[Code of Federal Regulations]
[Title 49, Volume 6]
[Revised as of October 1, 2006]
From the U.S. Government Printing Office via GPO Access
[CITE: 49CFR563.8]
[Page 170-172]
TITLE 49--TRANSPORTATION
CHAPTER V--NATIONAL HIGHWAY TRAFFIC
SAFETY ADMINISTRATION, DEPARTMENT
OF TRANSPORTATION
PART 563_EVENT DATA RECORDERS--Table of Contents
Sec. 563.8 Data format.
(a) The data elements listed in Tables I and II, as applicable, must
be recorded in accordance with the range, accuracy, resolution, and
filter class specified in Table III.
Table III.--Recorded Data Element Format
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Data element Range Accuracy Resolution Filter class
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Lateral acceleration............ -50 g to + 50 g... 5%. Class 60.
Longitudinal acceleration....... -50 g to + 50 g... 5%. Class 60.
Normal Acceleration............. -50 g to + 50 g... 5%. Class 60.
Longitudinal delta-V............ -100 km/h + 100 km/ 5%.
Lateral delta-V................. -100 km/h to + 100 5%.
Maximum delta-V, longitudinal... + 100 km/h + 100 5%.
Maximum delta-V, lateral........ -100 km/h to + 100 5%.
Time, maximum delta-V, 0-300 ms.......... 3 ms.
Time, maximum delta-V, lateral.. 0-300 ms.......... 3 ms.
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Time, maximum delta-V, resultant 0-300 ms.......... 3 ms.
Vehicle Roll Angle.............. -1080 deg to + 10 deg.
Speed, vehicle indicated........ 0 km/h to 200 km/h 1 km/h.
Engine throttle, percent full 0 to 100%......... 5%.
full).
Engine rpm...................... 0 to 10,000 rpm... 100 rpm.
Service brake, on, off.......... On and Off........ N.A............... On and Off........ N.A.
ABS activity.................... On and Off........ N.A............... On and Off........ N.A.
Stability control (on, off, On, Off, Engaged.. N.A............... On, Off, Engaged.. N.A.
engaged).
Steering wheel angle............ -250 deg CW to + 5 deg.
Ignition cycle, crash........... 0 to 60,000....... 1 cycle.
Ignition cycle, download........ 0 to 60,000....... 1 cycle.
Safety belt status, driver...... On or Off......... N.A............... On or Off......... N.A.
Safety belt status, right front On or Off......... N.A............... On or Off......... N.A.
passenger.
Frontal air bag warning lamp On or Off......... N.A............... On or Off......... N.A.
(on, off).
Frontal air bag suppression On or Off......... N.A............... On or Off......... N.A.
switch status.
Frontal air bag deployment, time 0 to 250 ms....... 2 ms.
Frontal air bag deployment, time 0 to 250 ms....... 2 ms.
front passenger.
Frontal air bag deployment, time 0 to 250 ms....... 2 ms.
Frontal air bag deployment, time 0 to 250 ms....... 2 ms.
passenger.
Frontal air bag deployment, nth Yes/No............ N.A............... Yes/No............ N.A.
stage disposal, driver, y/n.
Frontal air bag deployment, nth Yes/No............ N.A............... Yes/No............ N.A.
stage disposal, right front
passenger, y/n.
Side air bag deployment, time to 0 to 250 ms....... 2 ms.
Side air bag deployment, time to 0 to 250 ms....... 2 ms.
Side curtain/tube air bag 0 to 250 ms....... 2 ms.
driver side.
Side curtain/tube air bag 0 to 250 ms....... 2 ms.
right side.
Pretensioner deployment, time to 0 to 250 ms....... 2 ms.
Pretensioner deployment, time to 0 to 250 ms....... 2 ms.
Seat track position switch, Yes/No............ N.A............... Yes/No............ N.A.
foremost, status, driver.
Seat track position switch, Yes/No............ N.A............... Yes/No............ N.A.
foremost, status, right front
passenger.
Occupant size driver occupant Yes/No............ N.A............... Yes/No............ N.A.
5th female size y/n.
Occupant size right front Yes/No............ N.A............... Yes/No............ N.A.
passenger child y/n.
Occupant position Yes/No............ N.A............... Yes/No............ N.A.
classification, driver oop y/n.
Occupant position Yes/No............ N.A............... Yes/No............ N.A.
classification, right front
passenger oop y/n.
Multi-event, number of events 1 or 2............ N.A............... 1 or 2............ N.A.
(1, 2).
Time from event 1 to 2.......... 0 to 5.0 sec...... 0.1 sec........... 0.1 sec........... N.A.
Complete file recorded (yes/no). Yes/No............ N.A............... Yes/No............ N.A.
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\1\ Incorporated by reference, see Sec. 563.4.
[[Page 172]]
(b) Acceleration Time-History data and format: The longitudinal,
lateral, and normal acceleration time-history data, as applicable, must
be filtered in accordance with the filter class specified in Table III
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.