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논문 기본 정보

자료유형
학술저널
저자정보
저널정보
한국자동차공학회 한국자동차공학회논문집 자동차공학회논문집 제4권 제6호
발행연도
1996.11
수록면
39 - 51 (13page)

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초록· 키워드

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In the turning maneuver of the vehicle, its motion is mainly dependent on the genuine steering characteristics(under steer, neutral steer, and over steer). General automobile has an under steer characteristics in view of the directional stability for stable turning ability. The under steer vehicle has an ability to maintain its own directional performance for unknown external disturbances to some extent. From a few years ago, in order to acquire the more enhanced handling performance, some types of four wheel steering vehicle were considered and constructed. And, various rear wheel control logics were developed and tested for the above nmentioned background. But, a more robust control logic for external disturbances has not been suggested. For this reason, in this paper, a more enhanced control logic for the four wheel steering vehicle is suggested. The proposed rear wheel control logic is based on the yaw rate feed back type and is slightly modified by an yaw rate tuning factor for more stable turning performance. And an external disturbance is defined as a motivation of the additional yaw rate in the center of gravity by an uncertain input. In this study, an external disturbance is applied to the vehicle as a form of the additional yawing moment. Finally, the proposed rear wheel control logic is tested on the multi-body analysis software(ADAMS). J-turn and double lane change test are performed for the validation of the control logic.

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ABSTRACT

1. 서론

2. 후륜 조향 제어 로직

3. 제어 로직 검증을 위한 전체 차량 모델

4. 동적 반응 해석

5. 결론

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