Commission Regulation (EU) 2016/1718Show full title

Commission Regulation (EU) 2016/1718 of 20 September 2016 amending Regulation (EU) No 582/2011 with respect to emissions from heavy-duty vehicles as regards the provisions on testing by means of portable emission measurement systems (PEMS) and the procedure for the testing of the durability of replacement pollution control devices (Text with EEA relevance)

ANNEX IV

Annex XI to Regulation (EU) No 582/2011 is amended as follows:

(1)

point 4.3.2.4 is replaced by the following:

‘4.3.2.4.Durability of emissions performance

The exhaust after-treatment system tested in accordance with point 4.3.2.2 and incorporating the replacement pollution control device shall be subjected to the durability procedures described in Appendix 3.’;

(2)

the following point 4.3.5 is inserted:

‘4.3.5. Fuels

In the case described in point 1.1.2 of Annex I, the test procedure laid down in points 4.3.1 to 4.3.2.7 of this Annex shall be conducted with the fuels declared by the manufacturer of the original engine system. However, in agreement with the type-approval authority, the durability procedure set out in Appendix 3 and referred to in point 4.3.2.4 may be performed only with the fuel which represents the worst case in terms of ageing.’;

(3)

the following points 4.6 to 4.6.5 are inserted:

‘4.6.Requirements regarding compatibility with the NOx control measures (applicable only to replacement pollution control devices to be fitted to vehicles equipped with sensors directly measuring NOx concentration in the exhaust)

4.6.1.NOx control measures compatibility demonstration is required only when the original pollution control device was monitored in the original configuration.

4.6.2.The compatibility of the replacement pollution control device with the NOx control measures shall be demonstrated by using the procedures described in Annex XIII to this Regulation, for replacement pollution control devices intended to be fitted to engines or vehicles type-approved in accordance with Regulation (EC) No 595/2009 and this Regulation.

4.6.3.The provisions in UN/ECE Regulation No 49 applicable to components other than pollution control devices shall not apply.

4.6.4.The replacement pollution control device manufacturer may use the same preconditioning and test procedure as used during the original type-approval. In that case, the approval authority which granted original type-approval of an engine of a vehicle shall provide, on request and on a non-discriminatory basis, an information document presented as an appendix to the Information Document provided for in Appendix 4 to Annex I, which contains the number and type of preconditioning cycles and the type of test cycle used by the original equipment manufacturer for NOx control measures testing of the pollution control device.

4.6.5.Point 4.5.5 shall apply to NOx control measures monitored by the OBD system.’;

(4)

Appendix 3 is replaced by the following:

‘Appendix 3 Durability procedure for evaluation of emissions performance of a replacement pollution control device

1.This Appendix sets out the durability procedure referred to in point 4.3.2.4 of Annex XI, for the purpose of evaluating the emissions performance of a replacement pollution control device.

2. DESCRIPTION OF THE DURABILITY PROCEDURE

2.1.The durability procedure shall consist of a data collection phase and a service accumulation schedule.
2.2. Data collection phase
2.2.1.The selected engine, equipped with the complete exhaust after-treatment system incorporating the replacement pollution control device, shall be cooled down to ambient temperature and run one cold start WHTC test-cycle in accordance with paragraphs 7.6.1 and 7.6.2 of Annex 4 to UN/ECE Regulation No 49.
2.2.2.Immediately after the cold start WHTC test-cycle, the engine shall be run for nine consecutive hot start WHTC test-cycles in accordance with paragraph 7.6.4 of Annex 4 to UN/ECE Regulation No 49.
2.2.3.The test sequence set out in points 2.2.1 and 2.2.2 shall be carried out in accordance with the instructions laid down in paragraph 7.6.5 of Annex 4 to UN/ECE Regulation No 49.
2.2.4.Alternatively, the relevant data can be collected by driving a fully loaded vehicle equipped with the selected exhaust after-treatment system incorporating the replacement pollution control device. The test can be carried out either on the road following the trip requirements of points 4.5 to 4.5.5 of Annex II to this Regulation with comprehensive recording of the driving data, or on a suitable chassis dynamometer. If an on-road test is chosen, the vehicle shall be driven over a cold test-cycle, as set out in Appendix 5 to this Annex, followed by nine hot test-cycles, identical to the cold one, in a way that the work developed by the engine is the same as the one achieved under points 2.2.1 and 2.2.2. If a chassis dynamometer is chosen, the simulated road gradient of the test-cycle in Appendix 5 shall be adapted to match the work developed by the engine over the WHTC.
2.2.5.The type-approval authority shall refuse the temperature data obtained under point 2.2.4 if it deems those data to be unrealistic and shall request either the repetition of the test, or the carrying out of a test pursuant to points 2.2.1, 2.2.2 and 2.2.3.
2.2.6.Temperatures in the replacement pollution control device shall be recorded during the whole test sequence, at the location with the highest temperature.
2.2.7.In cases where the location with the highest temperature varies over time, or where that location is difficult to define, multiple bed temperatures should be recorded at suitable locations.
2.2.8.The number and locations of the temperature measurements shall be selected by the manufacturer, in agreement with the type-approval authority, based on best engineering judgement.
2.2.9.With the agreement of the type-approval authority, a single catalyst bed temperature or the catalyst inlet temperature may be used if measuring multiple bed temperatures is proven to be unfeasible or too difficult.

Figure 1

Example of temperature sensors location in a generic after-treatment device

Figure 2

Example of temperature sensors location for DPF

2.2.10.The temperatures shall be measured and recorded at a minimum rate of once every second (1 Hz) during the test sequence.
2.2.11.The measured temperatures shall be tabulated into a histogram with temperature bins no larger than 10 °C. In the case mentioned in point 2.2.7, the highest temperature each second shall be the one recorded in the histogram. Each bar of the histogram shall represent the cumulated frequency in seconds of the measured temperatures falling in the specific bin.
2.2.12.The time in hours corresponding to each temperature bin must be determined and then extrapolated to the useful life of the replacement pollution control device, in accordance with the values specified in Table 1. The extrapolation shall be based on the assumption that one WHTC cycle corresponds to 20 km driving.
Table 1

Useful life of the replacement pollution control device for each vehicle category, and equivalent WHTC test-cycles and hours of operation

