[F1ANNEX I U.K. [F2SCOPE, DEFINITIONS, APPLICATION FOR EC TYPE-APPROVAL, GRANTING OF EC TYPE-APPROVAL, REQUIREMENTS AND TESTS, EXTENSION OF EC TYPE-APPROVAL, CONFORMITY OF PRODUCTION AND IN-SERVICE VEHICLES, ON-BOARD DIAGNOSTIC (OBD) SYSTEMS]
Textual Amendments
[F36. MODIFICATIONS OF THE TYPE AND AMENDMENTS TO APPROVALS U.K.
In the case of modifications of the type approved pursuant to this Directive, the provisions of Article 5 of Directive 70/156/EEC and, if applicable, the following special provisions shall apply:]
[F26.1. Tailpipe emission related extension (type I, type II and type VI tests)] U.K.
[F46.1.1. Vehicle types of different reference masses U.K.
[F36.1.1.1. Approval granted to a vehicle type may be extended only to vehicle types of a reference mass requiring the use of the next two higher equivalent inertia or any lower equivalent inertia.] U.K.
6.1.1.2. In the case of vehicles of category N 1 and vehicles of category M referred to in note 2 of Section 5.3.1.4, if the reference mass of the vehicle type for which extension of the approval is requested requires the use of a flywheel of equivalent inertia lower than that used for the vehicle type already approved, extension of the approval is granted if the masses of the pollutants obtained from the vehicle already approved are within the limits prescribed for the vehicle for which extension of the approval is requested] U.K.
Textual Amendments
6.1.2. Vehicle types with different overall gear ratios U.K.
Approval granted to a vehicle type may under the following conditions be extended to vehicle types which differ from the type approved only in respect of their transmission ratios:
[F26.1.2.1. Fore each of the transmission rations used in the type I and type VI tests,] it is necessary to determine the proportion, U.K.
where, at an engine speed of 1 000 rpm, V 1 is the speed of the vehicle-type approved and V 2 is the speed of the vehicle type for which extension of the approval is requested.
[F26.1.2.2. If, for each gear ratio, E ≤ 8 %, the extension is granted without repeating the type I and type VI tests. U.K.
6.1.2.3. If, for at least one gear ratio, E ≤ 8 %, and if, for each gear ratio, E ≤ 13 %, the type I and type VI tests must be repeated,] but may be performed in a laboratory chosen by the manufacturer [F3subject to the approval of the technical service.] The report of the tests must be sent to the technical service responsible for the type-approval tests. U.K.
6.1.3. Vehicle types of different reference masses and different overall transmission ratios U.K.
Approval granted to a vehicle type may be extended to vehicle types differing from the approved type only in respect of their reference mass and their overall transmission ratios, provided that all the conditions prescribed in 6.1.1 and 6.1.2 are fulfilled.
6.1.4. Note: U.K.
When a vehicle type has been approved in accordance with 6.1.1 to 6.1.3, such approval may not be extended to other vehicle types.
6.2. Evaporative emissions (type IV test) U.K.
6.2.1. Approval granted to a vehicle type equipped with a control system for evaporative emissions may be extended under the following conditions: U.K.
6.2.1.1. The basic principle of fuel/air metering (e.g. single point injection, carburettor) must be the same. U.K.
6.2.1.2. The shape of the fuel tank and the material of the fuel tank and liquid fuel hoses must be identical. The worst-case family with regard to the cross-section and approximate hose length must be tested. Whether non-identical vapour/liquid separators are acceptable is decided by the technical service responsible for the type-approval tests. The fuel tank volume must be within a range of ± 10 %. The setting of the tank relief valve must be identical. U.K.
6.2.1.3. The method of storage of the fuel vapour must be identical, i.e. trap form and volume, storage medium, air cleaner (if used for evaporative emission control), etc. U.K.
6.2.1.4. The carburettor bowl fuel volume must be within a 10 millilitre range. U.K.
6.2.1.5. The method of purging of the stored vapour must be identical (e.g. air flow, start point or purge volume over driving cycle). U.K.
6.2.1.6. The method of sealing and venting of the fuel metering system must be identical. U.K.
6.2.2. Further notes: U.K.
different engine sizes are allowed;
different engine powers are allowed;
automatic and manual gearboxes, two and four wheel transmissions are allowed;
different body styles are allowed;
different wheel and tyre sizes are allowed.
6.3. Durability of anti-pollution devices U.K.
(type V test)
6.3.1. Approval granted to a vehicle type may be extended to different vehicle types, provided that the engine/pollution control system combination is identical to that of the vehicle already approved. To this end, those vehicle types whose parameters described below are identical or remain within the limit values prescribed are considered to belong to the same engine/pollution control system combination. U.K.
6.3.1.1. Engine: U.K.
number of cylinders,
engine capacity (± 15 %),
configuration of the cylinder block,
number of valves,
fuel system,
type of cooling system,
combustion process [F3,]
[F5cylinder bore centre to centre dimensions.]
Textual Amendments
6.3.1.2. Pollution control system: U.K.
Catalytic converters:
number of catalytic converters and elements,
[F3size and shape of catalytic converters (volume of monolith ± 10 %),]
type of catalytic activity (oxidizing, three-way, …),
precious metal load (identical or higher),
precious metal ratio (± 15 %),
substrate (structure and material),
cell density,
type of casing for the catalytic converter(s),
location of catalytic converters (position and dimension in the exhaust system, that does not produce a temperature variation of more than 50 K at the inlet of the catalytic converter). [F5This temperature variation shall be checked under stabilized conditions at a speed of 120 km/h and the load setting of type I test.]
Air injection:
with or without
type (pulsair, air pumps, …).
EGR:
with or without.
[F36.3.1.3. Inertia category: the two inertia categories immediately above and any inertia category below.] U.K.
6.3.1.4. The durability test may be achieved by using a vehicle, the body style, gear box (automatic or manual) and size of the wheels or tyres of which are different from those of the vehicle type for which the type approval is sought.] U.K.
Textual Amendments