UN R160 Supplement 1 (00 series) · UNECE Regulation No. 160 (ECE R160) — Uniform provisions concerning the approval of motor vehicles with regard to the Event Data Recorder.
UN R160 — Supplement 1 to the 00 series of amendments
Base text → Supplement 1
- What changed
- New paragraph 2.29. defines “Rollover” as any vehicle rotation of 90 degrees or more about any true longitudinal or lateral axis.
- In Annex 4, Table 1, anti-lock braking system activity now has the states “Faulted, Non-Engaged, Engaged”, and stability control has “Faulted, On, Off, Engaged”.
- In Annex 4, Table 1, the recording interval of normal acceleration (post-crash) and vehicle roll angle is now “0 to at least 250 ms”.
- Why
- A definition of “Rollover” is necessary to support the addition of rollover specific recording events.
- The term “Engaged” is aligned with current Part 563 EDR regulations.
- The change to paragraphs 2.14. and 2.15. is to clarify that the required number of power cycles are those determined by the EDR ECU.
Q1What changed42 changes
New definition of “Rollover” and renumbering (paras. 2.29. to 2.54.)
New paragraph 2.29. defines “Rollover” as any vehicle rotation of 90 degrees or more about any true longitudinal or lateral axis. The former paragraphs 2.29. to 2.53. are now paragraphs 2.30. to 2.54.
Definitions of “Vehicle roll rate” and “Vehicle yaw rate” deleted
The definitions of “Vehicle roll rate” and “Vehicle yaw rate” are deleted. Before this supplement, they were paragraphs 2.54. and 2.55.
Ignition cycle counts as determined by the EDR ECU (paras. 2.14. and 2.15.)
Paragraphs 2.14. and 2.15. now add “as determined by the EDR ECU” after “power mode cycles”. Paragraph 2.15. also adds the word “of” after “the number (count)”.
Anti-lock braking activity and system state terms (para. 2.1., Annex 4, Table 1)
Paragraph 2.1. now defines “Anti-lock braking activity” instead of “ABS activity”, and the words “(ABS)” are deleted. In Annex 4, Table 1, “ABS activity” is now “Anti-lock braking system activity”. Its minimum range and resolution are now “Faulted, Non-Engaged, Engaged” instead of “Faulted, Active, Intervening”. For stability control, they are now “Faulted, On, Off, Engaged” instead of “Faulted, On, Off, Intervening”. A new footnote says that “engaged” also means “actively controlling” or “actively intervening”, “non-engaged” also means “on but not controlling”, and “off” also means “deactivated”. The footnote “Manufacturers can include other system states” is deleted.
Recording interval and rollover start time (Annex 4, Table 1)
In Annex 4, Table 1, the recording interval of normal acceleration (post-crash) is now “0 to at least 250 ms” instead of “-1.0 to 5.0 sec”. For vehicle roll angle, it is now “0 to at least 250 ms” instead of “-1.0 up to 5.0 sec”. The footnote “May be recorded in any time duration; -1.0 to 5.0 sec is suggested” is deleted. A new footnote says: “For rollover events the time at which the event is determined to have started as defined by the manufacturer”. The data sample rate of normal acceleration (post-crash) is now “10” instead of “10 Hz”.
Front passenger footnote and data element names (Annex 4, Table 1)
A new footnote in Annex 4, Table 1 says “List this element n times, once for each device”. Several front passenger data elements, for example “Safety belt status, front passenger”, refer to this footnote. The data element “Passenger air bag suppression status” is now “Passenger air bag suppression status, front”. The data element “Complete file recorded (yes, no)” is now “Complete file recorded”.
Wording changes (paras. 1.3., 2.52. and 5.3.2.)
Paragraph 1.3. deletes the word “and” before “date and time of an event”. The definition of “X-direction” in paragraph 2.52. now spells “centreline” instead of “centerline”. Paragraph 5.3.2. now uses “subsequent events” instead of “subsequent event” in the rule on locking the memory for the event.
Q2Why it changed
- Proposed by
- Informal Working Group on EDR/DSSAD
- Working party
- GRSG, 122nd session (October 2021)
Reasons
A definition of “Rollover” is necessary to support the addition of rollover specific recording events.
Source
“Incorporation of a definition for “Rollover” is necessary to support the addition of rollover specific recording events.”
The change to paragraphs 2.14. and 2.15. is to clarify that the required number of power cycles are those determined by the EDR ECU.
Source
“Proposed amendment is necessary to clarify that the required number of power cycles are those determined by the EDR ECU.”
The term “Engaged” is aligned with current Part 563 EDR regulations. It was felt that the term “active” could be misinterpreted as meaning “actively intervening”, when it is intended to mean “able to intervene but not actually intervening”. A footnote was deleted since this is a minimum set and manufacturers can always include other system states.
Sources (3)
“The term “Engaged” is aligned with current Part 563 EDR regulations.”
“it was felt that the term “active” could be misinterpreted as meaning “actively intervening” when it is intended to mean “able to intervene but not actually intervening”.”
“footnote #12 was deleted since this is a minimum set and manufacturers can always include other system states.”
The footnote “List this element n times, once for each device” is necessary to account for the fact that there may be more than one front passenger seating position.
Source
“Proposed amendment is necessary to account for the fact that there may be more than one front passenger seating position.”
Proposer's reason (informal document GRSG-122-36)
The new recording interval makes this requirement more objective by specifying a specific minimum time period. For rollover events, manufacturers employ a variety of triggering methods. For this reason, the manufacturer needs the ability to define the time at which the event is determined to have started.
Submitted by Informal Working Group on EDR/DSSAD. Working party adoption: ECE/TRANS/WP.29/GRSG/101, para. 109.
Sources (2)
“Amendment makes this requirement more objective by specifying a specific minimum time period.”
“for rollover events, manufacturers employ a variety of triggering methods and thus the manufacturer needs the ability to define the time at which the event is determined to have started.”
Document trail
- 2021-08ProposalECE/TRANS/WP.29/GRSG/2021/33Proposal by the Informal Working Group on EDR/DSSAD
- —RevisedGRSG-122-36Proposal to revise ECE/TRANS/WP.29/GRSG/2021/33
- —Working party adoptsECE/TRANS/WP.29/GRSG/101Session report, para. 109
- 2022-01Sent to WP.29ECE/TRANS/WP.29/2022/25/Rev.1Text that GRSG sent to WP.29 and AC.1
- 2022-03WP.29 adoptsECE/TRANS/WP.29/1164Adopted at the 186th session (session report, para. 132)
- 2022-10-08In forceC.N.367.2022.TREATIES-XI.B.16.160UN depositary notification
Q3Who is affected
Vehicle manufacturer
- If recorded, record normal acceleration (post-crash) and vehicle roll angle 0 to at least 250 ms relative to time zero.
- For rollover events, define the time at which the event is determined to have started.
- Where a data element has the footnote “List this element n times, once for each device”, list it once for each device.
- Check that the anti-lock braking system activity and stability control states match the new values in the data element table.
Component supplier
- No direct action for this role.
Technical service / Approval authority
- Be ready to check normal acceleration (post-crash) and vehicle roll angle, if recorded, against “0 to at least 250 ms”.
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ⓘ This report gives advice only. It is not legal or type-approval advice.