Appendix 8b Road Load Test ReportF1
The following information, if applicable, is the minimum data required for the road load determination test.
Report number
| APPLICANT | |||
| Manufacturer | |||
| SUBJECT | Determination of a vehicle road load /… | ||
| Roadload family identifier(s) | : | ||
| Object submitted to tests | |||
| Make | : | ||
| Type | : | ||
| CONCLUSION | The object submitted to tests complies with the requirements mentioned in the subject. | ||
| PLACE, | DD/MM/YYYY |
1.
CONCERNED VEHICLE(S)
| Make(s) concerned | : | |
| Type(s) concerned | : | |
| Commercial description | : | |
| Maximal speed (km/h) | : | |
| Powered axle(s) | : |
2.
DESCRIPTION OF TESTED VEHICLES
If no interpolation: the worst-case vehicle (regarding energy demand) shall be described
2.1.
Wind tunnel method
| Combination with | : | Flat belt dynamometer / chassis dynamometer |
2.1.1
General
| Wind tunnel | Dynamometer | |||
|---|---|---|---|---|
| H R | L R | H R | L R | |
| Make | ||||
| Type | ||||
| Version | ||||
| Cycle energy demand over a complete WLTC Class 3 cycle (kJ) | ||||
| Deviation from production series | — | — | ||
| Mileage (km) | — | — | ||
Or (in case of roadload matrix family):
| Make | : | |
| Type | : | |
| Version | : | |
| Cycle energy demand over a complete WLTC (kJ) | : | |
| Deviation from production series | : | |
| Mileage (km) | : |
2.1.2
Masses
| Dynamometer | ||
|---|---|---|
| H R | L R | |
| Test mass (kg) | ||
| Average mass m av (kg) | ||
| Value of m r (kg per axle) | ||
| Category M vehicle: proportion of the vehicle mass in running order on the front axle (%) | ||
| Category N vehicle: weight distribution (kg or %) | ||
Or (in case of roadload matrix family):
| Test mass (kg) | : | |
| Average mass mav(kg) | : | (average before and after the test) |
| Technically permissible maximum laden mass | : | |
| Estimated arithmetic average of the mass of optional equipment | : | |
Category M vehicle: proportion of the vehicle mass in running order on the front axle (%) | : | |
Category N vehicle: weight distribution (kg or %) | : |
2.1.3
Tyres
| Wind tunnel | Dynamometer | |||
|---|---|---|---|---|
| H R | L R | H R | L R | |
| Size designation | ||||
| Make | ||||
| Type | ||||
| Rolling resistance | ||||
| Front (kg/t) | — | — | ||
| Rear (kg/t) | — | — | ||
| Tyre pressure | ||||
| Front (kPa) | — | — | ||
| Rear (kPa) | — | — | ||
Or (in case of roadload matrix family):
| Size designation | ||
| Make | : | |
| Type | : | |
| Rolling resistance | ||
| Front (kg/t) | : | |
| Rear (kg/t) | : | |
| Tyre pressure | ||
| Front (kPa) | : | |
| Rear (kPa) | : | |
2.1.4.
Bodywork
| Wind tunnel | ||
|---|---|---|
| H R | L R | |
| Type | AA/AB/AC/AD/AE/AF BA/BB/BC/BD | |
| Version | ||
| Aerodynamic devices | ||
| Movable aerodynamic body parts | y/n and list if applicable | |
| Installed aerodynamic options list | ||
| Delta (C D × A f ) LH compared to H R (m 2 ) | — | |
Or (in case of roadload matrix family):
| Body shape description | : | Square box (if no representative body shape for a complete vehicle can be determined) |
| Frontal area Afr (m 2 ) | : |
2.2
ON ROAD
2.2.1.
