Document ID: chunk:federal_register_of_legislation:F2025C00110:reg:2:p4
Version: federal_register_of_legislation:F2025C00110
Segment Type: reg
Provision Reference: reg 2 (pt 4/22)
Character Range: 23132–26195

category M2, N2, M3 and N31 with regard to an on-board system to avoid or mitigate the severity of a rear-end in lane collision.

              2.  Definitions
              2.1. "Advanced Emergency Braking System (AEBS)" means a system which can automatically detect a potential forward collision and activate the vehicle braking system to decelerate the vehicle with the purpose of avoiding or mitigating a collision.

              2.2. "Vehicle type with regard to its Advanced Emergency Braking System" means a category of vehicles which do not differ in such essential respects as:

             (a) The manufacturer's trade name or mark;

                  (b) Vehicle features which significantly influence the performances of the Advanced Emergency Braking System;

                  (c) The type and design of the Advanced Emergency Braking System.

              2.3. "Subject vehicle" means the vehicle being tested.

              2.4. "Target" means a high volume series production passenger car of category M1 AA saloon1 or in the case of a soft target an object representative of such a vehicle in terms of its detection characteristics applicable to the sensor system of the AEBS under test.

              2.5. "Moving target" means a target travelling at a constant speed in the same direction and in the centre of the same lane of travel as the subject vehicle.

              2.6. "Stationary target" means a target at standstill facing the same direction and positioned on the centre of the same test lane of travel as the subject vehicle.

              2.7. "Soft target" means a target that will suffer minimum damage and cause minimum damage to the subject vehicle in the event of a collision.

              2.8. "Collision warning phase" means the phase directly preceding the emergency braking phase, during which the AEBS warns the driver of a potential forward collision.

              2.9. "Emergency braking phase" means the phase starting when the AEBS emits a braking demand for at least 4 m/s² deceleration to the service braking system of the vehicle.

              2.10. "Common space" means an area on which two or more information functions (e.g. symbol) may be displayed, but not simultaneously.

              2.11. "Self-check" means an integrated function that checks for a system failure on a semi-continuous basis at least while the system is active.

              2.12. "Time to collision (TTC)" means the value of time obtained by dividing the distance between the subject vehicle and the target by the relative speed of the subject vehicle and the target, at an instant in time.

              3.  Application for approval
              3.1. The application for approval of a vehicle type with regard to the Advanced Emergency Braking System shall be submitted by the vehicle manufacturer or by his authorized representative.

              3.2. It shall be accompanied by the documents mentioned below in triplicate:

              3.2.1. A description of the vehicle type with regard to the items mentioned in