There are really many friends who think that the daytime lights are useless, and there are many preconceived notions: I did not have daytime lights before, and my car did not drive well?
There is also a daytime lights, is not the same as the solar flashlight of Stephen Chow movie? There are also feelings that the domestic is actually called "water and soil are not satisfied", not necessarily the moon abroad is round, and the safety has not improved much and so on.
Inertial thinking thinks that the daytime lamp is to take off the pants and fart
First of all, this is a bit of a taste of inertial thinking, turn on a light during the day, people's common sense, a little take off the pants for what? The taste of a superfluous move, right? Subtle judgment of us will have an impact.
Shi Jin published a paper in the journal Journal of Anhui University of Science and Technology (Social Science Edition), "On the Development of Mindset and Human Understanding", which was mentioned above.
Mindset is also the "inertial thinking" in the vernacular, and once formed, it has relative stability and independence.
It will make the subject consciously or unconsciously think and deal with problems in a certain psychological tendency and a fixed thinking format.
This is very easy to understand, what is the lamp for?
The lights at home are turned on at night when it is dark, do you turn on the lights in your house during the day? During the day my house does not turn on the lights. So why should I turn on the lights when I drive during the day? Is it human nature? This is actually called "inertial thinking".
I think that the daytime running lamp is not used in China
In fact, the daily running lamp must have a role, no role manufacturers spend so much money to increase costs and reduce revenue? What else is there to do?
Lei Xiaofang, Guo Jianda and others published a paper in the journal "Electronic World", "The Development of Daytime Running Lights in China's Own Car Brands", which is mentioned.
The daytime running light is not a light, not to let the driver see the road clearly, but to let others know that we are a car, and there is a car that has driven over, which actually belongs to the category of signal lights.
It's like: the blind man lights the lamp not to let himself see clearly, but to let others see that he is walking, you pay a little attention, don't bump into me or whatever.
Many friends feel: this kind of weather in China is not like Northern Europe, right? It often snows, and when the snow fog comes... We have good light here during the day, which is fully able to meet the requirements of driving.
Domestic advocacy of daily lights, completely copied does not have much significance, right? The soil and water are not convinced, right? The foreign moon means more round.
This also has a little bit of a natural component, take the smog days as an example, for example: northwest of the mainland, north China, etc. These places, smog days actually account for a certain proportion.
There is a data in the "Analysis of the Occurrence of Smog in The North China/Fenwei Region in 2020-2021 Autumn and Winter" released by the International China Environment Foundation.
In the autumn and winter of the past two years, the number of pollution days in Jinan is 55 days, the number of pollution days in Zhengzhou is 61 days, and the number of pollution days in Xi'an is 65 days.
365 days a year, smog days are almost 1/6, rainy days will not affect the line of sight, etc., in fact, it is not a small head, the daytime lamp is still useful.
Turning on the daytime lights during the day is a waste of money
Of course, many friends simply think that the daily running lights are on, is it a waste of electricity and waste of energy? Laborious and unflattering, really useless.
In fact, the energy consumption of the daily running lamp is actually not as exaggerated as imagined.
Shao Jia published a paper in the journal "Science and Technology Information", "Overview of Auto LED Daytime Running Lights", which said: The total power consumption of a daily running lamp is about 13.5W, in fact, it is not as powerful as the fast charging of mobile phones.
Simply calculated, it consumes about 0.0135 kWh of electricity for 1 hour.
Ordinary people go to work in a day, which is great, that is, 2 or 3 hours, right? It may be too long to change jobs, no more than 0.05 kWh.
If it is an online ride-hailing, then refer to the "2021 China First-tier City Travel Platform Research Report" released by the Academy of Social Sciences of Tsinghua University.
The average working hours of e-hailing drivers every day is about 11.05h, which is hard, even if the daily running lights are turned on when running, that is, it consumes about 0.15 kWh of electricity.
