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.

Proposal, consolidating document GRRF-82-08 with the proposed test procedures, revising “option 4” as presented in the proposal introduce technical requirements for Corrective Steering Functions under UN R79 (document GRRF/2016/45). Option 4 proposes to amend the definition of corrective steering functions and to include technical requirements for LKAS as an ASCF of Category B1. The proposal includes:

• Clarification of Corrective steering function (CSF) incl. defining of new requirements;
• Establishment of new categories for automatically commanded steering function (ACSF): Categories A, B1, B2, C, D and E;
• Wording for requirements of Category A (incl. remote parking RCP), and Category B1.

Updated version of the draft amendment to introduce provisions for corrective steering and Category B1 ACSF into UN R79 based upon discussions held during the afternoon GRRF session of 21 September.