Technical Paper
Confirmation of Toyota EDR Pre-crash Data
2012-04-16
2012-01-0998
Modern event data recorders (EDRs) can provide useful information regarding vehicle incidents. EDR information, when used in conjunction with the available physical information, can greatly assist accident analysis and field performance evaluation. This additional source promotes more accurate understanding of crashes, which in turn advances vehicle safety research, and investigations. This paper analyzes the performance of Toyota's EDR, focusing on pre-crash data (vehicle speed, engine speed, brake switch status, and accelerator pedal position sensor #1 voltage) and certain other parameters (front seat belt buckle switch status, driver seat track position, right front occupant status, and gear shift position). The EDR pre-crash data was compared to the data on the High Speed Controller Area Network (HS-CAN) data during eleven test conditions.