Vehicle categoryMileage (km)Equivalent number of WHTC test-cyclesEquivalent number of hours
Engine systems fitted to vehicles of category M1, N1 and N2114 2865 7142 857
Engine systems fitted to vehicles of category N2, N3 with a maximum technically permissible mass not exceeding 16 tonnes and M3 Class I, Class II and Class A, and Class B with a maximum technically permissible mass exceeding 7,5 tonnes214 28610 7145 357
Engine systems fitted to vehicles of category N3 with a maximum technically permissible mass exceeding 16 tonnes, and M3, Class III and Class B with a maximum technically permissible mass exceeding 7,5 tonnes500 00025 00012 500
2.2.13.It is allowed to perform the data collection phase for different devices at the same time.
2.2.14.In the case of systems operating in the presence of active regeneration, the number, length and temperatures of the regenerations occurring during the test sequence defined in points 2.2.1 and 2.2.2 shall be recorded. If no active regeneration has occurred, the hot sequence defined in point 2.2.2 shall be extended in order to include at least two active regenerations.
2.2.15.The total lubricant consumed during the data collection period, in g/h, shall be recorded, using any suitable method, as for example the drain and weigh procedure described in Appendix 6. For this purpose, the engine shall be run during 24 hours, performing consecutive WHTC test-cycles. In cases where an accurate measurement of oil consumption cannot be obtained, the manufacturer, in agreement with the type-approval authority, may use the following options for the determination of the lubricant consumption:
(a)

a default value of 30 g/h;

(b)

a value requested by the manufacturer, based on sound data and information, and agreed with the type-approval authority.

2.3. Calculation of the equivalent ageing time corresponding to a reference temperature
2.3.1.The temperatures recorded pursuant to points 2.2 to 2.2.15 shall be reduced to a reference temperature Tr , requested by the manufacturer in agreement with the type-approval authority, within the range of the temperatures recorded during the data collection phase.
2.3.2.In the case specified in point 2.2.13, the value of Tr for each one of the devices may vary.
2.3.3.The equivalent ageing time corresponding to the reference temperature shall be calculated, for each bin referred to in 2.2.11, in accordance with the following equation:

Equation 1:

Where:

R

=

thermal reactivity of the replacement pollution control device.

The following values shall be used:

  • Diesel oxidation catalyst (DOC): 18 050

  • Catalysed DPF: 18 050

  • SCR or ammonia oxidation catalyst (AMOX) based on iron-zeolite (Fe-Z): 5 175

  • SCR copper-zeolite (Cu-Z): 11 550

  • SCR Vanadium (V): 5 175

  • LNT (lean-NOx trap): 18 050

Tr

=

reference temperature, in K.

=

mid-point temperature, in K, of the temperature bin i to which the replacement pollution control device is exposed during the data collection phase, registered in the temperature histogram.

=

the time, in hours, corresponding to the temperature , adjusted to a full useful life basis e.g. if the histogram represented 5 hours, and useful life is 4 000 hours according to Table 1, all histogram time entries would be multiplied by .

=

the equivalent ageing time, in hours, needed to achieve, by exposing the replacement pollution control device at the temperature Tr , the same amount of ageing as the one that would result from exposure of the replacement pollution control device at the temperature during the time .

i

=

bin number, where 1 is number for the bin with the lowest temperature and n the value for the bin with the highest temperature.

2.3.4.The total equivalent ageing time shall be calculated in accordance with the following equation:

Equation 2:

Where:

AT

=

total equivalent ageing time, in hours, needed to achieve, by exposing the replacement pollution control device at the temperature Tr , the same amount of ageing as the one that would result from exposure of the replacement pollution control device, over its useful life, to the temperature during the time of each one of the i bins registered in the histogram.

=

the equivalent ageing time, in hours, needed to achieve, by exposing the replacement pollution control device at the temperature Tr , the same amount of ageing as the one that would result from exposure of the replacement pollution control device at the temperature during the time .

i

=

bin number, where 1 is number for the bin with the lowest temperature and n the value for the bin with the highest temperature.

n

=

Total number of temperature bins.

2.3.5.In the case referred to in point 2.2.13, AT shall be calculated for each device.
2.4. Service accumulation schedule
2.4.1.General requirements
2.4.1.1.The service accumulation schedule shall allow acceleration of the ageing of the replacement pollution control device, using the information gathered during the data collection phase set out in point 2.2.
2.4.1.2.The service accumulation schedule shall consist of a thermal accumulation schedule and a lubricant consumption accumulation schedule in accordance with point 2.4.4.6. The manufacturer, in agreement with the type-approval authority, may not have to carry out a lubricant consumption accumulation schedule in case the replacement pollution control devices are placed downstream of an after-treatment filter component (e.g. diesel particulate filter). Both the thermal accumulation schedule and the lubricant consumption accumulation schedule shall consist of a repetition of, respectively, a series of thermal and lubricant consumption sequences.
2.4.1.3.In the case of replacement pollution control devices operating in the presence of active regeneration, the thermal sequence shall be complemented with an active regeneration mode.
2.4.1.4.For service accumulation schedules consisting of both thermal and lubricant consumption accumulation schedules, their respective sequences shall be alternated, so that for each thermal sequence that has to be performed, the following sequence corresponds to lubricant consumption.
2.4.1.5.It is allowed to perform the service accumulation schedule at the same time for different devices. In that case, a single service accumulation schedule shall be set for all the devices.
2.4.2.Thermal accumulation schedule
2.4.2.1.The thermal accumulation schedule shall simulate the effect of thermal ageing on the performance of a replacement pollution control device until the end of its lifetime.
2.4.2.2.The engine used for the performance of the service accumulation schedule, fitted with the exhaust after-treatment system incorporating the replacement pollution control device, is operated for a minimum of three consecutive thermal sequences, as set out in Appendix 4.
2.4.2.3.The temperatures shall be recorded over a minimum of two thermal sequences. The first sequence, conducted for warming up, shall not be taken into account for the purpose of temperature gathering.
2.4.2.4.The temperatures shall be recorded at suitable locations, chosen in accordance with points 2.2.6 to 2.2.9, at a minimum rate of once every second (1 Hz).
2.4.2.5.The effective ageing time corresponding to the thermal sequences referred to in point 2.4.2.3, shall be calculated in accordance with the following equations:

  • Equation 3:

  • Equation 4:

Where:

=

the effective ageing time, in hours, needed to achieve, by exposing the replacement pollution control device at the temperature Tr , the same amount of ageing as the one that would result from exposure of the replacement pollution control device at the temperature Ti during the second i.

