (EPS) Control Algorithm Development for the Reference Steering Feel Tracking

Paper #:
  • 2016-01-1546

Published:
  • 2016-04-05
DOI:
  • 10.4271/2016-01-1546
Citation:
Lee, D., Jang, B., Yi, K., Chang, S. et al., "A Novel Electric-Power-Steering (EPS) Control Algorithm Development for the Reference Steering Feel Tracking," SAE Technical Paper 2016-01-1546, 2016, doi:10.4271/2016-01-1546.
Pages:
8
Abstract:
This paper describes a reference steering feel tracking algorithm for Electric-Power-Steering (EPS) system. Development of the EPS system with intended steering feel has been time-consuming procedure, because the feedforward map-based method has been applied to the conventional EPS system. However, in this study, a three-dimensional reference steering feel surface, which is determined from current vehicle states, is proposed. In order to track the proposed reference steering feel surface, sliding mode approach is applied to second-order steering dynamics model considering a coulomb friction model. An adaptive technique is utilized for robustness against uncertainties. In order to validate the proposed EPS control algorithm, hardware-in-the-loop simulation (HILS) has been conducted with respect to a typical steering test. It is shown that the reference steering feel is realized well by the proposed EPS control algorithm.
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