SIAM-JAMA Meeting
JAPAN NEW EMISSION REGULATION
（Draft）
OCT. 31.2014
ＪＡＭＡ
1
Type I – Tailpipe emissions
・THC in Class 1 and 2 is more stringent than that of Euro4.
・Class 3 is the same as the new Euro4 (considered harmonization)
Japan
Current limits
(WMTC mode)
≦125cc
CO
THC NOx
2.2 0.45 0.16
Japan 2016
limits
(WMTC mode)
Class 1
CO
THC NOx
1.14 0.30 0.07
Class 2
CO
THC NOx
1.14 0.20 0.07
Class 3
CO
THC NOx
1.14 0.17 0.09
(-48%)
(-56%)
(-56%)
<Reference>
Euro3
Euro4
(-33%)
(-56%)
125cc＜
THC
0.27
CO
2.62
(-26%)
(-66%)
NOx
0.21
(-37%)
(-57%)
Class 1, Class 2 (Vmax <130Km/h)
CO
THC
NOx
2.62
0.75
0.17
1.14
0.38
0.07
Class 3
CO
THC NOx
2.62 0.33 0.22
1.14 0.17 0.09
(-56%)
(-56%)
(-50%)
(-58%)
(-50%)
(-57%)
Policy: Harmonize with the international standards to be developed in new
EURO5 UN-ECE/WP29 in Europe 2020.
2
Type II – emissions test (Idle/high Idle)
Limit Value
IDLE
CO
Japan
EURO4
3.0%
the values measured in accordance with point 4.2.3. shall be
in compliance with the requirements set out in points 8.2.1.2.
of Annex II to Directive 2009/40/EC
if point 8.2.1.2. (a) is selected by the manufacturer, the
specific CO level given by the manufacturer shall be entered
on the certificate of conformity;
・・・・・
HC
High
IDLE
CO
≦125cc
1600ppm
>125cc
1000ppm
↑
HC
3
Type II – emissions test (Idle/high Idle)
Annex II to Directive 2009/40/EC
Type III – Crankcase emissions
Requirements
Japan 0g Design requirements
BLOWBY GAS REDUCING DEVICE
Euro4
Base Test
Option1
Option2
Test Method
pressurize the crankcase to 5
kPa and monitor for 300
seconds
Test Condition
Requirements
Pressure does not exceed
atmospheric pressure.
Bag does not inflate during the
3 steady state tests.
Crankcase pressure ≥ 0.95
times the initial overpressure
for 300 seconds
5
Type IV – Evaporative emissions
Limit value
THC g/test
Japan 2016
2.0
Euro4
2.0
Shield Housing for Evaporative Determinations
HC Analyzer
6
Type IV – Evaporative emissions
Precondition
（Driving cycle*）
Evap. test flow
*Driving cycle
WMTC mode
（Vmax ≦50km/h EUDC）
Soak
（20～30℃、Max 36Hr）
Fuel replacement
①
Canister Aging
Diurnal Breathing Loss(1hour)
Exposed
Non-Exposed
Fuel：15.5 - 35.5℃
15.5 - 28.8℃
Vapor：21 - 41℃
21 - 34.3℃
Fuel Cooling Max 30℃
Driving cycle*
②
Hot Soak Loss
(20～30℃,1hour)
Limit ：①＋②＋（Fixed DF） ≦ ２．０g
Type IV – Evaporative emissions
Requirements list of evaporative emission test
Euro4
CARB
Japan 2016
Test
Vehicle
Degreened Vehicle ①
>1000km
Aged Vehicle①
or Dgreened Vehicle②
Degreened Vehicle①
>1000km
Canister
Aging
Loading & Paging ③
(EURO4)
Loading & Paging ③
(CARB)
Loading & Paging ③
（EURO4 or CARB）
Control
Device
Durability test 5000 ④
cycle or
The parts which
finished the Type V test.
Aged device ④
The parts which
finished the Type V test.
④
Fixed DF
0.3g/Test ⑤
None
Under discussion ⑤
Average
① and
②＋③＋④
①＋③＋④
(or ①＋⑤)
Under Discussion
Test
①＋③＋④
Calculation or ①＋⑤
method
・Mechanical Endurance
・Vibration Endurance
・Thermal Exposure
8
Type IV – Evaporative emissions
CARB
Euro4
①Canister Loading
①Canister Loading
・Air : Gasoline vapor 50:50
・Flow rate : 40gr/h
・Heating a container filled
with gasoline at 80℃。
2g- Breakthrough or 5000ppm by FID
Up to 80% by weight of capacity
Dwell time : 5min
Dwell time : 10min
②Canister Purging
②Canister Purging
・Flow rate :1±0.2cfm
・Time : 7.5min
・Flow rate : 24L/min
・400 bed volume
V max
Test cycles
≦50km/h
90
50km/h<Vmax＜130km/h
170
≧130km/h
300
Each of the Ageing method will be allowed in the Japan regulation.
