Council Directive 92/24/EEC of 31 March 1992 relating to speed limitation devices or similar speed limitation on- board systems of certain categories of motor vehicles
Modified by
Directive 2004/11/EC of the European Parliament and of the Councilof 11 February 2004amending Council Directive 92/24/EEC relating to speed limitation devices or similar speed limitation on-board systems of certain categories of motor vehicles, 32004L0011, February 14, 2004
Regulation (EC) No 661/2009 of the European Parliament and of the Councilof 13 July 2009concerning type-approval requirements for the general safety of motor vehicles, their trailers and systems, components and separate technical units intended therefor(Text with EEA relevance), 32009R0661, July 31, 2009
Council Directive 92/24/EECof 31 March 1992relating to speed limitation devices or similar speed limitation on-board systems of certain categories of motor vehiclesTHE COUNCIL OF THE EUROPEAN COMMUNITIES,Having regard to the Treaty establishing the European Economic Community, and in particular Article 100a thereof,Having regard to the proposal from the CommissionOJ No C 229, 4. 9. 1991, p. 5.,In cooperation with the European ParliamentOJ No C 13, 20. 1. 1992, p. 505; and OJ No C 67, 16.3.1992.,Having regard to the opinion of the Economic and Social CommitteeOJ No C 40, 17. 2. 1992, p. 54.,Whereas it is important to adopt measures with the aim of progressively establishing the internal market over a period expiring on 31 December 1992; whereas the internal market shall comprise an area without internal frontiers in which the free movement of goods, persons, services and capital is ensured;Whereas the technical requirements which motor vehicles must satisfy pursuant to national laws relate, inter alia, to speed limitation of certain categories of vehicle;Whereas these requirements differ from one Member State to another; whereas it is therefore necessary for all Member States to adopt the same requirements either in addition to, or in place of, their existing rules in order to allow, in particular, the EEC type-approval procedure which was the subject of Directive 70/156/EECCouncil Directive 70/156/EEC of 6 February 1970, on the approximation of the laws of the Member States relating to the type-approval of motor vehicles and their trailers (OJ No L 42, 23. 2. 1970, p. 1.), as last amended by Directive 87/403/EEC (OJ No L 220, 8. 8. 1987, p. 44). to be applied in respect of each type of vehicle;Whereas, with a view to improving road safety and reducing the severity of injuries in cases of accidents with heavy goods vehicles and buses, it is considered urgently necessary to fit speed limitation devices to these categories of motor vehicle;Whereas in respect of environment and economy a reduction of air pollution and fuel consumption can be achieved;Whereas, in all cases where the Council confers powers upon the Commission to implement rules laid down in the motor vehicle sector, it is appropriate to provide for a procedure of prior consultation between the Commission and the Member States within an Advisory Committee;Whereas it is reasonable and useful to undertake research activities relating to the development of variable speed limitation devices activated in conformity with the speed limits warranted by the prevailing road and traffic conditions within the framework of the Drive-programme,HAS ADOPTED THIS DIRECTIVE:
Article 1For the purpose of this Directive:"vehicle" shall mean any motor vehicle of categories M2, M3, N2 or N3, as defined in Annex II to Directive 70/156/EEC, intended for use on the road, having at least four wheels and a maximum design speed exceeding 25 km/h,"speed limitation device" shall mean a speed-limiting appliance intended for use on a vehicle within the scope of this Directive for which type-approval of a separate technical unit within the meaning of Directive 70/156/EEC may be granted. Built-in maximum vehicle speed limitation systems, incorporated into the design of vehicles from the outset, shall meet the same requirements as speed limitation devices.Article 2Member states may not refuse:EEC type-approval or national type-approval for a vehicle, or refuse or prohibit the sale, registration, entry into service or use of a vehicle on grounds relating to its equipment with speed limitation devices,EEC technical unit type-approval or national type-approval for a speed limitation device, or prohibit the sale or use of a speed limitation device,if the requirements of the Annexes to this Directive are satisfied.Article 3Any amendments necessary to adapt the requirements of the Annexes to this Directive to technical progress