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GRVA agreed to resume consideration of the two alternative amendment proposals to UN Regulation No. 13, tabled by the experts from France and OICA, aimed at including all four axles with two power-driven rear axles in the scope of the mandatory installation of a vehicle stability function.
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GRVA/2023/2 | UN R13: Proposal for a new series of amendments
GRVA-15-56 | UN R13: Proposal for the 13 series of amendments
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UN R13: Proposal for the 13 series of amendments
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Reference Number: GRVA-15-56
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Text prepared by the GRVA secretary, based on GRVA/2023/2 as adopted by GRVA during the 15th session, to highlight amendments to the approval number and marking provisions with regard to the series of amendments.
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Meeting Sessions: 15th GRVA session (23-27
Jan 2023)
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Document date: 27 Jan 23
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Document status: Superseded
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Relevant to
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View full document file for more information
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GRVA-15-56 | UN R13: Proposal for the 13 series of amendments
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UN R13: Proposal for the 13 series of amendments
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Reference Number: GRVA-15-56
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Text prepared by the GRVA secretary, based on GRVA/2023/2 as adopted by GRVA during the 15th session, to highlight amendments to the approval number and marking provisions with regard to the series of amendments.
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Meeting Sessions: 15th GRVA session (23-27
Jan 2023)
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Document date: 27 Jan 23
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Document status: Superseded
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Relevant to
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View full document file for more information
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GRVA-15-56 | UN R13: Proposal for the 13 series of amendments
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UN R13: Proposal for the 13 series of amendments
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Reference Number: GRVA-15-56
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Text prepared by the GRVA secretary, based on GRVA/2023/2 as adopted by GRVA during the 15th session, to highlight amendments to the approval number and marking provisions with regard to the series of amendments.
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Meeting Sessions: 15th GRVA session (23-27
Jan 2023)
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Document date: 27 Jan 23
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Document status: Superseded
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Relevant to
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View full document file for more information
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GRVA-15-08 | UN R13: Proposal for amendments
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UN R13: Proposal for amendments
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Reference Number: GRVA-15-08
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Proposal for amendments to Annex 18 regarding special requirements for electronic control systems and for related transitional provisions for its entry into force.
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Submitted by: UK
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Meeting Sessions: 15th GRVA session (23-27
Jan 2023)
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Document date: 05 Jan 23
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Document status: Superseded
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Relevant to
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View full document file for more information
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GRVA-15-56 | UN R13: Proposal for the 13 series of amendments
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UN R13: Proposal for the 13 series of amendments
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Reference Number: GRVA-15-56
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Text prepared by the GRVA secretary, based on GRVA/2023/2 as adopted by GRVA during the 15th session, to highlight amendments to the approval number and marking provisions with regard to the series of amendments.
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Meeting Sessions: 15th GRVA session (23-27
Jan 2023)
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Document date: 27 Jan 23
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Document status: Superseded
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Relevant to
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View full document file for more information
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GRVA-15-56 | UN R13: Proposal for the 13 series of amendments
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UN R13: Proposal for the 13 series of amendments
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Reference Number: GRVA-15-56
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Text prepared by the GRVA secretary, based on GRVA/2023/2 as adopted by GRVA during the 15th session, to highlight amendments to the approval number and marking provisions with regard to the series of amendments.
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Meeting Sessions: 15th GRVA session (23-27
Jan 2023)
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Document date: 27 Jan 23
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Document status: Superseded
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Relevant to
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View full document file for more information
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GRVA-15-56 | UN R13: Proposal for the 13 series of amendments
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UN R13: Proposal for the 13 series of amendments
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Reference Number: GRVA-15-56
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Text prepared by the GRVA secretary, based on GRVA/2023/2 as adopted by GRVA during the 15th session, to highlight amendments to the approval number and marking provisions with regard to the series of amendments.
