The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Improving ride quality and active safety systems of convoy vehicles (vehicles traveling with close following distances on a specified path) can reduce fatigue and injury in military vehicle deployments and intelligent vehicle highway systems. A form of preview-active suspension control to improve convoy vehicle ride quality is proposed, wherein dynamic response of the lead vehicle is used to generate...
Kalman filters (KF) have been extensively used in the integration of global positioning system (GPS) and inertial navigation system (INS) data. Often, the GPS data is used as a benchmark to update the INS data. In this study, an analysis of integration of GPS data with INS data using an extended Kalman filter is performed in terms of the filter's performance with respect to the amount of noise in...
This paper introduces unusual vibration and noise test of the transmission in NVH road testing system. It analyses test data in detail by using dynamic signal analysis software. By analysis, we know that the vibration signal and noise signal measured in road testing system exactly match the actual vibration and noise signal of the transmission, which shows that it is feasible to carry on vibration...
This paper analyzes a promising method of road grade estimation for its potential use in aiding ground vehicle electronic stability control systems. The method in question incorporates GPS and motion sensors into a basic Kalman Filter model to achieve clean, high update estimates of the vertical and longitudinal velocity states from which the grade can be easily calculated. The knowledge of road grade...
On the basic of the video traffic surveillance system, the Vehicle detection is a crucial step. A typical method is background subtraction. Extracting and updating the background plays an important role on speed and efficiency of detection. For this reason, the author puts forward a fast and effective method for building and updating the background model. First, adopt the improved statistical method...
In this study, a nonlinear electric power steering (EPS) system dynamic model based on road disturbance and torque sensor noise is investigated. In this paper, a new method of determining assist coefficient is proposed to obtain good driverpsilas feel, which is only relative to vehicle velocity. Evaluation indexes and an augmented system combined with the state space model of EPS are obtained. Hinfin...
This paper proposes a new method for automatically detecting the states of the road surface from tire noises of vehicles. The methods are based on a fast Fourier transform analysis, an artificial neural network, and the mathematical theory of evidence. The proposed classification is carried out in sets of multiple neural networks using the learning vector quantization networks. The outcomes of the...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.