shall be adopted in accordance with the procedure laid down in Article 13 of Directive 70/156/EEC.Article 4Member States shall bring into force the laws, regulations and administrative provisions necessary to comply with this Directive not later than 1 January 1993. They shall forthwith inform the Commission thereof.When Member States adopt the provisions referred to in the preceding subparagraph, they shall contain a reference to this Directive or shall be accompanied by such reference at the time of their official publication. The methods of making such a reference shall be adopted by Member States.Article 5With effect from 1 January 1994, Member States:may no longer issue the document provided for in the third indent of Article 10 (1) of Directive 70/156/EEC in respect of a type of vehicle of which the speed limitation device does not meet the requirements of this Directive,may refuse to grant national type-approval in respect of a type of vehicle of which the speed limition device does not comply with the provisions of this Directive.With effet from 1 October 1994, Member States may prohibit the first entry into service of vehicles when such vehicles are not equipped with a speed limitation device complying with the provisions of this Directive.Article 6This Directive is addressed to the Member States.nullANNEX 11.SCOPE1.1.This Directive applies to speed limitation devices, EEC type-approved as separate technical units for motor vehicles, and the equipment of motor vehicles, as described in Article 1, with these approved devices or similar speed limitation systems meeting the requirements of the Annexes to this Directive.Motor vehicles, whose maximum design speed is lower than the set speed as provided for in Council Directive 92/6/EEC of 10 February 1992 on the installations and use of speed limitation devices for certain categories of motor vehicles in the CommunityOJ No L 57, 2. 3. 1992, p. 27. need not be fitted with speed limitation devices or systems.The purpose of this Directive is to limit to a specified value the maximum road speed of goods vehicles of categories N2 and N3 and of passenger-carrying vehicles of categories M2 and M3. This is achieved by a speed limitation device or an on-board speed limitation system whose primary function is to control the fuel feed to the engine.2.DEFINITIONS2.1.For the purpose of this Directive:2.2."Limitation speed V" means the maximum speed of the vehicle such that its design or equipment does not permit a response after a positive action on the accelerator control.2.3."Set speed (V set)" means the intended mean vehicle speed when operating in a stabilized condition.2.4."Stabilized speed (V stab)" means the vehicle speed when operating in the conditions as specified in point 1.1.4.2.3 of Annex III.2.5."Speed limitation device" means a device whose primary function is to control the fuel feed to the engine in order to limit the vehicle speed to the specified value.2.6."Unladen mass" means the mass of the vehicle in running order, including coolant, oils, fuel, tools and spare wheel on board, where applicable.2.7."Vehicle type" means vehicles which do not differ in such essential respects as:2.7.1.make and type of the speed limitation system or the speed limitation device, if any,2.7.2.range of speeds at which the limitation may be set within the range established for the tested vehicle,2.7.3.maximum engine power to unladen mass ratio less than or equal to that of the tested vehicle, and2.7.4.highest ratio of engine speed to vehicle speed in top gear less than that of the tested vehicle.2.8."Type speed limitation device" means speed limitation devices which do not differ with respect to the essential characteristics such as:make and type of the device,range of speed values at which the speed limitation device may be set,method used to control the fuel feed of the engine.3.APPLICATION FOR EEC VEHICLE TYPE-APPROVAL3.1.The application for approval of a vehicle type with regard to speed limitation shall be submitted by the vehicle manufacturer or by his duly accredited representative.3.2.It shall be accompanied by the undermentioned documents in triplicate and by the following particulars:3.2.1.a detailed description of the vehicle type and of vehicle parts related to the speed limitation, comprising the particulars and documents referred to in Annex II, Appendix I.3.2.2.A vehicle representative of the type to be approved shall be submitted to the technical service responsible for conducting the approval tests.3.2.3.A vehicle not comprising all the components proper to the type may be accepted for tests provided that it can be shown by the