SATAI July 2009 Meeting Rollover Demonstration Data Presentation.

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Presentation transcript:

SATAI July 2009 Meeting Rollover Demonstration Data Presentation

1989 Ford Aerostar XL VIN: 1FMCA11U6KZC48815 Expert Autostats: Front O.H. 28 in Wheel Base119 in Rear O.H. 28 in Track Width 62 in

1989 Ford Aerostar XL C.G. height 28 in. T/2h1.1

1989 Ford Aerostar XL Lightly loaded Left Right Front = 2170 front axle weight Rear = 1760 rear axle weight 3930 total weight

1989 Ford Aerostar XL Manufacturer recommended tire pressures (psi): 31 front 35 rear

1989 Ford Aerostar XL Pre-test tire pressures: LeftRight Front Rear

1989 Ford Aerostar XL with ballast Left Right Front = 2200 front axle weight Rear = 1980 rear axle weight 4180 total weight

1989 Ford Aerostar XL Post-test tire pressures: LeftRight Front Rear

Instrumentation Racelogic VBOX III – 100 Hz – GPS based Velocity Position Longitudinal and lateral acceleration

Instrumentation Diversified Techical Systems TDAS Pro – General data acquisition – 10,000 Hz – C.G. triaxial acceleration – C.G. triaxial angular rate – Steering wheel angle – T = 0 at trigger pluse secondary time marker – Speed from VBOX III (malfunction)

1989 Ford Aerostar XL Pre-test skid tests (VBOX III): Run 1, g’s Run 2, g’s

1989 Ford Aerostar XL Pre-test skid

Rollover Demonstration

Run 1

Run 1 – Velocity and Lateral Acceleration

Run 3 - Aborted Rollover Attempts

Run 3

Run 3a – brake test

Run 3b – brake test

Run 3c – brake test

1989 Ford Aerostar XL Aborted rollover - skid tests (VBOX III): Run 3a, g’s Run 3b, g’s Run 3c, g’s

1989 Ford Aerostar XL Run 4 – Rollover (VBOX III): Data Loss

1989 Ford Aerostar XL Run 4 – DTS TDAS

1989 Ford Aerostar XL x acceleration

1989 Ford Aerostar XL Steering wheel angle

1989 Ford Aerostar XL C.G. acelerations X= Blue Y=Red Z= Green

1989 Ford Aerostar XL C.G. rotational rates X= Blue Y=Red Z= Green

1989 Ford Aerostar XL C.G. roll angle (x)

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