Text/Civil
With the current development of the industry, many of the configurations that were once only available to high-end models are now standard, such as the car cruise system, and its standard rate will reach 72.58% in 2020. Among them, fixed speed cruise is the mainstream configuration, accounting for 68.47% in 2020; at the same time, the proportion of adaptive cruise is also significantly improving.
Most people may not be used to using cruise systems, after all, the road conditions are unpredictable, and people still tend to believe their reactions. But with the gradual penetration of this function, we can also actively recognize and adapt to this function, after all, sometimes it can indeed bring convenience.
What is a car cruise system?
The current cruise system can be divided into two categories, fixed speed cruise and adaptive cruise, and adaptive cruise can be advanced to full speed adaptive cruise.
1. Cruise control system. As the name suggests, its role is to drive at a fixed speed at a set speed, and you can maintain the speed without pressing the accelerator pedal.
2. Adaptive cruise control. It is an intelligent automatic control system, on the basis of fixed speed cruise, it can realize the function of automatically maintaining the distance from the car. It is also possible to actively control the speed of the car.
3, full speed adaptive cruise is upgraded in the adaptive cruise foundation, adaptive cruise is generally 40km/h or 60km/h or more can be used, and the cruise speed of full-speed adaptive cruise can be set at 0~150km/h.
How the cruise system works
Constant speed cruise function is relatively simple, after opening the fixed speed cruise, the vehicle can control the speed of the engine, so that the vehicle remains at the set speed, even if the special road such as uphill or downhill can still be used, but the fixed speed cruise can only be fine-tuned by controlling the engine, and the vehicle cannot be directly braked by controlling the braking system.
The ACC adaptive cruise is more convenient, this system uses the radar in front of the vehicle (more hidden, generally in the LOGO position) to detect the distance between the vehicle itself and the car in front, when it detects that there is an obstacle in front or the distance in front of the car is closer, the ACC adaptive cruise function module will control the braking system of the vehicle to slow down until the distance between the vehicle and the front car is in the target value (the distance with the car can be set). If there is no vehicle in front of you at this time or the car in front of you leaves the lane where the car is located, the adaptive cruise function module controls the acceleration of the vehicle's power system until the set speed of adaptive cruise is reached.
Above we can see the difference between fixed speed cruise and adaptive cruise function: once the fixed speed cruise is set, the system cannot control the speed autonomously, while the adaptive cruise can adjust the speed of the vehicle according to the road conditions after the speed is set.
Hidden dangers of the cruise system
Cruise control, generally there will be a recovery function, in the cruising state to press the cancel speed button or after stepping on the brakes, press this function button can restore to the previously set speed. However, if the difference between the current speed and the set speed is too large, the computer may accelerate sharply in order to restore the previous speed as soon as possible, which will affect the driver. At the same time, fixed speed cruise generally does not have an active braking function, and if the driver is distracted, it may cause accidents.
Adaptive cruise also has hidden dangers: 1, the system may be more rigid, such as accelerating overtaking, the front car also changes lanes, the system may not be able to react to cause accidents. 2. If the driver relies on the adaptive system, it may not be able to react in time to affect the driving safety in the event of an emergency. 3, the system relies on radar operation, if the radar failure will also affect the safety.
How to use the car automatic cruise
1, press the key to open the system, the dashboard cruise indicator light is lit; 2, accelerate to the desired speed, press the SET key speed set at the current speed; 3, press the RES plus sign is to increase the speed at the current speed, press the SET minus sign is to reduce the speed at the current speed. The way to lift the automatic cruise of the car is to slam the brakes or press the cancel key, and the conditions for the use of the automatic cruise system of the car are: 1, rain and ice and snow days are disabled; 2, there are too many vehicles on the road, and automatic cruise cannot be used; 3, it can be used on the highway or fully enclosed road.
Note: The role of the most powerful driver assistance device is assist, so the driver must not rely too much on it, to ensure safe driving, improve driving vigilance is the most important.
summary:
The current car cruise system standard rate is getting higher and higher, it can indeed bring certain convenience, especially the adaptive cruise system, in the long-distance driving can reduce the driver's fatigue, but at the same time we can not rely too much on these auxiliary systems, after all, the auxiliary system in a variety of road conditions in a variety of emergencies may not be able to respond in time, the driver's safe driving behavior is the fundamental guarantee of driving safety.