6. Referring to the discussion of the previous session, GRPE agreed with the request by the expert from India to add the following sentences to paragraph 12 of the GRPE report ECE/TRANS/WP.29/GRPE/59:

“India recommended that in addition to the “hardware in the loop (HILS)”, there should be an option for carrying out the test on a chassis dynamometer used for type approval purposes. The expert from the Netherlands expressed a similar view.”

7. The Chairman of the informal group on Heavy Duty Hybrids (HDH) reported on the work progress made by the group at its first and second meetings. He introduced a proposal for the terms of reference and rules of procedures for the HDH group (GRPE-60-11). GRPE adopted the term of references and rules of procedures as reproduced in Annex III to this report. Detailed information is available on the GRPE website at: http://www.unece.org/trans/main/wp29/wp29wgs/wp29grpe/hd-hybrids02.html.

8. The expert from EC presented GRPE-60-12 regarding the objectives and the time line to set up an emission test procedures for heavy duty hybrid vehicles which finally would be established as an amendment to gtr No. 4 (WHDC). GRPE agreed with the proposal to develop an amendment to gtr No. 4 and requested the secretariat to distribute GRPE-60-12 with an official symbol for consideration by WP.29 and AC.3 at their November 2010 sessions. The expert from Japan underlined the importance of this subject and announced the preparedness of his government to co-sponsor this activity together with the European Union.

9. GRPE noted the intention of the HDH group to possibly meet again in October 2010. The GRPE Chair recommended that the informal group on HDH should also meet prior to the next session of GRPE (see para. 57 below). He volunteered to inform WP.29 and AC.3, at their June 2010 sessions, about the progress made by the HDH group.

Annex III

GRPE informal group on Heavy Duty Hybrids

A. Terms of reference

1. The objective of the informal group on Heavy Duty Hybrids (HDH) is to establish an amendment to global technical regulation (gtr) No. 4 (WHDC) with respect to pollutant emissions and CO2 emission from heavy duty hybrids under the 1998 Global Agreement. The informal group will also consider if the scope of gtr No. 4 is appropriate or if a separate gtr should be considered. The group shall report to GRPE on its conclusions on this matter at the sixty-first session of GRPE in January 2011.

2. The informal group shall investigate the Hardware-in-the-Loop Simulation (HILS) approach, which starts from a vehicle cycle and simulates powertrain and vehicle components to result in a hybrid specific engine cycle for pollutant emissions and CO2 testing and measurement, and which is based on the test cell environment, data evaluation procedures and emissions calculations specified in gtr No. 4. The engine cycle (speed/load pattern) created by HILS will be verified against the engine cycle resulting from a chassis dynamometer test.

3. As a starting point, the vehicle speed pattern of the World Harmonized Vehicle Cycle (WHVC) will be used.

4. Modifications to the WHVC with respect to using subsets of the cycle in combination with appropriate weighting or scaling factors will be investigated for specific hybrid vehicle designs (e.g. city buses).

5. The final procedure shall result in outputs that are quantifiable, verifiable, and reproducible and that provide a method for assessing real world compliance broadly and on a case by case basis, shall be capable of incorporating updated information and new data to produce the most accurate outputs, and shall be appropriately transparent as to allow governmental entities the latitude to easily assess its performance and ensure accuracy and a level playing field.

6. During the course of this work the feasibility of a chassis dynamometer based emission test procedure will be assessed as an alternative to HILS. The result of this activity will be reported to GRPE.

7. The informal group shall submit to GRPE for consideration, at its sixty-first session in January 2011 the milestones, the roadmap and the necessary budget for step 1 of the future work program.

8. The informal group shall submit the final report on the investigation on HILS for consideration to GRPE at its sixty-fifth session in January 2013.

9. The target completion date for the work of the informal group on HILS shall be the 163rd session of WP.29 in June 2014.

10. This target completion date and the necessity of a chassis dynamometer test as a second step will be reviewed by WP.29 at its 160th session in June 2013, taking into account the assessment by GRPE of the final report on HILS.

B. Rules of procedure

1. The informal group is open to all participants of GRPE. A limitation of the number of participants from any country and organization to participate in the informal group is actually not foreseen. A Chairperson and a Secretary will manage the informal group.

2. The working language of the informal group will be English.

3. All documents and/or proposals shall be submitted to the Secretary of the group in a suitable electronic format, preferably in line with the UNECE guidelines in advance of the meetings. The group may refuse to discuss any item or proposal which has not been circulated at least 5 working days in advance of the scheduled meeting.

4. An agenda and related documents will be circulated to all members of the informal group in advance of all scheduled meetings.

5. The work process will be developed by consensus. When consensus cannot be reached, the Chairperson of the informal group shall present the different points of view to GRPE. The Chairperson may seek guidance from GRPE, as appropriate.

6. The progress of the informal group will be routinely reported to GRPE orally or as an informal document by the Chairperson or the Secretary.

7. All working documents shall be distributed in digital format. A specific website of the GRPE informal group on HDH will be created and the URL will be noticed to all related parties.

