Document ID: chunk:federal_register_of_legislation:F2025C00110:reg:2:p7
Version: federal_register_of_legislation:F2025C00110
Segment Type: reg
Provision Reference: reg 2 (pt 7/22)
Character Range: 31426–34392

below, there shall be an emergency braking phase having the purpose of significantly decreasing the speed of the subject vehicle. This shall be tested in accordance with paragraphs 6.4. and 6.5. of this Regulation.

              5.2.3. The system shall be active at least within the vehicle speed range of 15 km/h up to the maximum design speed of the vehicle, and at all vehicle load conditions, unless manually deactivated as per paragraph 5.4. below.

              5.2.4. The system shall be designed to minimize the generation of collision warning signals and to avoid autonomous braking in situations where the driver would not recognize an impending forward collision. This shall be demonstrated in accordance with paragraph 6.8. of this Regulation.

              5.3. Interruption by the driver

              5.3.1. The AEBS may provide the means for the driver to interrupt the collision warning phase. However, when a vehicle braking system is used to provide a haptic warning, the system shall provide the driver with a means to interrupt the warning braking.

              5.3.2. The AEBS shall provide the means for the driver to interrupt the emergency braking phase.

              5.3.3. In both cases above, this interruption may be initiated by any positive action (e.g. kick-down, operating the direction indicator control) that indicates that the driver is aware of the emergency situation. The vehicle manufacturer shall provide a list of these positive actions to the technical service at the time of type approval and it shall be annexed to the test report.

              5.4. When a vehicle is equipped with a means to deactivate the AEBS function, the following conditions shall apply as appropriate:

              5.4.1. The AEBS function shall be automatically reinstated at the initiation of each new ignition cycle.

              5.4.2. A constant optical warning signal shall inform the driver that the AEBS function has been deactivated. The yellow warning signal specified in paragraph 5.5.4. below may be used for this purpose.

              5.5. Warning indication

              5.5.1. The collision warning referred to in paragraph 5.2.1.1. above shall be provided by at least two modes selected from acoustic, haptic or optical.

              The timing of the warning signals shall be such that they provide the possibility for the driver to react to the risk of collision and take control of the situation, and shall also avoid nuisance for the driver by too early or too frequent warnings. This shall be tested in accordance with the provisions of paragraphs 6.4.2. and 6.5.2. of this Regulation

              5.5.2. A description of the warning indication and the sequence in which the collision warning signals are presented to the driver shall be provided by the vehicle manufacturer at the time of type-approval and recorded in the test report.

              5.5.3. Where an optical means is used as part of the