Transactions of the Korean Society of Automotive Engineers (한국자동차공학회논문집)

The Korean Society of Automotive Engineers (한국자동차공학회)
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Dynamic Performance Analysis for 6WD/6WS Armored Vehicles

6WD/6WS 군용차량의 동역학적 성능해석

  • 홍재희 (한양대학교 대학원) ;
  • 김준영 (정회원, 한양대학교 대학원) ;
  • 허건수 (정회원, 한양대학교 정밀기계공학과) ;
  • 장경영 (정회원, 한양대학교 정밀기계공학과) ;
  • 오재응 (정회원, 한양대학교 자동차공학과)
  • Published : 1997.11.01
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Abstract

In this study, a simulation tool is developed in order to investigate non steady-state cornering performance of 6WD/6WS special-purpose vehicles. 6WD vehicles are believed to have good performance on off-the-road maneuvering and to have fail-safe capabilities. But the cornering performances of 6WS vehicles are not well understood in the related literature. In this paper, 6WD/6WS vehicles are modeled as a 18 DOF system which includes non-linear vehicle dynamics, tire models, and kinematic effects. Then the vehicle model is constructed into a simulation tool using the MATLAB /SIMULINK so that input/output and vehicle parameters can be changed easily with the modulated approach. Cornering performance of the 6WS vehicle is analyzed for brake steering and pivoting, respectively. Simulation results show that cornering performance depends on the middle-wheel steering as well as front/rear wheel steering. In addition, a new 6WS control law is proposed in order to minimize the sideslip angle. Lane change simulation results demonstrate the advantage of 6WS vehicles with the proposed control law.

Keywords

References

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