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후진시의 전방 추돌 방지를 위한 조향 보조 시스템 개발
노윤갑(Yoonkab Noh),최세범(Seibum Choi) 한국자동차공학회 2013 한국자동차공학회 부문종합 학술대회 Vol.2013 No.5
In this paper, an active front steering(AFS) algorithm for preventing front collision on low reverse speed is proposed. Whenever a driver wants a car to be pulled out from a parking lot by going reverse, it is hard to determine whether a front part of a vehicle will collide with another side vehicle. When it comes to a vehicle with long nose, the driver should be careful not to apply a large amount of steering which will cause a collision with another side vehicle. The driver will be also distracted by concentrating vehicle’s rear part when going reverse. Proposed algorithm uses an ultrasonic sensor installed on the front side of a vehicle which estimates the distance from a side vehicle, calculates optimal steering angle which will not cause to collide with a side vehicle and limits the driver’s steering. Also, by continuously calculating the amount of steer limit value, proposed algorithm aids a driver to optimally turn the vehicle, meaning that a vehicle to be turned with minimal turning radius. The simulation has been performed by using CARSIM which is well known as a vehicle dynamic simulator to verify the effectiveness of the proposed AFS algorithm in common parking lot environments.
최종훈(Jonghoon Choi),김병주(Byungjoo Kim),김영재(Youngjae Kim),김형진(Hyungjin Kim),노윤갑(Yoonkab Noh),임동훈(Donghun Lim),정인용(Inyong Jung),정성기(Sungki Jung) 한국자동차공학회 2022 한국자동차공학회 부문종합 학술대회 Vol.2022 No.6
The electronically controlled suspension with road preview is a system that recognizes a road shape in advance by using a front camera and navigation information. This system performs appropriate suspension control according to a type of road in front. When passing through the speed bump, the suspension control output is calculated according to the vehicle speed and the vehicle motion estimated by the acceleration sensor, and the same control performance is always achieved under the same driving conditions. However, riding comfort cannot be defined as one thing because there is a difference in what people feel. This study began with the consideration of how to reflect individual driver tendencies in suspension control in order to achieve better ride comfort.