General
| H R | L R | |
|---|---|---|
| Make | ||
| Type | ||
| Version | ||
| Cycle energy demand over a complete WLTC Class 3 cycle (kJ) | ||
| Deviation from production series | ||
| Mileage |
Or (in case of roadload matrix family):
| Make | : | |
| Type | : | |
| Version | : | |
| Cycle energy demand over a complete WLTC (kJ) | : | |
| Deviation from production series | : | |
| Mileage (km) | : |
2.2.2
Masses
| H R | L R | |
|---|---|---|
| Test mass (kg) | ||
| Average mass m av (kg) | ||
| Value of m r (kg per axle) | ||
Category M vehicle: proportion of the vehicle mass in running order on the front axle (%) | ||
Category N vehicle: weight distribution (kg or %) |
Or (in case of roadload matrix family):
| Test mass (kg) | : | |
| Average mass mav (kg) | : | (average before and after the test) |
| Technically permissible maximum laden mass | : | |
| Estimated arithmetic average of the mass of optional equipment | : | |
Category M vehicle: proportion of the vehicle mass in running order on the front axle (%) | ||
Category N vehicle: weight distribution (kg or %) |
2.2.3
Tyres
| H R | L R | |
|---|---|---|
| Size designation | ||
| Make | ||
| Type | ||
| Rolling resistance | ||
| Front (kg/t) | ||
| Rear (kg/t) | ||
| Tyre pressure | ||
| Front (kPa) | ||
| Rear (kPa) | ||
Or (in case of roadload matrix family):
| Size designation | : | |
| Make | : | |
| Type | : | |
| Rolling resistance | ||
| Front (kg/t) | : | |
| Rear (kg/t) | : | |
| Tyre pressure | ||
| Front (kPa) | : | |
| Rear (kPa) | : | |
2.2.4.
Bodywork
| H R | L R | |
|---|---|---|
| Type | AA/AB/AC/AD/AE/AF BA/BB/BC/BD | |
| Version | ||
| Aerodynamic devices | ||
| Movable aerodynamic body parts | y/n and list if applicable | |
| Installed aerodynamic options list | ||
| Delta (C D × A f ) LH compared to H R (m 2 ) | — | |
Or (in case of roadload matrix family):
| Body shape description | : | Square box (if no representative body shape for a complete vehicle can be determined) |
| Frontal area A fr (m 2 ) | : |
2.3.
POWERTRAIN
2.3.1.
Vehicle High
| Engine code | : | |||
| Transmission type | : | manual, automatic, CVT | ||
Transmission model (manufacturer's codes) | : | (torque rating and no of clutches à to be included in info doc) | ||
Covered transmission models (manufacturer's codes) | : | |||
| Engine rotational speed divided by vehicle speed | : | Gear | Gear ratio | N/V ratio |
|---|---|---|---|---|
| 1st | 1/.. | |||
| 2nd | 1.. | |||
| 3rd | 1/.. | |||
| 4th | 1/.. | |||
| 5th | 1/.. | |||
| 6th | 1/.. | |||
| .. | ||||
| .. | ||||
| Electric machine(s) coupled in position N | : | n.a. (no electric machine or no coastdown mode) | ||
| Type and number of electric machines | : | construction type: asynchronous/ synchronous… | ||
| Type of coolant | : | air, liquid,… | ||
2.3.2.
Vehicle Low
Repeat §2.3.1. with VL data
2.4.
TEST RESULTS
2.4.1.
