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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The service brakes of all vehicles shall be tested by successively applying and releasing the brakes a number of times, the vehicle being laden, in the conditions shown in the table below:.
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The measurement shall be within the corridor for variation of increase in deceleration see Figure 3. Auxiliary equipment may be supplied with energy from the electric transmission of the parking braking system provided that the supply of energy r13g sufficient to allow the actuation of the parking r31h system in addition to the vehicle electrical load under non-fault conditions.
The method by which wear of the friction surfaces of drums and discs may be assessed, including the level of disassembly required and the tools and process required to achieve this. The following additional checks shall be carried out with the engine disconnected, with the vehicle laden and unladen:. In the event of a failure in d13h energy source, whilst the vehicle is in motion, the energy in the reservoir shall be sufficient to actuate the brakes when the control is applied; 5.
The order of the filters used and their pass band shall be chosen according to both the required flatness in the relevant frequency range and the sampling rate. There shall be affixed, conspicuously and in a readily accessible place specified on the approval form, to every vehicle conforming to a vehicle type approved under this Regulation, an international approval mark consisting of: Manufacturers may also provide controls for other systems that have an ancillary effect upon ESC operation.
At 30 Hz the signal amplitude changes by up to 18 per cent per millisecond.
The maximum time permitted between each test run is five minutes. The approval granted in respect of a vehicle type pursuant to this Regulation may be withdrawn if the requirements laid down in paragraph 8. The action of the service braking system shall be distributed between the wheels of one and the same axle symmetrically in relation to the longitudinal median plane of the vehicle.
A difference in transverse braking pressures on any axle: The driver can at any moment increase or decrease the braking force by acting on the control. When the engine is running under normal operating conditions and there are no faults in the braking system, as is the case in type approval tests, the warning device shall give no signal except during the time required for rce the energy reservoir s after start-up of the engine.
The value for time at the zero degree steering wheel angle is interpolated. When the requirements of this annex are fulfilled by fce of a special device e.
There shall be a clear correspondence between these transmission links and the signals carried between units. This value of “a” is the deceleration “aABS” referred to in this annex.
Post data processing — calculations for performance metrics.
ECE regulations: ECE R13H Supplement 15
Languages, formats and link to OJ. Five tests meeting the requirements of paragraph 1. Considerations for additional phaseless digital filtering include selection of pass bands and stop bands and the attenuation and allowable ripple in each; and correction of filter phase lags.
On such vehicles, any individual axle which does not include at least one directly controlled wheel shall fulfil the conditions r1h adhesion utilisation and the wheel-locking sequence of Annex 5 to this Regulation, instead of the adhesion utilisation requirements prescribed in paragraph 5. Surfaces with irregularities and undulations, such as dips and large cracks, are unsuitable.
During analogue filtering of signals with different frequency contents, phase shifts can occur. Each unit shall be clearly and unambiguously identifiable e. For category C systems, define the input variables affecting the decision to activate the Brake Assist System, the relationship between them and the pedal t13h required to activate the Brake Assist System for the tests described in Part B of Annex 9.
Total normal static reaction of road surface on the unbraked and driven axles of the power-driven vehicle. Anti-aliasing filters shall be of order 4 or higher and the relevant data range fmax shall be 0 Hz to 30 Hz.
It shall be possible to easily assess this wear on service brake linings from the outside or underside of the vehicle, without the removal of the wheels, by the provision of appropriate inspection holes or r13n some other means.
Disc brake type e. As an alternative to the requirement of paragraph 5. The width of the pass band from 0 Hz to frequency fo at -3 dB shall not be less than 30 Hz.
The energy storage device s for pneumatic auxiliary equipment shall be isolated.
The use of the simulator is defined in Appendix 1 to this annex. If the chosen provision selects the removal of the higher level function, all the corresponding output control signals associated with this function shall be inhibited, and in ecf a manner as to limit the transition disturbance.
Alternative brake linings tested in Annex 7 … 2. A sampling rate for data acquisition of at least Hz is required.
This information shall be made freely available, e. The tell-tale bulb check is not required for a tell-tale shown in a common space as specified in paragraphs 3.
ECE Regulation 90
The parking braking system shall be so designed that it can be actuated when the vehicle is in motion. Cooling air may be used, flowing over the brake in a direction perpendicular to its axis of rotation. The Completion of Steer COS is defined as the time the steering wheel angle returns to zero at the completion of the Sine with Dwell steering manoeuvre.
On vehicles to which the coupling of a trailer is authorised, the parking braking system of the motor vehicle shall be capable 1r3h holding the combination of vehicles stationary on a 12 per cent up or down gradient.
ECE R13H 第1版 第4次修订_百度文库
The operation of ecd electric braking shall not be adversely affected by magnetic or electric fields. With the engine stationary and commencing at a pressure that may be specified by the manufacturer but does not exceed the cut-in pressure, the warning device shall not operate following two full-stroke actuations of the service brake control. At the start of the tests, the tyres shall be cold and at the pressure prescribed for the load actually borne by the wheels when the vehicle is stationary.
The values of FT and aT shall be supplied to the Technical Service at the time of submission of the type-approval application. General conditions for ecf cars or Part 2: For r13j approval of any vehicle, the braking performance shall be measured during road tests conducted in the following conditions:.