Wang Lu: How to charge an electric car running long distance?

After 5 long-distance runs (1,000 kilometers a day), between Beijing and his hometown (southern Henan), it took 18.5 hours at most: 8 a.m. to 2:30 a.m. the next day – the eleventh holiday, traffic jams, inspections in Beijing, and high-speed charging. The fastest use is 11 hours - save 1 hour without traffic jams, save 2 hours without checkpoints, save 2.5 hours of smooth charging, save 1 hour of fast speed, and save 1 hour of short total distance (from Chaoyang to Daxing).

Traffic jams, inspection of these factors can not be controlled, let's talk about the problems and strategies of long-distance charging of electric vehicles.

1, the biggest misunderstanding - hope to reduce the number of charging to save time

My electric car shows 435 kilometers, the maximum number of kilometers in the city is 535 kilometers, and the high speed can only run 330 kilometers.

Before the first long run, my parents asked: Do I have to charge twice on the road? I said, at least 3 times. The result was 4 times. They said that electric vehicles can't run long distances, and fuel vehicles will go to Beijing with a tank of fuel.

After a few runs, I changed a basic concept: don't be afraid to charge too many times. Running for two hours to recharge once is the best rhythm. If you haven't charged for more than four or five hours, it's too miserable - it's not that you run to save electricity, but that you're stuck in traffic, and what's worse is that you can't find a charging pile and don't dare to run.

People who have not run long distances with electric vehicles may think: Isn't there a display on the charging pile map? Isn't it enough to plan ahead? ------------

Running in the city, or three or four hundred, five or six hundred kilometers, is not a big problem. But running a thousand kilometers, even if there are charging piles on the map, it is often unavailable or difficult to use: First, the service area is temporarily closed. If you have a good battery card, rush to the service area to charge when there is still 10%, but in case the service area is sealed, you are crazy - the power is not enough to run to the next service area with a charging pile. Second, the charging pile is broken. Third, it's not bad, you have to queue. Fourth, there is no need to queue, but it is super slow, and you can only run sixty or seventy kilometers in an hour. I used to queue for more than half an hour in the Xingtai service area during the eleventh holiday, recharged, ate a meal, and spent 55 minutes charging only 11 kWh (only enough to run 60 kilometers).

If you want to charge less, you have to run the car to almost no electricity (less than 10%), and charge it to a very full time (more than 90%). These two are not advisable, especially if there is no power to recharge - if the charging pile is broken, you have no way to do anything. A charge is too full and there is no efficiency, when the power is more than 80%, the speed of charging is very slow. The optimal charging strategy is to charge the 30% to 80% segment.

With this in mind, you no longer want to charge less. I initially wanted to try not to charge more than 4 times, but now the reverse is true – never less than 4 times.

2. The strategy of "every pile must be charged" under 150 kilometers

There are many charging piles in the Hebei section of the Beijing-Hong Kong-Macao Expressway. But most of them are quite slow – probably because the piles were built early. New piles are generally faster than old piles.

If you run a strange road and the table is less than 150 kilometers (actually 120 kilometers), it is best to adopt the "pile must be charged" strategy.

What is every pile that must be charged?

As long as there is a charging pile in the next service area, drive in to charge. If the speed doesn't come up, go to the bathroom and leave. Maybe it's only seven or eight minutes, enough to run thirty or fifty kilometers - don't fall in love, these thirty or fifty kilometers are enough for you to run to the next service area. Go to the next service area to see if the charging pile is good or bad, if it is still slow, ten minutes to go, if fast, stay to eat, half an hour, it will be charged to 80%. This can maximize charging efficiency and reduce risk - if the table is less than 50 kilometers left, this strategy can not be used, that is, slow, you have to wait, otherwise the next service area charging pile is broken.

3, non-holidays do not in order to charge under the high speed

My lesson is that electric vehicles from Henan to Beijing, Hebei section is best to go wide rather than Beijing, Hong Kong and Macao. There are many lanes in Beijing, Hong Kong and Macao, the road is wide, and it is more comfortable to run than the big and wide. However, the charging piles in the northern section of the Beijing-Hong Kong-Macao River are old and slow to charge.

On the contrary, the Henan section is best to run Beijing, Hong Kong and Macao - there are many charging piles. There are few charging piles in the Henan section of the Daguang Expressway and the Deshang Expressway, which is very dangerous. I went home before the Spring Festival, in the Shangqiu to Zhoukou section, even running several service areas can not find a charging pile that can be used. When the power is less than 80 kilometers away, go down the highway to Zhecheng County to charge, check the nucleic acid is not blocked, and when it comes to the place, the charging pile is occupied by the old man, whether the charging is not charged, even the parking space is not, or slow charging. Went to the next hotel to charge, begged for half a day, said that the epidemic did not allow foreign vehicles to enter. I navigated to the other two local charging piles, and even the shadow of the charging pile was not seen, which consumed 20 kilometers of electricity and an hour, and could only be re-on the highway. In order to save electricity, climb in the slow lane at a turtle speed of 60 yards, call the China Tower with a mobile phone with less than 10% of the electricity left, and ask whether the charging pile after the high speed in front of me is sure that it can be used - people do not know, and when I check the phone again, let me call again, the intersection has passed. Finally, I called to ask if the charging pile in Huaiyang Wanqiu Scenic Area could be used, and finally drove the car when the watch showed only single digits (I also brought a cat at that time).

This leads to a lesson: try not to get off the high-speed charging - queuing inspection, traffic jams, charging piles are not available, slow charging... A bunch of risks.

However, there is also a situation where I am afraid that I must get off the highway - holidays. Charging piles on high speeds on holidays are likely to be insufficient and very slow. In fact, electric vehicles should not run long distances on holidays.

