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CFR > Title 49 - Transportation > SUBTITLE B—Other Regulations Relating to Transportation > CHAPTER V—NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION (Parts 501–599) > PART 563—EVENT DATA RECORDERS > 563.8—Data format

CFR

563.8—Data format

(a) The data elements listed in Tables I and II, as applicable, must be reported in accordance with the range, accuracy, and resolution specified in Table III
Table III—Reported Data Element Format
Data element Minimum range Accuracy Resolution
Lateral acceleration −5 g to 5 g ±10% 0.5 g.
Longitudinal acceleration −50 g to 50 g ±10% 0.5 g.
Normal acceleration −5 g to 5 g ±10% 0.5 g.
Longitudinal delta-V −100 km/h to 100 km/h ±10% 1 km/h.
Lateral delta-V −100 km/h to 100 km/h ±10% 1 km/h.
Maximum delta-V, longitudinal −100 km/h to 100 km/h ±10% 1 km/h.
Maximum delta-V, lateral −100 km/h to 100 km/h ±10% 1 km/h.
Time, maximum delta-V, longitudinal 0—300 ms, or 0—End of Event Time plus 30 ms, whichever is shorter ±3 ms 2.5 ms.
Time, maximum delta-V, lateral 0—300 ms, or 0—End of Event Time plus 30 ms, whichever is shorter ±3 ms 2.5 ms.
Time, maximum delta-V, resultant 0—300 ms, or 0—End of Event Time plus 30 ms, whichever is shorter ±3 ms 2.5 ms.
Vehicle roll angle −1080 deg to 1080 deg ±10% 10 deg.
Speed, vehicle indicated 0 km/h to 200 km/h ±1 km/h 1 km/h.
Engine throttle, percent full (accelerator pedal percent full) 0 to 100% ±5% 1%.
Engine RPM 0 to 10,000 rpm ± 100 rpm. 100 rpm.
Service brake (on, off) On and Off N/A On and Off.
ABS activity On and Off N/A On and Off.
Stability control (on, off, engaged) On, Off, Engaged N/A On, Off, Engaged.
Steering input −250 deg CW to 250 deg CCW ±5% 1%.
Ignition cycle, crash 0 to 60,000 ±1 cycle 1 cycle.
Ignition cycle, download 0 to 60,000 ±1 cycle 1 cycle.
Safety belt status, driver On or Off N/A On or Off.
Safety belt status, right front passenger On or Off N/A On or Off.
Frontal air bag warning lamp (on, off) On or Off N/A On or Off.
Frontal air bag suppression switch status On, Off, or Auto N/A On, Off, or Auto.
Frontal air bag deployment, time to deploy/first stage, driver 0 to 250 ms ±2 ms 1 ms.
Frontal air bag deployment, time to deploy/first stage, right front passenger 0 to 250 ms ±2 ms 1 ms.
Frontal air bag deployment, time to nth stage, driver 0 to 250 ms ±2 ms 1 ms.
Frontal air bag deployment, time to nth stage, right front passenger 0 to 250 ms ±2 ms 1 ms.
Frontal air bag deployment, nth stage disposal, driver (y/n) Yes or No N/A Yes or No.
Frontal air bag deployment, nth stage disposal, right front passenger (y/n) Yes or No N/A Yes or No.
Side air bag deployment, time to deploy, driver 0 to 250 ms ±2 ms 1 ms.
Side air bag deployment, time to deploy, right front passenger 0 to 250 ms ±2 ms 1 ms.
Side curtain/tube air bag deployment, time to deploy, driver side 0 to 250 ms ±2 ms 1 ms.
Side curtain/tube air bag deployment, time to deploy, right side 0 to 250 ms ±2 ms 1 ms.
Pretensioner deployment, time to fire, driver 0 to 250 ms ±2 ms 1 ms.
Pretensioner deployment, time to fire, right front passenger 0 to 250 ms ±2 ms 1 ms.
Seat track position switch, foremost, status, driver Yes or No N/A Yes or No.
Seat track position switch, foremost, status, right front passenger Yes or No N/A Yes or No.
Code of Federal Regulations 189
Occupant size driver occupant 5th female size (y/n) Yes or No N/A Yes or No.
Occupant position size right front passenger child (y/n) Yes or No N/A Yes or No.
Occupant position classification, driver oop (y/n) Yes or No N/A Yes or No.
Occupant position classification, right front passenger oop (y/n) Yes or No N/A Yes or No.
Multi-event, number of events (1, 2) 1 or 2 N/A 1 or 2.
Time from event 1 to 2 0 to 5.0 sec 0.1 sec 0.1 sec.
Complete file recorded (y/n) Yes or No N/A Yes or No.
(b) Acceleration Time-History data and format: the longitudinal, lateral, and normal acceleration time-history data, as applicable, must be filtered either during the recording phase or during the data downloading phase to include:
(1) The Time Step (TS) that is the inverse of the sampling frequency of the acceleration data and which has units of seconds;
(2) The number of the first point (NFP), which is an integer that when multiplied by the TS equals the time relative to time zero of the first acceleration data point;
(3) The number of the last point (NLP), which is an integer that when multiplied by the TS equals the time relative to time zero of the last acceleration data point; and
(4) NLP—NFP 1 acceleration values sequentially beginning with the acceleration at time NFP * TS and continue sampling the acceleration at TS increments in time until the time NLP * TS is reached.
[73 FR 2183, Jan. 14, 2008]
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