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Working Party on General Safety | Session 115 | 9-12 Oct 2018
Geneva
9. (b) UN Regulation No. 110 (CNG and LNG vehicles)

GRSG is expected to be informed by the expert from Germany who is leading the Task Force to review the amendments proposed to UN Regulation No. 110 on the basis of ECE/TRANS/WP.29/GRSG/2017/29. Thus, GRSG may wish to consider ECE/TRANS/WP.29/GRSG/2018/16 tabled by Italy, proposing to amend Annex 3A of the Regulation, i.e. the test requirements for the periodic requalification of CNG cylinders to avoid structural failures during their service life, including new provisions for a mandatory impact damage test for all cylinders without the use of shoulder pads.

GRSG/2017/29 | Proposal for amendments to Regulation No. 110 Proposal to require, in instances where ogive protective covers are fitted to a cylinder, that the covers be removed before conducting the impact damage (drop) test.
GRSG/2018/16 | UN R110: Proposal for amendments Proposal to require, in instances where ogive protective covers are fitted to a cylinder, that the covers be removed before conducting the impact damage (drop) test.

GRSG agreed to consider in detail a proposal by the Netherlands to insert into the Regulation new requirements for components used in LNG/CNG systems such as the “CNG accumulator” and the “CNG compressor” (ECE/TRANS/WP.29/GRSG/2018/11). GRSG also agreed to revisit a proposal by the Netherlands to allow the use of gas fuelled generators to provide electrical power for accessories or other vehicle systems (ECE/TRANS/WP.29/GRSG/2018/12).

GRSG/2018/11 | UN R110: Proposal for Supplement 2 to the 03 series of amendments Proposal to introduce requirements for CNG compressor and CNG accumulator components designed to maintain stable pressure in fuel systems.
GRSG/2018/12 | UN R110: Proposal for Supplement 2 to the 03 series of amendments Proposal to allow the use of a generator fueled by the vehicle gaseous fuel system that provides electricity to run accessories (e.g., overnight power in sleeper cabs, to maintain battery charge during high electrical power use with loading or lifting equipment). This proposal would allow for the use of LNG/CNG from vehicle fuel tanks and thereby reduce the potential need to vent gas into the air in response to pressure buildup due to warming over time by using the gas to power other devices and equipment.

GRSG may wish to consider a proposal (ECE/TRANS/WP.29/GRSG/2018/13) by the International Organization of Motor Vehicle Manufacturers (OICA) to adapt the text of the Regulation to the current technology on the gas flow adjustor in the carburettor or injector.

