A Torque Demand Strategy of IC Engines for Fuel Consumption Improvement using Traffic Information

2013 ◽  
Vol 46 (21) ◽  
pp. 700-705 ◽  
Author(s):  
Mingxin Kang ◽  
Tielong Shen
Author(s):  
Jooin Lee ◽  
Hyeongcheol Lee

Intelligent Transportation System (ITS) is actively studied as the sensor and communication technology in the vehicle develops. The Intelligent Transportation System collects, processes, and provides information on the location, speed, and acceleration of the vehicles in the intersection. This paper proposes a fuel optimal route decision algorithm. The algorithm estimates traffic condition using information of vehicles acquired from several ITS intersections and determines the route that minimizes fuel consumption by reflecting the estimated traffic condition. Simplified fuel consumption models and road information (speed limit, average speed, etc.) are used to estimate the amount of fuel consumed when passing through the road. Dynamic Programming (DP) is used to determine the route that fuel consumption can be minimized. This algorithm has been verified in an intersection traffic model that reflects the actual traffic environment (Korea Daegu Technopolis) and the corresponding traffic model is modeled using AIMSUN.


Energy ◽  
2020 ◽  
Vol 197 ◽  
pp. 117300
Author(s):  
Roberto Berlini Rodrigues da Costa ◽  
Fernando Antônio Rodrigues Filho ◽  
Thiago Augusto Araújo Moreira ◽  
José Guilherme Coelho Baêta ◽  
Márcio Expedito Guzzo ◽  
...  

2004 ◽  
Author(s):  
Moritaka Matsuura ◽  
Koji Korematsu ◽  
Junya Tanaka

1977 ◽  
Vol 99 (4) ◽  
pp. 645-649 ◽  
Author(s):  
R. R. Cullom ◽  
R. L. Johnsen

A comparison of the specific fuel consumption was made with and without an internal mixer installed in a low bypass ratio, confluent flow turbofan engine. Tests were conducted at several Mach numbers and altitudes for core to fan stream total temperature ratios of 2.0 and 2.5 and mixing lengths of L/D = 0.95 and 1.74. For these test conditions, the specific fuel consumption improvement varied from 2.5 to 4.0 percent.


Energies ◽  
2021 ◽  
Vol 14 (6) ◽  
pp. 1548
Author(s):  
Antonio Galvagno ◽  
Umberto Previti ◽  
Fabio Famoso ◽  
Sebastian Brusca

The most efficient energy management strategies for hybrid vehicles are the “Optimization-Based Strategies”. These strategies require a preliminary knowledge of the driving cycle, which is not easy to predict. This paper aims to combine Worldwide Harmonized Light-Duty Vehicles Test Cycle (WLTC) low section short trips with real traffic levels for vehicle energy and fuel consumption prediction. Future research can focus on implementing a new strategy for Hybrid Electric Vehicle (HEV) energy optimization, taking into account WLTC and Google Maps traffic levels. First of all, eight characteristic parameters are extracted from real speed profiles, driven in urban road sections in the city of Messina at different traffic conditions, and WLTC short trips as well. The minimum distance algorithm is used to compare the parameters and assign the three traffic levels (heavy, average, and low traffic level) to the WLTC short trips. In this way, for each route assigned from Google maps, vehicle’s energy and fuel consumption are estimated using WLTC short trips remodulated with distances and traffic levels. Moreover, a vehicle numerical model was implemented and used to test the accuracy of fuel consumption and energy prediction for the proposed methodology. The results are promising since the average of the percentage errors’ absolute value between the experimental driving cycles and forecast ones is 3.89% for fuel consumption, increasing to 6.80% for energy.


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