Independent Control of Steering Force and Wheel Angles to Improve Straight Line Stability

Paper #:
  • 2014-01-0065

Published:
  • 2014-04-01
DOI:
  • 10.4271/2014-01-0065
Citation:
Taniguchi, H., Kimura, T., Takeda, Y., Suzuki, T. et al., "Independent Control of Steering Force and Wheel Angles to Improve Straight Line Stability," SAE Technical Paper 2014-01-0065, 2014, doi:10.4271/2014-01-0065.
Pages:
6
Abstract:
This paper describes a control method to improve straight-line stability without sacrificing natural steering feel, utilizing a newly developed steering system controlling the steering force and the wheel angle independently. It cancels drifting by a road cant and suppresses the yaw angle induced by road surface irregularities or a side wind. Therefore drivers can keep the car straight with such a little steering input adjustment, thus reducing the driver's workload greatly.In this control method, a camera mounted behind the windshield recognizes the forward lane and calculate the discrepancy between the vehicle direction and the driving lane. This method has been applied to the test car, and the reduction of the driver's workload was confirmed.This paper presents an outline of the method and describes its advantages.
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