6. Referring to the discussion of the previous session, GRPE agreed with the request by the expert from India to add the following sentences to paragraph 12 of the GRPE report ECE/TRANS/WP.29/GRPE/59:

“India recommended that in addition to the “hardware in the loop (HILS)”, there should be an option for carrying out the test on a chassis dynamometer used for type approval purposes. The expert from the Netherlands expressed a similar view.”

7. The Chairman of the informal group on Heavy Duty Hybrids (HDH) reported on the work progress made by the group at its first and second meetings. He introduced a proposal for the terms of reference and rules of procedures for the HDH group (GRPE-60-11). GRPE adopted the term of references and rules of procedures as reproduced in Annex III to this report. Detailed information is available on the GRPE website at: http://www.unece.org/trans/main/wp29/wp29wgs/wp29grpe/hd-hybrids02.html.

8. The expert from EC presented GRPE-60-12 regarding the objectives and the time line to set up an emission test procedures for heavy duty hybrid vehicles which finally would be established as an amendment to gtr No. 4 (WHDC). GRPE agreed with the proposal to develop an amendment to gtr No. 4 and requested the secretariat to distribute GRPE-60-12 with an official symbol for consideration by WP.29 and AC.3 at their November 2010 sessions. The expert from Japan underlined the importance of this subject and announced the preparedness of his government to co-sponsor this activity together with the European Union.

9. GRPE noted the intention of the HDH group to possibly meet again in October 2010. The GRPE Chair recommended that the informal group on HDH should also meet prior to the next session of GRPE (see para. 57 below). He volunteered to inform WP.29 and AC.3, at their June 2010 sessions, about the progress made by the HDH group.

Annex III

GRPE informal group on Heavy Duty Hybrids

A. Terms of reference

1. The objective of the informal group on Heavy Duty Hybrids (HDH) is to establish an amendment to global technical regulation (gtr) No. 4 (WHDC) with respect to pollutant emissions and CO2 emission from heavy duty hybrids under the 1998 Global Agreement. The informal group will also consider if the scope of gtr No. 4 is appropriate or if a separate gtr should be considered. The group shall report to GRPE on its conclusions on this matter at the sixty-first session of GRPE in January 2011.

2. The informal group shall investigate the Hardware-in-the-Loop Simulation (HILS) approach, which starts from a vehicle cycle and simulates powertrain and vehicle components to result in a hybrid specific engine cycle for pollutant emissions and CO2 testing and measurement, and which is based on the test cell environment, data evaluation procedures and emissions calculations specified in gtr No. 4. The engine cycle (speed/load pattern) created by HILS will be verified against the engine cycle resulting from a chassis dynamometer test.

3. As a starting point, the vehicle speed pattern of the World Harmonized Vehicle Cycle (WHVC) will be used.

4. Modifications to the WHVC with respect to using subsets of the cycle in combination with appropriate weighting or scaling factors will be investigated for specific hybrid vehicle designs (e.g. city buses).

5. The final procedure shall result in outputs that are quantifiable, verifiable, and reproducible and that provide a method for assessing real world compliance broadly and on a case by case basis, shall be capable of incorporating updated information and new data to produce the most accurate outputs, and shall be appropriately transparent as to allow governmental entities the latitude to easily assess its performance and ensure accuracy and a level playing field.

6. During the course of this work the feasibility of a chassis dynamometer based emission test procedure will be assessed as an alternative to HILS. The result of this activity will be reported to GRPE.

7. The informal group shall submit to GRPE for consideration, at its sixty-first session in January 2011 the milestones, the roadmap and the necessary budget for step 1 of the future work program.

8. The informal group shall submit the final report on the investigation on HILS for consideration to GRPE at its sixty-fifth session in January 2013.

9. The target completion date for the work of the informal group on HILS shall be the 163rd session of WP.29 in June 2014.

10. This target completion date and the necessity of a chassis dynamometer test as a second step will be reviewed by WP.29 at its 160th session in June 2013, taking into account the assessment by GRPE of the final report on HILS.

B. Rules of procedure

1. The informal group is open to all participants of GRPE. A limitation of the number of participants from any country and organization to participate in the informal group is actually not foreseen. A Chairperson and a Secretary will manage the informal group.

2. The working language of the informal group will be English.

3. All documents and/or proposals shall be submitted to the Secretary of the group in a suitable electronic format, preferably in line with the UNECE guidelines in advance of the meetings. The group may refuse to discuss any item or proposal which has not been circulated at least 5 working days in advance of the scheduled meeting.

4. An agenda and related documents will be circulated to all members of the informal group in advance of all scheduled meetings.

5. The work process will be developed by consensus. When consensus cannot be reached, the Chairperson of the informal group shall present the different points of view to GRPE. The Chairperson may seek guidance from GRPE, as appropriate.

6. The progress of the informal group will be routinely reported to GRPE orally or as an informal document by the Chairperson or the Secretary.

7. All working documents shall be distributed in digital format. A specific website of the GRPE informal group on HDH will be created and the URL will be noticed to all related parties.