If two years ago, referring to the automatic vehicle driving assist system, I believe many people will feel strange and distant. And now and then mentioned automatic driving assistance words, many people can blurt out: What ADAS system, what L1 to L5 distinguish ah, even the difference of which can also be very familiar. Of course, this phenomenon is inseparable from the major car firms: in particular, a number of domestic brands and repairer brand new forces, equipped with a configuration early on in their own cars. In contrast joint venture brands like, whether voice or some action must be small. But now this phenomenon has been improved, for example, today we want to experience this modern Festa Beijing pure electric. (For easy reading, hereinafter referred Festa electric).
If you do not know too much about the autopilot grade, it can refer to this chart:
L1 : auxiliary driving, the driver can “foot off”, the eyes observe the road conditions simply use his hands to control the direction;
L2: autopilot section, based on the “foot off” on the further “sell “brake and throttle direction all done by the autopilot system, but the driver’s line of sight must observe the road conditions, in front of the hands and feet should also be prepared at any time control of the vehicle;
L3: in adequate conditions when the driver can not always pay attention to road conditions. This level of autopilot is not enough to deal with all the complexity of traffic, so in some complex cases, still requires the driver to take over control of the vehicle;
L4: the autopilot has been strong enough, the driver can the car to do some other things, do not worry about running condition of the vehicle;
L5: complete autopilot, without the driver even without a passenger, the vehicle can alone complete a driving safety.
(this standard is accepted by most car companies and organizations, of course, there are exceptions, such as Tesla, their own car has its own program in automatic driver assistance aspects)
As for ADAS (advanced driver assistance) function can be achieved, on the location of the automatic classification, belong to L2 – that is, to achieve “partial automation.”
Then look at the more than ten ADAS functions Festa electric propaganda.
Indeed, this function introduced at first glance, most people have to rip off circle. After I take a closer look, a pure electric car Festa achieved in terms of L2 has reached the autopilot function, which can own a vehicle acceleration and deceleration can be achieved and steering according to road conditions. Of course, this does not mean that is able to bend their own street, and similar overpass ramp, large curved plate bridges and the like, or need to use the driver himself. In addition there are various other auxiliary configuration, one by one we say.
■ L2 of the core functions easy to use it?
First of all the core L2 automatic driving assistance is most commonly used functions: adaptive cruise and lane keeping.
These two features can make your hands off the steering wheel and pedals short, but his eyes still staring at the front. Of course, if both functions must be good enough.
This time we drove Festa on pure electric Third, Fourth, and Fifth Ring Elevated, Beijing’s urban roads going around in circles for a long time, fully Festa experience a bit of pure electric two core functions.
First of all with the car, after setting the adaptive cruise speed, your feet can temporarily liberated, even if the lane ahead of the vehicle speed is very slow, Festa pure electric linear can be very calm decelerate, will not give you “paid off” feeling. In the congested road, the Festa pure electric brake will not stop because of repeated starting nod and a slowdown to accelerate the rise of the phenomenon of the passengers in the car ride experience is still very friendly. If the vehicle in front brakes just a short stop on the start, then, can follow Festa pure electric brake to stop and start.
Of course, this is only short-lived, if you see brake lights completely stopped, the vehicle driver is required to re-start control. This time will remind you of the need to use the dashboard multifunction buttons on the right side of the steering wheel or accelerator pedal to “activate” the vehicle front line.
Many people now like a gap in the traffic lightsTook out his cell phone to look at, then it may happen before you go all the way to the car, the car drops. But Festa pure electric will remind you at this time “to leave”, in addition to animation on the dashboard, the car will think of “ding” tone, very easy to use.
Also in Beijing, three, four, five rings on the road, lane keeping and adaptive cruise open, as if the vehicle began “autopilot”: full of himself acceleration and deceleration, turning. The entire steering action is also regarded as gentle and delicate, the steering amplitude is relatively accurate, it does not appear because the steering angle is too large or insufficient, then corrected again caused a sense of the vehicle body swaying of.
of course open lane keeping function is a prerequisite, that is, the speed higher than 60 km / h for the job, using the scene and will have a certain range: used in urban stop and go the opportunity to be less, and use the opportunity to loop expressway, high-speed and other sections will be much larger. When
and we have also been observed before to enter the speed limit of 40km / h ramp, pure electric vehicle Festa down to 56km / h, lane holding ends automatically, and after the vehicle speed cornering rose to 60km / h or more, electric Festa lane line recognized quickly and automatically turn lane keeping function.
