Document ID: chunk:federal_register_of_legislation:F2008C00323:reg:12:p7
Version: federal_register_of_legislation:F2008C00323
Segment Type: reg
Provision Reference: reg 12 (pt 7/7)
Character Range: 367021–368266

ON CHASSIS DYNAMOMETER

        5.1.  Operating cycle

        During operation on track, road or on roller test bench, the distance shall be covered according to the driving schedule (Figure 9/1) described below:

        5.1.1. the durability test schedule is composed of 11 cycles covering 6 kilometres each,

        5.1.2. during the first nine cycles, the vehicle is stopped four times in the middle of the cycle, with the engine idling each time for 15 seconds,

        5.1.3. normal acceleration and deceleration,

        5.1.4. five decelerations in the middle of each cycle, dropping from cycle speed to 32 km/h, and the vehicle is gradually accelerated again until cycle speed is attained,

        5.1.5. the 10th cycle is carried out at a steady speed of 89 km/h,

        5.1.6. the 11th cycle begins with maximum acceleration from stop point up to 113 km/h. At half-way, braking is employed normally until the vehicle comes to a stop. This is followed by an idle period of 15 seconds and a second maximum acceleration.

        The schedule is then restarted from the beginning.
        The maximum speed of each cycle is given in the following table.

Table 9.1.
Maximum speed of each cycle

Cycle  Cycle speed
       in km/h