[car home Electric Vehicle] The vehicle can’t be charged by fast charging piles. I wonder if pure electric vehicle friends have ever encountered a similar situation? This happened to our work car recently. Looking at the forum, I found that there were more than one cyclist who had similar problems. Today, let’s take a look at it together. How to solve the charging failure of the vehicle? What caused this? If your car is in the same situation, please refer to our solution.
● How to solve the problem of not being able to charge quickly?
Previously, our work car suddenly failed to be charged through the State Grid charging pile, but the charging pile itself was normal, because other vehicles could be charged through this pile. In order to verify whether there is a problem with the vehicle, we went to the other two charging stations to try, and the results were the same: we could not start charging.
I believe that many riders have also encountered the situation that vehicles cannot be charged. First of all, we can confirm whether the failure of vehicle charging is caused by the failure of charging piles. Obviously, the situation we encountered is not the failure of charging piles, but the problem of vehicles, so we chose to go to the 4S shop to find a solution. We learned from the after-sales staff of the 4S shop that the failure of vehicle charging may be due to the problem of software (vehicle charging protocol). Generally, the software is updated when pure electric vehicles are maintained, so there are few customers who upgrade the software alone, but we still asked the 4S shop to refresh the charging software of our work car.
After the upgrade, we tried to charge the vehicle quickly again. At this time, several national grid charging piles can charge the vehicle. If your car also has the situation that the State Grid charging pile can’t be charged, you may wish to try to upgrade the charging system in the 4S shop, which may solve your problem; In addition, when the vehicle is undergoing routine maintenance/inspection, the owner can remind the 4S shop to check whether the vehicle charging agreement needs to be updated, so as to avoid trouble caused by software problems later.
In the Cheyou Forum, we can also see that more than one car owner has encountered the problem of charging too fast, and some of them have also solved the problem by upgrading their software. In fact, the so-called upgrade software is to enable vehicles and charging piles to communicate normally. Since we talked about this issue today, we might as well talk about it by the way. What is the national standard charging protocol and what does the communication between charging piles and vehicles mean?
● What is the national charging protocol/communication protocol?
First of all, why do charging piles and vehicles have national charging agreements? The national standard charging protocol makes the charging interface and communication of different brands of pure electric vehicles have unified standards, which also makes the charging service more standardized; Vehicles and charging piles all adopt the national standard charging protocol, so as to realize that different brands of vehicles can be charged with different public charging piles, and help the market to further unify.
For example, nowadays, almost all smartphones in Android system use the Type-C charging interface, and many electronic devices that can be charged through USB also use the same charging interface. The purpose of this is to unify the standards and realize interoperability. "You can charge when you get the cable". Does this greatly improve the convenience of charging? Of course, the charging conditions of pure electric vehicles are much more complicated than that of mobile phones, and the former needs to join the charging agreement.
In addition, if the national standard charging agreement is not established, different brands of vehicles and charging piles may have different technical routes, which may lead to inconsistent safety; The national standard charging protocol has unified requirements for fast charging interface and safety requirements. Including charging piles, the charging gun should meet the requirements of no deformation at high temperature, no damage due to falling or collision, waterproof and dustproof; Therefore, in addition to compatibility, the national standard charging protocol can also play an important role in charging safety.
Specifically, our latest GB charging protocol GBT27930-2015 upgraded five national standards of vehicle charging interface and communication protocol, thus achieving the purpose of updating and unifying software and hardware. For example, the national standard charging protocol adds the functions of charging interface temperature monitoring, electronic lock, insulation monitoring, discharge circuit and so on.
With the hardware standard, the rest is the software part, which is what we call communication. In fact, we upgrade the software so that the charging pile and the car can communicate normally, otherwise the car will not be able to charge normally. To put it simply, communication is the process of continuous communication and information exchange between the vehicle and the charging pile. Only by "communicating with each other", "disclosing to each other" and "reporting to each other" can the charging process be successfully completed.