GRSG/2018/13 | UN R110: Proposal for a Supplement to the 02 and 03 series of amendments Proposal to amend and clarify the need for a gas flow adjuster under UN R110 with regard to the use of carburetors and fuel injectors. A gas flow adjuster is not necessary when an electronic fuel injection system manages the air/fuel mixture and therefore should be removed from paragraph 18.3.1. An adjuster is needed when air/fuel mixture runs via a carburetor and therefore should be added to paragraph 18.3.2.
GRSG-115-06 | UN R110: Suggestion for changes to ECE/TRANS/WP.29/GRSG/2018/16 Proposal for clarifications and editorial improvements to the draft amendment to require, in instances where that ogive covers be removed before conducting the impact damage (drop) test.
GRSG-115-18/Rev.2 | UN R110: Proposal for amendments to the 03 series of amendments Proposal prepared by OICA per decisions by the task force on gas-fuelled vehicle regulations to resolve issues associated with periodic requalification of CNG cylinders. The proposal amends Annexes 3A and 3B, particularly to state "Contracting Parties requiring a more frequent (than every 48 months) or more stringent periodic requalification of cylinders may do so in accordance with the national or regional requirements."
GRSG-115-19 | UN R110: Proposal for the 04 series of amendments This proposal introduces transitional provisions into UN Regulation No. 110 should the proposals in document GRSG/2018/11 be adopted. GRSG/2018/11 would change the technical requirements for vehicles equipped with CNG compressors and/or accumulators and therefore would transitional provisions be applicable.
GRSG/2018/16 | UN R110: Proposal for amendments Proposal to require, in instances where ogive protective covers are fitted to a cylinder, that the covers be removed before conducting the impact damage (drop) test.
GRSG/2018/13 | UN R110: Proposal for a Supplement to the 02 and 03 series of amendments Proposal to amend and clarify the need for a gas flow adjuster under UN R110 with regard to the use of carburetors and fuel injectors. A gas flow adjuster is not necessary when an electronic fuel injection system manages the air/fuel mixture and therefore should be removed from paragraph 18.3.1. An adjuster is needed when air/fuel mixture runs via a carburetor and therefore should be added to paragraph 18.3.2.
GRSG/2018/11 | UN R110: Proposal for Supplement 2 to the 03 series of amendments Proposal to introduce requirements for CNG compressor and CNG accumulator components designed to maintain stable pressure in fuel systems.
GRSG/2018/12 | UN R110: Proposal for Supplement 2 to the 03 series of amendments Proposal to allow the use of a generator fueled by the vehicle gaseous fuel system that provides electricity to run accessories (e.g., overnight power in sleeper cabs, to maintain battery charge during high electrical power use with loading or lifting equipment). This proposal would allow for the use of LNG/CNG from vehicle fuel tanks and thereby reduce the potential need to vent gas into the air in response to pressure buildup due to warming over time by using the gas to power other devices and equipment.
GRSG-115-05
Report of the 2nd Task Force on "gas-fueled vehicle regulations" meeting session
21 Sep 2018 Working Party Informal Documents Liquefied Petroleum Gas Equipment LPG Equipment Uniform Provisions Concerning the Approval of: I. Specific Equipment of Motor Vehicles Using Liquefied Petroleum Gases in their Propulsion System II. A Vehicle Fitted with Specific Equipment for the Use of Liquefied Petroleum Gases in its Propulsion System with regard to the Installation of such Equipment Compressed and Liquefied Natural Gas System Components CNG/LNG System Components Uniform Provisions Concerning the Approval of: I. Specific components of motor vehicles using compressed natural gas (CNG) and/or liquefied natural gas (LNG) in their propulsion system; II. Vehicles with regard to the installation of specific components of an approved type for the use of compressed natural gas (CNG) and/or liquefied natural gas (LNG) in their propulsion system. GRSG-115-0005
GRSG-115-06
UN R110: Suggestion for changes to ECE/TRANS/WP.29/GRSG/2018/16 (Netherlands and NGV)
07 Oct 2018 Working Party Informal Documents Compressed and Liquefied Natural Gas System Components CNG/LNG System Components Uniform Provisions Concerning the Approval of: I. Specific components of motor vehicles using compressed natural gas (CNG) and/or liquefied natural gas (LNG) in their propulsion system; II. Vehicles with regard to the installation of specific components of an approved type for the use of compressed natural gas (CNG) and/or liquefied natural gas (LNG) in their propulsion system. Proposal for clarifications and editorial improvements to the draft amendment to require, in instances where that ogive covers be removed before conducting the impact damage (drop) test. GRSG-115-0006
GRSG-115-18/Rev.2
UN R110: Proposal for amendments to the 03 series of amendments (OICA)
