Regulation No 85 of the Economic Commission for Europe of the United Nations ... (42014X1107(01))
Regulation No 85 of the Economic Commission for Europe of the United Nations ... (42014X1107(01))
Regulation No 85 of the Economic Commission for Europe of the United Nations (UN/ECE) — Uniform provisions concerning the approval of internal combustion engines or electric drive trains intended for the propulsion of motor vehicles of categories M and N with regard to the measurement of net power and the maximum 30 minutes power of electric drive trains
1. SCOPE
2. DEFINITIONS
3. APPLICATION FOR APPROVAL
4. APPROVAL
5. SPECIFICATIONS AND TESTS
5.1. General
5.2. Description of tests for internal combustion engines
5.3. Description of tests for measuring the net power and the maximum 30 minutes power of electric drive trains
5.3.1. Determination of the net power
5.3.2. Determination of the maximum 30 minutes power
5.4. Interpretation of results
6. CONFORMITY OF PRODUCTION
7. PENALTIES FOR NON-CONFORMITY OF PRODUCTION
8. MODIFICATION AND EXTENSION OF APPROVAL OF DRIVE TRAIN TYPE
9. PRODUCTION DEFINITIVELY DISCONTINUED
10. NAMES AND ADDRESSES OF TECHNICAL SERVICES RESPONSIBLE FOR CONDUCTING APPROVAL TESTS, AND OF TYPE APPROVAL AUTHORITIES
ANNEX 1
ESSENTIAL CHARACTERISTICS OF THE INTERNAL COMBUSTION ENGINE AND INFORMATION CONCERNING THE CONDUCT OF TESTS
ANNEX 2
ESSENTIAL CHARACTERISTICS OF THE ELECTRIC DRIVE TRAIN AND INFORMATION CONCERNING THE CONDUCT OF TESTS
ANNEX 3A
COMMUNICATION
(maximum format: A4 (210 × 297 mm))
ANNEX 3B
COMMUNICATION
(maximum format: A4 (210 × 297 mm))
ANNEX 4
ARRANGEMENTS OF APPROVAL MARKS
Model A
(see paragraph 4.4 of this Regulation)
Model B
(see paragraph 4.5 of this Regulation)
ANNEX 5
METHOD FOR MEASURING INTERNAL COMBUSTION ENGINE NET POWER
2. TEST CONDITIONS
2.3. Auxiliaries
2.3.1. Auxiliaries to be fitted
2.3.2. Auxiliaries to be removed
|
No |
Auxiliaries |
Fitted for net power test |
|
1 |
Intake system |
|
|
Intake manifold Crankcase emission control system |
Yes, standard production equipment |
|
|
Air filter Intake silencer Speed limiting device |
Yes, standard production equipment(1) |
|
|
2 |
Induction heating device of intake manifold |
Yes, standard production equipment. If possible, to be set in the most favourable position. |
|
3 |
Exhaust system |
|
|
Exhaust purifier Exhaust manifold Supercharging device Connecting pipes(2) Silencer(2) Tail pipe(2) Exhaust brake(1) |
Yes, standard production equipment |
|
|
4 |
Fuel supply pump(2) |
Yes, standard production equipment |
|
5 |
Carburettor |
|
|
Electronic control system, air flow meter, etc. (if fitted) |
Yes, standard production equipment |
|
|
Pressure reducer Evaporator Mixer |
Equipment for gas engines |
|
|
6 |
Fuel injection equipment (petrol and diesel) |
|
|
Prefilter Filter Pump High pressure pipe Injector Air intake valve(3), if fitted Electronic control system, air flow meter, etc., if fitted Governor/control system. Automatic full-load stop for the control rack depending on atmospheric conditions |
Yes, standard production equipment |
|
|
7 |
Liquid cooling equipment |
|
|
Engine bonnet Bonnet air outlet |
No |
|
|
Radiator Fan(4) (5) Fan cowl Water pump Thermostat(6) |
Yes(4), standard production equipment |
|
|
8 |
Air cooling |
|
|
Cowl Blower(4) (5) |
Yes, standard production equipment |
|
|
Temperature regulating device |
Yes, standard production equipment |
|
|
9 |
Electrical equipment |
Yes(7), standard production equipment |
|
10 |
Supercharging equipment (if fitted) |
|
|
Compressor driven either directly by the engine, and/or by the exhaust gases Charge air cooler(8) Coolant pump or fan (engine driven) Coolant flow control devices (if fitted) |
Yes, standard production equipment |
|
|
11 |
Auxiliary test bench fan |
Yes, if necessary |
|
12 |
Anti-pollution devices(9) |
Yes, standard production equipment |
2.3.3. Compression-ignition engine starting auxiliaries
2.4. Setting conditions
|
In accordance with the manufacturer’s production specifications and used without further alteration for the particular application |