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Meeting Sessions: 15th GRVA session (23-27
Jan 2023)
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Document date: 27 Jan 23
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Document status: Superseded
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Relevant to
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View full document file for more information
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GRVA-15-56 | UN R13: Proposal for the 13 series of amendments
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UN R13: Proposal for the 13 series of amendments
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Reference Number: GRVA-15-56
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Text prepared by the GRVA secretary, based on GRVA/2023/2 as adopted by GRVA during the 15th session, to highlight amendments to the approval number and marking provisions with regard to the series of amendments.
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Meeting Sessions: 15th GRVA session (23-27
Jan 2023)
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Document date: 27 Jan 23
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Document status: Superseded
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Relevant to
|
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View full document file for more information
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GRVA-15-56 | UN R13: Proposal for the 13 series of amendments
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UN R13: Proposal for the 13 series of amendments
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Reference Number: GRVA-15-56
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Text prepared by the GRVA secretary, based on GRVA/2023/2 as adopted by GRVA during the 15th session, to highlight amendments to the approval number and marking provisions with regard to the series of amendments.
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Meeting Sessions: 15th GRVA session (23-27
Jan 2023)
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Document date: 27 Jan 23
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Document status: Superseded
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Relevant to
|
|
View full document file for more information
|
GRVA-15-56 | UN R13: Proposal for the 13 series of amendments
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UN R13: Proposal for the 13 series of amendments
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Reference Number: GRVA-15-56
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Text prepared by the GRVA secretary, based on GRVA/2023/2 as adopted by GRVA during the 15th session, to highlight amendments to the approval number and marking provisions with regard to the series of amendments.
|
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Meeting Sessions: 15th GRVA session (23-27
Jan 2023)
|
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Document date: 27 Jan 23
|
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Document status: Superseded
|
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Relevant to
|
|
View full document file for more information
|
GRVA-15-56 | UN R13: Proposal for the 13 series of amendments
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UN R13: Proposal for the 13 series of amendments
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Reference Number: GRVA-15-56
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Text prepared by the GRVA secretary, based on GRVA/2023/2 as adopted by GRVA during the 15th session, to highlight amendments to the approval number and marking provisions with regard to the series of amendments.
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Meeting Sessions: 15th GRVA session (23-27
Jan 2023)
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Document date: 27 Jan 23
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Document status: Superseded
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Relevant to
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View full document file for more information
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| Other documents |
GRVA-15-55 | UN R140: Proposal to amend provisions for steering amplitude
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UN R140: Proposal to amend provisions for steering amplitude
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Reference Number: GRVA-15-55
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Proposal to add the text, "In case that saturation of the front tyres happens before the above calculated magnitude angle, this angle may be used as the final steering amplitude, but only if this angle is greater or equal to 6.5 A.” based on the following justification: - Reaching fixed amplitude, i.e., fixed steering wheel angular speed due to given 0.7 Hz sine frequency, needs much more torque with quick steering gear ratio systems than with slow steering gear ratio systems, and produces much more wheel steer.
- Car behavior (yaw rate, lateral acceleration and thus trajectory) is similar for all amplitudes above approx. 7 to 8 A (i.e., more than 7 times the steering wheel angle corresponding to 0.3 g), because front tires are saturated. More steer of the tires doesn’t provide more lateral force, so yaw rate and lateral acceleration don’t increase. Continuing to increase steering wheel amplitude after front tire saturation doesn’t give more information.
- There might appear in the future some vehicles which have significantly low steering gear ratio (i.e., quick steering characteristics) and may need too much steering wheel torque to achieve the 270 degrees sine amplitude at 0.7 Hz (not reachable by conventional steering robots), then jeopardizing the easy approval of future beneficial steering equipment e.g. steering-by-wire systems.
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Submitted by: OICA
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Meeting Sessions: 15th GRVA session (23-27
Jan 2023)
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Document date: 27 Jan 23
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Document status: Superseded
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Relevant to
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View full document file for more information
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