1. Tianjin Motorcycle Technical Center
TMTC’s proposal for GTR2 Part-B3 6 (EPPR GTR2 Part-B1-B2-B3 consolidated text )
Tianjin Motorcycle Technical Center

2. GTR2 Part-B3 6
‘EPPR GTR2 Part-B1-B2-B3 consolidated text ’ GTR2，Part-B3: 6.Fail criteria test type II for vehicles equipped with a PI combustion engine 6.1 At the choice of CP, the following alternative criteria shall be used to determine whether the vehicle has failed the type II test: CO normal idle emissions > 0.5% gaseous emissions exceed the specific levels given by the vehicle manufacturer; if the information from the vehicle manufacturer is not made available and for vehicles without closed-loop fuel delivery control; CO emissions > 3.5%; if the information from the vehicle manufacturer is not available and for vehicles equipped with a closed-loop fuel delivery control system; COnormal idle emissions > 0.5%; or COhigh idle emissions > 0.3% ……
Current

3. GTR2 Part-B3 6 TMTC’s proposals
GTR2，part B3, is replaced by the following:
6.Fail criteria test type II for vehicles equipped with a PI combustion engine
6.1 At the choice of CP, the following alternative criteria shall be used to determine whether the vehicle has failed the type II test:
6.1.1 CO normal idle emissions > 0.5% or HC normal idle emissions > 150ppm;
6.1.2 gaseous emissions exceed the specific levels given by the vehicle manufacturer;
if the information from the vehicle manufacturer is not made available and for vehicles without closed-loop fuel delivery control; CO emissions > 3.5% or HC emissions > 800ppm;
if the information from the vehicle manufacturer is not available and for vehicles equipped with a closed-loop fuel delivery control system;
COnormal idle emissions > 0.5% or HCnormal idle emissions > 150ppm; or
COhigh idle emissions > 0.3% or HChigh idleemissions > 150ppm. ……

4. GTR2 Part-B3 6 Justification:
1. China’s national standards have set emission limits for CO and HC since 1993.
2. For the Test Type II, HC limit was set to 800 ppm corresponding the CO limit 3.8 % in China’s national standards in 2003.
3. Base on many test results, in the drafting emission standard of China Ⅴ, the limits of CO and HC will be set : ‘high idle’: CO 0.3 %, HC 150 ppm; ‘normal idle’: CO 0.5 %, HC 150 ppm.
China　standard： The limit of high idle and normal idle
EU stage
EU1
EU2
EU3
EU4
EU5
CHINA
DATE
high idle
normal idle
CO(%)
HC(ppm) GB /
4.5
1500 GB
3.8
800 GB
2.0
250 GB
0.8
150
GB X
202X-XX-XX
0.3
0.5 ≈ 4

5. The test result about 765 motorcycles from 2015
GTR2 Part-B3 6
The test result about 765 motorcycles from 2015