Fuel Efficiency Comparison Between a Conventional and a Hybrid Vehicle Using a Model Based on MATLAB/Simulink and ADAMS

2008 ◽  
Author(s):  
Brian S. Fan ◽  
Amir Khajepour ◽  
Mehrdad Kazerani
Keyword(s):  
Fuel Economy ◽  
Model Simulation ◽  
Hybrid Vehicle ◽  
Published Data ◽  
Simulation Platform ◽  
Vehicle Model ◽  
Control Logic ◽  
Matlab Simulink ◽  
Conventional Vehicle ◽  
Fuel Economy Improvement

Recent development of hybrid vehicles in the automotive industry has demonstrated the capability of reducing fuel consumption while maintaining vehicle performance. The purpose of this paper is to present a hybrid vehicle model created in MATLAB and ADAMS, and its fuel economy improvement over a conventional vehicle system. The hybrid vehicle model discussed in this paper utilizes the Honda IMA (Integrated Motor Assist) architecture. The powertrain components’ power output calculation and the control logic were modeled in MATLAB/Simulink, while the mechanical inertial components were modeled in ADAMS. Communication between MATLAB and ADAMS was established by ADAMS/Controls. The vehicle model created using MATLAB and ADAMS provides a more accurate, more realistic, and a highly flexible simulation platform. In order to evaluate the accuracy of the MATLAB/ADAMS hybrid vehicle model, simulation results were compared to the published data of ADVISOR. Fuel economy of hybrid and conventional vehicle models were compared using the EPA New York City Cycle (NYCC) and the Highway Fuel Economy Cycle (HWFET). The hybrid vehicle demonstrated 8.9% and 14.3% fuel economy improvement over the conventional vehicle model for the NYCC and HWFET drive cycles, respectively. The MATLAB/ADAMS vehicle model presented in this paper, demonstrated the fuel economy advantage of the hybrid vehicle over the conventional vehicle model, while offering a simulation platform that is modular, flexible, and can be conveniently modified to create different types of vehicle models.

Modeling and Simulation of Medium-Duty Tactical Truck for Fuel Economy Improvement

2010 ◽  
Author(s):  
Y. Gene Liao ◽  
Chih-Ping Yeh ◽  
Allen M. Quail
Keyword(s):  
Modeling And Simulation ◽  
Fuel Economy ◽  
Automatic Transmission ◽  
Vehicle Model ◽  
Model And Simulation ◽  
Vehicle Data ◽  
Experimental Vehicle ◽  
Shift Schedules ◽  
Fuel Economy Improvement ◽  
The Impact

The impact of the vehicle fuel economy in tactical convey is amplified due to the fact that much of the present logistics support is devoted to moving fuel. Fuel economy improvement on medium-duty tactical truck has and continues to be a significant initiative for the U. S. Army. The focus of this study is the investigation and analysis of Automated Manual Transmissions (AMT) that have potential to improve the fuel economy of the 2.5-ton cargo trucks. The current platform uses a seven-speed automatic transmission. This study utilized a combination of on-road experimental vehicle data and analytical vehicle model and simulation. This paper presented the results of (1) establishment of a validated, high fidelity baseline analytical vehicle model, (2) modeling and simulation of two AMTs and their control strategy, and (3) optimization of transmissions shift schedules to minimize the fuel consumption. The fuel economy discrepancy between experimental average and the baseline simulation result was 2.87%. The simulation results indicated a 12.2% and 14.5% fuel economy improvement for the 12-speed and 10-speed AMT respectively.

scholarly journals Different Rule-based Control Schemes for a Series Hydraulic Hybrid Vehicle

2016 ◽  
Vol 3 (1) ◽  
pp. 101
Author(s):  
Tri-Vien Vu
Keyword(s):  
Fuel Economy ◽  
Hybrid Vehicle ◽  
Power Source ◽  
Rule Based ◽  
Conventional Vehicle ◽  
Hydraulic Hybrid ◽  
Short Period ◽  
Control Schemes ◽  
Hydraulic Hybrid Vehicle ◽  
The Difference

In a hybrid hydraulic vehicle, the hydraulic accumulator is used as the secondary power source in addition to the engine to propel the vehicle. Since the accumulator is a passive power source, it will be only used to compensate the difference between the power demand and the power delivery by the engine. Obviously, the main energy consumption is the engine. Hence a straightforward strategy to improve the fuel economy is to reduce the engine operating period. In contrast, because of the low energy density characteristic, the accumulator can only afford the required power in a short period. As a consequence, the hydraulic hybrid vehicle has been concluded only suitable for start-stop-and-go driving pattern. This paper present different rule-based control schemes for a 3.5- ton series hydraulic hybrid truck. The simulation results indicate that by applying suitable control scheme, the proposed series hydraulic hybrid system offers improvements of fuel economy for both urban and highway driving condition. The improvement is of 42.67% and 36.56% for urban and highway driving conditions, respectively in comparison with the corresponding conventional vehicle.

