Tests and requirements. 2.1. Conformance with Regulation No. 13, Annex 11 The brakes shall be tested according to the requirements of Regulation Xx. 00, Xxxxx 00, Xxxxxxxx 0, xxxxxxxxx 3.5.
2.1.1. The results shall be reported in a form according to Regulation No. 13, Annex 11, Appendix 3.
2.1.2. A comparison shall be made between these results and those obtained with the original brake lining assemblies or the original drum brake linings under the same conditions.
Tests and requirements. 3.1. Type-0 test From the initial speed of 60 km/h with a brake temperature ≤ 100°C at the start of each application make a minimum of six consecutive brake applications at spaced intervals of line pressure or application force up to the maximum line pressure or up to 6 m/s2 deceleration. Repeat the last brake application using an initial speed of 40 km/h.
Tests and requirements. 1.2.1. Conformance with Regulation No. 13
Tests and requirements. 1.2.1. Conformance with Regulation No. 13
1.2.1.1. The braking system of the vehicle shall be tested according to the requirements for the vehicle category in question (M3, N2 or N3) in Regulation No. 13, Annex 4, paragraphs 1. and 2. The applicable requirements or tests are:
1.2.1.1.1. Service braking system
1.2.1.1.1.1. Type-0 test with engine disconnected, vehicle laden
Tests and requirements. 2.1. Conformance with Regulation No. 78
2.1.1. The braking system of the vehicle shall be tested according to the requirements for the vehicle category in question (L1, L2, L3, L4 or L5) in Regulation No. 78, Annex 3, paragraph 1. The applicable requirements or tests are:
2.1.1.1. Type-0 test with engine disconnected The test is to be carried out only in the laden condition. Make a minimum of six brake applications at spaced increments of control force or line pressure up to wheel lock, or up to a deceleration of 6 m/s2 or up to the maximum allowed control force.
2.1.1.2. Type-0 test with engine connected Only applicable for vehicles of categories L3, L4 and L5. Annex 7
2.1.1.3. Type-0 test with wet brakes Not applicable to vehicles of category L5 or in cases of drum brakes or fully enclosed disc brakes not subjected to this test during approval to Regulation No. 78.
2.1.1.4. Type-I test Only applicable for vehicles of categories L3, L4 and L5.
2.1.2. The vehicle must satisfy all the relevant requirements stated in Regulation No. 78, Annex 3, paragraph 2 for that category of vehicles.
2.2. Additional requirements
2.2.1. Cold performance equivalence test
2.2.1.1. The Type-0 test as prescribed in paragraph 2.
1.1.1. shall be performed with one set of the original brake lining assembly.
2.2.1.2. The replacement brake lining assembly shall be considered to show similar performance characteristics to the original brake lining assembly if the achieved mean fully developed decelerations at the same line pressure in the upper two thirds of the generated curve are within 15 per cent of those obtained with the original brake lining assembly.
2.2.2. Speed sensitivity test This test is only applicable for vehicles of categories L3, L4 and L5 and shall be carried out with the laden vehicle under the conditions of the Type-0 test with engine disconnected. However, the test speeds are different.
2.2.2.1. From the results of the Type-0 test as described in paragraph 2.
1.1.1. determine the control force or line pressure corresponding to the minimum required mean fully developed deceleration for that category of vehicle.
2.2.2.2. Using the control force or line pressure determined in paragraph 2.
2.2.1. and with initial brake temperature ≤ 100°C, make three brake applications from each of the following speeds: 00 xx/x, 00 xx/x xxx 000 xx/x (xx vmax ≥ 130 km/h)
2.2.2.3. Average the results for each group of three applications and plot speed against corresponding mean fully ...
Tests and requirements. An engine representative of the desired extension of the application range shall be tested in accordance with the provisions set out in paragraph 5.2.2. or 10.1.1. at the choice of the dual-fuel engine retrofit system manufacturer. Engine tests in accordance with paragraph 5.2.2. are always required for the extension of an application range with an engine family equipped with EGR. The tests in accordance with paragraph 10.1.1. shall be carried out on a representative engine equipped with a member of the dual-fuel engine retrofit system family. The same tests shall be performed in diesel mode and in dual-fuel mode in such a way that the operating points and conditions are as similar as possible. The NOX, Non-Methane Hydrocarbons (NMHC), CO and PM emission test results in dual-fuel mode shall be lower than or equal to the results in diesel mode.
