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.
The paper presents aspects concerning the modeling, driving scenarios and control structures of two classes of vehicular power train systems with continuously variable transmission (CVT). The modeling includes an analysis of the systems' components which include the spark-ignition internal combustion engine, the torque converter, the continuously variable transmission and the wheels. The CVT offers...
This paper depicts in depth a series hybrid vehicle with a generation system based on an internal combustion engine coupled to a permanent magnets synchronous motor. A storage system with high power density, assured by the Ultracapacitors Unit (UC), is able to meet the driver peak power requests to run the vehicle and to store a part of energy from regenerative brakings as well. In this work, the...
Field bus technology has been widely used in vehicle electronics. For that distributed control system based on field bus can reduce electric system wiring, improve reliability, enhance information sharing, reduce repair difficulty, the application of field bus in electric drive vehicles will be the trend in future, and the time performance of field bus system will draw much attention. In order to...
The technology of testing fuel economy is not only a comprehensive parameter for evaluating the level of cars' technology and maintenance, but also an important reference for diagnosing and analyzing the troubles of cars. Using the method of Ultrasonic Flow Detection to measure the fuel consumption, this essay is based on a comprehensive comparison of several traditional fuel economy detection systems...
Effectively implementing KM in enterprises depends on the pervasive use of ontology in developing KM systems and the facilitation of enterprises in the construction, integration, evolution, access, and evaluation of knowledge. This study develops a concept feature-based mechanism for constructing and maintaining ontology. In addition to assisting enterprise knowledge engineers in constructing and...
For the requirements of formal expression of the system engineering language: SysML, we proposes a translation approach from SysML block diagram to description logic (SHIOQ(D)) knowledge base which plays a key role in semantic Web. Syntax and equational semantics of SysML are discussed and difficulties for formalizing SysML graphical elements are analyzed in Section 2. Section 3 introduces the description...
The noise coming from outer side of EMU has not yet been an important factor because of the low operating speed of EMU. As the speed enhancement has been required, noise level in the EMU is an important issue for the passenger comfort. Also the sliding door system has high possibility for the failure due to obstacles between doors. The door system is a safety device closely related to the passenger...
There is a demand for safer, cleaner and more affordable civil air engines and found to be of greater importance. Few years before, the European Union took a action for the design and construction of efficient and environmental friendly air engines. The benefits of this type of engine are focused on to reduced pollutants and decreased fuel consumption. In a wheeled vehicle engine system comprising...
Various methods of torque measurement which are utilized in the automotive industry are reviewed. Seven methods are described in order of usage, starting with the most frequently used types and continuing to less frequently used types of torque measurement. Performance limitations for each method of torque measurement also are summarized.
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.