overview of project ads software engineering cse435 michigan state university fall 2013

Overview of Project ADSSoftware Engineering CSE435

Michigan State UniversityFall 2013

Team members:Project Manager: Alec DutchFacilitator: Duncan YoungCustomer Liason: Taylor JonesConfiguration Manager: Cameron Keif

Customer: Eileen Davidson, Ford Motor Company

Instructor: Dr. Betty H.C. Cheng**Please direct all inquiries to the instructor.

Project Overview

• Assisted Direct Start• Turns off engine when not needed• Increases gas efficiency

Overview of Goals

• Increase gas efficiency• Ensure vehicle functionality

remains unhindered• Allow driver to disable the system• Maintain vehicle safety

Considerations

● Engine temperature● Battery level● Speedometer reading● Pedal states

Domain Research

• Investigated Ford quick start technology– System in use already (2013

Fusion)– System execution– Fuel economy – Engine restart time

Project Constraints

• Project Constraints– Sensor dependability– Quick start technology

•Temperature requirements (200F)•Battery requirements (15%)•User comfort and safety

ADS System States

Enabled if:– engine temperature > 200 degrees F– car is not in park

Disabling actions:• car is in park• engine temp falls below 200 F

Engine States

Engine off:• When speed falls below 2.5mph only if:

– cabin temp is acceptable– battery is above 20%

Engine on when:• acceleration pedal pressed• temperature moves out of acceptable range• battery falls below 15%• ADS is disabled

Part II: Model-based View of System

• Class Diagram

– Relationship between ADS and subsystems

• State Diagram– Transitions between states of ADS system

Class Diagram

ADS State Diagram

Part III: Demonstration

• Prototype layout– User interface and display

• Scenarios– prototype use and system functionality

Prototype Layout

Prototype LayoutSimulation Window

•Buttons and animations•User interface for system

Prototype Layoutsystem panel

•Displays system variables•Includes buttons which change settings and scenarios

Prototype Layout

status panel•Green- instructions and scenario text•White- events•Black- system changes which result from events

Scenarios

1) Standard operation2) User disables ADS3) Driver comfort vs. Fuel economy

modes

Acknowledgements

• We gratefully acknowledge and appreciate the participation of our customer, Eileen Davidson from Ford