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3. DATA TO BE RECORDED
4. ACCURACY OF MEASUREMENTS
5. POWER CORRECTION FACTORS
5.1. Definition
5.2. Reference atmospheric conditions
5.2.1. Temperature (T
o
): 298 K (25 °C)
5.2.2. Dry pressure (P
so
): 99 kPa
5.3. Test atmospheric conditions
5.3.1. Temperature (T)
|
For positive-ignition engines |
288 K ≤ T ≤ 308 K |
|
For diesel engines |
283 K ≤ T ≤ 313 K |
5.3.2. Pressure (P
s
)
5.4. Determination of correction factor α
a
and α
d
(10)
5.4.1. Naturally aspirated or pressure-charged positive-ignition engine factor α
a
5.4.2. Diesel engines — Factor α
d
5.4.2.1. Atmospheric factor f
a
5.4.2.1.1. Naturally aspirated and mechanically supercharged engines
5.4.2.1.2. Turbocharged engines with or without cooling of inlet air
5.4.2.2. Engine factor f
m
5.4.2.3. Conditions to be complied with in the laboratory
Appendix
Results of tests for measuring net engine power
1. Test conditions
2. Fuel
|
|
Engine speed (min–1) |
Nominal flow G (litres/second) |
Limit absorption values (m–1) |
Measured absorption values (m–1) |
|
1 |
|
|
|
|
|
2 |
|
|
|
|
|
3 |
|
|
|
|
|
4 |
|
|
|
|
|
5 |
|
|
|
|
|
6 |
|
|
|
|
3. Lubricant
4. Detailed results of Measurements(2)
|
Engine speed, min–1 |
|
|
|
Measured torque, Nm |
|
|
|
Measured power, kW |
|
|
|
Measured fuel flow, g/h |
|
|
|
Barometric pressure, kPa |
|
|
|
Water vapour pressure, kPa |
|
|
|
Inlet air temperature, K |
|
|
|
Power to be added for No 1 auxiliaries in excess No 2 of table above, kW No 3 |
|
|
|
Power correction factor |
|
|
|
Corrected brake power, kW (with/without(3) fan) |
|
|
|
Power of fan, kW (to be subtracted if fan not fitted) |
|
|
|
Net power, kW |
|
|
|
Net torque, Nm |
|
|
|
Corrected specific fuel consumption g/(kWh)(4) |
|
|
|
Cooling liquid temperature at outlet, K |
|
|
|
Lubricating oil temperature t measuring point, K |
|
|
|
Air temperature after pressure-charger, K(5) |
|
|
|
Fuel temperature at injection pump inlet, K |
|
|
|
Air temperature after charge air cooler, K(5) |
|
|
|
Pressure after pressure-charger, kPa(5) |
|
|
|
Pressure after charge air cooler, kPa |
|
|
ANNEX 6
METHOD FOR MEASURING NET POWER AND THE MAXIMUM 30 MINUTES POWER OF ELECTRIC DRIVE TRAINS
2. TEST CONDITIONS
2.3. Auxiliaries
2.3.1. Auxiliaries to be fitted
2.3.2. Auxiliaries to be removed
|
No |
Auxiliaries |
Fitted for net power and the maximum 30 minutes power test |
|
1 |
DC voltage source |
Voltage drop during test less than 5 % |
|
2 |
Speed variator and control device |
Yes: Standard-production equipment |
|
3 |
Liquid-cooling |
|
|
Motor bonnet Bonnet outlet |
No |
|
|
Radiator(1) (2) Fan Fan cowl Pump Thermostat(3) |
Yes: Standard production equipment |
|
|
Air cooling |
|
|
|
Air filter Cowl Blower Temperature adjustment system |
Yes: Standard production equipment |
|
|
4 |
Electric equipment |
Yes: Standard production equipment |
|
5 |
Bench test auxiliary fan |
Yes, if necessary |
2.4. Setting conditions
2.5. Data to be recorded
3. ACCURACY OF MEASUREMENTS
ANNEX 7
CHECKS ON CONFORMITY OF PRODUCTION
1. GENERAL
2. TEST PROCEDURES
3. COLLECTION OF SAMPLES
4. MEASUREMENT CRITERIA
4.1. Net power of internal combustion engine
4.2. Net power and maximum 30 minutes power of electric drive trains
5. EVALUATION OF RESULTS
ANNEX 8
REFERENCE FUELS
|
|
Fuel A |
Fuel B |
Test method |
|
|
Composition: |
|
|
ISO 7941 |
|
|
C3 |
% vol. |
30 ± 2 |
85 ± 2 |
|
|
C4 |
% vol. |
balance |
balance |
|
|
< C3, > C4 |
% vol. |
max. 2 % |
max. 2 % |
|
|
Olefines |
% vol. |
9 ± 3 |
12 ± 3 |
|
|
Evaporative residue |
ppm |
max. 50 |
max. 50 |
NFM 41-015 |
|
Water content |
|
none |
none |
visual inspection |
|
Sulphur content |
ppm mass (*) |
max. 50 |
max. 50 |
EN 24260 |
|
Hydrogen sulphide |
|
none |
none |
|
|
Copper corrosion |
rating |
class 1 |
class 1 |
ISO 625 1 (**) |
|
Odour |
|
Characteristic |
Characteristic |
|
|
MON |
|
min. 89 |
min. 89 |
EN 589 Annex B |
|
|
G20 |
G23 |
G25 |
|
|
Composition: |
|
|
|
|
|
CH4 |
% vol. |
100 |
92,5 |
86 |
|
N2 |
% vol. |
0 |
7,5 |
14 |
|
Wobbe Index (***) |
MJ/m3 |
53,6 ± 2 % |
48,2 + 2 % |
43,9 ± 2 % |