Document ID: chunk:federal_register_of_legislation:F2024L00443:reg:3:p1
Version: federal_register_of_legislation:F2024L00443
Segment Type: reg
Provision Reference: reg 3 (pt 1/13)
Character Range: 212725–215801

3                 That for conditions No. 2, multiplied
                  by a factor of 1.7

              3.3. Additional requirements for Hybrid Electric Vehicles

              3.3.1. The vehicles shall be tested with the fuel consuming engine running. The manufacturer shall provide a "service mode" that makes execution of this test possible.

              3.3.2.  The tests shall be carried out only for conditions 1 and 2 of paragraph 3.2. If for any reasons it is not possible to test on condition 2, alternatively another steady speed condition (with fuel consuming engine running under load) should be carried out.

              4. Test method

              4.1. For the operation conditions as listed in paragraph 3.2. of this annex, reliable function of the crankcase ventilation system shall be checked.

              5. Method of verification of the crankcase ventilation system

              5.1. The engine's apertures shall be left as found.

              5.2. The pressure in the crankcase shall be measured at an appropriate location. It is recommended to measure the pressure at the dip-stick hole, if feasible.

              5.3. The vehicle shall be deemed satisfactory if, in every condition of measurement defined in paragraph 3.2. of this annex, the pressure measured in the crankcase does not exceed the atmospheric pressure prevailing at the time of measurement.

              5.4. For the test by the method described above, the pressure in the intake manifold shall be measured to within 1 kPa.

              5.5. The vehicle speed as indicated at the dynamometer shall be measured to within 2 km/h.

              5.6. The pressure measured in the crankcase shall be measured to within 0.01 kPa.

              5.7. If in one of the conditions of measurement defined in paragraph 3.2. of this annex, the pressure measured in the crankcase exceeds the atmospheric pressure, an additional test as defined in paragraph 6. of this annex shall be performed if so requested by the manufacturer.

              6. Additional test method

              6.1. The engine's apertures shall be left as found.

              6.2. A flexible bag impervious to crankcase gases and having a capacity of approximately five litres shall be connected to the dipstick hole. The bag shall be empty before each measurement.

              6.3. The bag shall be closed before each measurement. It shall be opened to the crankcase for five minutes for each condition of measurement prescribed in paragraph 3.2. of this annex.

              6.4. The vehicle shall be deemed satisfactory if, in every condition of measurement defined in paragraph 3.2. of this annex, no visible inflation of the bag occurs.

              6.5. Remark

              6.5.1. If the structural layout of the engine is such that the test cannot be performed by the methods described in paragraphs 6.1. to 6.4. of this annex, the measurements shall be effected by that method modified as follows:

              6.5.2. Before the test, all apertures other than that required for