Before we did the video, "how many kWh of electricity can be generated by 1 liter of gasoline", the above is more detailed, we will briefly talk about it here: 1 liter of gasoline can probably produce 0.23 kWh of electricity.
That is to say: even if the online car runs continuously on the road every day, full of calculations, running with the daily running lights for a day, at most it consumes 0.65L of gasoline.
If it is an ordinary friend, it is basically negligible, this must be counted, then the car window down, up is not also counted? The glass is still quite heavy, there is no need, the car is not our ancestor.
I think the daytime lights are too bright and harsh to the eyes
Finally, some friends will feel: the daytime lights are too bright, a little dazzling, will it affect the driving safety? It is a negative optimization.
In order to drive the car well and sell well, there is a little thing that is not very good, but you are not willing to tell us about it! It's a "conspiracy."
In this case, it is probably the daytime running lights that are modified or installed after encountering others, the quality is uneven, and the light distribution performance may also be unqualified.
Some of the daytime running lights bought on the Internet are actually not promoted according to the functions and characteristics of the daytime running lights themselves, and the publicity is all about how cool, how dazzling, how beautiful...
This lamp is installed, boyfriend / girlfriend casually find, the colors are various, it is to look good, the function of the daily lamp itself is not good, whether it is qualified or not, it is really difficult to say, people are not surprised.
In fact, there is a national standard, GB 23255-2019, you check online, "Motor Vehicle Daytime Running Light Distribution Performance", which is specified.
Daytime running lights should generally be white, and in any direction where the daytime running lights can be seen, the luminous intensity should be no more than 1200cd, called "Candela".
What is the concept of 1200cd?
I looked for the luminous intensity of the high beam lamp to make a comparison, high beam lamp, if the high beam of the new car is 2 lights system (that is, the far and low beam lights share 1 bulb of this), the single luminous intensity is not less than 18000cd.
If it is a 4-lamp system (that is, separate, there is a separate high beam bulb), it is not less than 15000cd.
Simply calculate, the luminous intensity of the regular day running lamp is less than 1/10 of the high beam lamp, in general, there will be no more dazzling, as long as it is a qualified genuine product.
Many people are mainly affected by inertial thinking
Therefore, in general, the reason why many friends feel that this daytime lamp is useless is mainly due to the influence of inertial thinking.
We turn on the lights at night when it is dark, the lights are not turned on at dawn, the common sense of people, is not a very rare problem, most friends are so think so! Preconceived notions! Redundant! At this time, of course, there will be some provocations on the daytime lamp.
Why do some people think that halogen lamps are the best car lights
Now the lights on the car, day lights, headlights, fog lights... All kinds of lights, it seems that not to say a LED are embarrassed to take out and sell.
But in fact, there are many old driver friends who say: "You are all too young, you have not driven these harsh environments, halogen lamps are the best." ”
"The harsher the environment, the clearer the halogen lamp, and the white lights of you shine over there, and the fog is vast and meaningless."
Is the old driver old-fashioned? Or is the LED defective? Is the direction of technology optimization now getting better and better to sell? Or is there a basis for the fact that it is really getting safer and safer from a technical point of view?
Keyword: headlights
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My public account, every day will give you a piece of car practical small dry goods, text version, audio version, video version, you pick your own convenient to come, "spare tire said car" We will continue to talk tomorrow.
bibliography
SHI Jin. On Mindset and the Development of Human Understanding[J].Journal of Anhui University of Science and Technology (Social Science Edition), 2003
Lei Xiaofang,Guo Jianda,Song Chong,Xu Dan. The development of daytime running lights in China's own automobile brands[J].Electronic World, 2013.
Analysis of haze occurrence in North China/Fenwei region in autumn and winter of 2020-2021. International China Environment Foundation
Shao Jia. Overview of automotive LED daytime running lights[J].Science and Technology Information, 2013.
2021 China First-tier City Travel Platform Survey Report. Academy of Social Sciences, Tsinghua University
[6] GB 23255-2019.Light distribution performance of motor vehicle daytime running lights[S].