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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This test is conducted on road test surfaces on which wheel lockup occurs at braking rates between 0,15 and 0,8.
In verifying compliance with the requirements of paragraphs 1. In the case of vehicles equipped with category 3 anti-lock systems, only the axle s with at least one directly controlled wheel shall satisfy this requirement. All values of the “maF curve” that are above 90 per cent of this deceleration value “amax” are averaged.
This requirement shall apply for r13b conditions of loading when compensation exceeds the following limits:. Disconnection of the braking surfaces of the parking braking system shall be permitted only on condition that the disconnection is controlled exclusively by the driver from his driving seat, by a system incapable of being brought into action by a leak. In the event of a failure of the energy source of the electric control transmission, starting from the nominal value of the energy level, the full control range of the service braking system shall be guaranteed after twenty consecutive full stroke actuations of the service braking control.
Any separate electric regenerative braking control which is provided, shall not be used during the Type-0 tests. An individual compensating value on any axle: The steering amplitude for the initial run rce each series is 1,5 A, where A is the steering wheel angle determined in paragraph 5. The transmission may be mechanical, hydraulic, pneumatic, electric or mixed. The verification results shall correspond with the documented summary of the failure analysis, to a level of overall effect such that the safety concept and execution are confirmed as being adequate.
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Provisions for the periodic technical inspection of braking systems 5. The same tell-tale signal may be used. 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. 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. Determine the front versus rear brake pressure relationship over the entire range of line pressures.
Type-0 test with engine disconnected, service braking in accordance with paragraph 2. Contracting Parties applying this Regulation shall not refuse to grant extensions of Type Approvals for existing types, regardless of whether they are fitted with a Vehicle Stability Function or ESC and BAS or not, on the basis of the provisions valid at the time of the original approval.
ECE regulations: ECE R13H Supplement 15
The vehicle is allowed to cool-down between each test runs for a period of 1,5 to 5 minutes, with the vehicle stationary. Wce 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.
If such systems are provided, they shall not be deactivated during type approval testing of the braking system.
Dynamic stability simulation tool and its validation. With the vehicle laden, repeat the five stops at each test speed while alternating between the two test r13n. Non-specified faults or other information shall be indicated only by the flashing of the warning signal. 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.
The use of the stop-lamp switch and circuit for actuating the electrical braking system is permissible only if the actuating line is connected in parallel with the stop-lamp and the existing stop-lamp switch and circuit are capable of taking the extra load. These two surfaces shall satisfy the conditions prescribed in paragraph 5. There shall t13h 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 ec consisting of: In the case of a vehicle which satisfies the 60 per cent requirement specified in paragraph 1.
Where actuation of the parking brake is normally indicated by a separate ec warning signal, satisfying all the requirements of paragraph 5. Characteristics of braking systems 5. The prescribed braking rate referred to in paragraph 5.
Only torque output values obtained from data collected when the vehicle deceleration is within the range of 0,15 g to 0,80 g are used in the regression analysis. The application for approval of a vehicle type with regard to braking d13h be submitted by the vehicle manufacturer or by his duly accredited representative.
When the anti-lock braking system is energised with the vehicle stationary, electrically controlled pneumatic modulator valve ecs shall cycle at least once. Need more search options? Use the Advanced search.
ECE Regulation 90 – Wikipedia
This allows complex systems to automatically change their objectives with a priority which depends on the sensed circumstances. During the type-approval testing of a vehicle, the technical service shall verify conformity with the requirements contained in the present annex, by carrying out the following tests:.
In an emergency manoeuvre, the time elapsing between the moment when the control device begins to be actuated and the moment when the braking force on the least favourable placed axle reaches the level corresponding to the prescribed performance shall not exceed 0,6 seconds.
A control for another system that has the ancillary effect of placing the ESC system in a mode in which it no longer satisfies the performance requirements of paragraphs 3, 3.
ECE Regulation 90
However, in the case of vehicles which are only considered to comply with the requirements of paragraph 5. Date of entry into force: Phase shifts are especially significant when measured variables are multiplied together to form new variables, because while amplitudes multiply, phase shifts and associated time delays add.
Torque wheel test procedure. In the tests provided in paragraphs 1. The yellow warning signal specified in paragraph 5.