نتایج جستجو برای: automobile engine
تعداد نتایج: 80648 فیلتر نتایج به سال:
Article history: Received 2 April 2013 Received in revised form 25 July 2013 Accepted 26 July 2013 Available online xxxx Since the 1970s, automobile manufacturers have used electronics for safety–critical automobile control systems such as acceleration, braking, and steering. These electronic systems introduced functionalities in automobiles that were not feasible in a purely mechanical framewo...
We analyze alternative fuel-powertrain options for internal combustion engine automobiles. Fuel/engine efficiency, energy use, pollutant discharges, and greenhouse gas emissions are estimated for spark and compression ignited, direct injected (DI), and indirect injected (II) engines fueled by conventional and reformulated gasoline, reformulated diesel, compressed natural gas (CNG), and alcohols...
Ultracapacitors are energy storage devices that have shown outstanding capability in a vast spectrum of applications, mainly systems required to deliver short bursts electrical energy. possess high power density while batteries density. In this paper, hybrid device comprising lithium-ion ultracapacitor module and lead acid battery was modeled, built, tested for vehicular start–stop application,...
Analysis of Piezoelectric Energy Harvesting Interface Circuit Applied to Automobile Engine Vibration
In order to realize the continuous power supply for vibration fault monitoring system of automobile engine, aiming at low efficiency and instability existing piezoelectric full bridge rectifier energy collection circuit, this paper proposes a circuit scheme based on synchronous charge extraction. The can provide efficiency, analyze by impedance analysis. Finally, experiment shows that theoretic...
Three-cylinder gasoline engines are increasingly favored by major automobile manufacturers due to their good fuel economy, low manufacturing cost and consumption. However, the inherent balance problem has an adverse effect on vibration of whole engine even comfort vehicle, which limits its application in high-end models. This paper studied dynamics characteristic flexible multi-body system thre...
The automobile is undergoing a revolution in the design of its electrical system. This is the result of increasingly sophisticated engine and body controls, as well as the introduction of new, electrically controlled functions. The main electrical bus of the future will be 42 V, and it will be buffered by a 36 V battery [1,2]. As many devices and electronic control units require voltages differ...
In case of automobile the fuel saving is the prime important with minimum emission and best performance. The phenomenon by which heat transfer takes place through engine fins must frequently be improved for these reasons. Air-cooling used to reduced weight and simple in construction of engine cylinder block. So,air-cooled engine build heat, the cooling fins permit the wind and air to move the h...
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