and share experiences on ECE Regulation implementation with a continuing support from many Meeting on UN/ECE R13H, Braking for Passenger Vehicles . Regulation No H of the Economic Commission for Europe of the United Nations (UN/ECE) — Uniform provisions concerning the approval of passenger cars. ECE Regulation 90 (abbreviated “ECE R90”) is an ECE Regulation specifying design, construction, and performance requirements and test protocols for.

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Vehicles which are not equipped with an anti-lock system as defined in Annex 6 to this Regulation shall meet all the requirements of this annex. The power supply generator and battery of the motor vehicle shall have a sufficient capacity to provide the current for an electric braking system.

Eece the tyres using the procedure of paragraphs 5.

EUR-Lex – X(01) – EN – EUR-Lex

Alternatively, for vehicles r3h battery powered electric traction only, the state of charge may be adjusted by running the vehicle.

This requirement does not apply for the driver-selected mode referred to in paragraph 3. Vehicles using other types of steering control may also be approved to this annex provided the manufacturer is able to demonstrate to the Technical Service that the performance requirements of this annex wce be met using equivalent steering inputs to the steering inputs stipulated under paragraph 5 of this part.

The measurement shall be within the corridor for variation of increase in deceleration see Figure 3.

The parking braking system shall be so designed that it can be actuated when the vehicle is in motion. Information defining the maximum acceptable wear limit at the point at which replacement becomes necessary.

When the tests are conducted without a regenerative braking component regardless of the state of charge of the batteries. In addition to the requirements of this annex, Brake Assist Systems shall also be subject to any relevant requirements contained elsewhere within this Regulation. In this alternative, the parking brake shall be automatically released as soon as the driver starts to set the vehicle in motion again.

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For vehicles fitted with an electric regenerative braking system of category A, during brake applications, the highest gear shall be continuously engaged and the separate electric braking control, if any, not used.

Condition the vehicle brakes in the manner described in paragraphs 5.

ECE Regulation 90

During the test to determine the time t, energy storage device s for auxiliary equipment shall not be isolated other than automatically. In the case ecr vehicles equipped with electric regenerative braking systems of category B, the braking input from other sources of braking, may be suitably phased to allow the electric regenerative braking system alone to be applied, provided that both the following conditions are met: Brake lining equivalence shall be based on a comparison of the results achieved using the test procedures prescribed in this annex and in accordance with the following requirements.

Compliance with this requirement is demonstrated if the provisions of paragraphs 3. Checking the wear of the service brake friction components.

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To eliminate the effects of differential brake temperatures it is recommended that z AL be determined prior to the determination of k. For vehicles powered completely or partially by an electric motor or motorspermanently connected to the wheels, all tests shall be carried out with these motor s connected.

Starting from the minimum measured value of t, called t minthen select three values of t comprised within t min and 1,05 t min and calculate their arithmetical mean value t mthen calculate:.

In braking tests, and in particular in those at high speed, the general behaviour of the vehicle during braking shall be checked. The stopping distance shall be the distance covered by the vehicle from the moment when the driver begins to actuate the control of the braking system until the moment when the vehicle stops; the initial speed shall be the speed at the moment when the driver begins to actuate the control of the braking system; the initial speed shall not be less than 98 per cent of the prescribed speed for the test in question.


The service braking system shall act on all wheels of the vehicle and shall distribute its action appropriately among the axles. This paragraph does not apply to vehicles where the prescribed deceleration values can be reached without the use of electrical energy.

Setting of pressure valve: Limits defining the 1r3h of functional operation paragraph 2.

Ede the vehicle conforms to a vehicle type approved under one or more other Regulations, annexed to the Agreement, in the country which has granted approval under this Regulation, the symbol prescribed in paragraph 4. This shall be measured as fce brake pedal force is increasing. The minimum performance prescribed shall be attained. Nevertheless, in all cases, the permanently connected friction braking source shall ensure that both the service and secondary braking systems continue to operate with the prescribed degree of effectiveness.

ECE regulations: ECE R13H Supplement 15

Where use is made of energy other than the muscular energy of the driver, there need not be more than one source of such energy hydraulic pump, air compressor, etc.

This requirement is not applicable if the vehicle is equipped with an anti-lock device which controls the wheels connected to the electric braking then the requirements of Annex 6 to this Regulation shall apply. The variables listed in paragraph 2.

Motor vehicles shall be capable of providing optical brake failure and defect warning signals, as follows:. For a Butterworth filter the attenuation is given by: In the case of a vehicle equipped with an electric regenerative braking system, the requirements depend on the category of this system:.

At the end of the Type-I test described in paragraph 1.

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