Approvals may also be extended to vehicles which: a Are up to kg heavier than the family member tested, provided that they are within kg of the lightest member of the family, b Have a lower overall transmission ratio than the family member tested due solely to a change in tyre sizes, and c Conform to the family in all other respects. For vehicles of category N 1 that are approved as members of a vehicle family using the procedure in paragraph 7. Approval of vehicles of category N 1 within a family, if powered by an internal combustion engine only or by a hybrid electric power train Vehicles of category N can be approved within a family as defined in paragraph 7. N vehicles may be grouped together into a family for the purposes of this Regulation if the following parameters are identical or within the specified limits: a Manufacturer and type as defined in Annex 4 to this Regulation, item 2.
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Introduction This annex defines the specific provisions regarding type approval of a vehicle equipped with a periodically regenerating system as defined in paragraph 2. Scope and extension of the type approval Vehicle family groups equipped with periodically regenerating system The procedure applies to vehicles equipped with a periodically regenerating system as defined in paragraph 2.
For the purpose of this annex vehicle family groups may be established. Accordingly, those vehicle types with regenerative systems, whose parameters described below are identical, or within the stated tolerances, shall be considered to belong to the same family with respect to measurements specific to the defined periodically regenerating systems. Periodically regenerating system i. Construction i. Vehicle types of different reference masses The Ki factor developed by the procedures in this annex for type approval of a vehicle type with a periodically regenerating system as defined in paragraph 2.
Instead of carrying out the test procedures defined in the following paragraph, a fixed Ki value of 1. Test procedure The vehicle may be equipped with a switch capable of preventing or permitting the regeneration process provided that this operation has no effect on original engine calibration.
This switch shall be permitted only for the purpose of preventing regeneration during loading of the regeneration system and during the pre-conditioning cycles.
Measurement of carbon dioxide emission and fuel consumption between two cycles where regenerative phases occur The average of carbon dioxide emission and fuel consumption between regeneration phases and during loading of the regenerative device shall be determined from the arithmetic mean of several approximately equidistant if more than 2 Type I operating cycles or equivalent engine test bench cycles. In this case, the carbon dioxide emission and fuel consumption measured during the regular Type I test may be used.
In any other case emissions measurement for at least two Type I operating cycles or equivalent engine test bench cycles must be completed: one immediately after regeneration before new loading and one as close as possible prior to a regeneration phase. All emissions measurements and calculations shall be carried out according to Annex 6. Determination of average emissions for a single regenerative system shall be according to paragraph 3. The loading process and Ki determination shall be made during the Type I operating cycle, on a chassis dynamometer or on an engine test bench using an equivalent test cycle.
These cycles may be run continuously i. After any number of completed cycles, the vehicle may be removed from the chassis dynamometer, and the test continued at a later time. Measurement of carbon dioxide emission and fuel consumption during regeneration Preparation of the vehicle, if required, for the emissions test during a regeneration phase, may be completed using the preparation cycles in paragraph 5.
The test and vehicle conditions for the test described in Annex 6 apply before the first valid emission test is carried out. Regeneration must not occur during the preparation of the vehicle. Any other method agreed between the manufacturer and the type approval authority. A cold-start exhaust emission test including a regeneration process shall be performed according to the Type I operating cycle, or equivalent engine test bench cycle.
If the emissions tests between two cycles where regeneration phases occur are carried out on an engine test bench, the emissions test including a regeneration phase shall also be carried out on an engine test bench. If the regeneration process requires more than one operating cycle, subsequent test cycle s shall be driven immediately, without switching the engine off, until complete regeneration has been achieved each cycle shall be completed.
The time necessary to set up a new test should be as short as possible e. The engine must be switched off during this period. The carbon dioxide emission and fuel consumption values during regeneration Mri shall be calculated according to Annex 6. The number of operating cycles d measured for complete regeneration shall be recorded. Calculation of the combined carbon dioxide emission and fuel consumption of a single regenerative system 3.
Ki may be determined following the completion of a single sequence. M si1? M ri1? Extension of approval for a multiple periodic regeneration system If the technical parameter s and or the regeneration strategy of a multiple regeneration system for all events within this combined system are changed, the complete procedure including all regenerative devices should be performed by measurements to update the multiple Ki factor. If a single device of the multiple regeneration system changed only in strategy parameters i.
New European Driving Cycle
The cycles may be performed on a flat road, in the absence of wind. However, to improve repeatability , they are generally performed on a roller test bench. This type of bench is equipped with an electrical machine to emulate resistance due to aerodynamic drag and vehicle mass inertia. For each vehicle configuration, a look-up table is applied: each speed corresponds to a certain value of resistance reverse torque applied to the drive wheels. This arrangement enables the use of a single physical vehicle to test all vehicle body styles Sedan, hatchback, MPV etc. A fan is coupled to the roller bench to provide the vehicle air intakes with an airflow matching the current speed. Many more tests can be performed during vehicle development with this arrangement than with conventional road tests.
EUR-Lex Access to European Union law
R15 — emissions and fuel consumption superseded by R83, R84 and R R24 — engine power measurement, smoke emissions, engine type approval R51 — noise emissions R68 — measurement of the maximum speed R83 — emission of pollutants according to engine fuel requirements R84 — measurement of fuel consumption R85 — electric drive trains — measurement of the net power and the maximum 30 minutes power of electric drive trains R — approval of battery electric vehicles with regard to specific requeriments for the construction , Functional Safety and hydrogen emission. However, both the United States and Canada are parties to the Agreement. UN-specification vehicles and components which do not also comply with the US regulations therefore cannot be imported to the US without extensive modifications. If reason develops to believe the certification was false or improper — i. Vehicle and equipment makers are permitted to appeal such penalties, but this is a difficult direction. A similar approach was evident with the US mandatory side marker lights.