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Based on the great development of engine technologies and the expansion of engine fuel economy area, a simulated engine Break Specific Fuel Consumption (BSFC) map is obtained. Then, for the paralleled hybrid vehicle, Dynamic Programming algorithm is adopted to research the effect of engine on the gearbox gear numbers. Finally, the simulation results show that on the new engine BSFC map, the fuel consumptions...
This paper deals with the problem of reducing fuel consumption and pollutant emissions of Heavy Duty Vehicles (HDV). The overall objective of improving the efficiency of the HDV can be obtained by employing the most advanced technologies in powertrain control and intelligent transportation systems, by taking into account road topography, traffic, weather conditions and driver behavior. This paper...
The accurate measurement of real-time vessel fuel consumption is very important for accurate calculation of ship energy efficiency as well as for ship management department to get vessel fuel consumption. A kind of real-time vessel fuel consumption monitoring system was designed to obtain real-time information of oil consumption of main engine and auxiliary engine, main engine speed, main engine axle...
This paper presents the development of velocity - time measuring system for motorcycles and the potential of proposing a driving cycle for motorcycles in Ho Chi Minh City. Motorcycles are the major mean of transport, but they are also the main source of air pollution in the biggest cities in Vietnam. Nowadays, the high levels of fuel consumption and air pollution are the most important problems that...
The change of the global dynamic performance of a turret-moored FPSO (Floating Production Storage Offloading) with DP (Dynamic Positioning) control is analyzed for two different internal turret locations: bow and mid-ship. Both collinear and non-collinear 100-yr GOM (Gulf of Mexico) storm environments and two cases (mooring-only, with DP control) are simulated. The horizontal trajectory, 6DOF (degree...
In this paper we present a comparison, based on pollutant emissions and fuel consumptions, of two alternative hypotheses for private cars renewal in a large urban area. One of the two scenarios includes a partial replacement of the internal combustion engine vehicles with the electric ones. Following a data-driven approach, we calculate well-to-wheel emissions and consumption using real traffic patterns...
Network-wide fuel consumption along arterial roadways increases as the number of vehicle stops caused by traffic signals increase. Eco-Cooperative Adaptive Cruise Control for Multiple Signals (Eco-CACC-MS) systems are being introduced to increase vehicle fuel consumption savings in the vicinity of signalized intersections. These Eco-CACC-MS systems utilize traffic Signal Phasing and Timing (SPaT)...
Autonomous vehicles are expected to increase drivers' freedom and improve traffic safety, congestion and potentially energy consumption. Volvo Car Group has planned to start the world's first large-scale test of autonomous vehicles in a project called Drive Me, in which customers use autonomous vehicles on the streets around Gothenburg in 2017. In this paper, measured data from semi-autonomous vehicles...
Diesel Engine Generators (DEGs) are used to generate power but in the process produce emissions of toxic air pollutants (taps). These ‘taps’ include Particulate Matter (PM) and Oxides of Nitrogen (NOx) which are harmful to humans and the environment. This paper has investigated the effect of retrofitting a 15kVA DEG using Retrofitted Diesel Fuel (RDF) and Pure Diesel Fuel (PDF). The data obtained...
An algorithm is developed to optimize vehicle speed trajectory over multiple signalized intersections with known traffic signal information to minimize fuel consumption and travel time, and to meet ride comfort requirements using sequential convex optimization method. A comparison between the proposed method and dynamic programming is carried out to verify its optimality. In addition, vehicle motion...
This study highlights the importance to develop a scientific mathematical allocation model that is operable and practicable, explores the relationship between vehicle fuel consumption and the various influencing factors. Apart from the factors recognized in the previous studies, such as cylinder, displacement and weight, this study addresses the significance of the involvement of road and environmental...
Vehicle navigation now a day, it has used the navigation devices for guided the user to get the destination point. The requirement of the user in general must be arrived by the right destination. In usual work of navigation system, it directed the path with shortest path, by did not calculate the time consuming as the traffic condition. Which effect to fuel consumption of the vehicle. The vehicle...
Hybrid electric car fuel consumption optimization based on fuzzy control strategy has strong subjective dependence, and the control results cannot reach the most optimal value. So a kind of improved genetic algorithm is introduced into optimization of control rule. According to genetic algorithm theory, the vehicle fuel consumption and emissions are taken as the objective function and fitness function...
Fuel used by heavy duty trucks is a major cost for logistics companies, and therefore improvements in this area are highly desired. Many of the factors that influence fuel consumption, such as the road type, vehicle configuration or external environment, are difficult to influence. One of the most under-explored ways to lower the costs is training and incentivizing drivers. However, today it is difficult...
To minimize the fuel consumption for driving, several methods have been proposed to calculate vehicles' optimal velocity profiles on a remote cloud. Considering the traffic dynamism, each vehicle needs to keep updating the velocity profile, which requires low latency for information uploading and profile calculation. However, these proposed methods cannot satisfy this requirement due to (1) high queuing...
The main concern for airlines is fuel consumption but also a long-term expectancy about the engine cost during its full life. This includes maintenance frequency and shop costs. In the next five years, Snecma, as engine manufacturer, needs to be able to collect more than one gigabyte of data per flight and per engine. This becomes huge as the flow of data continuously increases and should be used...
Dynamic engineering-economic models for real-time energy market was proposed. Dynamic connection between profit, price and energy power was shown. Power generator in the proposed model oriented for received of profit and its maximization.
This paper proposes a low-voltage DC (LVDC) architecture to replace the conventional low-voltage AC (LVAC) architecture in a diving support vessel (DSV). A genetic algorithm based optimization algorithm is also adopted to minimize the fuel consumption of the DSV. The DSV in study spends a majority of its time in dive or dynamic positioning (DP) mode, in which all four diesel generators are online...
Analysis of fuel consumption on orbit satellite is presented. The fuel consumption model is nonlinear based on the orbit thruster and attitude control thrusters' misalignment, and is assumed to have unknown dynamics. The issue regarding as the fuel consumption of orbit optimization can be converted to multi-variable optimization with constraint. A modification of the Analytic Hierarchy Process (AHP)...
Application of renewable energy is an effective way to control the excessive petroleum consumption in transportation sector. However, there is a worthy concern about the applicability of alternative fuel on in-use vehicles and the variation of exhaust emissions when switching from the traditional gasoline to a new fuel. This paper is aimed to investigate the impact of two typical kinds of alcohol...
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