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The Curvature Control For A EV to Follow A Neutral Steering Path Regardless of Velocity

Title
The Curvature Control For A EV to Follow A Neutral Steering Path Regardless of Velocity
Authors
장영진
Date Issued
2014
Publisher
포항공과대학교
Abstract
This paper presents the new curvature control of the EV with new curvature parameter. In previous researches, the direct yaw-moment (DYC) control is proposed to increase the stability of the vehicle, but maneuverability has not been discussed sufficiently. The car handling condition which is called the index parameter of maneuverability is dependent on the vehicle velocity. To achieve the desired vehicle’s cornering path, the car handling condition must be considered sufficiently. To control the cornering path, the curvature in real time must be measured. In this paper, We proposed the new curvature parameter for the curvature control system by using a cheep IMU sensor. By using the new parameter, curvature method is proposed which gives the car handling condition regardless of the longitudinal speed. The proposed controller is based on the PI controller to feedback the curvature parameter. The controlled system shows the advantages of DYC regarding to the reference trajectory by the dual motor system. With respect to the uncontrolled model, the effectiveness of the proposed method is validated by numerical examples.
URI
http://postech.dcollection.net/jsp/common/DcLoOrgPer.jsp?sItemId=000001742430
http://oasis.postech.ac.kr/handle/2014.oak/2328
Article Type
Thesis
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