applicant to the satisfaction of the competent authority that the absence of the components omitted has no effect on the results of the verifications, so far as the requirements of this Directive are concerned.3.3.The competent authority shall verify the existence of satisfactory arrangements for ensuring effective checks on conformity of production before EEC type-approval is granted.4.EEC TYPE-APPROVAL4.1.If the vehicle submitted for approval pursuant to this Directive meets the requirements of point 7 below, approval of that vehicle type shall be granted.Notice of approval or of extension or of refusal of approval of a vehicle type pursuant to this Directive shall be communicated to the Member States by means of a form conforming to the model in Annex II, Appendix 2 to this Directive.4.2.An approval number shall be assigned to each type approved. The same Member State may not assign the same number to another vehicle type.5.APPLICATION FOR TECHNICAL UNIT EEC TYPE-APPROVAL OF A SPEED LIMITATION DEVICE5.1.The application for EEC type-approval of a speed limitation device as a technical unit must be submitted by the manufacturer of the speed limitation device or by his duly accredited representative.5.2.For each type of speed limitation device the application must be accompanied by:5.2.1.documentation in triplicate giving a description of the technical characteristics of the speed limitation device and the method of its installations on one or more types of vehicle for which the speed limitations device is intended to be installed;5.2.2.five samples of the type of speed limitation device; the samples must be clearly and indelibly marked with the applicant's trade name or mark and the type designation;5.2.3.a vehicle or an engine (in the case of testing on an engine bench) fitted with the speed limitation device to be type approved, chosen by the applicant in agreement with the technical service responsible for conducting approval tests.5.3.The competent authority shall verify the existence of satisfactory arrangements for ensuring effective control of the conformity of production of the speed limitation device before type-approval is granted.6.APPROVAL6.1.If the speed limitation device submitted for approval pursuant to this Directive meets the requirements of item 7 below, approval of that type of speed limitation device shall be granted.6.2.An approval number shall be assigned to each type of speed limitation device approved. Its first two digits (00 for the Directive in its original form) shall indicate the series of amendments incorporating the most recent major technical amendments made to the Directive at the time of issue of the approval. The same Member State may not assign the same number to another type of speed limitation device.6.3.Notice of approval, or of extension or of refusal of approval of a type of speed limitation device pursuant to this Directive shall be communicated to the Member States by means of a form conforming to the model in Annex II, Appendix 4 to this Directive.6.4.There shall be affixed, conspicuously and in a readily accessible place specified on the approval form, to every speed limitation device conforming to a type of speed limitation device approved under this Directive an international approval mark consisting of:6.4.1.a rectangle surrounding the letter "e" followed by the distinguishing number of the country which has granted approval; and6.4.2.the approval number, as given on the EEC type-approval certificate (see Annex II, Appendix 4), near to the rectangle of the approval mark.6.5.The approval mark shall be clearly legible and indelible.6.6.Annex II, Appendix 6 to this Directive gives an example of the arrangement of the approval mark.7.REQUIREMENTS7.1.General7.1.1.The speed limitation must be such that the vehicle in normal use, despite the vibrations to which it may be subjected, complies with the provisions of this Directive. The speed limitation device shall be so designed, constructed and assembled as to enable the vehicle in normal use, fitted with the speed limitation device, to comply with the provisions of this Directive.7.1.2.In particular, the speed limitation device of the vehicle must be so designed, constructed and assembled as to resist corrosion and ageing phenomena to which it may be exposed and to resist tampering.7.1.2.1.The limitation threshold must not, in any case, be capable of being increased or removed temporarily or permanently on vehicles in use. The inviolability shall be demonstrated to the technical service with documentation analysing the failure mode in which the system will be globally examined.The analysis shall