Automatically Commanded Steering Functions (ACSF)
Reports to GRVA

UN Regulation No. 79 contains provisions for the use of an “automatically commanded steering function” (i.e., automated steering) that restricts use to speeds up to 10 km/h. In light of automated vehicle systems (such as lane keeping assistance) that propose automated steering control at higher speeds, including on highways, the ACSF informal working group was formed to consider amending UN R79 to enable the approval of such higher speed automated steering systems.

In addition to the core system capabilities and performance provisions, the group expects to consider malfunction warning requirements and system testing under periodic technical inspections.

2020 2019 2018 2017 2016 2015
Meetings (25) Documents Regulations ← Back
Documents 2017
4 Jan 2017 Proposed amendments to the consolidated document ACSF-09-16 ACSF-10-04
5 Jan 2017 Revised proposal of amendments to the consolidated document ACSF-09-16 ACSF-10-04/Rev.1
8 Jan 2017 OICA-CLEPA proposal for the functional description of B1+C ACSF systems ACSF-10-05
8 Jan 2017 OICA-CLEPA proposal for category C ACSF systems based on document ACSF-09-14 ACSF-10-06
11 Jan 2017 Revised proposal of amendments to the consolidated document ACSF-09-16 ACSF-10-04/Rev.2
11 Jan 2017 OICA-CLEPA proposal for the functional description of B1+C ACSF systems ACSF-10-05/Rev.1
11 Jan 2017 OICA-CLEPA proposal for category C ACSF systems based on document ACSF-09-14 ACSF-10-06/Rev.1
11 Jan 2017 Proposal of concepts for an automated Emergency Steering Function ACSF-10-08
11 Jan 2017 UN R79: Provision for automated emergency steering functions ACSF-10-07
10 Feb 2017 Consolidated revision of the ACSF amendment to UN R79 pursuant to the 10th ACSF informal group session ACSF-10-11
10 Feb 2017 OICA position on the development of Category C ACSF systems ACSF-10-10
20 Feb 2017 Report of the 9th ACSF informal group session ACSF-09-17/Rev.1
22 Feb 2017 Final agenda for the 10th ACSF informal group session (Revision 1) ACSF-10-02/Rev.2
27 Feb 2017 Draft report of the 10th ACSF informal group session ACSF-10-12
9 Mar 2017 Information for the 11th ACSF informal group session (Berlin, Germany) ACSF-11-01
9 Mar 2017 Information concerning the 12th ACSF informal group session (Seoul, ROK) ACSF-12-01
15 Mar 2017 Germany and Japan proposal for Category C ACSF systems ACSF-11-03
15 Mar 2017 Germany and Japan proposal for sensor range of Category C ACSF systems ACSF-11-04
22 Mar 2017 Amended definitions for Automatically Commanded Steering Functions (ACSF) ACSF-10-13
22 Mar 2017 OICA proposal for the ACSF development roadmap ACSF-11-06
22 Mar 2017 ACSF Category B1 (LKAS) Concern with “Default-on” strategy ACSF-11-05
22 Mar 2017 Interpretations of ACSF warning requirements ACSF-10-14
22 Mar 2017 Draft report of the 10th ACSF informal group session with proposed revisions from OICA ACSF-10-12/Rev.1
22 Mar 2017 Automated Steering Functions: Definitions for Off, Standby and Active ACSF-10-09/Rev.1
28 Mar 2017 Process diagram for Category C ACSF lane-change system with HMI ACSF-11-07/Rev.1
28 Mar 2017 Presentation on the European Commission study on the assessment and certification of automated vehicles ACSF-11-08
28 Mar 2017 European Commission study on the assessment and certification of automated vehicles: Final report ACSF-11-09
28 Mar 2017 Germany and Japan discussion proposals for Category C ACSF ACSF-11-10
30 Mar 2017 Preliminary proposal for Category C ACSF ACSF-11-03/Rev.2
30 Mar 2017 Signalling of ACSF information and warnings ACSF-11-11
23 Apr 2017 Agenda for the 11th ACSF informal group session ACSF-11-02
23 Apr 2017 Common understanding of Category C ACSF ACSF-11-12
3 May 2017 Germany and Japan proposal for Category C ACSF systems ACSF-12-03
10 May 2017 Detecting Range to the Rear by ACSF system of Category C ACSF-12-04
10 May 2017 Proposal of amendments to the terms of reference of the ACSF informal group ACSF-12-05
15 May 2017 Japan proposal for abort of automated lane change maneuver ACSF-12-06
15 May 2017 OICA presentation on ACSF Category C radar sensor range ACSF-12-07
16 May 2017 Revised proposal of concepts for an automated Emergency Steering Function ACSF-10-08/Rev.1
17 May 2017 Germany and Japan proposals for Category C ACSF updated with OICA comments ACSF-12-08
17 May 2017 Summary of the April 26, 2017 meeting on automated driving radar systems ACSF-12-09
18 May 2017 Minimum lane-change distance for automated steering systems ACSF-12-10
