What is the Active Braking Active Safety System?

[McTravis]

Active Braking Active Safety System is an anti-collision technology introduced by Volvo. The City Safety system, as a new active safety technology, helps drivers avoid common low-speed rear-end collisions in urban traffic. When the vehicle ahead brakes, stops, or encounters other obstacles, this system automatically increases braking force to help the driver shorten the braking distance before taking action. The active braking function refers to a technology where the vehicle, while driving normally without adaptive cruise control, can autonomously generate braking effects to slow down the vehicle when encountering sudden hazards, thereby improving driving safety. However, currently, different automakers have not standardized the naming of this technology. Active safety systems include safety systems with electronic devices such as ABS and ESP. When the vehicle speed reaches 30 km/h, this system automatically activates and monitors traffic conditions through the optical radar system on the front windshield.

[Rod]

I recently encountered a sudden automatic braking situation right after I started driving. That day in the city, I was following a taxi when it abruptly stopped. Before I even had time to hit the brakes, my car sounded an alarm and forcefully braked on its own, giving me quite a scare. This autonomous emergency braking system works by monitoring distance through the windshield camera or front grille radar. When it calculates an imminent collision, it follows a three-step process: first beeping to alert you, then automatically applying light braking if you don't respond, and finally executing full-force braking if there's still no time to react. Nowadays, this feature comes standard on most domestic cars priced around 100,000 yuan, and it has genuinely saved me from two potential rear-end collisions.

[WestonLynn]

Last time I heard car engineers talk about the secrets of automatic emergency braking. The key actually lies in two metrics: detection rate and false alarm rate. A good system can reliably detect pedestrians and vehicles even in rainy or dark conditions—like Volvo's system that can even stop for suddenly darting bicycles. But cheaper systems are prone to misjudgment; a friend's car once slammed on the brakes automatically because of a bridge pillar's shadow. If you're buying a car with this feature, pay close attention to its AEB test scores—the complete rankings are available on the C-IASI crash test official website. Remember, the system is just an assist; you can still get into trouble if you play with your phone while driving.

[Gael]

As a veteran driver with twenty years of experience, I find this technology more reliable than the defensive driving taught in driving schools. Especially during rainy or snowy days when the road is slippery, human reflexes can't match the speed of radar. Last week on the highway, I encountered a dense fog where visibility was zero, and it was entirely up to this system to monitor the distance to the car ahead. However, I'd like to remind everyone of three points: keep the system's millimeter-wave radar clean; the automatic braking sound is extremely loud and might scare children in the back seat; after activation, remember to check for any abnormal ESP and ABS warning lights.