Ti

=

the temperature, in K, measured in the second i, in each one of the thermal sequences.

R

=

thermal reactivity of the replacement pollution control device. The manufacturer shall agree with the type-approval authority on the R value to be used. It will also be possible, as alternative, to use the following default values:

  • Diesel oxidation catalyst (DOC): 18 050.

  • Catalysed DPF: 18 050

  • SCR or ammonia oxidation catalyst (AMOX) based on iron-zeolite (Fe-Z): 5 175

  • SCR copper-zeolite (Cu-Z): 11 550

  • SCR Vanadium (V): 5 175

  • LNT (lean-NOx trap): 18 050

Tr

=

reference temperature, in K, being the same value as in equation 1.

AE

=

Effective ageing time, in hours, needed to achieve, by exposing the replacement pollution control device at the temperature Tr , the same amount of ageing as the one that would result from exposure of the replacement pollution control device during the duration of the thermal sequence.

AT

=

total equivalent ageing time, in hours, needed to achieve, by exposing the replacement pollution control device at the temperature Tr , the same amount of ageing as the one that would result from exposure of the replacement pollution control device, over its useful life, to the temperature during the time of each one of the i bins registered in the histogram.

i

=

number of temperature measurement.

p

=

total number of temperature measurements.

nc

=

thermal sequence number, of those conducted for the purpose of temperature gathering, in accordance with point 2.4.2.3.

C

=

total number of thermal sequences conducted for the purpose of temperature gathering.

2.4.2.6.The total number of thermal sequences to be included in the service accumulation schedule shall be determined by applying the following equation:

Equation 5:

NTS = AT/AE

Where:

NTS

=

total number of thermal sequences to be carried out during the service accumulation schedule

AT

=

total equivalent ageing time, in hours, needed to achieve, by exposing the replacement pollution control device at the temperature Tr , the same amount of ageing as the one that would result from exposure of the replacement pollution control device, over its useful life, to the temperature during the time of each one of the i bins registered in the histogram.

AE

=

Effective ageing time, in hours, needed to achieve, by exposing the replacement pollution control device at the temperature Tr , the same amount of ageing as the one that would result from exposure of the replacement pollution control device during the duration of the thermal sequence.

2.4.2.7.It is allowed to reduce NTS and, consequently the service accumulation schedule, by increasing the temperatures at which each device is exposed at each mode of the ageing cycle through the application of one or several of the following measures:
(a)

insulating the exhaust pipe;

(b)

moving the replacement pollution control device closer to the exhaust manifold;

(c)

artificially heating up the temperature of the exhaust;

(d)

optimising the engine settings without substantially changing the emission behaviour of the engine.

2.4.2.8.When applying the measures referred to in points 2.4.4.6 and 2.4.4.7, the total ageing time calculated from NTS shall not be less than 10 % of the useful life listed in Table 1, e.g. the vehicle category N1 shall not have an NTS of less than 286 thermal sequences, assuming that each sequence is 1 hour long.
2.4.2.9.It is allowed to increase NTS and, consequently, the duration of the service accumulation schedule, by lowering the temperatures at each mode of the ageing cycle through the application of one or several of the following measures:
(a)

moving the replacement pollution control device further away from the exhaust manifold;

(b)

artificially cooling down the temperature of the exhaust;

(c)

optimising the engine settings.

2.4.2.10.In the case referred to in point 2.4.1.5, the following shall apply:
2.4.2.10.1.

NTS shall be the same for each device, so that a single service accumulation schedule can be set up.

2.4.2.10.2.

In order to achieve the same NTS for each device, a first NTS value shall be calculated for each device, with its own AT and AE values.

2.4.2.10.3.

If the calculated NTS values are different, one or more of the measures set out in points 2.4.2.7 to 2.4.2.10 may be applied on the device or devices for which NTS needs to be modified, over the thermal sequences referred to in point 2.4.2.3, in order to influence the measured Ti and therefore conveniently speed up or slow down the artificial ageing of the targeted device or devices.

2.4.2.10.4.

The new NTS values corresponding to the new temperatures Ti obtained in point 2.4.2.10.3 shall be calculated.

2.4.2.10.5.

The steps set out in points 2.4.2.10.3 and 2.4.2.10.4 shall be repeated until the NTS values obtained for each device in the system match.

2.4.2.10.6.

The Tr values used for obtaining the different NTS in points 2.4.2.10.4 and 2.4.2.10.5 shall be the same ones as those used in points 2.3.2 and 2.3.5 for calculating AT for each device.

2.4.2.11.In the case of an assembly of replacement pollution control devices constituting a system within the meaning of Article 3(25) of Directive 2007/46/EC, one of the following two options may be considered for the thermal ageing of the devices:
2.4.2.11.1.

The devices within the assembly may be either separately or jointly aged, in accordance with point 2.4.2.10.

2.4.2.11.2.

If the assembly is built in such a way that it is not possible to decouple the devices (e.g. DOC + SCR in a can), the thermal ageing of the assembly shall be carried out with the highest NTS .

2.4.3.Modified thermal accumulation schedule for devices operating in the presence of active regeneration
2.4.3.1.The modified thermal accumulation schedule for devices operating in the presence of active regeneration shall simulate the effect of ageing due to both thermal load and active regeneration on a replacement pollution control device at the end of its lifetime.
2.4.3.2.The engine used for the service accumulation schedule, fitted with the exhaust after-treatment system incorporating the replacement pollution control device, is operated for a minimum of three modified thermal sequences, consisting each sequence of a thermal sequence as set out in Appendix 4, followed by a complete active regeneration, during which the peak temperature reached in the after-treatment system should be not lower than the peak temperature recorded in the data collection phase.
2.4.3.3.The temperatures shall be recorded over a minimum of two modified thermal sequences. The first sequence, conducted for warming up, shall not be taken into account for the purpose of temperature gathering.
2.4.3.4.In order to minimise the time elapsed between the thermal sequence as set out in Appendix 4 and the subsequent active regeneration, the manufacturer may artificially trigger the active regeneration by running, after each thermal sequence as set out in Appendix 4, the engine at a steady mode that enables a high production of soot by the engine. In that case, the steady mode shall also be considered as part of the modified thermal sequence set out in point 2.4.3.2.
2.4.3.5.The effective ageing time corresponding to each modified thermal sequence shall be calculated using equations 3 and 4.
2.4.3.6.The total number of modified thermal sequences to be conducted during the service accumulation schedule shall be calculated using equation 5.
2.4.3.7.It is allowed to reduce NTS , and consequently the duration of the service accumulation schedule, by increasing the temperatures at each mode of the modified thermal sequence, applying one or several of the measures set out in point 2.4.2.7.
2.4.3.8.In addition to the measures referred to in point 2.4.3.7, NTS can also be reduced by increasing the peak temperature of the active regeneration within the modified thermal sequence, without exceeding a bed temperature of 800 °C under any circumstances.
2.4.3.9. NTS shall never be less than 50 % of the number of active regenerations to which the replacement pollution control device is subjected during its useful life, calculated in accordance with the following equation:

