In this paper, the full-speed range path following system is proposed regardless of side-slip angle caused by lateral and inertia force in the high speed driving. In order to have robustness about model parameter error, the proposed system is designed according to the back-stepping control algorithm. In order to have control performance in full speed range, both kinematic and dynamic model is used, and to avoid the frequent transition between kinematic and dynamic based control mode, the hysteresis characteristics is applied. The performance of the proposed algorithm is evaluated by simulation and real-car test in the proving ground with Ikm straight road and 30m radius curved road. Nomenclature f3 : Side-slip angle of the vehicle r : Yaw rate of the vehicle If/ca r : Yaw angle of the vehicle with respect to the inertia coordinates If/roa d : Angle between the inertia coordinates and the tangent to the path d, : Vehicle lateral offset from the reference path ()f : Steering angle of the front tires P r e l : Curvature of the reference path m : Mass of the vehicle V : Vehicle velocity V, : Longitudinal velocity of the vehicle Vy : Lateral velocity of the vehicle Lf : Distance between the center of gravity and the front axle L r : Distance between the center of gravity and the rear axle C l : Cornering stiffness of the front tyres C r : Cornering stiffness of the rear tyres lz : yaw moment of inertia 710
In the case of the government, which plays a pivotal role in the landscape architecture system, the management of positions in landscape architectural organizations is lacking. At the local government level, while public officials for managing landscape architecture are being hired, there are problems and vulnerabilities in both management and system operations as such public officials recruited for positions in landscape architectural services operate under the forestry service. Accordingly, this study analyzed the Korean administrative system of public officials in the landscape architectural service and their satisfaction with the organizational culture and behavior. The aim was to provide practical data for improving the job satisfaction of public officials in landscape architectural service and enhance the status of landscape architecture.First, a survey was conducted regarding current organizational culture/behavior and job adequacy, and differences when compared to different job series with regards to the public officials in the landscape architectural service. The results indicated that job satisfaction of those in landscape architectural service was generally high, but they showed strong centralization, i.e., orders from superiors and limitations on autonomy.Second, an analysis was conducted to improve the organizational culture/behavior and job satisfaction of public officials in the landscape architectural service, and a comparative analysis was conducted on the differences between the analysis result and preceding studies by the Ministry of Government Administration and Home Affairs(2006). The results indicated that organizational commitment/satisfaction of public officials in the landscape architectural service was relatively low among those who had a great amount of work experience related to forestry. Therefore, it was shown that it is necessary to ensure expertise in landscape architecture.Third, a comprehensive analysis was conducted regarding the influences on "working environment", "legal system" and "job allocation" in regard to public officials in land architectural service. The results indicated that satisfaction in the value system was high when given significance to the job as public officials in land architectural. However, their satisfaction in the land architectural system was low due to the lack of independence in their positions, the vulnerable legal system of land architectural service and low employment rates.
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