Vehicle High
| Dates of tests | : | dd/mm/yyyy (wind tunnel) dd/mm/yyyy (dynamometer) or dd/mm/yyyy (on road) |
ON ROAD
| Method of the test | : | coastdown or torque meter method |
| Facility (name / location / track's reference) | : | |
| Coastdown mode | : | y/n |
| Wheel alignment | : | Toe and camber values |
| Maximum reference speed (km/h) | : | |
| Anemometry | : | stationary or on board: influence of anemometry (C D × A) and if it was corrected. |
| Number of split(s) | : | |
| Wind | : | average, peaks and direction in conjunction with direction of the test track |
| Air pressure | : | |
| Temperature (mean value) | : | |
| Wind correction | : | y/n |
| Tyre pressure adjustment | : | y/n |
| Raw results | : | Torque method: c 0 = c 1 = c 2 = Coastdown method: f 0 f 1 f 2 |
| Final results | Torque method: c 0 = c 1 = c 2 = and f 0 = f 1 = f 2 = Coastdown method: f 0 = f 1 = f 2 = |
Or
WIND TUNNEL METHOD
| Facility (name/location/dynamometer's reference) | : | ||
| Qualification of the facilities | : | Report reference and date | |
| Dynamometer | |||
| Type of dynamometer | : | flat belt or chassis dynamometer | |
| Method | : | stabilised speeds or deceleration method | |
| Warm up | : | warm-up by dyno or by driving the vehicle | |
| Correction of the roller curve | : | (for chassis dynamometer, if applicable) | |
| Method of chassis dynamometer setting | : | Fixed run / iterative / alternative with its own warmup cycle | |
| Measured aerodynamic drag coefficient multiplied by the frontal area | : | Velocity (km/h) | C D × A (m 2 ) |
|---|---|---|---|
| … | … | ||
| … | … | ||
| Result | : | f 0 = f 1 = f 2 = | |
Or
ROAD LOAD MATRIX ON ROAD
| Method of the test | : | coastdown or torque meter method |
| Facility (name/location/track's reference) | : | |
| Coastdown mode | : | y/n |
| Wheel alignment | : | Toe and camber values |
| Maximum reference speed (km/h) | : | |
| Anemometry | : | stationary or on board: influence of anemometry (C D × A) and if it was corrected. |
| Number of split(s) | : | |
| Wind | : | average, peaks and direction in conjunction with direction of the test track |
| Air pressure | : | |
| Temperature (mean value) | : | |
| Wind correction | : | y/n |
| Tyre pressure adjustment | : | y/n |
| Raw results | : | Torque method: c 0r = c 1r = c 2r = Coastdown method: f 0r = f 1r = f 2r = |
| Final results | Torque method: c 0r = c 1r = c 2r = and f 0r (calculated for vehicle H M ) = f 2r (calculated for vehicle H M ) = f 0r (calculated for vehicle L M ) = f 2r (calculated for vehicle L M ) = Coastdown method: f 0r (calculated for vehicle H M ) = f 2r (calculated for vehicle H M ) = f 0r (calculated for vehicle L M ) = f 2r (calculated for vehicle L M ) = |
Or
ROAD LOAD MATRIX WIND TUNNEL METHOD
| Facility (name/location/dynamometer's reference) | : | ||
| Qualification of the facilities | : | Report reference and date | |
| Dynamometer | |||
| Type of dynamometer | : | flat belt or chassis dynamometer | |
| Method | : | stabilised speeds or deceleration method | |
| Warm up | : | warm-up by dyno or by driving the vehicle | |
| Correction of the roller curve | : | (for chassis dynamometer, if applicable) | |
| Method of chassis dynamometer setting | : | Fixed run / iterative / alternative with its own warmup cycle | |
| Measured aerodynamic drag coefficient multiplied by the frontal area | : | Velocity (km/h) | C D × A (m 2 ) |
|---|---|---|---|
| … | … | ||
| … | … | ||
| Result | : | f 0r = f 1r = f 2r = f 0r (calculated for vehicle H M ) = f 2r (calculated for vehicle H M ) = f 0r (calculated for vehicle L M ) = f 2r (calculated for vehicle L M ) = | |
2.4.2.
Vehicle Low
Repeat §2.4.1. with VL data
Annotations
Textual amendments
Notes on Annex I
Textual amendments
- F1
Words in Annex 1 substituted (31.12.2022 at 11.00 p.m.) by The Road Vehicles and Non-Road Mobile Machinery (Type-Approval) (Amendment and Transitional Provisions) (EU Exit) Regulations 2022 (S.I. 2022/1273), regs. 1(2), 81(2)(a)