15 Oct 2018 Working Party Informal Documents Compressed and Liquefied Natural Gas System Components CNG/LNG System Components Uniform Provisions Concerning the Approval of: I. Specific components of motor vehicles using compressed natural gas (CNG) and/or liquefied natural gas (LNG) in their propulsion system; II. Vehicles with regard to the installation of specific components of an approved type for the use of compressed natural gas (CNG) and/or liquefied natural gas (LNG) in their propulsion system. Proposal prepared by OICA per decisions by the task force on gas-fuelled vehicle regulations to resolve issues associated with periodic requalification of CNG cylinders. The proposal amends Annexes 3A and 3B, particularly to state "Contracting Parties requiring a more frequent (than every 48 months) or more stringent periodic requalification of cylinders may do so in accordance with the national or regional requirements." GRSG-115-0018/Rev.2
GRSG-115-19
UN R110: Proposal for the 04 series of amendments (OICA)
11 Oct 2018 Working Party Informal Documents Compressed and Liquefied Natural Gas System Components CNG/LNG System Components Uniform Provisions Concerning the Approval of: I. Specific components of motor vehicles using compressed natural gas (CNG) and/or liquefied natural gas (LNG) in their propulsion system; II. Vehicles with regard to the installation of specific components of an approved type for the use of compressed natural gas (CNG) and/or liquefied natural gas (LNG) in their propulsion system. This proposal introduces transitional provisions into UN Regulation No. 110 should the proposals in document GRSG/2018/11 be adopted. GRSG/2018/11 would change the technical requirements for vehicles equipped with CNG compressors and/or accumulators and therefore would transitional provisions be applicable. GRSG-115-0019
GRSG/2018/11
UN R110: Proposal for Supplement 2 to the 03 series of amendments (Netherlands)
24 Jul 2018 Working Party Formal Documents Compressed and Liquefied Natural Gas System Components CNG/LNG System Components Uniform Provisions Concerning the Approval of: I. Specific components of motor vehicles using compressed natural gas (CNG) and/or liquefied natural gas (LNG) in their propulsion system; II. Vehicles with regard to the installation of specific components of an approved type for the use of compressed natural gas (CNG) and/or liquefied natural gas (LNG) in their propulsion system. Proposal to introduce requirements for CNG compressor and CNG accumulator components designed to maintain stable pressure in fuel systems. GRSG/2018/0011
GRSG/2018/12
UN R110: Proposal for Supplement 2 to the 03 series of amendments (Netherlands)
24 Jul 2018 Working Party Formal Documents Compressed and Liquefied Natural Gas System Components CNG/LNG System Components Uniform Provisions Concerning the Approval of: I. Specific components of motor vehicles using compressed natural gas (CNG) and/or liquefied natural gas (LNG) in their propulsion system; II. Vehicles with regard to the installation of specific components of an approved type for the use of compressed natural gas (CNG) and/or liquefied natural gas (LNG) in their propulsion system. Proposal to allow the use of a generator fueled by the vehicle gaseous fuel system that provides electricity to run accessories (e.g., overnight power in sleeper cabs, to maintain battery charge during high electrical power use with loading or lifting equipment). This proposal would allow for the use of LNG/CNG from vehicle fuel tanks and thereby reduce the potential need to vent gas into the air in response to pressure buildup due to warming over time by using the gas to power other devices and equipment. GRSG/2018/0012
GRSG/2018/13
UN R110: Proposal for a Supplement to the 02 and 03 series of amendments (OICA)
24 Jul 2018 Working Party Formal Documents Compressed and Liquefied Natural Gas System Components CNG/LNG System Components Uniform Provisions Concerning the Approval of: I. Specific components of motor vehicles using compressed natural gas (CNG) and/or liquefied natural gas (LNG) in their propulsion system; II. Vehicles with regard to the installation of specific components of an approved type for the use of compressed natural gas (CNG) and/or liquefied natural gas (LNG) in their propulsion system. Proposal to amend and clarify the need for a gas flow adjuster under UN R110 with regard to the use of carburetors and fuel injectors. A gas flow adjuster is not necessary when an electronic fuel injection system manages the air/fuel mixture and therefore should be removed from paragraph 18.3.1. An adjuster is needed when air/fuel mixture runs via a carburetor and therefore should be added to paragraph 18.3.2. GRSG/2018/0013
GRSG/2018/16
UN R110: Proposal for amendments (Italy)
24 Jul 2018 Working Party Formal Documents Compressed and Liquefied Natural Gas System Components CNG/LNG System Components Uniform Provisions Concerning the Approval of: I. Specific components of motor vehicles using compressed natural gas (CNG) and/or liquefied natural gas (LNG) in their propulsion system; II. Vehicles with regard to the installation of specific components of an approved type for the use of compressed natural gas (CNG) and/or liquefied natural gas (LNG) in their propulsion system. Proposal to require, in instances where ogive protective covers are fitted to a cylinder, that the covers be removed before conducting the impact damage (drop) test. GRSG/2018/0016
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