Equation 5:

Where:

NAR

=

number of active regeneration sequences over the useful life of the replacement pollution control device.

tWHTC

=

equivalent number of hours corresponding to the vehicle category for which the replacement pollution control device is intended, obtained from Table 1.

tAR

=

duration, in hours, of an active regeneration.

tBAR

=

time, in hours, between two consecutive active regenerations.

2.4.3.10.If, as consequence of the application of the minimum number of modified thermal sequences as set out in point 2.4.3.9, AE × NTS calculated using equation 4 exceeds the AT calculated using equation 2, the time of each mode of the thermal sequence set out in Appendix 4, and embedded in the modified thermal sequence as set out in point 2.4.3.2, may be reduced in the same proportion, in order to make AE × NTS = AT.
2.4.3.11.It is allowed to increase NTS and consequently the duration of the service accumulation schedule, by lowering the temperatures at each mode of the thermal-active regeneration sequence by applying one or several of the measures set out in point 2.4.2.9.
2.4.3.12.In the case referred to in point 2.4.1.5, points 2.4.2.10 and 2.4.2.11 shall apply
2.4.4.Lubricant consumption accumulation schedule
2.4.4.1.The lubricant consumption accumulation schedule shall simulate the effect of ageing due to chemical poisoning or deposit formation as a result of lubricant consumption, on the performance of a replacement pollution control device at the end of its lifetime.
2.4.4.2.The lubricant consumed, in g/h, shall be determined over a minimum of 24 thermal sequences or a corresponding number of modified thermal sequences, using any suitable method, as for example the drain and weigh procedure described in Appendix 6. Fresh lubricant shall be used.
2.4.4.3.The engine shall be equipped with a constant volume oil sump in order to avoid the need of “top-offs”, since oil level influences the oil consumption rate. Any suitable method, as for example the one described in the ASTM standard D7156-09, may be used.
2.4.4.4.The theoretical time, in hours, that the thermal accumulation schedule or modified thermal accumulation schedule, as it corresponds, would have to be conducted, in order to obtain the same lubricant consumption as the one corresponding to the useful life of the replacement control device, shall be calculated by applying the following equation:

Equation 6:

Where:

tTAS

=

theoretical duration, in hours, of the service accumulation schedule required to obtain the same lubricant consumption as the one corresponding to the useful life of the replacement pollution control device, provided that the service accumulation schedule is only made up of a series of consecutive thermal sequences or consecutive modified thermal sequences.

LCRWHTC

=

lubricant consumption rate, in g/h determined as set out in point 2.2.15.

tWHTC

=

equivalent number of hours corresponding to the vehicle category for which the replacement pollution control device is intended, obtained from Table 1.

LCRTAS

=

lubricant consumption rate, in g/h, determined as set out in point 2.4.4.2.

2.4.4.5.The number of thermal sequences or modified thermal sequences corresponding to tTAS shall be calculated by applying the following ratio:

Equation 7:

Where:

N

=

number of thermal sequences or modified thermal sequences corresponding to tTAS .

tTAS

=

theoretical duration, in hours, of the service accumulation schedule required to obtain the same lubricant consumption as the one corresponding to the useful life of the replacement pollution control device, provided that the service accumulation schedule was only made up of a series of consecutive thermal sequences or consecutive modified thermal sequences.

tTS

=

duration, in hours, of a single thermal sequence or modified thermal sequence.

2.4.4.6.The value of N shall be compared to the value of NTS calculated in accordance with point 2.4.2.6 or, for devices operating in the presence of active regeneration, in accordance with point 2.4.3.5. If N ≤ NTS , it is not necessary to add a lubricant consumption accumulation schedule to the thermal accumulation schedule. If N > NTS , a lubricant consumption accumulation schedule shall be added to the thermal accumulation schedule.
2.4.4.7.A lubricant consumption accumulation schedule may not have to be added if, by increasing the lubricant consumption as described in point 2.4.4.8.4, the needed lubricant consumption is already achieved with the conduction of the corresponding thermal accumulation schedule consisting of the performance of NTS thermal sequences or modified thermal sequences.
2.4.4.8.Development of the lubricant consumption accumulation schedule
2.4.4.8.1.The lubricant consumption accumulation schedule shall consist of a number of lubricant consumption sequences repeated several times, each lubricant consumption sequence being alternated with each thermal sequence or each modified thermal sequence.
2.4.4.8.2.Each lubricant consumption sequence shall consist of a steady mode at constant load and speed, the load and the speed being selected in such a way that the lubricant consumption is maximised and effective thermal aging is minimised. The mode shall be determined by the manufacturer in agreement with the type-approval authority, based on best engineering judgement.
2.4.4.8.3.The duration of each lubricant consumption sequence shall be determined as follows:
2.4.4.8.3.1.

The engine shall be run for an appropriate period of time at the load and speed determined by the manufacturer in accordance with point 2.4.4.8.2 and the lubricant consumed, in g/h, shall be determined using any suitable method, as for example the drain and weigh procedure described in Appendix 6. Lubricant changes are to be completed at the recommended intervals.

2.4.4.8.3.2.

The duration of each lubricant consumption sequence shall be calculated by applying the following equation:

Equation 8:

Where:

tLS

=

the duration, in hours, of a single lubricant consumption sequence

LCRWHTC

=

lubricant consumption rate, in g/h determined as set out in point 2.2.15.

tWHTC

=

equivalent number of hours corresponding to the vehicle category for which the replacement pollution control device is intended, obtained from Table 1.

LCRTAS

=

lubricant consumption rate, in g/h, determined as set out in point 2.4.4.2.

