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Section 6.1 is replaced by the following: ‘6.1. General 6.1.1. Emission control equipment 6.1.1.1. The components liable to affect, where appropriate, the emission of gaseous and particulate pollutants from diesel and gas engines shall be so designed, constructed, assembled and installed as to enable the engine, in normal use, to comply with the provisions of this Directive. The use of a defeat strategy is forbidden. 6.1.2.1. The use of a multi-setting engine is forbidden until appropriate and robust provisions for multi-setting engines are laid down in this Directive (*). 6.1.3. Emission control strategy 6.1.3.1. Any element of design and emission control strategy (ECS) liable to affect the emission of gaseous and particulate pollutants from diesel engines and the emission of gaseous pollutants from gas engines shall be so designed, constructed, assembled and installed as to enable the engine, in normal use, to comply with the provisions of this Directive. ECS consists of the base emission control strategy (BECS) and usually one or more auxiliary emission control strategies (AECS). 6.1.4. Requirements for base emission control strategy 6.1.4.1. The base emission control strategy (BECS) shall be so designed as to enable the engine, in normal use, to comply with the provisions of this Directive. Normal use is not restricted to the conditions of use as specified in paragraph 6.1.5.4. 6.1.5. Requirements for auxiliary emission control strategy 6.1.5.1. An auxiliary emission control strategy (AECS) may be installed to an engine or on a vehicle provided that the AECS: 6.1.5.2. An auxiliary emission control strategy (AECS) that operates within the conditions of use specified in section 6.1.5.4 and which results in the use of a different or modified emission control strategy (ECS) to that normally employed during the applicable emission test cycles will be permitted if, in complying with the requirements of section 6.1.7, it is fully demonstrated that the measure does not permanently reduce the effectiveness of the emission control system. In all other cases, such strategy shall be considered to be a defeat strategy. 6.1.5.3. An auxiliary emission control strategy (AECS) that operates outside the conditions of use specified in section 6.1.5.4 will be permitted if, in complying with the requirements of section 6.1.7, it is fully demonstrated that the measure is the minimum strategy necessary for the purposes of paragraph 6.1.5.6 with respect to environmental protection and other technical aspects. In all other cases, such a strategy shall be considered to be a defeat strategy. 6.1.5.4. As provided for in section 6.1.5.1, the following conditions of use apply under steady state and transient engine operations: 6.1.5.5. An auxiliary emission control strategy (AECS) may be installed to an engine, or on a vehicle, provided that the operation of the AECS is included in the applicable type-approval test and is activated according to section 6.1.5.6. 6.1.5.6. The AECS is activated: 6.1.6. Requirements for torque limiters 6.1.6.1. A torque limiter will be permitted if it complies with the requirements of section 6.1.6.2. or 6.5.5. In all other cases, a torque limiter shall be considered to be a defeat strategy. 6.1.6.2. A torque limiter may be installed to an engine, or on a vehicle, provided that: 6.1.7. Special requirements for electronic emission control systems 6.1.7.1. Documentation requirements The manufacturer shall provide a documentation package that gives access to any element of design and emission control strategy (ECS), and torque limiter of the engine system and the means by which it controls its output variables, whether that control is direct or indirect. The documentation shall be made available in two parts: The additional material shall also contain a justification for the use of any AECS and include additional material and test data to demonstrate the effect on exhaust emissions of any AECS installed to the engine or on the vehicle. The justification for the use of an AECS may be based on test data and/or sound engineering analysis. This additional material shall remain strictly confidential, and be made available to the type-approval authority on request. The type-approval authority will keep this material confidential. 6.1.8. Specifically for the type-approval of engines according to row A of the tables in section 6.2.1 (engines not normally tested on ETC) 6.1.8.1. To verify whether any strategy or measure should be considered a defeat strategy according to the definitions given in section 2, the type-approval authority and/or the technical service may additionally request a NOx screening test using the ETC which may be carried out in combination with either the type-approval test or the procedures for checking the conformity of production. 6.1.8.2. In verifying whether any strategy or measure should be considered a defeat strategy according to the definitions given in section 2, an additional margin of 10 %, related to the appropriate NOx limit value, shall be accepted. 