One night of tossing and turning, while wandering around Zhihu, He Hujun found a brain-opening question: "Why doesn't the car set up a screaming automatic braking system?" The netizen's answer is very "rational": "You quarreled in the car, the heroine screamed uncontrollably, at this time you were on the road at high speed, and then the car braked sharply because of the scream, what would be the consequences?" ”
Although it is only a joke, it is undeniable that the safety configuration of the current car is much richer. From the earliest ABS, ESP, and now about 100,000 can have AEB (active braking), lane keeping and other auxiliary driving functions.
However, the wind evaluation of active safety configuration is obviously polarized in the jianghu, some people say that buying a car must be chosen, and some people say that the first thing to get on the car is to close these. So what causes the crowd to be confused? Let's start with what they do!
Driving off-campus "coaches"
Remember those "inexplicable" slowdowns when we learned to drive? In fact, the instructor saw the dangerous behavior in the co-pilot with the auxiliary brake operation. We can understand active braking as the role of the coach, but the difference is that the way to identify danger is cameras and radar.
The lane keeping function is when the coach sees the deviation, reminds you to adjust the direction, and even helps you correct. Different models have a deep and shallow degree of involvement in this configuration, some just vibrate the steering wheel or sound warning, while others forcibly control the direction and do not let you deviate.
Therefore, Jianghujun suggested that when you test drive, you can try the degree of lane keeping function to see if you can accept it. However, do not try to actively brake, this behavior has a safety risk.
Why are there mixed reviews?
In fact, the main reason why many car owners resist such functions is that the timing of intervention is improper, resulting in a less perfect experience.
Taking active braking as an example, frequent false alarms and false braking are the most common cases. This is most noticeable especially after snow or rain, because the stains left by the rain and snow affect the radar's judgment. At this time, in addition to turning off this function, the only way is to wash the car.
After talking about active braking, let's talk about lane keeping. In the process of use, if you just vibrate the steering wheel and sound prompts, it is fine, but if you control the steering wheel, it will be difficult to avoid danger in the event of unexpected situations.
But then again, in fact, many old drivers are reluctant to use this function because the parallel line does not have the habit of hitting the turn signal. After opening the lane to keep, the parallel line without turn signals will be recognized as deviating from the lane, so resistance will occur.
At the same time, with the passage of time of the vehicle leaving the factory, the phenomenon of radar aging is inevitable, and the phenomenon of false alarms will increase. Some of the features are easy to use in new cars, but then they are less sensitive, so that some older owners will turn them off after a few years.
It is recommended to turn it on, but do not rely on it
Although these functions are not as "intimate" as the driving school instructor, they can indeed avoid some risks to some extent. For example, the common "ghost probe", which is a danger that we cannot detect in advance, and the active brake can make a move at the first time, and the reaction speed is definitely faster than ours.
According to the foreign media journal "Accident Analysis and Prevention", whether it is on urban roads with a speed limit of 60 or on suburban roads, AEB (active braking) can reduce rear-end accidents by about 38%. At the same time, accident studies in Europe show that if all cars are equipped with lane maintenance as standard, road traffic accidents can be reduced by about 12%.
It is worth mentioning that different vehicles not only have different levels of involvement, but also have different reaction speeds. The test results of each model can also be found on the Internet, so it can be used as a reference before buying a car.
Finally, I still hope that everyone can understand that these functions are ultimately for the purpose of assisting driving, and driving safety is still in their own hands.