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Automotive Engineering III
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cw-Value Optimisation
cw-Value Optimisation
Click <a href="https://www.euromotor.org/pluginfile.php/2156/mod_resource/content/0/pres2/slides-16.html" >slides-16.html</a> link to view the file.
cw-Value Optimisation
◄ Influences on the Aerodynamics
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Title
Structure
OEM Targets and Consequences for the Supplier Industry
Hierarchy of Manufacturer and Supplier
Possibility of Cost Reduction
Structure
Definition of Terms
Definition of Platform Strategy and Modular Design
Components of Platforms
Utilizing of Platform Strategy
Reduction of Product and Variant Mix
Reduction of Development Time and Costs
Differentiation of Brands
Differentiation of Brands by Design and Technical Variation
Volume Distribution of different Platforms of the VW Group
Models of the A ? Platform of Volkswagen Group
Component Platform / Cap in the complete Vehicle
Audi Platform: Floor Area of Audi A6 / A4
Audi Platform: Frame Side Rail with width matching in the Front End
Torsion and Bending Moment Audi A4 / A6
Fixture of Platform Component for the Body
Audi A4 / A6 Body Sequence during Body Assembly
Title
Arrangement
Modules and Systems
Modular Vehicle Design
Important Modules
Example of a Frontend Module
Description of Frontend Modules
Requirements for Passive Safety
Requirements of Passive Safety
Ease of Installation
Requirements for Economy
Requirements for Frontend Modules
Strategies for Modularization
Possibilities for Modularisation
1. Front- 1. Front- & Rear End Module Rear End Module
Example: Front- Example: Front- & Rear End Module Rear End Module
2. Vehicle Mid-Segmentation
Example: Vehicle Mid-Segmentation
3. Mid-Segmentation with sep. Roof
Example: Mid-Segmentation with sep. Roof
4. Triple Segmentation
Example: Triple Segmentation I
Example: Triple Segmentation II
5. Triple Segmentation with sep. roof
Example: Triple Segmentation with sep. roof
Summary and Overview
Vehicle Design Targets
Title
Aerodynamics and Design
Vehicle Development (1)
Vehicle Development (2)
Vehicle Development (3)
Shaping
Influencing Variables Aerodynamics - Design
User Group
Design Process
Complex Shading Effect
Interior Variability
Aerodynamic Influences on the Vehicle Functions
Fuel Consumption
Development of the cw- Values
Influences on the Aerodynamics
Response to Cross Winds
Lift and Pitching Moment
Influence of Body Form on the Yawing Moment
Optimisation of Aerodynamics Example Exterior Mirror
Water Gutter to the Benefit of Perception Safety
Optimisation Potential Aerodynamics
Aerodynamic Drag ? Conflict of Aims (1)
Aerodynamic Drag ? Conflict of Aims (2)
Aerodynamic Drag ? Conflict of Aims (3)
Research on Aerodynamics
Example According to Reynolds Number
Title
Package
Definition of Package
Package Plan ? Top View
Package Plan ? Front View
Package Plan ? Side View
Package Plan ? Side View Detailed View of Driver?s Seat
Influencing Variable on the Intersecting Point Human - Machine
Posture of the Driver as Necessary Result
Criteria for Driver`s Place Design
Frequency Density and Comulative Frequency
Optimum Seating Position in the Vehicle
Definition Seating-Reference-Point
Two Dimensional Body Contour Template
Driver Seating Position at Different Vehicle Categories
Monocular, Binocular and Ambinocular Visual Field
Angular Range for Head- and Eye Movement
Areas of Direct and Indirect Sight
Schematic Presentation of the 95% Eye-Ellipse
Sight Fields and Sight Coverings in the Side View
Visual Semi Circle, Sight Wedge and Authorized Sight Covering out of a Vehicle (§ 35b StVZO)
Obscuration in the Rear Area
Sight Obscuration at Trucks
Criteria of Operating Conception
Reach Contour for Control Elements
Operation Frequencies at 100.000 km Mileage
Priority Groups for Hand-Operated Control
Adjustable Buck and Simulation Suits
Title
Electrical Environment of the VW-Beetle
Today?s State of the Art: S-Class DaimlerChrysler
Future Electrical Systems in Vehicles
Classification of Electrical Systems
Electromechanical Brake (EMB) of Continental Teves
Electromechanical Brake Actuator
Electrical Power Assisted Steering
EPAS Systems
Active Front Steering Technology
Fundamental Improvements by Electrical Systems
Electrical Distribution System (EDS)
Development of the Required Electrical Energy
Dual Voltage Vehicle Electrical System ? Topology
42V Powernet ? Advantages and Disadvantages
Three-Phase Alternator
Starter Battery 12V
Working Principle of a PEM-Fuel-Cell
System Description ISAD
Control Principle ISAD
Title
Vehicle Lighting
Requirements for Headlamp System
Bright/Dark Cut-Off Line
Construction of Front Headlight
Headlight Systems
Paraboloid Headlights
Illumination-Reflector Diameter
Illumination Field-Reflector Focal Length
Illumination Field-Reflector Form
Poly Ellipsoid (PE) Headlight
PE-Plus (combined with VF)
Variable Focus (VF)
Relative Lighting Power for Identical Headlamp Assembly Space
Light Distribution on Lens
Light Distribution
Light Sources
Litronic System
Bifunction Litronic
Optimization of the Front Illumination
Automatic Headlamp Levelling
Headlamp Levelling
Cornering Light
Cornering Light
Adaptive Light Distribution
Adaptive Light Distribution
Concept for Adaptive Front Illumination
Control Principle Cornering Light
Title
New View of Vehicle Development
The Elements of Traffic
Levels of Vehicle Guidance
Levels of Driver Support
Interaction between Driver and System
Environment Detection by Human Beings
Influences of Vehicle Systems on Traffic
Legal Basis
System Overview
Development of Driver Assistance Systems
Functional Structure of a Lidar-Sensor
Exemplary Concept of (Laser) Sensors
Exemplary Concept of (Radar) Sensors
Saw-tooth Frequency Modulation of FMCW-Radar
Image Processing
Test Procedures of Sensor Evaluation
Test Procedures of Sensor Evaluation - Steady-state Test -
Detection of the Friction Coefficient
Analysis of Automatic Steering Regulation
Automatic Brake Control
Constituents of an Intelligent Cruise Control Unit (ACC)
Driver Assistance System: ACC
Traffic Flow Simulation Program PELOPS
Assessment of ACC Systemsfrom the point of view of Convoys
Heading Control
Possible Components of Collision Avoidance
The Vision: Accident-free Vehicles
Complete Autonomous Driving (Vita II)
GPS Receiver, Radio Communication
Path Levels of GPS-Satellites
Equations for GPS-Positioning
Principle of DGPS-Navigation
SAM - Situation Adaptive Powertrain Management
COMPANION
Automated highway systems
Arrangement in time horizon
Automotive Engineering Lecture 3
Response to Cross Winds ►