How best to Use EDR Data from Vehicle Struck by Motorcycle?
Posted: Thu Apr 20, 2023 9:43 am
Q: On the INCR forum a topics was brought up where a question was posted:
- A motorcycle with substantial damage seems in contrast to the vehicle it struck where the EDR only recorded a lateral DeltaV of 7 MPH and a longitudinal DeltaV of 6 MPH. Wondered how can that be?
- Mentioned in responses was an EDR2 course where equations were presented to help the analyst adjust the DeltaV to the centroid of impact on the hit vehicle taking into consideration ground forces.
They included this list of external forces sources:
- 'Effects of Tire Friction/External Forces on EDR Data and
- '"Effective Mass" in DeltaV Calculations'
- I add a couple of related references related to the question brought up on
- 'what effect does braking/external forces have on the DeltaV recorded by EDRs'