show, taking into account the different states taken by the system, the consequences of a modification of the input or output states on the functioning, the possibilities of obtaining these modifications by failures or by tampering and the possibility of their occurence. The analysis level will be always to the first failure.7.1.2.2.The speed limitation function, the speed limitation device and the connections necessary for its operation, except those essential for the running of the vehicle, shall be capable of being protected from any unauthorized adjustments or the interruption of its energy supply by the attachment of sealing devices and/or the need to use special tools.7.1.3.The speed limitation function and the speed limitation device shall not actuate the vehicle's service braking system. A permanent brake (e.g. retarder) may be incorporated only if it operates after the speed limitation device has restricted the fuel feed to the minimum fuel position.7.1.4.The speed limitation function or the speed limitation device must be such that its does not affect the vehicle's road speed if a positive action on the accelerator is applied when the vehicle is running at its set speed.7.1.5.The speed limitation function or the speed limitation device may allow normal accelerator control for the purposes of gear changing.7.1.6.No malfunction or tampering shall result in an increase in engine power above that demanded by the position of the driver's accelerator.7.1.7.The speed limitation function shall be obtained regardless of the accelerator control used if there is more than one such control which may be reached from the driver's seating position.7.1.8.The speed limitation function or the speed limitation device shall operate satisfactorily in its electromagnetic environment without unacceptable electromagnetic disturbance for anything in this environment.7.1.9.All components necessary for the full function of the speed limitation or the speed limitation device shall be energized whenever the vehicle is being driven.7.2.Special requirements7.2.1.For the different categories of motor vehicles the limitation speed V shall be set in accordance with Directive 92/6/EEC.7.2.2.This speed limitation may be achieved either by the equipment of the motor vehicles with EEC type-approved speed limitation devices or similar systems on board of the vehicles fulfilling the same speed limitation function.7.2.3.The set speed shall be indicated on a plate in a conspicuous position in the driver compartment of each vehicle.8.TESTThe speed limitation tests to which the vehicle or the speed limitation device presented for EEC type-approval is submitted as well as the limitation performances required, are described in Annex III to this Directive.At the request of the manufacturer and with the agreement of the type-approval authority, vehicles whose calculated unlimited maximum speed does not exceed the set speed defined for those vehicles may be exempted from the testing of Annex III provided the requirements of this Directive are met.9.MODIFICATION OF THE TYPE OF THE VEHICLE OR THE SPEED LIMITATION DEVICE AND EXTENSION OF EEC TYPE-APPROVAL9.1.Every modification of the vehicle type or the type of the speed limitation device shall be notified to the administrative department which approved the vehicle type. The department may then either:9.1.1.consider that the modifications made are unlikely to have an appreciable adverse effect and that in any case the vehicle or the speed limitation device still complies with the requirements; or9.1.2.require a further test report from the technical service responsible for conducting the tests.9.2.Confirmation or refusal of approval, specifying the alteration, shall be communicated by the procedure specified in paragraph 4.1 above to the Member States.9.3.The competent authority issuing an extension of approval shall assign a series number to each communication form drawn up for such an extension.10.CONFORMITY OF PRODUCTION10.1.Every vehicle or speed limitation device approved under this Directive shall be so manufactured as to conform to the type approved by meeting the requirements set out in point 7 above.10.2.In order to verify that the requirements of item 10.1 are met, suitable checks of the production shall be carried out.10.3.The holder of the approval shall, in particular:10.3.1.ensure the existence of procedures for effective quality control of the vehicle or the speed limitation device;10.3.2.have access to the testing equipment necessary for checking conformity to each approved type;10.3.3.ensure that test result data are recorded and that the annexed documents remain