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A vehicle motion state estimation model is established based on the millimetre wave radar. The system noise and observation noise are considered and the Kalman filtering algorithm is adopted to estimate the relative distance, relative velocity and relative acceleration of the front vehicle or obstacles. The collision risk model based on the improved TTC (time-to-collision) is established according...
A fuzzy control based on particle swarm optimization of heavy truck EPS system control strategy is proposed, on the basis of vehicle EPS system overall design, combined with the driver steering subjective feeling and the sense of road requirements designed assistance characteristics curve, steering system model, 7 degrees of freedom vehicle dynamics model. The simulation experimental results show...
Based on particle swarm optimization of heavy truck EPS system control strategy is proposed, on the basis of vehicle EPS system overall design, taking DC motor current as the control target, using particle swarm optimization fuzzy control strategy, using MATLAB/Simulink as simulation platform, taking dump truck as research type models and commercial vehicle simulation model which equipped with EPS...
The fast moving of nodes will cause the frequent change of network topology which makes the data dissemination of VANET (Vehicular Ad-hoc Networks) challenging. This paper proposes a data dissemination strategy which is called the Adaptive Connectivity Data Dissemination Scheme (ACDDS), that is, the nodes calculate the network connectivity in current areas by the distributed nodes density perception...
The vehicular mobility models will seriously affect the simulation results of the key technologies for Vehicular Delay Tolerant Networks. Most of the existing vehicular mobility models are synthetic mobility models which cannot properly reflect the real environment. This paper proposed vehicular mobility model based on real traces, which has considered the road topology, the vehicle speed control...
In China, the methods of time-control, optical-control and time-optical-control are in common used to control street lamp, particularly in small and medium-sized cities. But due to the backward lighting control and administrative method, the precision is bad, and the result of work is also poor. Through many kinds of sensor combination sense environment's change, the multi-sensor exhibition can combinatory...
This paper is concerned with the application of U-parameter design method to a problem of "trajectory shaping." Three linearized models are assumed for an unpowered vehicle with modelling errors introduced by variations in flight path angle. Corresponding to the three linearized models, three controllers, which are used in different flight phase, are designed by U-parameter theory. The three...
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