• 한국자동차공학회논문집
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• 제6권2호
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• pp.107-117
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• 1998

As the traffic congestion and parking problems in urban areas are increased the tall and narrow commuter vehicles have interested as a means to increase the utilization of existing freewa- ys and parking facilities. However, in hard cornering those vehicles could reduce stability against overturning compared to conventional vehicles. This tendency can be mitigated by tilting the body toward the inside of the turn. In this paper those tilting vehicles are considered in which at speed at least, the tilt angle is controlled by steering the front wheels. In other word, if the driver turns the steering wheel the tilt controller automatically steers the road wheel to tilt the body inside of the turn. Also, the dynamic tilting vehicle model with tire slip angles is constructed by adding the roll degree of freedom. Finally, through computer simulation the behaviors of the tilting vehicles are investigated.

• 융합신호처리학회논문지
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• 제2권2호
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• pp.103-110
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• 2001

기존 도로시설과 주차시설의 이용율을 높이기 위해 높이가 높고 폭이 좁은 차량의 이용에 관심이 증대되고 있다. 그러나 이러한 종류의 차량은 선회시 안쪽으로 기울어짐으로 안정도 문제가 중요하다. 직접 기울임 제어 방법과 스티어링 기울임 제어 방법이 폭이 좁은 차량의 안정도를 위해 제안되고 있다. 본 논문에서는 직접 기울임 제어법과 스티어링 기울임 제어법의 장점을 이용한 새로운 제어법을 제안한다. 즉 서로 상반된 제어 특징을 갖는 두 제어 법을 스위칭 제어 방식으로 제어하게 되며, 제안된 제어기의 원활한 스위칭 전환을 위해 적당한 제어이득이 제안된다.

• 한국자동차공학회논문집
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• 제12권6호
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• pp.166-174
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• 2004

In urban area narrow commuter vehicles have attracted interest as a possible solution to reduce traffic congestion and parking problems. However, a narrow vehicle has an increased to overturn during hard cornering when compared to conventional vehicles. This tendency can be reduced by tilting it toward the inside of the turn. Two types of automatic tilting control systems which are Direct Tilt Control(DTC) and Steering Tilt Control(STC) have been developed. In this paper as one of the technique to improve the handling performance for the unusual vehicle the control system which blends both the DTC and the STC system is considered. It uses the merits of both the DTC and the STC system. As a control strategy for combination the switching control method is used. Finally, the fact that the unusual vehicle is safe under an emergency situation such as slippery road surface is proved by computer simulation.