GAR | LKAS-02-03

Document Number LKAS-02-03

1	2	3	4
Document title	CLEPA proposal on the Automatically Commanded Steering Function amendment to UN Regulation No. 79
Date	24 Nov 2014
Source(s)	CLEPA
Status
Rulemaking area(s)	UN R79 Steering Equipment UN R178 ELKS
Meeting(s)	LKAS \| Session 2 \| 23-24 Oct 2014 Agenda item 2. LKAS Agenda item 3. (b) Explanation of GRRF-78-14
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Excerpts from session reports related to this document
LKAS \| Session 2 \| 23-24 Oct 2014			The group went through LKAS-02-03 document. Paragraph 5.1.6.2.4. (b): - The group convened that the transient from auto mode to manual mode is a key to the system safety. As there is a need for a certain time, J found the 2 seconds a minimum. There is a need also to find a consensus wording avoiding different interpretations. Yet the different situations should be taken into account, and there is no guarantee that the system can predict the future such in advance. - There was a debate about the origin of the 2-second value, in comparison of the limits adopted at AEBS. Some experts indeed feared that the 2-seconds requirement is too demanding. - Other case: degraded mode - Sub-paragraph (b) in J approach was clarified: it addresses both fault and non-fault conditions; while (b) in CLEPA approach only addresses non-fault conditions (fault conditions are addressed in sub-paragraph (c) ). Paragraph 5.1.6.2.4. (c): - Agreed that the CLEPA proposal addresses the fault conditions Paragraph 5.5.2. - OICA informed having very much challenges with regard to PTI and OBD, and suggested that this PTI item is extracted from AEBS up-to-date regulation. - J was keen to explain a proposal for OBD. - NL supported a text aligned on that of AEBS, having no connector, rather a simple warning lamp. The delegate insisted that PTI should remain a quick and simple check. - CLEPA challenged as well the Japanese approach: no standardized connector, data, protocols, etc. - The European Commission informed about high probability that the EU requires an OBD-X (safety related OBD)