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Electric Power Steering (EPS) has important significance in improving the auto's dynamic and static performances. This paper deals with the mathematical model and characteristic curves of EPS System. First, the principle and structure of EPS are discussed. Then the characteristics of EPS system are analyzed, including the typical power curves which deal the relationship of the assist torque and the...
In this paper, we firstly describe improved Adaboost algorithm, and then introduce wavelet moment, which has rotation, shift, scale moment invariants and multi-resolution characteristic, and which can not only extract image local feature, but also can extract global feature. so it is more stronger to oppose noise. This paper proposes dynamic pyramid changing idea of detector scale. A cascade classifier...
Vehicle driving simulator has been popularly used for researching on traffic safety. Modeling the traffic scene is one of the key technologies. In this study, traffic scene editor is proposed to solve this problem by editing the parameter of each traffic element. The five important functions of it are also designed. By analyzing the advantage of XML structure; XML is suggest to storage the edit data,...
This paper presents the results of wideband channel measurement campaigns conducted in vehicle environment. A frequency range of 0.5 - 16 GHz was measured using a vector network analyzer. Typical in-vehicle scenarios, including line-of-sight (LOS), non-line-of-sight (NLOS), different distance, impact of passengers, were considered. The objective of this work is to obtain a better assessment of the...
The effects of vehicle furnishings on the performance of a planar multi-band window mounted automotive antenna are discussed. Simulated and measured antenna performance together with field distributions within the vehicle cabin at 900 MHz and 1800 MHz shows the importance of including sufficient cabin furnishings in an electromagnetic model.
Traffic system is a dynamic complicated one which is constituted of some factors. Traffic accident will happen if these factors mismatch with each other. Safety level of traffic accident scene affects occurrence rate of secondary accident. In order to evaluate safety level of traffic accident scene, prevent from secondary accident happening and protect the policemen, crowds by the scene and party...
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