LCRLAS

=

lubricant consumption rate, in g/h, determined as set out in point 2.4.4.8.3.1.

tTS

=

duration, in hours, of a single thermal sequence, as set out in Appendix 4, or modified thermal sequence, as set out in point 2.4.3.2.

NTS

=

total number of thermal sequences or modified thermal sequences to be carried out during the service accumulation schedule.

2.4.4.8.4.The lubricant consumption rate shall always remain below 0,5 % of the engine fuel consumption rate in order to avoid excessive ash accumulation on the front face of the replacement pollution control device.
2.4.4.8.5.It is allowed to add the thermal ageing due to the conduction of the lubricant consumption sequence to the AE calculated in equation 4.
2.4.5.Development of the complete service accumulation schedule
2.4.5.1.The service accumulation schedule shall be built up alternating a thermal or a modified thermal sequence, as appropriate, with a lubricant consumption sequence. The aforementioned pattern shall be repeated NTS times, being the NTS value the one calculated either in accordance with Section 2.4.2 or with Section 2.4.3, as appropriate. An example of a complete service accumulation schedule is given in Appendix 7. A flowchart describing the development of a complete service accumulation schedule is given in Appendix 8.
2.4.6.Operation of the service accumulation schedule
2.4.6.1.The engine, fitted with the exhaust after-treatment system incorporating the replacement pollution control device, shall run the service accumulation schedule set out in point 2.4.5.1.
2.4.6.2.The engine used for the performance of the service accumulation schedule may be different to the engine used in the data collection phase, being the latter always the one for which the replacement pollution control device to be type-approved has been designed, and the one to be tested for emissions under point 2.4.3.2.
2.4.6.3.If the engine used for the performance of the service accumulation schedule features a larger displacement by 20 % or more than the engine used in the data collection phase, the exhaust system of the former should be equipped with a by-pass in order to replicate as closely as possible the exhaust flow rate of the latter at the ageing conditions selected.
2.4.6.4.In the case referred to in point 2.4.6.2, the engine used for the performance of the service accumulation schedule shall be type-approved under Regulation (EC) No 595/2009. In addition, if the device or devices under test are intended for being fitted in an engine system with exhaust gas recirculation (EGR), the engine system used for the service accumulation schedule shall also be fitted with an EGR. If the device or devices under test are intended for not being fitted in an engine system with EGR, the engine system used for the service accumulation schedule shall also not be fitted with an EGR.
2.4.6.5.The lubricant and the fuel used in the service accumulation schedule shall be as similar as possible to those used during the data collection phase set out in point 2.2. The lubricant must be in line with the recommendation of the engine manufacturer for which the pollution control device is designed. The fuels used should be market fuels fulfilling the corresponding requirements of Directive 98/70/EC. On the request of the manufacturer also reference fuels in accordance with this Regulation can be used.
2.4.6.6.The lubricant shall be changed for maintenance, at the intervals scheduled by the manufacturer of the engine used in the data collection phase.
2.4.6.7.In the case of an SCR, the urea injection shall be performed in accordance with the strategy defined by the manufacturer of the replacement pollution control device.’;”
(5)

the following Appendices 4 to 8 are added:

Appendix 4 Sequence for thermal ageing

ModeSpeed (% of high idle)Load (% for a given speed)Time (s)
12,920,58626
245,721,58418
338,873,37300
420,2311,36102
511,3714,9062
632,7818,52370
753,1220,19410
859,5334,73780
978,2454,38132
1039,0762,85212
1147,8262,94188
Regeneration mode (if applicable)To be defined (see point 2.4.3.4)To be defined (see point 2.4.3.4)To be defined (see point 2.4.3.4)
Lubricant consumption mode (if applicable)To be defined according to point 2.4.4.8.2To be defined according to point 2.4.4.8.2To be defined according to point 2.4.4.8.3

Note: The sequence of the modes 1 to 11 has been arranged by ascending load in order to maximise the temperature of the exhaust gas in the high load modes. With the agreement of the type-approval authority, this order can be modified in order to optimise the temperature of the exhaust gas if this can help in reducing the actual aging time.