Type IV – Evaporative emissions
Fuel Tank heating profile for DBL test
For exposed type fuel tanks:
Tf = 0.3333 .t + 288.5
Tv = 0.3333 .t + 294.0
For non-exposed type fuel tanks:
Tf = 0.2222 .t +288.5
Tv = 0.2222 .t + 294.0
where:
Tf = required temperature of fuel (K);
Tv = required temperature of vapor (K);
t = time from start of the tank heat build in minutes.
Definition
The "non-exposed fuel tank", all parts of the fuel tank, including the fuel tank
cap, fuel tank placement and structure that is not subject to direct sunlight,
Or, it is proved that the handle manufacturing is equivalent to "non-exposed fuel
tank" means a fuel tank Examining Authority recognized.
Japan will apply the same heating profile as EURO4 and considers to
add the definition of “Non-exposed type fuel tanks”.
Type V - Durability requirements
Mileage requirement:
Disp.
≦50cc
≦125cc
＞125cc
Japan Current
6,000km
8,000km
24,000km
Japan 2016
6,000km
8,000km
24,000km
・Full Distance
・Test Mode Japanese Mode
Vmax ＜130 km/h
Vmax ≧130 km/h
EURO4
20,000km
35,000km
EURO5
20,000km
35,000km
・Half/Full Distance、Fixed DF
・Test Mode SRC or AMA
Plan to achieve full harmonization with the European legislation next
regulations (2020 Implementation)
11
Type VIII – J-OBD1
Monitoring requirements
 Basically, OBD in the Japan 2016 regulation is to monitor the
malfunctions of the following components caused by an open/short
circuit.
- Barometric pressure sensor
- Manifold absolute pressure sensor
- Intake air temperature sensor
- Engine coolant temperature sensor / Engine temperature sensor
- Throttle position sensor
- Camshaft position sensor
- Crankshaft position sensor
- O2 sensor
- O2 sensor heater
- Ignition coil primary control circuits
- Secondary air injection system
 Fuel system
12
Type VIII – J-OBD1
Functional requirements
 Malfunction information to be stored in the on-board ECU
 Malfunction indicator light to be in conformity with ISO 2575
 Data link connector between the vehicle and the diagnostic tester to
be in conformity with ISO 15031-3 (SAE J1962)
An alternative connection interface may be used when the vehicle
manufacture prepares an adapter which enables connection to the
diagnostic tester conforming with ISO 15031-3 (SAE J1962)
Adaptor
ECU
Specific connector
by each manufacture
- Small size
- Waterproof
ISO 15031-3
(SAE J1962)
-Big size
-Non waterproof
13
OBD Connector
Time Line of ISO TC22/SC38/WG4
OBD Connectorは Autumn/2016にInternational Standard 予定
P-14
Plan to achieve full harmonization with the European legislation next
regulations (2020 Implementation)
４次規制（２０２０年頃実施）は欧州法規との完全基準調和を図る予定
item
Japan 2016
Euro4
mg/km
g/km
Tailpipe
Durability
Japan Next
(=EURO5?)
1,2
3
<130km/h
≧130km/h
CO
1140
1140
0.17
THC
380
170
0.09
NOx
70
90
Class
1
2
3
Class
CO
1.14
1.14
1.14
THC
0.3
0.2
NOx
0.07
0.07
Class
ALL
CO
1000
THC
100
NMHC
68
NOx
60
Test mode : Japan mode
6,000/8,000/24,000km
Test mode：AMA or SRC
・Full/Half distance
(20,000km/35,000km)
・Fixed DF(1.3/1.2/1.2)
EVAP
2g/Test
Aging EURO4 or CARB
Fixed DF (under discussion)
2000mg/Test
Aging EURO4
Fixed DF 0.3g
OBD
J-OBD1
Open, short Circuit
Fuel System
OBD stage1
・Open Short Circuit
・Emission thresholds、Rationality
check, …）
OBD stage2
・Emission threshold
・Misfire, CAT diagnosis
Noise
UN-R41
Stationary noise
UN-R41
UN-R41
mg/km
Test mode： SRC ?
・Full/Half distance
(20,000km/35,000km)
・Fixed DF(1.3/1.2/1.2)
Under
Discussion
1500mg/Test
15
Schedule for implementation
2013cy
2014
71st
2015
GRPE
(informal doc)
EPPR
Draft
Roadmap
(Test type VIII)
Jun
Jan
Jun
72nd GRPE
(formal doc)
applicable
Japan’s
Regulation
2016
enforcement
regulation study
announcement
16
END
Thank you for your attention
.
17