6.1.9. The transitional provisions for extension of type-approval are given in section 6.1.5 of Annex I to Directive 2001/27/EC. Until the 8 November 2006, the existing approval certificate number will remain valid. In case of extension, only the sequential number to denote the extension base approval number will change as follows: Example for the second extension of the fourth approval corresponding to application date A, issued by Germany: e1*88/77*2001/27A*0004*02 6.1.10. Provisions for electronic system security 6.1.10.1. Any vehicle with an Emission Control Unit must include features to deter modification, except as authorised by the manufacturer. The manufacturer shall authorise modifications if these modifications are necessary for the diagnosis, servicing, inspection, retrofitting or repair of the vehicle. Any reprogrammable computer codes or operating parameters must be resistant to tampering and afford a level of protection at least as good as the provisions in ISO 15031-7 (SAE J2186) provided that the security exchange is conducted using the protocols and diagnostic connector as prescribed in section 6 of Annex IV to Directive 2005/78/EC. Any removable calibration memory chips must be potted, encased in a sealed container or protected by electronic algorithms and must not be changeable without the use of specialised tools and procedures. 6.1.10.2. Computer-coded engine operating parameters must not be changeable without the use of specialised tools and procedures (e.g. soldered or potted computer components or sealed (or soldered) computer enclosures). 6.1.10.3. Manufacturers must take adequate steps to protect the maximum fuel delivery setting from tampering while a vehicle is in-service. 6.1.10.4. Manufacturers may apply to the approval authority for an exemption from one of these requirements for those vehicles that are unlikely to require protection. The criteria that the approval authority will evaluate in considering an exemption will include, but are not limited to, the current availability of performance chips, the high-performance capability of the vehicle and the projected sales volume of the vehicle. 6.1.10.5. Manufacturers using programmable computer code systems (e.g. electrical erasable programmable read-only memory, EEPROM) must deter unauthorised reprogramming. Manufacturers must include enhanced tamper-protection strategies and write protect features requiring electronic access to an off-site computer maintained by the manufacturer. Alternative methods giving an equivalent level of tamper protection may be approved by the authority. (*) The Commission will determine whether specific measures regarding multi-setting engines need to be laid down in this Directive at the same time as a proposal addressing the requirements of Article 10 of this Directive." (**) Up to 1 October 2008, the following applies: “an ambient temperature within the range 279 K to 303 K (6 °C to 30 °C)”." (***) This temperature range will be reconsidered as part of the review of this Directive with special emphasis on the appropriateness of the lower temperature boundary.’ " operates only outside the conditions of use specified in paragraph 6.1.5.4 for the purposes defined in paragraph 6.1.5.5, or is activated only exceptionally within the conditions of use specified in paragraph 6.1.5.4 for the purposes defined in paragraph 6.1.5.6. and not longer than is needed for these purposes. an altitude not exceeding 1 000 metres (or equivalent atmospheric pressure of 90 kPa), and an ambient temperature within the range 275 K to 303 K (2 °C to 30 °C) (**) (***), and engine coolant temperature within the range 343 K to 373 K (70 °C to 100 °C). only by on-board signals for the purpose of protecting the engine system (including air-handling device protection) and/or vehicle from damage, or for purposes such as operational safety, permanent emission default modes and limp-home strategies, or for such purposes as excessive emissions prevention, cold start or warming-up, or if it is used to trade-off the control of one regulated pollutant under specific ambient or operating conditions in order to maintain control of all other regulated pollutants within the emission limit values that are appropriate for the engine in question. The overall effects of such an AECS is to compensate for naturally occurring phenomena and do so in a manner that provides acceptable control of all emission constituents. the torque limiter is activated only by on-board signals for the purpose of protecting the powertrain or vehicle construction from damage and/or for the purpose of vehicle safety, or for power take-off activation when the vehicle is stationary, or for measures to ensure the correct functioning of the deNOx system, and the torque limiter is active only temporarily, and the torque limiter does not modify the emission control strategy (ECS), and in case of power take-off or powertrain protection the torque is limited to a constant value, independent from the engine speed, while never exceeding the full-load torque, and is activated in the same manner to limit the performance of a vehicle in order to encourage the driver to take the necessary measures in order to ensure the correct functioning of NOx control measures within the engine system. the formal documentation package, which shall be supplied to the technical service at the time of submission of the type-approval application, shall include a full description of the ECS and, if applicable, the torque limiter. This documentation may be brief, provided that it exhibits evidence that all outputs permitted by a matrix obtained from the range of control of the individual unit inputs have been identified. This information shall be attached to the documentation required in section 3 of this Annex; additional material that shows the parameters that are modified by any auxiliary emission control strategy (AECS) and the boundary conditions under which the AECS operates. The additional material shall include a description of the fuel system control logic, timing strategies and switch points during all modes of operation. It shall also include a description of the torque limiter described in section 6.5.5 of this Annex.

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Source: EUR-Lex (Cellar) · retrieved 2026-11-10 · Text as adopted (Official Journal); later amendments are not incorporated in this text.