10.1.1. On-road vehicle testing using PEMS
Tests and requirements. 2.1. Conformance with UN Regulation No. 78
2.1.1. The braking system of the vehicle shall be tested according to the requirements for the vehicle category in question (L1, L2, L3, L4, L5, L6, L7) in UN Regulation No. 78, Annex 3, paragraph 1. The applicable requirements or tests are:
2.1.1.1. Dry stop test - single brake control actuated The test is to be carried out only in the laden condition. Make one brake application according to Annex 3, paragraphs 3.1. and 3.2., in UN Regulation No. 78 up to wheel lock, or up to the deceleration under performance requirements defined in Annex 3, paragraph 3.3. of UN Regulation No. 78 or up to the maximum allowed control force. Where brake lining assembly approval is required for front axle brakes the test is to be carried out on the front brakes only. Where brake lining assembly approval is required for rear axle brakes the test is to be carried out on the rear brakes only.
2.1.1.2. Dry stop test – all service brake controls actuated Test is to be carried out under Annex 3, paragraph 4., UN Regulation No. 78 requirements.
2.1.1.3. High speed test Only applicable for vehicles of categories L3, L4, L5 and L7. Test is to be carried out under Annex 3, paragraph 5., UN Regulation No. 78 requirements.
2.1.1.4. Wet brake test The test shall be carried out according to the requirements in Annex 3, paragraph 6. of UN Regulation No. 78.
2.1.1.5. Heat fade test The test shall be carried out according to the requirements in Annex 3, paragraph 7. of UN Regulation No. 78.
2.1.2. The vehicle must satisfy all the relevant requirements stated in UN Regulation No. 78, Annex 3, paragraph 2. for that category of vehicles.
2.2. Additional requirements
2.2.1. Cold performance equivalence test A comparison of the cold performance of the replacement brake lining assembly and the original brake lining assembly shall be made by comparing the test results.
2.2.1.1. Make a minimum of six brake applications at spaced increments of pedal effort or line pressure up to wheel lock or, alternatively, up to a mean fully developed deceleration according to the minimum requirements in Annex 3, paragraph 3.3., UN Regulation No. 78 or up to the allowed maximum pedal force for the category of vehicle in question from an initial speed as given in Annex 3, paragraph 3.2., UN Regulation No. 78.
2.2.1.2. Note and plot pedal force or line pressure and mean fully developed deceleration for each application.
2.2.1.3. The replacement brake lining assembly shall b...
Tests and requirements. 2.2.1. Tests derived from Regulation No. 13
2.2.1.1. Type-0 test From the initial speed of 60 km/h with a brake temperature 100°C at the start of each application make a minimum of six brake applications at spaced intervals of line pressure up to the line pressure that is permanently guaranteed by the braking system of the vehicle type(s) (e.g. cut in pressure of the compressor). A mean fully developed deceleration of at least 5 m/s2 must be achieved.
Tests and requirements. An engine representative of the desired extension of the application range shall be tested in accordance with the provisions set out in paragraph 5.2.2. or 10.1.1. at the choice of the dual-fuel engine retrofit system manufacturer. Engine tests in accordance with paragraph 5.2.2. are always required for the extension of an application range with an engine family equipped with EGR. The tests in accordance with paragraph 10.1.1. shall be carried out on a representative engine equipped with a member of the dual-fuel engine retrofit system family. The same tests shall be performed in diesel mode and in dual-fuel mode in such a way that the operating points and conditions are as similar as possible. The NOX, Non-Methane Hydrocarbons (NMHC), CO and PM emission test results in dual-fuel mode shall be lower than or equal to the results in diesel mode. Alternatively, at the request of the engine retrofit system manufacturer, the following provisions apply:
(a) As for Non-Methane Hydrocarbons (NMHC) and CO emissions only, the CO2 specific emission results of the test in accordance with paragraph 10.
1.1.1. in dual-fuel mode shall not exceed the applicable UN Regulation No. 49 original emission limits transposed into CO2 specific emission limits with the following equation: CO2 specific emission limit = 1.6 × 1.5 × brake specific emission limit Where: CO2 specific emission limit is the equivalent limit expressed in [g/kgCO2]
Tests and requirements. 2.1. Conformance with Regulation No. 13, Annex 11 The brakes shall be tested according to the requirements of Regulation No. 13, Annex 11, Appendix 2, paragraph 3.5.
2.1.1. The results shall be reported in a form according to Regulation No. 13, Annex 11, Appendix 3.
2.1.2. A comparison shall be made between these results and those obtained with the original brake lining assemblies or the original drum brake linings under the same conditions.
2.1.3. The achieved hot performance at the same input torque of the replacement brake lining assembly or the replacement drum brake lining in the Type-I test or in the Type-III test (whichever is applicable) must be:
(a) Equal to or higher than the hot performance of the original brake lining assembly or the original drum brake lining, or
(b) At least 90 per cent of the cold performance of the replacement brake lining assembly or the replacement drum brake lining.
