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This paper investigates the energy saving of base station (BS) deployed in a 1-D multi-hop vehicular network with sleep scheduling strategy. We consider cooperative BS scheduling strategy where BSs can switch between sleep and active modes to reduce the average energy consumption utilizing the information of vehicular speeds and locations. Assuming a Poisson distribution of vehicles, we derive an...
For the purpose of engineering development for failure insert testing, a HiL model for automatic transmission was established and key boards of dSPACE system which contributed testing were set up. Aimed to simulate solenoid and sensor failure insert testing, the testing theory and method were introduced. Testing results showed that failure insert testing method can be used for solenoid and sensor...
Single-antenna BeiDou Navigation Satellite System (BDS) receivers could not measure the trajectory of space spinning vehicles at the present time, Multi-antenna installed around of spinning vehicles were applied to gaining the continual signal. Phase centers of antennas are difference because of difference installation position of antennas, which introduce serious systematic errors into the position...
VANET is developed as a standard means of communication among moving vehicles. In VANET a vehicle needs to periodically exchange message with its neighbors so that they are aware of any changes to the surrounding vehicles. But the emergency message is event driven, the occurrence of it is unpredictable. So it is important to verify that emergency message can transmit reliably on rapidly changing vehicular...
This paper investigates the energy efficiency of base station sleep scheduling strategies in 1-D infrastructure-based wireless communication networks formed by vehicles traveling on a highway. In certain scenarios, vehicular speeds and locations can be measured with a high degree of accuracy, and this information can be exploited to reduce the energy consumption of base stations. This paper considers...
The function of fire control system on armored vehicle and the importance of test and evaluation (T&E) for weapon system were described. Composition and working principle of automatic force application system were introduced. For specific problems appeared in use of force sensor, outlier detection of measured data and its generating reason were analyzed with 3σ and Romanovski criteria. In which,...
In this paper, a license plate location algorithm, fused texture characteristics and color information are proposed, where the license plate characteristics of structure and color are fused based on the fixed color collocation between background and the character of the license plate. Firstly, we would perform edge detection on gray-scale images of vehicles, and then, give the Canny operator edge...
Based on the accident that the tracked vehicle rolls over when rapidly passing the unilateral obstruction, this paper analyzes the system using the system-theory and the kinetic methods on the safety trait of the process that the tracked vehicle pass rapidly through the unilateral-obstruction. The state equation of running trait that the rapid tracked vehicle shows in the passing of unilateral-obstruction...
Purpose: Melatonin is involved in regulation of intraocular pressure (IOP). In this study, we evaluated the effect of melatonin and its agonist, Neu-P11, on IOP in ocular normotensive rabbit eyes. Material and Methods: A multiple-dose (10-14mol/L ~ 10-5 mol/L, 10µl) study was performed in 30 male New Zealand white rabbits. Melatonin or Neu-P11 was applied topically, and IOP was measured for 7 hours...
The authors have adopted a time delay control method to roundly analyze vehicle dynamic capability equipped with four wheel steering based on close-loop driver vehicle system, especially, driver's steering behavior tends to become more discontinuous while performing an activity during driving. The single-loop quasi-linear driver steering model can certainly be applied to modeling of a 5 DOF vehicle...
Electric Power Steering (EPS) systems have many merits over traditional hydraulic power steering systems in fuel economy, variable assist capabilities and favorable road feeling by virtue of adjustment assist characteristic with adopting assist motor in replacement of hydraulic pump. This paper aims at modeling the mechanical parts, the assist motor and electronic control unit by bond graph technique...
In this paper, we propose a yaw moment control based on fuzzy-logic controller to enhance the vehicle stability. A two-degree-of-freedom nonlinear model of the considered vehicle is briefly presented. The feedback of the yaw rate and sideslip angle are regarded as inputs of the controller. The developed controller generates the suitable steering angle so that the vehicle follows the target values...
To enhance yaw stability of the vehicle with Active Front Steering System, a vehicle two-degree-of-freedom simple model is set up. The feedback of the yaw rate is regarded as an input; we propose a yaw moment control based on fractional-order PID controller, and parameters in-line setting in the process of control is realized. The developed controller generates the suitable yaw moment so that the...
This paper has investigated the cab styling of heavy-duty truck with a low air drag based on aerodynamics and aesthetics. It focuses on the relationship of air-deflector, trailer and drag through an example of air-deflector styling. The parameters, the angle of air-deflector and the height of trailer, are specifically discussed here. The gap between cab and trailer is fixed. A lower drag cab is presented...
This paper deals with energy-saving advantage in a electric power steering system. Currently, electric power steering systems are commonly used for mini-sized vehicles, and reduction of electric energy of the electromagnetic clutch under non-steering condition is important for energy-savings of the EPS system to improve fuel economy. This paper describes a newly designed method using pulse width modulation...
Steering-by-Wire system has received lot of attention in the recent years because of the development of vehicle stability control systems and intelligent vehicle highway systems. The variable structure controller based on the reference model with a drive model is insensitive to parameter variations so that the available control authority and the effect of Steering-by-Wire system on vehicle yaw response...
The new generation of Steering-by-Wire systems currently under development has demanding requirements continuing operation even in the presence of component failures on the electronic architecture which must therefore provide fault-tolerance and real-time response. The objective of this paper is to provide the fault diagnostics and reconfiguration strategy with the robust adaptive observers in order...
In this paper, a modeling, planning and remote control of a redundant manipulator for a semi-structured ldquounder vehiclerdquo environment is investigated. The geometric characteristic is abstracted by the distance laser sensory information and collision danger is measured in real time to activate the self-motion of reshaping the configuration. To make a real time solution, a intuitive collision...
This paper presents an approach of modeling for Fiber Optic Micro Cable (FOMC), constructs a coupled nonlinear model for Remotely Operated Vehicle(ROV) connected with FOMC, and makes computer simulation at last. The model of FOMC takes use of the lumped mass method in which FOMC is considered to be a system of micro units connected by elastic non-mass spring. Four order Runge-Kutta method is used...
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