Appendix 5 Test-cycle for chassis dynamometer or on-road data gathering

TimeSpeedTimeSpeedTimeSpeedTimeSpeedTimeSpeedTimeSpeedTimeSpeed
skm/hskm/hskm/hskm/hskm/hskm/hskm/h
1026122,3852135,4678118,331 04139,881 30166,391 56186,88
2026224,7552236,8178218,311 04241,251 30266,741 56286,7
3026325,5552337,9878318,051 04342,071 30367,431 56386,81
4026425,1852438,8478417,391 04443,031 30468,441 56486,81
5026523,9452539,4378516,351 04544,41 30569,521 56586,81
6026622,3552639,7378614,711 04645,141 30670,531 56686,81
72,3526721,2852739,878711,711 04745,441 30771,471 56786,99
85,5726820,8652839,697887,811 04846,131 30872,321 56887,03
98,1826920,6552939,297895,251 04946,791 30972,891 56986,92
109,3727020,1853038,597904,621 05047,451 31073,071 57087,1
119,8627119,3353137,637915,621 05148,681 31173,031 57186,85
1210,1827218,2353236,227928,241 05250,131 31272,941 57287,14
1310,3827316,9953334,1179310,981 05351,161 31373,011 57386,96
1410,5727415,5653431,1679413,151 05451,371 31473,441 57486,85
1510,9527513,7653527,4979515,471 05551,31 31574,191 57586,77
1611,5627611,553623,6379618,191 05651,151 31674,811 57686,81
1712,222778,6853720,1679720,791 05750,881 31775,011 57786,85
1812,972785,253817,2779822,51 05850,631 31874,991 57886,74
1914,332791,9953914,8179923,191 05950,21 31974,791 57986,81
2016,38280054012,5980023,541 06049,121 32074,411 58086,7
2118,4281054110,4780124,21 06148,021 32174,071 58186,52
2219,8628205428,8580225,171 06247,71 32273,771 58286,7
2320,852830,55438,1680326,281 06347,931 32373,381 58386,74
2421,522840,575448,9580427,691 06448,571 32472,791 58486,81
2521,892850,654511,380529,721 06548,881 32571,951 58586,85
2621,982860,5854614,1180632,171 06649,031 32671,061 58686,92
2721,91287054715,9180734,221 06748,941 32770,451 58786,88
2821,68288054816,5780835,311 06848,321 32870,231 58886,85
2921,21289054916,7380935,741 06947,971 32970,241 58987,1
3020,44290055017,2481036,231 07047,921 33070,321 59086,81
3119,24291055118,4581137,341 07147,541 33170,31 59186,99
3217,57292055220,0981239,051 07246,791 33270,051 59286,81
3315,53293055321,6381340,761 07346,131 33369,661 59387,14
3413,77294055422,7881441,821 07445,731 33469,261 59486,81
3512,95295055523,5981542,121 07545,171 33568,731 59586,85
3612,95296055624,2381642,081 07644,431 33667,881 59687,03
3713,35297055724,981742,271 07743,591 33766,681 59786,92
3813,75298055825,7281843,031 07842,681 33865,291 59887,14
3913,82299055926,7781944,141 07941,891 33963,951 59986,92
4013,41300056028,0182045,131 08041,091 34062,841 60087,03
4112,26301056129,2382145,841 08140,381 34162,211 60186,99
429,82302056230,0682246,41 08239,991 34262,041 60286,96
435,96303056330,3182346,891 08339,841 34362,261 60387,03
442,2304056430,2982447,341 08439,461 34462,871 60486,85
450305056530,0582547,661 08539,151 34563,551 60587,1
460306056629,4482647,771 08638,91 34664,121 60686,81
470307056728,682747,781 08738,671 34764,731 60787,03
480308056827,6382847,641 08839,031 34865,451 60886,77
490309056926,6682947,231 08940,371 34966,181 60986,99
501,87310057026,0383046,661 09041,031 35066,971 61086,96
514,97311057125,8583146,081 09140,761 35167,851 61186,96
528,4312057226,1483245,451 09240,021 35268,741 61287,07
539,9313057327,0883344,691 09339,61 35369,451 61386,96
5411,42314057428,4283443,731 09439,371 35469,921 61486,92
5515,11315057529,6183542,551 09538,841 35570,241 61587,07
5618,46316057630,4683641,141 09637,931 35670,491 61686,92
5720,21317057730,9983739,561 09737,191 35770,631 61787,14
5822,13318057831,3383837,931 09836,211 35870,681 61886,96
5924,17319057931,6583936,691 09935,321 35970,651 61987,03
6025,56320058032,0284036,271 10035,561 36070,491 62086,85
6126,97321058132,3984136,421 10136,961 36170,091 62186,77
6228,83322058232,6884237,141 10238,121 36269,351 62287,1
6331,05323058332,8484338,131 10338,711 36368,271 62386,92
6433,723243,0158432,9384438,551 10439,261 36467,091 62487,07
65363258,1458533,2284538,421 10540,641 36565,961 62586,85
6637,9132613,8858633,8984637,891 10643,091 36664,871 62686,81
6739,6532718,0858734,9684736,891 10744,831 36763,791 62787,14
6841,2332820,0158836,2884835,531 10845,331 36862,821 62886,77
6942,8532920,358937,5884934,011 10945,241 36963,031 62987,03
7044,133019,5359038,5885032,881 11045,141 37063,621 63086,96
7144,3733117,9259139,185132,521 11145,061 37164,81 63187,1
7244,333216,1759239,2285232,71 11244,821 37265,51 63286,99
7344,1733314,5559339,1185333,481 11344,531 37365,331 63386,92
7444,1333412,9259438,885434,971 11444,771 37463,831 63487,1
7544,1733511,0759538,3185536,781 11545,61 37562,441 63586,85
7644,513368,5459637,7385638,641 11646,281 37661,21 63686,92
7745,163375,1559737,2485740,481 11747,181 37759,581 63786,77
7845,643381,9659837,0685842,341 11848,491 37857,681 63886,88
7946,16339059937,185944,161 11949,421 37956,41 63986,63
8046,99340060037,4286045,91 12049,561 38054,821 64086,85
8148,19341060138,1786147,551 12149,471 38152,771 64186,63
8249,32342060239,1986249,091 12249,281 38252,221 64286,77
8349,7343060340,3186350,421 12348,581 38352,481 64386,77
8449,5344060441,4686451,491 12448,031 38452,741 64486,55
8548,98345060542,4486552,231 12548,21 38553,141 64586,59
8648,65346060642,9586652,581 12648,721 38653,031 64686,55
8748,65347060742,986752,631 12748,911 38752,551 64786,7
8848,87348060842,4386852,491 12848,931 38852,191 64886,44
8948,97349060941,7486952,191 12949,051 38951,091 64986,7
9048,96350061041,0487051,821 13049,231 39049,881 65086,55
9149,15351061140,4987151,431 13149,281 39149,371 65186,33
9249,51352061240,887251,021 13248,841 39249,261 65286,48
9349,74353061341,6687350,611 13348,121 39349,371 65386,19
9450,313540,961442,4887450,261 13447,81 39449,881 65486,37
9550,78355261542,7887550,061 13547,421 39550,251 65586,59
9650,753564,0861642,3987649,971 13645,981 39650,171 65686,55
9750,783577,0761740,7887749,671 13742,961 39750,51 65786,7
9851,2135810,2561837,7287848,861 13839,381 39850,831 65886,63
9951,635912,7761933,2987947,531 13935,821 39951,231 65986,55
10051,8936014,4462027,6688045,821 14031,851 40051,671 66086,59
10152,0436115,7362121,4388143,661 14126,871 40151,531 66186,55
10251,9936217,2362215,6288240,911 14221,411 40250,171 66286,7
10351,9936319,0462311,5188337,781 14316,411 40349,991 66386,55
10452,3636420,966249,6988434,891 14412,561 40450,321 66486,7
10552,5836522,946259,4688532,691 14510,411 40551,051 66586,52
10652,4736625,0562610,2188630,991 1469,071 40651,451 66686,85
10752,0336727,3162711,7888729,311 1477,691 407521 66786,55
10851,4636829,5462813,688827,291 1486,281 40852,31 66886,81
10951,3136931,5262915,3388924,791 1495,081 40952,221 66986,74
11051,4537033,1963017,1289021,781 1504,321 41052,661 67086,63
11151,4837134,6763118,9889118,511 1513,321 41153,181 67186,77
11251,2937236,1363220,7389215,11 1521,921 41253,81 67287,03
11351,1237337,6363322,1789311,061 1531,071 41354,531 67387,07
11450,9637439,0763423,298946,281 1540,661 41455,371 67486,92
11550,8137540,0863524,198952,241 15501 41556,291 67587,07
11650,8637640,4463624,9789601 15601 41657,311 67687,18
11751,3437740,2663725,689701 15701 41757,941 67787,32
11851,6837839,2963825,9689801 15801 41857,861 67887,36
11951,5837937,2363925,8689901 15901 41957,751 67987,29
12051,3638034,1464024,6990001 16001 42058,671 68087,58
12151,3938130,1864121,8590101 16101 42159,41 68187,61
12250,9838225,7164217,459022,561 16201 42259,691 68287,76
12348,6338321,5864312,349034,811 16301 42360,021 68387,65
12444,8338418,56447,599046,381 16401 42460,211 68487,61
12540,338516,5664549058,621 16501 42560,831 68587,65
12635,6538615,396461,7690610,371 16601 42661,161 68687,65
