Fuel Consumption Reduction of Off-Road Vehicles by Improving the Efficiency of the Hydromechanical Variable Transmission\u2019s Lubrication and Actuation Systems

2021 ◽  
Author(s):  
Massimo Milani ◽  
Luca Montorsi ◽  
Stefano Terzi ◽  
Mario Gelmini ◽  
Fabrizio Panizzolo ◽  
...  
Keyword(s):  
Fuel Consumption ◽  
Road Vehicles ◽  
Fuel Consumption Reduction ◽  
Consumption Reduction ◽  
Variable Transmission ◽  
Actuation Systems

scholarly journals Nonlinear Optimal Control of Continuously Variable Transmission Powertrain

2014 ◽  
Vol 2014 ◽  
pp. 1-11
Author(s):  
Reza Kazemi ◽  
Mohsen Raf’at ◽  
Amir Reza noruzi
Keyword(s):  
Optimal Control ◽  
Fuel Consumption ◽  
Gear Ratio ◽  
Driver Model ◽  
Control Rules ◽  
Fuel Consumption Reduction ◽  
Consumption Reduction ◽  
Variable Transmission ◽  
Ratio Change ◽  
Computational Systems

Optimization of gear ratio with the objectives of fuel consumption reduction and vehicle longitudinal performance improvement has been the subject of many studies for years. Finding a strategy for changing gears with specific control objectives, especially in the design of vehicles equipped with Continuously Variable Transition system (CVT), which has advantage of arbitrary selection of gear ratio, has been the aim of some recent researches. Optimal control theory has rarely been used in the previous control approaches applied to such systems due to the limitations in the use of fast computational systems. The aim of this study is to design the aforementioned gear ratio change strategy and related control rules on the basis of optimal control. A driver model is also designed for the simulation of driving cycle using MATLAB Simulink Toolbar. Results of implementing optimal control rules in vehicle longitudinal movement simulation with the aim of fuel consumption reduction are finally represented. The presented method has the remarkable advantage of considerable fuel consumption reduction in comparison to other proposed approaches for gear ratio change strategies.

Emission and Fuel Consumption Reduction of Diesel Engines by AGI Exhaust Manifold and Turbine Modules

MTZ worldwide ◽  
2015 ◽  
Vol 76 (11) ◽  
pp. 24-29 ◽  
Author(s):  
Om Parkash Bhardwaj ◽  
Bastian Holderbaum ◽  
Elmar Grußmann ◽  
Fabian Fricke
Keyword(s):  
Fuel Consumption ◽  
Diesel Engines ◽  
Exhaust Manifold ◽  
Fuel Consumption Reduction ◽  
Consumption Reduction

A method for reducing fuel consumption of urban scooters using vehicle design and traffic simulation

2016 ◽  
Vol 231 (7) ◽  
pp. 1252-1271
Author(s):  
Yu-An Lin ◽  
Pao-An Chen ◽  
Kuei-Yuan Chan
Keyword(s):  
Fuel Consumption ◽  
Traffic Simulation ◽  
Continuous Variable ◽  
Vehicle Design ◽  
Road Vehicles ◽  
Continuous Variable Transmission ◽  
Traffic Impact ◽  
Variable Transmission ◽  
Traffic Simulations

Vehicular tailpipe emissions have one of the largest impacts on urban air quality. One way to reduce these hazardous emissions is to reduce the amount of fuel consumed by on-road vehicles. In this research, we consider both vehicle design and driver behavior as crucial elements in evaluating the environmental impact of two-wheel vehicles. Any redesign of vehicle specifications, results in different driving patterns that need to be re-evaluated in a realistic environment with traffic simulation. Therefore we developed traffic simulations with mixed fleets to model scooter/driver behaviors to reflect urban driving scenarios. Based on the results, a 31-variable continuous variable transmission (CVT) design and a 14-parameter cellular automata traffic model are integrated. Simultaneous redesign of CVT with traffic simulation can reduce the fuel consumption by 16.2% in our case study. This promising outcome demonstrates the need for multi-discipline integration of real-world traffic impact assessments and improvements.

Research on Modeling and Control Strategy of Parallel Hybrid Electric Back-Loading Compression Sanitation Vehicle

2013 ◽  
Vol 420 ◽  
pp. 355-362
Author(s):  
Rong Yang ◽  
Di Ming Lou ◽  
Pi Qiang Tan ◽  
Zhi Yuan Hu
Keyword(s):  
Fuel Consumption ◽  
Electric Vehicle ◽  
Control Strategy ◽  
Hybrid Electric Vehicle ◽  
Stable Operation ◽  
Parallel Hybrid Electric Vehicle ◽  
Fuel Consumption Reduction ◽  
Consumption Reduction ◽  
Parallel Hybrid ◽  
Hybrid Electric

Establish simulation models of the conventional and parallel hybrid electric back-loading compression sanitation vehicle by AVL CRUISE and MATLAB/Simulink software. Study on control strategy of parallel hybrid electric vehicle based on the work characteristics of back-loading compression sanitation. Results show that: about 24.5% fuel consumption reduction in hybrid modeling compared to the conventional sanitation vehicle under heavy commercial vehicle standard test cycle (C-WTVC, Adapted World Transient Vehicle Cycle), and battery SOC was little changed at 50%. About 32% fuel consumption reduction in hybrid compared to the conventional vehicle under the actual road testing spectrum, and SOC increased about 21.6% relative to the initial state. It controls the engine to work in more stable operation region and reduces engine idle time, but increases engine start-stop times. It also could provide some references for specific engine development of parallel hybrid electric vehicle

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