How Does the Crawl System Work?
3 Answers
The working principle of the crawl system involves the intervention of the vehicle's computer to control the brakes, throttle, and torque output. It can also adjust torque based on road condition feedback and electronically distribute braking force to all four wheels, ultimately preventing wheel slip. The driver only needs to steer and adjust the speed via a knob on the dashboard, without pressing the accelerator or brake. Related information: The full name of the vehicle's crawl mode is the Low-Speed Cruise Driving Assist System, also known as the "Foolproof Off-Road System." This system is particularly useful for those with limited off-road experience, as it enables them to navigate challenging obstacles with the system's assistance. When in low-range four-wheel drive mode, activating the switch located on the right side of the gearshift lever engages the low-speed cruise assist mode, maintaining a speed between 1-5 km/h. Below the switch, there is a three-position knob that allows the driver to toggle between three different speed settings. When climbing steep slopes or driving on special terrains such as snowy or icy roads, rocky paths, or sandy areas, the low-speed cruise assist system automatically manages the engine and brakes to maintain a steady low speed, ensuring excellent and stable passability. During operation, the driver does not need to focus on the accelerator or brake and can even remove their foot from these pedals. By concentrating solely on the road ahead and steering, the driver can effortlessly traverse difficult terrain and even ascend to otherwise unattainable heights.
Every time I drive on the highway or get stuck in traffic, I turn on the creep system. This thing is super convenient—it's like an automatic car-following assistant for your vehicle. I just press a button to set the speed, say 80 km/h, and it uses radar or cameras to scan the distance and speed of the car ahead. If the leading car slows down, the system immediately controls the throttle and brakes to automatically decelerate and maintain a safe distance. In traffic jams, it can creep along at low speeds without me constantly pressing the pedals. The principle is that sensor data is transmitted to the control unit, which then adjusts the engine and brakes to avoid rear-end collisions. This feature is especially useful for long-distance fatigue driving, reducing the hassle of constant operation. But remember not to rely on it completely—you still need to supervise it to handle unexpected situations.
As a tech enthusiast, I find the crawling system quite ingenious. It continuously detects the position of the vehicle ahead through the radar sensor on the front grille, with the assistance of a stereo camera for recognition. The computer calculates the safe distance and speed matching in real-time. If the vehicle ahead gets too close, it gently applies the brakes; if the road clears, it resumes the set speed. You just need to set a cruise speed or following distance, and the car can adaptively follow. This system integrates the vehicle's control unit, engine management, and braking module to jointly operate the throttle and brakes, reducing human error. In practice, it's incredibly smooth, especially in slow-moving traffic, effectively improving driving fluidity and reducing the risk of rear-end collisions.