In the case of an adaptive cruise + lane keeping, and if you want to change lanes and open turn signal, vehicle lane keeping automatically released, if there is no turn signal directly to a lane change, then there will be a little steering wheel resisted, but soon will be able to give up resistance and let you to take over, it really is worth boast a little. Repairer because some of the new forces of the steering wheel is really stubborn, not rush. It feels like a man with the same grab the steering wheel.
And if you are ready to hit the turn signal to change lanes, lane happens behind another car in motion, pure electric Festa will give you a warning: not limited to blind spot on the exterior mirror light flashes to remind , as well as animation and somewhat rapid alert warning means that the tone on the instrument panel.
In summary, the electric Festa lane keeping the speed can be opened, scenario, has a very good usability, adaptive cruise mating achieve L2 the vehicle lateral, longitudinal control is not askedQuestion. Of course, easy to use automatic driver assistance function again, it also acts as an auxiliary drive, you still have to use when holding the steering wheel, his eyes watching the road, ready at any time to take over control of the vehicle.
■ how other practical features?
In addition to the vehicle transverse direction, of the longitudinal control functions associated, Festa electric configuration table and nearly ten configuration, conclude, that the body close safety warning.
After the infrared radar complex 
after the first four four cameras, in addition to help in the detection of the vehicle when the close range and the obstacle alarm is given , also in conjunction with other sensors, with several new useful features.
For example, to get off this security warning function through the dashboard animation and relatively rapid beeps to get people to want to get off the prompt, can well avoid the observation caused by not enough time to get off Danger.
In addition to passing vehicles, pedestrians or cyclists run through can be similarly warning.
after we have repeatedly observed, this function can be triggered no false positives or false negatives case appears. It is noteworthy that, if the speed is walking through the door warning function Festa pure electric will not be triggered. It seems that the function of the trigger is a certain relationship with the speed.
In other words the co-pilot side of the well. In fact, this feature was also there is some controversy, some people think that this is unnecessary. But in my opinion, this feature is also very practical, Imagine, when you get off the side of the car while people talk to or call when you most likely to ignore the situation outside the car, and then if really a car passed by, then the consequences are really unthinkable.
▲ selected from the movie “Lee Adventures offer” if men should have the configuration of the car, behind that do not go through strenuous Bala save, and successful .
whileThis configuration, as if waiting for that through decades of Lee offer, when you did not attend to the situations and anxious to get off the car, the door to help you pushed.
Another feature can be said parking radar upgrade + images. Encounter on the road need to turn around, this function in addition to reversing the image and sound a warning to prompt you through the rear of a vehicle being outside, in the control panel and the dashboard will have an arrow telling you which direction from the vehicle. This feature is particularly useful for the novice, after all, blind + stop after a vehicle had to make a number of novice Huangde.
Finally, we also try to test a bit before the vehicle collision warning function, purpose of this feature we need not say anything, can trigger this function, it has been described the scene the situation is more responsible and extreme.
we were to 30km / h, 40km / h, 50km / h, 60km / h per hour to be measured, Festa have done it completely electric brake to stop.
But here still hope that we can concentrate on driving, never irrelevant before this collision warning brake, do not give it the opportunity of playing.
■ written in the last
experience of the last few days down, mounted on the Festa pure electric driving assist and not too many ingredients gimmick, more practical. Whether old or novice drivers, it can help owners more relaxed, safe driving is performed, in some extreme cases as much as possible to help owners avoid the risk of the occurrence.
To be honest, the same L2, Festa number of pure electric driving assist configuration with some car companies and more than it really can not be considered. But for consumers, most people do not have these configuration eleven understanding, not to mention what type of radar, camera, how many megapixels, consumers are more concerned about is that these functions in actual driving, in the end there is no use. Exactly, Festa pure electric automatic driver assistance function is to belong to a useful, easy to use this class.
Finally, still want to remind you that, at this stage, the automatic focus driver assistance system is on the “secondary” word instead of “autopilot”, the driver is fundamental. When you use the automatic driver assistance functions must remember this, do not cart before the horse.