available for a period to be determined in agreement with the administrative department;10.3.4.analyse the results of each type of test, in order to verify and ensure the consistency of characteristics of the vehicle or the speed limitation device, making allowance for permissible variations in industrial production;10.3.5.ensure that for each type of vehicle or speed limitation device sufficient checks and tests are carried out in accordance with the procedures approved with the competent authority;10.3.6.ensure that any set of samples or test pieces giving evidence of non-conformity in the type of test in question shall give rise to a further sampling and test. All necessary steps shall be taken to restore conformity of the corresponding production.10.4.The competent authority which has granted type-approval may at any time verify the conformity control methods applied in each production unit.10.4.1.At every inspection, the test records and production records shall be presented to the visiting inspector.10.4.2.The inspector may select samples at random to be tested in the manufacturer's laboratory. The minimum number of samples may be determined according to the results of the manufacturer's own checks.10.4.3.Where the quality level appears unsatisfactory or it seems necessary to verify the validity of the tests carried out in application of item 10.4.2, the inspector shall select samples to be sent to the technical service which conducted the type-approval tests.10.4.4.The competent authority may carry out any test prescribed in this Directive. The normal frequency of inspections authorized by the competent authority shall be one every two years. In cases where unsatisfactory results are found during one of these inspections, the competent authority shall ensure that all necessary steps are taken to restore conformity of production as rapidly as possible.11.PENALTIES FOR NON-CONFORMITY OF PRODUCTION11.1.The approval granted in respect of a vehicle type or type of a speed limitation device pursuant to this Directive may be withdrawn if the requirements laid down in item 7 above are not complied with.11.2.If a Member State withdraws an EEC type-approval it has previously granted, it shall forthwith so notify the other Member States, by means of a copy of the EEC type-approval certificate according to the model set out in Annex II, Appendix 2 or 4.ANNEX IIThe above technical unit type-approval mark, affixed to a speed limitation device, shows that the technical unit concerned was approved in France (e2) pursuant to this Directive under the type-approval number 001241. The first two digits indicate that the speed limitation device was approved according to the original form of this Directive.ANNEX IIITESTS AND PERFORMANCES1.TESTS OF SPEED LIMITATION DEVICEAt the request of the applicant for approval tests shall be made in accordance with either points 1.1, 1.2 or 1.3 below.1.1.Measurement on test track1.1.1.Preparation of the vehicle1.1.1.1.A vehicle representative of the vehicle type to be approved or a device representative of the speed limitation device type as appropriate shall be submitted to the technical service.1.1.1.2.The settings of the engine of the test vehicle, particularly the fuel feed (carburetter or injection system) shall conform to the specifications of the vehicle manufacturer.1.1.1.3.The tyres shall be bedded and the pressure shall be as specified by the manufacturer of the vehicle.1.1.1.4.The vehicle mass shall be the unladen mass as declared by the manufacturer.1.1.2.Characteristics of the test track1.1.2.1.The test surface shall be suitable to enable stabilized speed to be maintained and shall be free from uneven patches. Gradients shall not exceed 2 % and shall not vary by more than 1 % excluding camber effects.1.1.2.2.The test surface shall be free from standing water, snow or ice.1.1.3.Ambient weather conditions1.1.3.1.The mean wind speed measured at a height at least 1 m above the ground shall be less than 6 m/s with gusts not exceeding 10 m/s.1.1.4.Acceleration test method1.1.4.1.The vehicle running at a speed which is 10 km/h below the set speed shall be accelerated as much as possible using a fully positive action on the accelerator control.This action shall be maintained at least 30 seconds after the vehicle speed has been stabilized. The instantaneous vehicle speed shall be recorded during the test in order to establish the curve of the speed versus the time and during-the operation of the speed limitation function or of the speed limitation device as appropriate. The accuracy of the speed measurement shall be ± 1 %. The accuracy of the time measurement shall