scholarly journals Turbocompound Power Unit Modelling for a Supercapacitor-Based Series Hybrid Vehicle Application

Energies ◽  
2020 ◽  
Vol 13 (2) ◽  
pp. 447
Author(s):  
Matteo Repetto ◽  
Massimiliano Passalacqua ◽  
Luis Vaccaro ◽  
Mario Marchesoni ◽  
Alessandro Pini Prato
Keyword(s):  
Diesel Engine ◽  
Power Unit ◽  
Fuel Economy ◽  
Hybrid Vehicle ◽  
Efficiency Improvement ◽  
Technical Literature ◽  
Turbocharged Diesel Engine ◽  
Conventional Vehicle ◽  
Efficiency Increase ◽  
Efficiency Map

In this paper, starting from the measurements available for a 2000 cm3 turbocharged diesel engine, an analytical model of the turbocharger is proposed and validated. The model is then used to extrapolate the efficiency of a power unit with a diesel engine combined with a turbocompound system. The obtained efficiency map is used to evaluate the fuel economy of a supercapacitor-based series hybrid vehicle equipped with the turbocompound power unit. The turbocompound model, in accordance with the studies available in the technical literature, shows that the advantages (in terms of efficiency increase) are significant at high loads. For this reason, turbocompound introduction allows a significant efficiency improvement in a series hybrid vehicle, where the engine always works at high-load. The fuel economy of the proposed vehicle is compared with other hybrid and conventional vehicle configurations.

scholarly journals Enhancing the fuel economy of a plug-in series hybrid vehicle system

2019 ◽  
Vol 23 (1) ◽  
pp. 130-137
Author(s):  
Hussein Awad Kurdi Saad
Keyword(s):  
Output Power ◽  
Fuel Economy ◽  
Hybrid Vehicle ◽  
Conventional Vehicle ◽  
Hybrid Car ◽  
Vehicle System ◽  
Driving Model ◽  
In Series

Abstract In this paper, the design and simulation of a hybrid vehicle with a fully functional driving model is presented. Actual velocities and desired velocities are compared and matched to get the optimum values of a vehicle. Fuel economy is calculated to get miles per gallon gasoline equivalent (MPGe). The MPGe for a hybrid vehicle is compared with the MPGe for a conventional vehicle to get the best MPGe in a hybrid car. A higher performance of output power of a vehicle is obtained.

scholarly journals Modelling and experimental validation of the performance of a digital displacement® hydraulic hybrid truck

2021 ◽  
pp. 095440702110261
Author(s):  
William JB Midgley ◽  
Daniel Abrahams ◽  
Colin P Garner ◽  
Niall Caldwell
Keyword(s):  
Mathematical Model ◽  
Hybrid System ◽  
Fuel Economy ◽  
Experimental Validation ◽  
Vehicle Model ◽  
Drive Cycle ◽  
Hydraulic Hybrid ◽  
Fuel Economy Improvement ◽  
Foam Filled ◽  
Hydraulic Accumulator

The development, modelling and testing of a novel, fuel-efficient hydraulic hybrid light truck is reported. The vehicle used a Digital Displacement® pump/motor and a foam-filled hydraulic accumulator in parallel with the existing drivetrain to recover energy from vehicle braking and use this during acceleration. The pump/motor was also used to reduce gear-shift times. The paper describes the development of a mathematical vehicle model and the validation of this model against an extensive testing regime. In testing, the system improved the fuel economy of the vehicle by 23.5% over the JE05 midtown drive cycle. The validated mathematical model was then optimised and used to determine the maximum fuel economy improvement over the diesel baseline vehicle for two representative cycles (JE05 midtown and WLTP). It was found that the hybrid system can improve the fuel economy by 24%–43%, depending on the drive cycle. When this was combined with engine stop-start, the system improved the fuel economy of the vehicle by 29%–95%, depending on the drive cycle.

Dynamic Reserve Energy Storage for Hybrid Vehicle Fuel Economy Improvement

2015 ◽  
Author(s):  
Deepak Sharma ◽  
Sreenath K Reghunath ◽  
Ashwini Athreya
Keyword(s):  
Energy Storage ◽  
Fuel Economy ◽  
Hybrid Vehicle ◽  
Fuel Economy Improvement
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