A Ground Vehicle Simulation DesignTo Study Driver Display Concepts

(IVSS-2003-MAS-02)

for:

3rd Annual Intelligent Vehicle Systems SymposiumNational Defense Industrial Association

June 9-12, 2003

AnnMarie Meldrum, Victor Paul, Al Reid, Harry J. Zywiol, Jr.US Army TACOM-TARDEC National Automotive Center (NAC) Ground Vehicle Simulation Laboratory (GVSL)

Background and Goal

Simulation Design Requirements

Simulation Design Features

Conclusions

Briefing Outline

Background

-Increased fidelity and use of Driving Simulators-New vehicle designs are exploring advanced driving interfaces

(displays, controls, information)

Current Effort- Design a virtual motion simulation to enable

- trade studies- supplement Crew station tech demos(e.g. FTTS, CAT)

…that models the ground vehicle dynamics environment.

Goal-Satisfy FCS, Objective Force mobility, human factors requirements

-“operate on-the-move” (tele-ops, C2, increased op tempo) -“function without adverse physical effects” (mitigate sickness, info overload)

Simulation Design Requirements

Displays – mimic two-man crew, head mounted & flat panelMotion – full 6 DOFProtocol – Design of Experiments (DOE)Console – wheeled vehicle with control loadingVehicle Dynamics – multi-body, Stryker designDatabase – turns, hills, cross-countryAudio – own vehicle soundsData Acquisition – to enable results of trades

Simulation Design Features

Cab display

Console

Symbology

Terrain/database

3-panel, 120x30 FOV, 21 inch

Steering loader, brake, accel, gear

Heading, speed, gearIntegrated with display

Roads, turns, features

Simulation Design Features (Cont’d)

HMD

Head Trackers(2)

Vehicle Dynamics

Motion Base, Audio

COTS, Kaiser ProView™, XL 50, 40x30 FOV

Multi-body, reacts to terrainand driver inputs

COTS, InterSense InertiaCube™Mounted on head and motion base Full 6-DOF, motion, audio cues

Experiment Protocol

Design of ExperimentsTwo fixed factors – HMD versus flat panelAnalysis - Independent variables: Fixed factorial, repeated measures2x4x2 (displays x vibration levels x course segments)

Dependent variables: road following, speed, long and latacceleration, steering wheel reversals, questionnaire ratings

12 subjects, civilian local population

Separate Multivariate ANOVAs- Vibration and course segments

Questionnaires(9) ANOVA

Determine influence ofdisplays, vibration, courseon driver performance.

Conclusions

Experiment not yet conducted (stay tuned)

Simulation design set up for vehicle/crew-station trade studies-Effects of Active, Passive Suspension, hybrids on Crew Performance-Joystick, yoke, steering wheel controls…feed-through vibration, and road feel characteristic settings?

-Optimum display design – what data & information to display,how to best render data – to make informed decisions

-Optimize camera locations

-Relatively? easy to modify simulation for tele-operations, UGV studies

For further information on this or any other GVSL products:

Harry J. Zywiol, Jr.Team Leader, Motion Base Technologies

TACOM-TARDEC6501 E. Eleven Mile RoadWarren, MI 48397-5000AMSTA-TR-NMS: 157, Bldg 215586-574-5032zywiolh@tacom.army.milhttp://www.tacom.army.mil/tardec/nac/teams/mbt/overview.htm