Document ID: chunk:federal_register_of_legislation:F2012C00283:reg:7:p36
Version: federal_register_of_legislation:F2012C00283
Segment Type: reg
Provision Reference: reg 7 (pt 36/51)
Character Range: 605901–609118

provisions regarding type-approval of a hybrid electric vehicle (HEV) as defined in paragraph 2.21.2. of this Regulation.
              1.2. As a general principle, for the tests of Type I, II, III, IV, V, VI and OBD, hybrid electric vehicles shall be tested according to Annex 4a, 5, 6, 7, 9, 8 and 11 respectively, unless modified by this annex.
              1.3. For the Type I test only, OVC vehicles (as categorized in paragraph 2.) shall be tested according to condition A and to condition B. The test results under both conditions A and B and the weighted values shall be reported in the communication form.
              1.4. The emissions test results shall comply with the limits under all specified test conditions of this Regulation.
              2. Categories of hybrid electric vehicles
                       Off-Vehicle Charging1  Not Off-Vehicle Charging2
Vehicle charging       (OVC)                  (NOVC)
Operating mode switch           Without                With                       Without           With

         1 Also known as "externally chargeable"
         2 Also known as "not externally chargeable"
              3. Type I test methods
              3.1. Externally chargeable (OVC HEV) without an operating mode switch
              3.1.1. Two tests shall be performed under the following conditions:
               Condition A: Test shall be carried out with a fully charged electrical energy/power storage device.
               Condition B: Test shall be carried out with an electrical energy/power storage device in minimum state of charge (maximum discharge of capacity).
               The profile of the state of charge (SOC) of the electrical energy/power storage device during different stages of the Type I test is given in Appendix 1.
              3.1.2. Condition A
              3.1.2.1. The procedure shall start with the discharge of the electrical energy/power storage device of the vehicle while driving (on the test track, on a chassis dynamometer, etc.):
                  (a) At a steady speed of 50 km/h until the fuel consuming engine of the  HEV starts up;
                  (b) Or, if a vehicle cannot reach a steady speed of 50 km/h without starting up the fuel consuming engine, the speed shall be reduced until the vehicle can run a lower steady speed where the fuel consuming engine does not start up for a defined time/distance (to be specified between technical service and manufacturer);
(c) Or with manufacturer's recommendation.
               The fuel consuming engine shall be stopped within 10 seconds of it being automatically started.
              3.1.2.2. Conditioning of vehicle
              3.1.2.2.1. For compression-ignition engined vehicles the Part Two cycle described in Table 2 (and Figure 3) of Annex 4a shall be used. Three consecutive cycles shall be driven according to paragraph 3.1.2.5.3. below.
              3.1.2.2.2. Vehicles fitted with positive-ignition engines shall be preconditioned with one Part One and two Part Two driving cycles according to paragraph 3.1.2.5.3. below.
              3.1.2.3. After this preconditioning, and before testing, the vehicle shall be kept in a room in which the temperature remains