12730,2338714,77647090711,171 16701 42761,61 68787,76
12824,0838814,58648090813,321 16801 42862,151 68887,76
12918,9638914,72649090915,941 16901 42962,71 68987,8
13014,1939015,44650091016,891 17001 43063,651 69087,72
1318,7239116,92651091117,131 17101 43164,271 69187,69
1323,4139218,69652091218,041 17201 43264,311 69287,54
1330,6439320,26653091319,961 17301 43364,131 69387,76
134039421,63654091422,051 17401 43464,271 69487,5
135039522,91655091523,651 17501 43565,221 69587,43
136039624,13656091625,721 17601 43666,251 69687,47
137039725,18657091728,621 17701 43767,091 69787,5
138039826,166582,9691831,991 17801 43868,371 69887,5
139039927,416597,991935,071 17901 43969,361 69987,18
140040029,1866013,4992037,421 18001 44070,571 70087,36
141040131,3666118,3692139,651 18101 44171,891 70187,29
1420,6340233,5166222,5992241,781 18201 44273,351 70287,18
1431,5640335,3366326,2692343,041 18301 44374,641 70386,92
1442,9940436,9466429,492443,551 18401 44475,811 70487,36
1454,540538,666532,2392542,971 18501 44577,241 70587,03
1465,3940640,4466634,9192641,081 18601 44678,631 70687,07
1475,5940742,2966737,3992740,381 18701 44779,321 70787,29
1485,4540843,7366839,6192840,431 18801 44880,21 70886,99
1495,240944,4766941,6192940,41 18901 44981,671 70987,25
1504,9841044,6267043,5193040,251 19001 45082,111 71087,14
1514,6141144,4167145,3693140,321 19101 45182,911 71186,96
1523,8941243,9667247,1793240,81 19201 45283,431 71287,14
1533,2141343,4167348,9593341,711 19301 45383,791 71387,07
1542,9841442,8367450,7393443,161 19401 45483,51 71486,92
1553,3141542,1567552,3693544,841 19501 45584,011 71586,88
1564,1841641,2867653,7493646,421 1961,541 45683,431 71686,85
1575,0741740,1767755,0293747,911 1974,851 45782,991 71786,92
1585,5241838,967856,2493849,081 1989,061 45882,771 71886,81
1595,7341937,5967957,2993949,661 19911,81 45982,331 71986,88
1606,0642036,3968058,1894050,151 20012,421 46081,781 72086,66
1616,7642135,3368158,9594150,941 20112,071 46181,811 72186,92
1627,742234,368259,4994251,691 20211,641 46281,051 72286,48
1638,3442333,0768359,8694353,51 20311,691 46380,721 72386,66
1648,5142431,4168460,394455,91 20412,911 46480,611 72486,74
1658,2242529,1868561,0194557,111 20515,581 46580,461 72586,37
1667,2242626,4168661,9694657,881 20618,691 46680,421 72686,48
1675,8242723,468763,0594758,631 20721,041 46780,421 72786,33
1684,7542820,968864,1694858,751 20822,621 46880,241 72886,3
1694,2442919,5968965,1494958,261 20924,341 46980,131 72986,44
1704,0543019,3669065,8595058,031 21026,741 47080,391 73086,33
1713,9843119,7969166,2295158,281 21129,621 47180,721 73186
1723,9143220,4369266,1295258,671 21232,651 47281,011 73286,33
1733,8643320,7169365,0195358,761 21335,571 47381,521 73386,22
1744,1743420,5669462,2295458,821 21438,071 47482,41 73486,08
1755,3243519,9669557,4495559,091 21539,711 47583,211 73586,22
1767,5343620,2269651,4795659,381 21640,361 47684,051 73686,33
17710,8943721,4869745,9895759,721 21740,61 47784,851 73786,33
17814,8143823,6769841,7295860,041 21841,151 47885,421 73886,26
17917,5643926,0969938,2295960,131 21942,231 47986,181 73986,48
18018,3844028,1670034,6596059,331 22043,611 48086,451 74086,48
18117,4944129,7570130,6596158,521 22145,081 48186,641 74186,55
18215,1844230,9770226,4696257,821 22246,581 48286,571 74286,66
18313,0844331,9970322,3296356,681 22348,131 48386,431 74386,66
18412,2344432,8470418,1596455,361 22449,71 48486,581 74486,59
18512,0344533,3370513,7996554,631 22551,271 48586,81 74586,55
18611,7244633,457069,2996654,041 22652,81 48686,651 74686,74
18710,6944733,277074,9896753,151 22754,31 48786,141 74786,21
1888,6844832,667081,7196852,021 22855,81 48886,361 74885,96
1896,244931,73709096951,371 22957,291 48986,321 74985,5
1904,0745030,58710097051,411 23058,731 49086,251 75084,77
1912,6545129,2711097152,21 23160,121 49185,921 75184,65
1921,9245227,56712097253,521 23261,51 49286,141 75284,1
1931,6945325,71713097354,341 23362,941 49386,361 75383,46
1941,6845423,76714097454,591 23464,391 49486,251 75482,77
1951,6645521,87715097554,921 23565,521 49586,51 75581,78
1961,5345620,15716097655,691 23666,071 49686,141 75681,16
1971,345718,38717097756,511 23766,191 49786,291 75780,42
198145815,93718097856,731 23866,191 49886,41 75879,21
1990,7745912,33719097956,331 23966,431 49986,361 75978,48
2000,634607,99720098055,381 24067,071 50085,631 76077,49
2010,594614,19721098154,991 24168,041 50186,031 76176,69
2020,594621,77722098254,751 24269,121 50285,921 76275,92
2030,574630,69723098354,111 24370,081 50386,141 76375,08
2040,534641,13724098453,321 24470,911 50486,321 76473,87
2050,54652,2725098552,411 24571,731 50585,921 76572,15
20604663,59726098651,451 24672,661 50686,111 76669,69
20704674,88727098750,861 24773,671 50785,911 76767,17
20804685,85728098850,481 24874,551 50885,831 76864,75
20904696,72729098949,61 24975,181 50985,861 76962,55
21004708,02730099048,551 25075,591 51085,51 77060,32
211047110,02731099147,871 25175,821 51184,971 77158,45
212047212,59732099247,421 25275,91 51284,81 77256,43
213047315,43733099346,861 25375,921 51384,21 77354,35
214047418,32734099446,081 25475,871 51483,261 77452,22
215047521,19735099545,071 25575,681 51582,771 77550,25
216047624736099643,581 25675,371 51681,781 77648,23
217047726,75737099741,041 25775,011 51781,161 77746,51
218047829,53738099838,391 25874,551 51880,421 77844,35
219047932,31739099935,691 25973,81 51979,211 77941,97
220048034,874001 00032,681 26072,711 52078,831 78039,33
221048136,7374101 00129,821 26171,391 52178,521 78136,48
222048238,0874201 00226,971 26270,021 52278,521 78233,8
223048339,1174301 00324,031 26368,711 52378,811 78331,09
224048440,1674401 00421,671 26467,521 52479,261 78428,24
225048541,1874501 00520,341 26566,441 52579,611 78526,81
2260,7348641,7574601 00618,91 26665,451 52680,151 78623,33
2270,7348741,8774701 00716,211 26764,491 52780,391 78719,01
228048841,4374801 00813,841 26863,541 52880,721 78815,05
229048939,9974901 00912,251 26962,61 52981,011 78912,09
230049037,7175001 01010,41 27061,671 53081,521 7909,49
231049134,9375101 0117,941 27160,691 53182,41 7916,81
232049231,7975201 0126,051 27259,641 53283,211 7924,28
233049328,6575301 0135,671 27358,61 53384,051 7932,09
234049425,9275401 0146,031 27457,641 53485,151 7940,88
235049523,9175501 0157,681 27556,791 53585,921 7950,88
236049622,8175601 01610,971 27655,951 53686,981 7960
237049722,5375701 01714,721 27755,091 53787,451 7970
238049822,6275801 01817,321 27854,21 53887,541 7980
239049922,9575901 01918,591 27953,331 53987,251 7990
240050023,5176001 02019,351 28052,521 54087,041 8000
241050124,0476101 02120,541 28151,751 54186,98
242050224,4576201 02221,331 28250,921 54287,05
243050324,8176301 02322,061 28349,91 54387,1
244050425,2976401 02423,391 28448,681 54487,25
245050525,9976501 02525,521 28547,411 54587,25
246050626,8376601 02628,281 28646,51 54687,07
247050727,676701 02730,381 28746,221 54787,29
248050828,1776801 02831,221 28846,441 54887,14
249050928,6376901 02932,221 28947,351 54987,03
250051029,0477001 03033,781 29049,011 55087,25
251051129,4377101 03135,081 29150,931 55187,03
252051229,787721,61 03235,911 29252,791 55287,03
2531,5151330,137735,031 03336,061 29354,661 55387,07
2544,1251430,577749,491 03435,51 29456,61 55486,81
2557,0251531,1775131 03534,761 29558,551 55586,92
2569,4551631,6577614,651 03634,71 29660,471 55686,66
25711,8651732,1477715,151 03735,411 29762,281 55786,92
25814,5251832,6277815,671 03836,651 29863,91 55886,59
25917,0151933,2577916,761 03937,571 29965,21 55986,92
26019,4852034,278017,881 04038,511 30066,021 56086,59

