There are significant differences between the Anti-lock Braking System (ABS) and the Automatic Emergency Braking (AEB) system for functional principles and application scenarios. The core function of ABS is to monitor wheel speed through sensors and dynamically modulate brake pressure during emergency braking to prevent wheel lock-up, thereby preserving vehicle steerability and reducing stopping distance. The AEB system represents a more sophisticated active safety technology, evolving from ABS and Brake Assist System (BAS). Utilizing sensors like radar and cameras, it proactively detects forward obstacles and autonomously initiates braking when the driver fails to respond promptly to mitigate collision risks. The primary distinction resides in their intervention mechanisms: ABS necessitates driver input, whereas AEB operates independently to assess and execute braking. Furthermore, AEB typically incorporates collision warning capabilities, though its detection of stationary objects or pedestrians is constrained by sensor technology (e.g., millimeter-wave radar vs. vision systems), with a relatively limited operational speed range (approximately 30-40 km/h). From an implementation standpoint, ABS has become standard equipment in most contemporary vehicles, while AEB predominantly features in premium or higher-trim models. Both systems collectively enhance road safety, though they differ substantially in technological sophistication and cost implications.