22 May 2017 Consolidated document for an Emergency Steering Function after the 12th ACSF informal group session ACSF-12-11
22 May 2017 Consolidated document for C1 category automated steering after the 12th ACSF informal group session ACSF-12-12
29 May 2017 Report of the 11th ACSF informal group session ACSF-11-13/Rev.1
29 May 2017 Provisional agenda for the 12th ACSF informal group session ACSF-12-02/Rev.1
2 Jun 2017 ACSF - Category C1: Definition of sensor range and safety distances ACSF-12-13
6 Jun 2017 Information for the 13th ACSF informal group session (Paris, France) ACSF-13-01/Rev.1
8 Jun 2017 UN R79, Annex 6 and requirements for type approval and periodic technical inspections of motor vehicles ACSF-13-03
9 Jun 2017 Germany and Japan proposals for Category C1 ACSF ACSF-13-04
9 Jun 2017 Required steering control effort to override the directional control of ESF and Category C1 ACSF ACSF-13-05
9 Jun 2017 Netherlands comments on the proposal for an Emergency Steering Function (document ACSF-12-11) ACSF-13-07
9 Jun 2017 Discussion paper on the calculation of safety distance for ACSF C1 lane change systems ACSF-13-08
9 Jun 2017 EC proposal for amendments to draft Category C1 ACSF requirements ACSF-13-09
9 Jun 2017 OICA-CLEPA proposal for amendments to the Emergency Steering Function draft ACSF-13-10
13 Jun 2017 OICA-CLEPA proposal for Category C1 ACSF systems ACSF-13-12
13 Jun 2017 False reaction test for emergency steering functions (ESF) ACSF-13-13
13 Jun 2017 Industry view on ACSF Category C ACSF-13-11
13 Jun 2017 ACSF Category C1 sensor performance requirements and testing ACSF-13-15
19 Jun 2017 Consolidated draft text for ACSF Category C1 system requirements, including homework ACSF-13-16
19 Jun 2017 ESF false-positive testing: Positioning of plastic sheet ACSF-13-14/Rev.1
19 Jun 2017 Consolidated draft text for ACSF-Emergency Steering Function (ESF) requirements, including homework ACSF-13-17
26 Jun 2017 Report of the 12th ACSF informal group session ACSF-12-14/Rev.1
26 Jun 2017 Agenda for the 13th ACSF informal group session ACSF-13-02/Rev.1
5 Jul 2017 Information for the 14th ACSF informal group session ACSF-14-01
24 Aug 2017 Proposal for text concerning rear and side view assistance systems under UN Regulation No. 79 ACSF-14-02
25 Aug 2017 OICA-CLEPA input on the draft Emergency Steering Function (ESF) provisions ACSF-14-07
25 Aug 2017 Presentation on Category C ACSF Tests ACSF-14-06
25 Aug 2017 Draft Proposal for Category C ACSF requirements: OICA-CLEPA homework ACSF-14-04
25 Aug 2017 OICA proposal for Category C2 ACSF systems ACSF-14-05
29 Aug 2017 OICA-CLEPA bench study: ACSF overriding force of 50 N ACSF-14-08
29 Aug 2017 Netherlands comments on the draft text for Category C ACSF systems ACSF-14-09
10 Sep 2017 Draft Proposal for Category C1 ACSF requirements ACSF-14-11
11 Sep 2017 Adopted report of the 13th ACSF informal group session ACSF-13-18
11 Sep 2017 Updated provisional agenda for the 14th ACSF informal group session ACSF-14-03/Rev.1
11 Sep 2017 Scenarios for "hands off" detection by automated steering systems ACSF-14-10
3 Nov 2017 General information for the 15th ACSF informal group session ACSF-15-01
17 Nov 2017 ACSF: Korea proposal for the data filtering method ACSF-15-05
17 Nov 2017 ACSF: Reaction time and Safety time gap on the public road ACSF-15-04
17 Nov 2017 ACSF: Verification of detection range (55 m for L3) ACSF-15-03
20 Nov 2017 ACSF Category C lane-change reaction time ACSF-15-08
21 Nov 2017 ACSF maximum allowable override force ACSF-15-09
22 Nov 2017 Emergency Steering Function (ESF) working document ACSF-15-06/Rev.1
22 Nov 2017 Proposal of amendments to the draft ACSF Category C requirements (GRRF/2017/27) ACSF-15-07/Rev.1
22 Nov 2017 Japan proposal of amendments to GRRF-84-36 ACSF-15-10
22 Nov 2017 ACSF Category C test configurations ACSF-15-11
22 Nov 2017 ACSF lane-change test: Proposal to modify motorcycle specification ACSF-15-12
24 Nov 2017 ACSF Cat C1: Adjustment of the approaching vehicle (Vapp) specifications ACSF-15-13
27 Nov 2017 Sweden proposal for ACSF Cat C lane-change amendment ACSF-15-14
5 Dec 2017 ACSF Cat C and ESF: Preliminary consolidated draft amendment ACSF-15-16/Rev.1
14 Dec 2017 Adopted agenda for the 15th ACSF informal group session ACSF-15-02/Rev.1
14 Dec 2017 Adopted report of the 14th ACSF informal group session ACSF-14-12/Rev.1
14 Dec 2017 Presentation on lane-change reaction times ACSF-15-17
14 Dec 2017 Logistical information for the 16th ACSF session in Tokyo ACSF-16-01