(a) Data elements required for all vehicles. Each vehicle equipped with an EDR must record all of the data elements listed in Table I, during the interval/time and at the sample rate specified in that table.
Table I--Data Elements Required for All Vehicles Equipped With an EDR------------------------------------------------------------------------
Recording interval/time Data sample
Data element \1\ (relative to time rate (samples
zero) per second)------------------------------------------------------------------------Delta-V, longitudinal.......... 0 to 250 ms or 0 to End 100
of Event Time plus 30
ms, whichever is
shorter.Maximum delta-V, longitudinal.. 0-300 ms or 0 to End of N/A
Event Time plus 30 ms,
whichever is shorter.Time, maximum delta-V.......... 0-300 ms or 0 to End of N/A
Event Time plus 30 ms,
whichever is shorter.Speed, vehicle indicated....... -5.0 to 0 sec.......... 2Engine throttle, % full (or -5.0 to 0 sec.......... 2
accelerator pedal, % full).Service brake, on/off.......... -5.0 to 0 sec.......... 2Ignition cycle, crash.......... -1.0 sec............... N/AIgnition cycle, download....... At time of download \3\ N/ASafety belt status, driver..... -1.0 sec............... N/AFrontal air bag warning lamp, -1.0 sec............... N/A
on/off \2\.Frontal air bag deployment, Event.................. N/A
time to deploy, in the case of
a single stage air bag, or
time to first stage
deployment, in the case of a
multi-stage air bag, driver.Frontal air bag deployment, Event.................. N/A
time to deploy, in the case of
a single stage air bag, or
time to first stage
deployment, in the case of a
multi-stage air bag, right
front passenger.Multi-event, number of event... Event.................. N/ATime from event 1 to 2......... As needed.............. N/AComplete file recorded (yes, Following other data... N/A
no).------------------------------------------------------------------------\1\ Pre-crash data and crash data are asynchronous. The sample time
accuracy requirement for pre-crash time is -0.1 to 1.0 sec (e.g., T =
1 would need to occur between -1.1 and 0 seconds.)\2\ The frontal air bag warning lamp is the readiness indicator
specified in S4.5.2 of FMVSS No. 208, and may also illuminate to
indicate a malfunction in another part of the deployable restraint
system.\3\ The ignition cycle at the time of download is not required to be
recorded at the time of the crash, but shall be reported during the
download process.
(b) Data elements required for vehicles under specified conditions. Each vehicle equipped with an EDR must record each of the data elements listed in column 1 of Table II for which the vehicle meets the condition specified in column 2 of that table, during the interval/time and at the sample rate specified in that table.
Table II--Data Elements Required for Vehicles Under Specified Minimum Conditions----------------------------------------------------------------------------------------------------------------
Recording interval/time Data sample
Data element name Condition for requirement \1\ (relative to time rate (per
zero) second)----------------------------------------------------------------------------------------------------------------Lateral acceleration.................... If recorded \2\........... N/A....................... N/ALongitudinal acceleration............... If recorded............... N/A....................... N/ANormal acceleration..................... If recorded............... N/A....................... N/A
Delta-V, lateral........................ If recorded............... 0-250 ms or 0 to End of 100
Event Time plus 30 ms,
whichever is shorter.Maximum delta-V, lateral................ If recorded............... 0-300 ms or 0 to End of N/A
Event Time plus 30 ms,
whichever is shorter.Time maximum delta-V, lateral........... If recorded............... 0-300 ms or 0 to End of N/A
Event Time plus 30 ms,
whichever is shorter.Time for maximum delta-V, resultant..... If recorded............... 0-300 ms or 0 to End of N/A
Event Time plus 30 ms,
whichever is shorter.Engine rpm.............................. If recorded............... -5.0 to 0 sec............. 2Vehicle roll angle...................... If recorded............... -1.0 up to 5.0 sec \3\.... 10ABS activity (engaged, non-engaged)..... If recorded............... -5.0 to 0 sec............. 2Stability control (on, off, or engaged). If recorded............... -5.0 to 0 sec............. 2Steering input.......................... If recorded............... -5.0 to 0 sec............. 2Safety belt status, right front If recorded............... -1.0 sec.................. N/A
passenger (buckled, not buckled).Frontal air bag suppression switch If recorded............... -1.0 sec.................. N/A
status, right front passenger (on, off,
or auto).Frontal air bag deployment, time to nth If equipped with a Event..................... N/A
stage, driver \4\. driver's frontal air bag
with a multi-stage
inflator.Frontal air bag deployment, time to nth If equipped with a right Event..................... N/A
stage, right front passenger \4\. front passenger's frontal
air bag with a multi-
stage inflator.Frontal air bag deployment, nth stage If recorded............... Event..................... N/A
disposal, driver, Y/N (whether the nth
stage deployment was for occupant
restraint or propellant disposal
purposes).Frontal air bag deployment, nth stage If recorded............... Event..................... N/A
disposal, right front passenger, Y/N
(whether the nth stage deployment was
for occupant restraint or propellant
disposal purposes).Side air bag deployment, time to deploy, If recorded............... Event..................... N/A
driver.Side air bag deployment, time to deploy, If recorded............... Event..................... N/A
right front passenger.Side curtain/tube air bag deployment, If recorded............... Event..................... N/A
time to deploy, driver side.Side curtain/tube air bag deployment, If recorded............... Event..................... N/A
time to deploy, right side.Pretensioner deployment, time to fire, If recorded............... Event..................... N/A
driver.Pretensioner deployment, time to fire, If recorded............... Event..................... N/A
right front passenger.Seat track position switch, foremost, If recorded............... -1.0 sec.................. N/A
status, driver.Seat track position switch, foremost, If recorded............... -1.0 sec.................. N/A
status, right front passenger.Occupant size classification, driver.... If recorded............... -1.0 sec.................. N/AOccupant size classification, right If recorded............... -1.0 sec.................. N/A
front passenger.Occupant position classification, driver If recorded............... -1.0 sec.................. N/AOccupant position classification, right If recorded............... -1.0 sec.................. N/A
front passenger.----------------------------------------------------------------------------------------------------------------\1\ Pre-crash data and crash data are asynchronous. The sample time accuracy requirement for pre-crash time is -
0.1 to 1.0 sec (e.g. T = -1 would need to occur between -1.1 and 0 seconds.)\2\ ``If recorded'' means if the data is recorded in non-volatile memory for the purpose of subsequent
downloading.\3\ ``vehicle roll angle'' may be recorded in any time duration; -1.0 sec to 5.0 sec is suggested.\4\ List this element n - 1 times, once for each stage of a multi-stage air bag system. [73 FR 2181, Jan. 14, 2008, 73 FR 8408, Feb. 13, 2008, as amended at 76 FR 47486, Aug. 5, 2011]