What are the triggering conditions for the Leiling's automatic emergency braking?

[VanFrancisco]

Leiling's automatic emergency braking is triggered when the ACC adaptive cruise control system is activated, and the vehicle's computer detects a potential collision risk. ACC Adaptive Cruise Control System: The ACC adaptive cruise control system is an intelligent automatic control system developed based on existing cruise control technology. During vehicle operation, the distance sensor (radar) installed at the front of the vehicle continuously scans the road ahead, while the wheel speed sensor collects speed signals. When the distance to the vehicle ahead becomes too small, the ACC control unit coordinates with the anti-lock braking system and engine control system to apply appropriate braking and reduce engine power output, ensuring the vehicle maintains a safe distance from the vehicle ahead. Pre-Collision System: The vehicle is equipped with pre-collision systems both front and rear, which will apply braking during normal driving or reversing if necessary. If an abnormal situation is detected ahead, the system will activate automatic braking to prevent accidents. The system's indicator consists of two vehicle symbols arranged front and back with a gap in between, and a scale-like mark below. The automatic braking function operates at speeds below 100 km/h. If an obstacle is detected ahead and the driver does not apply the brakes, the automatic braking function will activate.

[LenaLee]

I've been driving the Levin for almost three years now, and the pre-collision system has activated several times during my urban commutes. Its millimeter-wave radar and camera are constantly monitoring the road, calculating collision time whenever sudden deceleration from pedestrians or vehicles ahead is detected. If the system determines I can't react in time or haven't applied the brakes, it will intervene to stop the car. From my observation, it triggers most frequently when speed exceeds 30 km/h. Once during rain when mud obscured the camera, the system prompted me to clean the sensors, demonstrating how external conditions can affect sensitivity. The most impressive aspect of Toyota's PCS is its ability to detect electric bike riders - in real-world tests, it reliably stops the car even at 50 km/h. However, I'd recommend not relying solely on the computer; staying prepared to brake manually is always wiser.

[Roberto]

As someone who frequently drives long distances, I know the triggering mechanism of the Leiling's automatic emergency braking system like the back of my hand. It mainly depends on relative speed and distance. For example, if you follow too closely on the highway and the distance shrinks to a critical value, it will issue a warning. If I ignore the warning and continue to accelerate, the system will automatically brake to a stop. It actually works in three stages: first a beeping reminder, then a slight brake to slow down, and finally full-force braking. During testing, it can identify obstacles from 50 meters away. Once, it helped me avoid a rear-end collision on a snowy day, but be aware that the system may fail during sharp turns or in rainy/foggy conditions. Remember to have the radar probe calibrated by a technician during regular maintenance.

[Ayla]

During my business trip with the Leiling, I found that the activation of the autonomous emergency braking system depends on specific scenarios. The millimeter-wave radar in the front bumper is the main component, effective within a speed range of 10-180 km/h. The most common triggers occur when the car in front brakes suddenly while I'm still accelerating, or when a delivery e-bike suddenly cuts across an intersection. The system requires two conditions to be met simultaneously: the pre-collision time must be below the set threshold, and the driver must not have taken any deceleration action. Once, there was a false alarm and sudden stop in the underground garage, which I later realized was due to misidentification of a metal roll-up door. It's recommended to keep the windshield clean, as dirt can affect the accuracy of the monocular camera's judgment.

[Millie]

The Leiling's active braking is triggered by Toyota's PCS system. It functions like an all-weather bodyguard, scanning a 120-degree area ahead using a front camera and millimeter-wave radar. When the vehicle speed exceeds 30 km/h, it forcibly engages braking if it detects a vehicle, bicycle, or pedestrian with a pre-collision time of less than 1.2 seconds. In my tests, the daytime recognition rate is indeed high, but at night it depends on the headlight illumination range. Once at night without high beams, the system almost missed a pedestrian by the roadside. Remember to check the sensors when the dashboard yellow warning light comes on. It's safest for beginners to keep the full-time warning mode activated.

[DelKai]

My Leiling's automatic emergency braking has been triggered three times, all to prevent rear-end collisions. The system remains on standby 24/7, with triggering accuracy relying on millimeter-wave radar's distance measurement precision—capable of locking onto moving targets within 130 meters. The most common scenario occurs during highway driving when the leading vehicle suddenly changes lanes, revealing a stationary obstacle. In such cases, the system reacts 0.5 seconds faster than human reflexes to execute a full stop. However, note that sensitivity decreases on steep slopes or slippery roads; once, it miscalculated braking distance on icy pavement. Routine maintenance should prioritize cleaning the radar cover, as leaf debris or mud blockage can disable the system. Tests show it can completely avoid collisions at 60km/h, but only reduces impact speed at higher velocities.