be within 0,1 s.1.1.4.2.Acceptance criteria for the acceleration testThe test shall be satisfactory if the following conditions are met:1.1.4.2.1.The stabilized speed Vstab reached by the vehicle shall be equal or less than the set speed Vset. However a tolerance of 5 % of the Vset value or 5 km/h whichever is the greater is acceptable.1.1.4.2.2.Transient response (see figure 2 of appendix)After the stabilized speed is reached for the first time:(a)the maximum speed shall not exceed the stabilized speed Vstab by more than 5 %;(b)the rate of change of speed shall not exceed 0,5 m/s2 when measured on a period greater than 0,1 s; and(c)the stabilized speed conditions specified in 1.1.4.2.3. shall be attained within 10 s of first reaching of the stabilized speed Vstab.1.1.4.2.3.Stabilized speed (see figure 2 of appendix)When stable speed control has been achieved:(a)speed shall not vary by more than 4 % of the stablized speed Vstab or 2 km/h whichever is the greater;(b)the rate of change of speed shall not exceed 0,2 m/s2 when measured on a period greater than 0,1 s.(c)the stabilized speed (Vstab) is the average speed calculated during a minimum period of 20 seconds beginning 10 seconds after the stabilized speed is achieved.1.1.4.2.4.Tests in acceleration shall be carried out and the acceptance criteria verified for each reduction ratio of gear allowing the speed limit to be exceeded.1.1.5.Test method at steady speed1.1.5.1.The vehicle shall be driven at full acceleration up to the steady speed, then shall be maintained at this speed without any modification on the test basis of at least 400 metres. The vehicle's average speed measurement shall then be repeated on the same test basis, but run in the opposite direction, and under the same procedures.The stabilization speed for the whole test previously considered is the mean of the two average speeds measured on going trips and on coming back trips of the test basis. The whole test including the calculation of the stabilization speed shall be carried out five times. The speed of measurement shall be carried out with an accuracy of ± 1 %, the time measurements with an accuracy of 0,1 s.1.1.5.2.Acceptance criteria for steady speed testTests are judged satisfactory if the following conditions are fulfilled:1.1.5.2.1.None of the stabilization speeds Vstab obtained shall exceed set speed Vset. However, a tolerance of 5 % of the Vset value or 5 km/h whichever is the greater is acceptable.1.1.5.2.2.The gap between the extreme stabilization speeds obtained during the tests shall not exceed 3 km/h.1.1.5.2.3.Tests in steady speed shall be carried out and the acceptance criteria verified for each reduction gear ratio allowing in theory the speed limit to be exceeded.1.2.Tests on chassis dynamometer1.2.1.Characteristics of the chassis dynamometerThe equivalent inertia of the vehicle mass shall be reproduced on the chassis dynamometer with an accuracy of ± 10 %. The speed of the vehicle shall be measured with an accurancy of ± 1 %. The time shall be measured with an accuracy of 0,1 s.1.2.2.Acceleration test method1.2.2.1.The power absorbed by the brake of the chassis dynamometer during the test shall be set to correspond with the vehicle's resistance to progressive movement at the tested speed(s). This power may be established by calculation and shall be set to an accuracy of ± 10 %. At the request of the applicant, and with the agreement of the competent authority the power absorbed may alternatively be set at 0,4 Pmax (Pmax ist the maximum power of the engine). The vehicle running at a speed which is 10 km/h below its set speed shall be accelerated at the maximum possibilities of the engine by using a fully positive action on the acceleration control. This action shall be maintained at least 20 seconds after the vehicle speed-has been stablized. The instantaneous vehicle speed shall be recorded during the test in order to establish the curve of the speed versus the time and during the operation of the speed limitation device.1.2.2.2.Acceptance criteria for the acceleration testThe test shall be satisfactory if the following conditions are met:1.2.2.2.1.The stabilized speed Vstab reached by the vehicle shall be equal or less than the set speed Vset. However a tolerance of 5 % of the Vset value or 5 km/h whichever is the greater is acceptable.1.2.2.2.2.Transient response (see figure 2 of appendix)After the stabilized speed is first achieved:(a)the maximum speed shall not exceed the stabilized speed Vstab by more than 5 %;(b)the rate of change of speed shall not exceed 0,5 m/s2 when measured on a period greater than 0,1 s; and(c)the stabilized speed conditions