Component Mode Synthesis of a Vehicle System Model Using the Fictitious Mass Method

2003 ◽  
Author(s):  
Moti Karpel ◽  
Boris Moulin ◽  
Vladimir Feldgun
Keyword(s):  
Component Mode Synthesis ◽  
System Model ◽  
Vehicle System

An Analysis of Water Management for a PEM Fuel Cell System in Automotive Drive Cycles

2003 ◽  
Author(s):  
Kristina Haraldsson ◽  
Tony Markel ◽  
Keith Wipke
Keyword(s):  
Water Management ◽  
Fuel Cell ◽  
Water Balance ◽  
Power Output ◽  
Pem Fuel Cell ◽  
Cell System ◽  
System Model ◽  
Fuel Cell System ◽  
Vehicle System ◽  
Aggressive Drive

Low-temperature operation of a Proton Exchange Membrane (PEM) fuel cell system requires humidification of the membrane. The amount of water produced electrochemically within the fuel cell system is directly related to the system power output. In a vehicular application where the power output may vary substantially over time, it is critical that water management be addressed in the fuel cell and vehicle system design. This paper introduces the integration of a detailed fuel cell system model within a hybrid electric vehicle system model. The newly integrated models provide the capability to better understand the impacts of a variety of fuel cell and vehicle design parameters on overall system performance. Ultimately, coupling these models leads to system optimization and increased vehicle efficiency. This paper presents the initial results of a parametric study to quantify the impacts of condenser size and cathode inlet relative humidity on system water balance under realistic drive cycles in a fuel cell hybrid electric sport utility vehicle. The vehicle simulations included operation under both hot and ambient start conditions. The study results demonstrate that ambient start or aggressive drive cycles require larger condensers or water reservoirs to maintain a neutral water balance than either hot start or less aggressive drive cycles.

Dynamic Analysis of a Towed Underwater Vehicle System: Model Validation

2004 ◽  
Author(s):  
Gry Karin Haugen ◽  
Mads Grahl-Madsen
Keyword(s):  
Dynamic Analysis ◽  
Dynamic Model ◽  
Dynamic Behaviour ◽  
Equations Of Motion ◽  
Underwater Vehicle ◽  
Integrated System ◽  
System Model ◽  
Cable Model ◽  
Vehicle System ◽  
Successful Design

An integrated system consisting of two towed sub-sea vehicles and a free-floating probe is being developed to perform mapping and quantitative estimations for fish and plankton. A thorough understanding of the dynamic behaviour of the towed vehicle system is essential for a successful design, and a dynamic model that can accurately describe the vehicle behaviour under the influence of a wide variation of conditions, is necessary. This paper discusses two different approaches for the dynamic analysis of a towed vehicle system. Analyses are performed using the commercial available simulation program MOSES. Further the 2D equations of motion for the towed vehicle are developed and solved in Matlab using a simple cable model.

Vehicle System Modeling for HEV Systems Development

2007 ◽  
Author(s):  
Judy Che ◽  
Mark Jennings
Keyword(s):  
System Modeling ◽  
Model Development ◽  
System Model ◽  
Modeling Framework ◽  
Modeling Tools ◽  
Conventional Vehicle ◽  
System Models ◽  
Vehicle System ◽  
Development Processes ◽  
Component Models

The sheer complexity of engineering propulsion systems for hybrid electric vehicles (HEV) demands the use of model-based development processes supported by comprehensive, robust vehicle system models. A Vehicle System Modeling (VSM) process has been developed to provide high-quality, application-appropriate vehicle system models in time to support critical HEV engineering activities. The process seeks to manage the complexity of the large number of model variants that are required to support a vehicle program. Additionally, it drives model development and aligns modeling activities with program timing. This paper describes the key elements of the VSM process and presents an application example. The application example illustrates the process by which a highly detailed HEV system model is created from an initial, base conventional vehicle system model via integration of high fidelity component models into a re-usable vehicle system modeling framework. The component models come from a variety of modeling tools and environments, which introduces additional complexity that must be managed. Results generated from the model show the complex system interactions that must be addressed by the vehicle control strategy. This re-enforces the notion that such modeling is required to achieve robust system designs.

A Structural-Acoustic Vehicle System Model for Noise and Vibration Analysis

2003 ◽  
Author(s):  
Shung H. Sung ◽  
Donald J. Nefske ◽  
Douglas A. Feldmaier ◽  
Spencer J. Doggett
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Exhaust System ◽  
Element Model ◽  
Interior Noise ◽  
System Model ◽  
Structural Vibration ◽  
Vehicle Interior ◽  
Front Suspension ◽  
Vehicle System

A structural-acoustic finite-element model of a sedan-type automotive vehicle is developed and experimentally evaluated for predicting vehicle interior noise and structural vibration. The vehicle system model is developed from finite-element models of the major structural subsystems, which include the trimmed body, front suspension, rear suspension, powertrain and exhaust system. An acoustic finite-element model of the passenger compartment cavity is coupled with the vehicle system model to predict the interior noise response. The predicted interior noise and structural vibration by the vehicle system model are compared with the measured responses for shaker excitation at the axle to 200 Hz. The comparisons demonstrate the accuracy of the structural-acoustic vehicle system model, and they indicate where modeling improvements are required.

Component mode synthesis of a vehicle structural-acoustic system model

AIAA Journal ◽  
1986 ◽  
Vol 24 (6) ◽  
pp. 1021-1026 ◽  
Author(s):  
Shung H. Sung ◽  
Donald J. Nefske
Keyword(s):  
Component Mode Synthesis ◽  
System Model ◽  
Acoustic System

scholarly journals Modeling and Simulation of Single Battery Load Isolated Electric Vehicle Based on Simulink

2021 ◽  
Vol 2068 (1) ◽  
pp. 012029
Author(s):  
Benchao Liu
Keyword(s):  
Electric Vehicle ◽  
Peak Power ◽  
System Model ◽  
Maximum Speed ◽  
Vehicle Performance ◽  
Vehicle System ◽  
Performance Indexes ◽  
Voltage Curve ◽  
Power And Energy ◽  
Motor Model

Abstract The load isolation electric vehicle improves the range of electric vehicle, which separates the concept of power and energy, so that the engine can always work in the most economical operating area. Based on Simulink, a single battery load isolation electric vehicle model is established for a mini car. According to the requirements of vehicle performance indexes, the parameters of vehicle system model, gasoline generator set, battery pack and motor model were matched. In the process of accelerating the average speed to the set maximum speed, the battery voltage curve and the motor output power are analyzed. The analysis shows that the battery has no overvoltage danger and the motor does not exceed the peak power, thus verifying the feasibility and superiority of the model.

Test Correlation Framework for Hybrid Electric Vehicle System Model

2011 ◽  
Vol 4 (1) ◽  
pp. 1046-1057 ◽  
Author(s):  
Yan Meng ◽  
Mark Jennings ◽  
Poyu Tsou ◽  
David Brigham ◽  
Douglas Bell ◽  
...  
Keyword(s):  
Electric Vehicle ◽  
Hybrid Electric Vehicle ◽  
System Model ◽  
Vehicle System ◽  
Hybrid Electric ◽  
Test Correlation
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