Presentation providing a summary of 15th HDH meeting, status of HDH validation test programs, topics for 16th HDH meeting, status of the amendment drafting group, revised project roadmap & planning, and plans for next meetings.

EC presentation reviewing the interest in and concern over the prospects for integrating the HDH procedures into the Euro VI legislation.

Review of the goals and status of the heavy-duty hybrid HILS test model validation program.

Memorandum from the US Environmental Protection Agency on the proposed addition of test procedures for heavy-duty hybrid vehicles to the global technical regulation on heavy-duty vehicle emissions and fuel consumption (WHDC) identifying “a number of open issues that are causing concern for the United States and require resolution prior to considering the Annex for adoption”.

Presentation on the status of the work, including a new HILS-GTR v0.5 simulation model release, Validation Test Program 2 (VTP2) model verification and drive cycle development, the definition of rated power of hybrid system, and review of major open issues.

Working draft of the annex to specify the hybrid heavy-duty vehicle engine emissions and fuel efficiency measurement procedure using the hardware-in-the-loop method.

Proposal to extend the mandate of the informal working group on heavy-duty hybrids to allow for the adaptation of the hybrid provisions developed for GTR No. 4 (WHDC heavy-duty emissions test cycle) to GTR No. 11 (Non-road vehicle emissions).

Text prepared by the GRPE working group on HDH to add the test procedure on heavy duty hybrids. The text has been prepared as a consolidated version of the GTR.

Working draft of Annex 9 (Test procedure using the HILS method) and Annex 10 (test procedure using the powertrains method) of the amendment to GTR No. 4 (heavy-duty vehicle emissions and fuel consumption) to introduce provisions for heavy-duty hybrid vehicles, prepared by the drafting subgroup of the HDH informal working group.

Review of Korean results using the heavy-duty hybrid vehicle mode on a chassis dynamometer per the proposed amendment to enable hybrid vehicle testing under GTR No.4

Discussion presentation from Japan towards harmonizing the provisions for testing hybrid vehicles in the kokujikan and the proposed GTR to avoid divergent interpretations.

The HILS method currently used in Japan does use a cold-start test in hybrid testing; however, GTR No. 4 will use a cold-start test. This presentation discusses Japan’s proposal for a “predicted temperature method” that inputs the temperature profile of each component in advance.

Status report on research and validation programs concerning:

• HILS Model Library
• WHVC Test Cycle
• System Work Concept
• Rated Power Determination for a Hybrid Vehicle
• Family Concept-Validity of Certification
• Validation Test Phase 2 (VTP2) Validation Results−Sub-presentations of VOLVO, MAN and IVECO
• VTP2 conclusions & discussion of further actions

Decision tree for determining the powertrain family of a given vehicle under the proposed heavy-duty hybrids emissions and fuel consumption test procedures.

Document GRPE/2014/11 was prepared by the GRPE informal working group on heavy duty hybrids (HDH) to add the test procedure on heavy-duty hybrids to GTR No. 4.

This informal document revises and supplements GRPE/2014/11 in order to align GTR No. 4 and GTR No. 11 (NRMM) in accordance with the latest work of the HDH group. The renumbering of equations, tables and figures, the corresponding references, and the symbols list in paragraph 3.2 has not been completed in this document. This will be done during the final editing of GRPE/2014/11.

Draft report on the development of the amendment to introduce provisions for heavy-duty hybrid powertrains and vehicles into GTR No. 4 on heavy-duty vehicle emissions and fuel consumption.

Presentation on the Climate and Clean Air Coalition (CCAC), a government-sponsored global effort to reduce short-lived “climate pollutants” (initially focused on methane, black carbon, and hydrofluorocarbons).

Memorandum from the US EPA providing an overview of obstacles to US adoption of the proposed heavy-duty hybrids amendment and possible remedies to overcome these concerns. This memo addresses remaining concerns beyond those presented earlier in document HDH-16-03.

Overview of the status of work on the heavy-duty hybrids amendments to GTR No. 4 for the 18th HDH informal group session.

Adopted technical report on the development of the draft Amendment 3 to Global Technical Regulation (GTR) No. 4.

Draft Amendment 3 to Global Technical Regulation (GTR) No. 4 concerning heavy-duty hybrids as approved by the Working Party on Pollution and Energy.