The Automatic Emergency Braking (AEB) system’s performance in Car-to-Car Rear Moving and Braking scenarios addresses situations where a moving vehicle encounters another vehicle ahead that is slowing down or braking suddenly. This capability is critical in reducing rear-end collisions, especially in urban or highway traffic conditions.
How AEB Handles Moving and Braking Scenarios
* Detection:
1. The system uses radar and cameras to monitor the distance and relative speed between the vehicle and the one ahead.
2. It continuously tracks changes in the speed of the lead vehicle, including sudden braking.
* Risk Assessment:
1. The system calculates the time-to-collision (TTC) based on the relative speed and distance.
2. If TTC falls below a critical threshold, the system initiates action.
* Driver Alerts:
Initial warnings (visual, auditory, or haptic) alert the driver to take control.
* Automatic Braking: If the driver does not respond promptly, the AEB system applies partial or full braking to avoid or mitigate the collision.
Key Performance Metrics
1. Reaction Time: The system’s ability to detect and react quickly to a slowing or braking vehicle ahead.
2. Braking Force: Whether sufficient braking is applied to stop or reduce the impact force.
3. Speed Differential: Effectiveness at varying speed differences between the two vehicles. For example, High Speed: May reduce collision severity but not always avoid the crash. Low Speed: Works effectively in stop-and-go traffic.
4. Distance Maintenance: The system maintains a safe following distance when the lead vehicle resumes movement.