specified in point 1.2.2.2.3 shall be attained within 10 s of first reaching of the stabilized speed Vstab.1.2.2.2.3.Stabilized speed (see figure 2 of appendix)When stable speed control has been achieved:(a)speed shall not vary by more than 4 % of the stabilized speed Vstab or 2 km/h whichever is the greater;(b)the rate of change of speed shall not exceed 0,2 m/s2 when measured on a period greater than 0,1 s.1.2.2.2.4.Tests in acceleration shall be carried out and the acceptance criteria verified for each reduction ratio of gear acceleration allowing in theory the speed limit to be exceeded.1.2.3.Test method for steady speed test1.2.3.1.The vehicle shall be installed on the chassis dynamometer. The following acceptance criteria should be met for power absorbed by the chassis dynamometer varying progressively from the maximum power Pmax to a value equal to 0,2 Pmax. The speed of the vehicle shall be recorded in the full range of power defined above. The maximum speed of the vehicle shall be determined on this range. Test and record defined above shall be made five times.1.2.3.2.Acceptance criteria for steady speed testTests are judged satisfactory if the following conditions are fulfilled:1.2.3.2.1.Non of the stabilization speeds Vstab obtained shall exceed the set speed Vset. However, a tolerance of 5 % of the Vset value or 5 km/h, whichever is the greater, is acceptable.1.2.3.2.2.The gap between the extreme stabilization speed obtained during the test shall not exceed 3 km/h.1.2.3.2.3.Tests in steady speeds shall be carried out and the acceptance criteria verified for each reduction gear ratio allowing in theory the speed limit to be exceeded.1.3.Test on engine test benchThis test procedure can only be used when the applicant can demonstrate to the satisfaction of the technical services that this method is equivalent to the measurement on a test track.2.ENDURANCE TESTThe speed limitation device shall be submitted to a durability test following the procedure prescribed below. However, this may be omitted if the applicant demonstrates the resistance to aging effects.2.1.The device is cycled on a bench simulating the attitude and the movement which the speed limitation device would experience on the vehicle.2.2.A functioning cycle is maintained by means of a control system supplied by the manufacturer. The diagram of the cycle is given below:t0 — t1 — t2 — t3 — t4 — t5 — t6 — t7: the time taken to do this operationt1 - t2 = 2 secondst3 - t4 = 1 secondt5 - t6 = 2 secondst7 - t8 = 1 secondFive conditionings are defined hereafter. The speed limitation device (SLD) samples of the type presented for approval shall be submitted to the conditionings according to the table below:
1st SLD
2nd SLD
3rd SLD
4th SLD
Conditioning 1
x
Conditioning 2
x
Conditioning 3
x
Conditioning 4
x
Conditioning 5
x
2.2.1.Conditioning 1: tests at ambient temperature (293 K ± 2 K); number of cycles: 50000.2.2.2.Conditioning 2: tests at high temperatures.2.2.2.1.Electronic componentsThe components shall be cycled in a climatic chamber. A temperature of 338 K ± 5 K is maintained during the whole functioning. Number of cycles: 12500.2.2.2.2.Mechanical componentsThe components shall be cycled in a climatic chamber. A temperature of 373 K ± 5 K is maintained during the whole functioning. Number of cycles: 12500.2.2.3.Conditioning 3: tests at low temperature.In the climatic chamber used for conditioning 2, a temperature of 253 K ± 5 K is maintained during the whole functioning. Number of cycles: 12500.2.2.4.Conditioning 4: test in a salted atmosphere. Only for components exposed to the ambient road environment.The device shall be cycled in a salted atmosphere chamber. The concentration of sodium chloride is of 5 % and internal temperature of the climatic chamber is 308 K ± 2 K. Number of cycles: 12500.2.2.5.Conditioning 5: vibration test2.2.5.1.The speed limitation device is mounted in a similar way to its mounting on the vehicle.2.2.5.2.Sinusoldal vibrations shall be applied in all three planes; logarithmic sweep shall be 1 octave per minute.2.2.5.2.1.First test: frequency range 10-24 Hz, amplitude ± 2 mm.2.2.5.2.2.Second test: frequency range 24-1000 Hz for chassis and cab mounted technical units, input 2,5 g. For engine mounted technical units, input 5 g.2.3.Acceptance criteria of the endurance tests2.3.1.At the end of the endurance tests, no modification of the device's performances shall be observed regarding the set speed.2.3.2.However, if any breaking down of the device occurs during one of the endurance tests, a second device can be submitted to the endurance tests under consideration at the manufacturer's request.