Appendix 6 Drain and weigh procedure

1.The engine shall be filled with new oil. If a constant volume oil sump system (as described in ASTM standard D7156-09) is used, the oil pump shall be turned on while filling the engine. Enough oil charge shall be added to fill up both the engine and external sump.

2.The engine shall be started and operated over the desired test cycle (see points 2.2.15 and 2.4.4.8.3.1) for a minimum of 1 hour.

3.Once the cycle is complete, oil temperature shall be allowed to stabilise at a steady-state engine condition before shutting the engine down.

4.A clean, empty oil drain pan shall be weighed.

5.Any clean supplies that are to be used during the oil drain (e.g. rags) shall be weighed.

6.The oil shall be drained for 10 minutes with the external oil pump (if equipped) powered on followed by an additional ten minutes with the pump powered off. If a constant volume sump system is not used, the oil shall be drained from the engine for a total of 20 minutes.

7.The drained oil shall be weighed.

8.The weight determined in accordance with step 7 shall be subtracted from the weight determined in accordance with step 4. The difference corresponds to the total weight of the oil removed from the engine and collected in the drain pan.

9.The oil shall be carefully returned to the engine.

10.The empty drain pan shall be weighted.

11.The weight determined in accordance with step 10 shall be subtracted from the weight determined in accordance with step 4. The result corresponds to the weight of the residual oil in the drain pan that was not returned to the engine.

12.Any dirty supplies which have previously been weighed pursuant to step 5 shall be weighed.

13.The weight determined in accordance with step 12 shall be subtracted from the weight determined in accordance with step 5. The result corresponds to the weight of the residual oil which remained on the dirty supplies that was not returned to the engine.

14.The residual oil weights calculated in accordance with steps 11 and 13 shall be subtracted from the total weight of the oil removed, calculated in accordance with step 8. The difference between those weights corresponds to the total weight of the oil returned to the engine.

15.The engine shall be operated under the desired test cycle(s) (see points 2.2.15 and 2.4.4.8.3.1).

16.Steps 3-8 shall be repeated.

17.The weight of the oil drained pursuant to step 16 shall be subtracted from the weight obtained in accordance with step 14. The difference between those weights corresponds to the total weight of the oil consumed.

18.The total weight of the oil consumed calculated pursuant to step 14 shall be divided by the duration, in hours, of the test cycles carried out in accordance with step 15. The result is the lubricant consumption rate.

Appendix 7 Example of service accumulation schedule including thermal, lubricant consumption and regeneration sequences

Appendix 8 Flowchart on the performance of the service accumulation schedule

”.