This document is a working draft describing the complementary specifications to R49 (Revision 6-6 series of amendments) in order to enable the type approval of new EURO VI heavy duty dual-fuel engines and vehicles. The document is under review within the GFV.

GFV informal group draft of proposed amendments aimed at redefining the class of bi-fuel vehicles to permit the
simultaneous use of gas and petrol in gas mode. This draft was submitted to the Working Party on Pollution and Energy for its 63rd session as document GRPE-63-06.

Status report of the HDDF task force for presentation to the Working Party on Pollution and Energy during its 63rd session.

Draft of the proposed amendments are aimed at redefining the class of bi-fuel vehicles to permit the simultaneous use of gas and petrol in gas mode. This proposal was submitted to the Working Party on Pollution and Energy as document GRPE-63-05.

Report from the January 17, 2012 session of the Gaseous-Fuelled Vehicles Informal Group.

Agenda for the Gaseous Fueled Vehicles meeting on heavy-duty dual fuels and Euro 6.

Complementary specifications, as adopted by the gaseous fueled vehicles informal group at its 19th session, to UN R49: Revision 6/06 series of amendments) in order to enable the type approval of new EURO VI heavy duty dual-fuel engines and vehicles.

Comments from Poland on the Gaseous Fueled Vehicles (GFV) informal group proposal to redefine the class of bi-fuel vehicles under UN R83 in order to permit the simultaneous use of gas and petrol while in gas mode.

Comments from Poland on the Gaseous Fueled Vehicles (GFV) informal group proposal to redefine the class of bi-fuel vehicles under UN R115 in order to permit the simultaneous use of gas and petrol while in gas mode.

GFV overview of existing emission definitions applicable to light and heavy duty vehicles in EU and UNECE legislation, including certain definitions currently (February 2012) under discussion, in order to identify possible inconsistencies.

Draft agenda for the joint meeting of the Informal Group on Gaseous Fuel Vehicles
and its Heavy Duty Dual-Fuel Task Force.

Minutes of the meeting of the Informal Group on Gaseous Fuel Vehicles held jointly with the Heavy Duty Dual-Fuel Task Force.

GFV informal group input for a revision of the THC and methane (CH4) emission limits for vehicles equipped with engines running on natural gas (Euro 6 Light Duty Vehicles and Euro VI Heavy Duty Engines).

Proposal from the GFV informal group concerning definitions for mono-fuel and bi-fuel vehicles, for engine start-up in petrol mode, and provisions for petrol direct-injection engines under UN R115.

The current Euro 6 light duty vehicle emission limits for total hydrocarbons (THC)
include the methane fraction as well as non-methane hydrocarbon emissions. When the
Euro 5/6 co-decision proposal was negotiated, an NMHC limit value was added but the
THC limit was unchanged and is too restrictive.

The proposed amendments are aimed at redefining the class of bi-fuel vehicles to permit the simultaneous use of gas and petrol in gas mode. This submission follows the review by CLEPA members of the draft proposal (GRPE/2012/6).

Consolidated proposal from the GFV Task Force on Heavy-duty Dual-fuel vehicles for an amendment to Regulation No. 49 in view of type-approving such vehicles.

Progress report of the LNG Task Force created to develop technical specifications for LNG (Liquefied Natural Gas) cryogenic components to be installed on-board road vehicles.

Documents GRPE/2012/6 and 7 introduce the calculation of NG/biomethane energy ratio during a type I cycle by weighing the NG/biomethane mass consumed. The formulas are affected by an error when G25 reference fuel is used. This proposal precribes a modification to the previous formulas.

Copy of the GRPE submission prepared by the GFV Chair of the informal group to correct a measurement error contained in documents GRPE/2012/6 (concerning UN R83) and GRPE/2012/7 (concerning UN R115) when weighing method and G25 reference fuel are used.

Document GRPE/2012/13/Rev.1. contains amendments to Regulation No. 49 considered necessary to type-approve heavy-duty dual-fuel engines and vehicles, except for appendixes 3, 4, 5 and 6 of Annex 15. This document provides the missing appendices and offers editorial corrections to UN R49.

Working draft of the document consolidating working document GRPE/2012/13/Rev.1 with the pending informal documents GRPE-64-xx1 (completing the working document) and GRPE-64-xx2 (correcting the working document).

Revised version of document GRPE-62-17 prepared by the chair of the GFV informal group in order to extend the scope of Regulation No. 85 to include heavy-duty dual-fuel (diesel-gas) engines.

Document GRPE/2012/13/Rev.1. contains all the major amendments to Regulation No. 49 that are considered necessary to type approve heavy-Duty dual-fuel engines and vehicles, except appendixes 3, 4, 5 and 6 of Annex 15. This document corrects typographic errors and cross-references in that proposal.

Progress report of the task force working to develop technical specifications for LNG (Liquefied Natural Gas) cryogenic components to be installed on-board road vehicles.

Bosch presentation on the type approval of engine control units (ECU); CNG tank valve operation in start-stop systems; and mixed operation gasoline / CNG systems.

Presentation of the Task Force on Heavy-duty Dual Fuel vehicles to the Informal Group on Gaseous Fueled Vehicles

AEGPL comments on the proposed amendments to UN R67 and UN R110 with regard to the gas ECU type-approval and start & stop systems.

Documents GRPE-63-05/Rev.1 and GRPE/2012/6/Rev.1 propose to redefine the class of bi-fuel vehicles to permit the simultaneous use of gas and petrol in gas mode in UN Regulation No. 83. CLEPA proposes an alternative method to the weighing procedure of the fuel consumption test procedure.

Report of the 22nd informal group on gaseous-fueled vehicles meeting.

US EPA presentation at the Clean Cities Summit held in Indianapolis on June 28, 2011, transmitted to GFV courtesy of Jeff Seisler representing NGV Global and Clean Fuels Consulting.