OICA input on definition of corrective steering and automatically commanded steering functions.

The proposal is aimed at ensuring that the English and Russian texts are equivalent. In the English text, which is the original, in paragraph 2.2.27 of Annex 12 the word “travel” is used. The corresponding word in Russian language should be “ход”. The original text was mistranslated into Russian.

Proposal to clarify paragraph 8.1.2. The paragraph aimed to verify that the compensator can accept a difference of the travel when one brake operates in forward direction and the other in rearward direction with a margin of twenty per cent.

UN R13 allows for the exemption of certain vehicles from the requirement for electronic stability controls. This proposal seeks to clarify the scope of the exemptions to include any special purpose vehicle with a non-standard chassis. The change was prompted by a modified vehicle where use of ESC was not feasible, but where the current UN R13 language left doubt as to whether the ESC requirement was applicable. This revised proposal takes into account comments received during the February 2016 GRRF session.

Proposal to introduce technical requirements for Corrective Steering Functions (lane departure prevention, lane-keeping assistance (LKAS), steering angle correction, etc.) as defined in the regulation. The proposal offers four options to ensure appropriate approvals of LKAS and related CSF systems until such time as more precise requirements can be defined:

• Option 1 and option 2: Not to grant any type approvals for corrective steering functions until detailed technical requirements for CSF are incorporated into this Regulation.
• Option 3: Amend the definition of CSF as proposed in this document.
• Option 4: Amend the definition of corrective steering functions and to include technical requirements for LKAS as an ASCF of Category B1 as proposed in this document.

Hyperlink address corrections.

Proposal to reduce the maximum delay for warning a driver of prolonged ‘hands-off driving’ as a function of vehicle speed. The current calculation is based upon 30 seconds (i.e., t(s) = 30(s) * 130/V, where V is the speed of the vehicle in km/h at the time when the system has detected that the driver is no longer holding the steering control). Korea proposes 15 seconds. Additionally t would not be permitted to be greater than 180 seconds.

Proposal on CAT A based on document ACSF-07-07.

French proposal based upon the German proposal (ACSF-08-03)

Industry comment in support of “Option 4” in document GRRF/2016/45, the proposal to introduce technical requirements for Corrective Steering Functions (lane departure prevention, lane-keeping assistance (LKAS), steering angle correction, etc.) as defined in the regulation.

VDA research on warning times and proposing a 30s threshold at lower speeds.

Latest version of the amendment proposed in document GRRF/2016/45 as Option 3 and under discussion within the ACSF informal group

Proposal to align the text with the provisions for anti-lock braking systems used in other regulations, including specific exemptions for certain off-road vehicles as incorporated in UN Regulation No. 13. The proposal clarifies the limits on the use of any temporary ABS deactivation switch and prohibition against permanent disabling of ABS if fitted on a motorcycle.

Document prepared by the ACSF informal group secretary.

Document prepared by the ACSF informal group secretary.

UN R13 allows for the exemption of certain vehicles from the requirement for electronic stability controls. This proposal seeks to clarify the scope of the exemptions to include any special purpose vehicle with a non-standard chassis. The change was prompted by a modified vehicle where use of ESC was not feasible, but where the current UN R13 language left doubt as to whether the ESC requirement was applicable. This revised proposal takes into account comments received during the February 2016 GRRF session.