4, the same service area charging pile may also vary greatly in speed

I roughly divided the charging speed of the high-speed service area I ran through, and the fastest one can charge more than 1 kWh in an average of 1 minute. Don't look at the "fast charge" and "slow charge" on the map - slow charge must not be fast, fast charge is not necessarily fast.

fast:

Beijing, Hong Kong and Macao northbound: Xuchang, Yuanyang, Anyang

Beijing, Hong Kong and Macao southbound: Zhengzhou East

Deshang southbound: Xiajin West, Xinxian County

Daguang southbound: Shenzhou, Weixian South, Huaxian County

slow:

Beijing, Hong Kong and Macao northbound: Baixiang, Gaocheng, Gaochengbei, Dingzhou, Wangdu, Xushui, Xingtai

Southbound direction of Beijing, Hong Kong and Macao: Dingxing, Xingtai, Luohe, Zhumadian

Shin-Yuan North: Mr. Yuan

This is only the generality. Like the Xia Jin West service area, tried two charging piles, both too slow to do, try the third, the speed is very fast. This has also been the case in other service areas. So you may wish to try more, it looks like the same charging pile, the speed may be very different.

In addition, I suspect that speed may also be related to charging time. Morning charging is generally relatively smooth, I don't know if it is because there are fewer people charging in the morning, everyone gets up in the morning is fully electric, and at night, there are more people charging on the highway, and everyone has no electricity. My charging experience in the high-speed service area after four or five o'clock in the evening was mostly unpleasant.

5. How far can a charge run on high speed?

My parents used to tell me, "Fill up the electricity before you go." I heard that I was charging in the service area and would always say "charge a little more", or "run slower, save power" - in fact, I don't need to save too much power. However, the instantaneous energy consumption and the average energy consumption must be counted in mind, so that the real mileage that the remaining power can run at any time instead of the table, and the real mileage is also very related to whether to open the air conditioner, heating, and defrosting.

Once you're in the right place to charge, it doesn't matter if the remaining charge is 10% or 30% or 50%. In fact, it is more appropriate to reach the service area that can be charged when there is still 30% left - you can calculate how much to charge this time. Although Baidu Maps, e-charging, and even the car itself have the function of planning charging, they are not as good as planning themselves - they may let you charge at high speed, or do not consider the problem that the charging pile is not available at all.

People often ask: How far can your car run once charged?

Of course, the question is to run from 100% to no electricity, but in the actual car, it is almost impossible to run to no power and recharge. On the high speed, it will not charge until 100% to leave, and it will not run out of power to recharge. Therefore, how far to run with electricity once charged, it is not certain.

Take my car, for example, the full is 60 degrees, and it can run 330 kilometers at high speed. When I select two charging nodes, it is advisable to consume no more than 65% of the power. That is to say, if the current electricity is 90%, running to the next node to consume 65% of the electricity, then there is only 25%, enough to run 80 kilometers, this 80 kilometers can almost guarantee that in case the charging pile is not available, there is room for maneuver.

65% of 330 km is 215 km. On the highway, without traffic jams, less than 2 hours. Therefore, the ideal situation for me to run at high speed is to run for almost two hours to stop and recharge, soothe the cat, let the cat let go of the wind, go to the toilet, eat a meal, and more than half an hour has passed. Charge four times, run five sections, 12 hours, about 1000 kilometers.

Ideally, an electric car with a range of 535 kilometers in the urban area is only in its early 200s when charged on high speeds – even a little farther away, but it is dangerous and not efficient enough.

6. How to plan the charging node?

I usually figure out where the current power can run, and look for the first service area with charging piles along the way within the previous 50 kilometers as a "virtual passing point". I say virtual passpoint because I'm going to find two service areas with charging piles in front of it, which are also set as passing points. In this way, you can still run about 100 kilometers to the first passing point, and only 20 or 30 kilometers are left to run to the third passing point.

If the first route point is successful, I will eat directly, charge the electricity to more than 80%, and the remaining second and third route points will not stop, and re-plan the subsequent itinerary. In case it doesn't go well, the service area is closed or the charging pile breaks, I have two more chances and don't have to get off the highway. The chance that even running three via point charging piles will not be available is still very low. But the odds of running the charging pile slowly at even three passing points do exist. In that case, it is necessary to adopt the strategy of "every pile must be charged".

You can also plan how much to charge this time according to the next 3 passing points. If it's far away, it's a little more filling. In addition, it should be noted that when running long distances, the e charging wallet should be charged with hundreds of dollars in advance. Otherwise you're eating, there's no money over there, and the charging stops. There is a distance from the service area canteen to the charging pile, and the time that could have been charged was wasted.

In order to save time, I usually stop, insert the gun, scan the code (plug and charge recognition time is longer than scanning the code), comfort the cat, wash my hands, eat, go to the toilet, collect the cat back to the cage, pull out the gun, and leave. The key step is to pay attention to the charging speed after successful scanning of the code, if not, quickly change the pile, do not wait for the cat to run to the restaurant to find that the speed is not coming.

7, more helpless than charging is traffic jams and checkpoints

Judging from the several times when beijing and Henan ran, there was no inspection when going out of Beijing, and there was no inspection from Hebei to Henan. But from Henan to Hebei, it is necessary to check twice, once out of Henan and once into Hebei. When you enter Beijing, you have to check again. The inspection in Beijing is the most time-consuming. Moreover, at that time, I had been driving for a day and was very tired.

In terms of charging, it can be planned. In terms of traffic jams, as long as you avoid holidays, it generally won't be too long. But checkpoint this, there is no way. You can check the congestion at the Beijing checkpoint a few days in advance. In short, electric cars run long distances, smooth or not, but also depends on luck.