1. Unable to charge the problem
Portable charging gun is the most common failure problem is unable to charge the problem, the main reason is that the new energy vehicle portable charging gun internal parts of the connection line is disconnected, affecting the continuity of power transmission, portable charging gun charging effect is difficult to get the corresponding guarantee. This should be based on the new energy vehicle portable charging gun operating conditions of the charging problem can not be effectively judged. Through the cable on the control box alarm light flashing way to portable charging gun can not charge the problem of judgement, can also be inserted into the three-phase plug into the 220V socket after the use of a multimeter to measure the judgement. According to the judgement and relevant information to understand the cause of the portable charging gun can not charge the problem, and accordingly to carry out effective processing work. If the portable charging gun switch is damaged and can not be closed, it should be timely on all kinds of faults to carry out effective control, understand the new energy vehicle charging process portable charging gun ready signal, can not send charging ready signal situation for in-depth analysis and comprehensive processing, to ensure that the new energy vehicle portable charging gun can not be charged can be effectively regulated, to highlight the portable charging gun in the new energy vehicle safety and stability of charging. Charging gun in new energy vehicle's safe and stable charging role, so that new energy vehicles in society to increase the share.
2. Charging speed deviation
Portable charging gun charging speed deviation is manifested in two aspects, on the one hand, the use of different charging guns on the same new energy vehicles for charging, on the other hand, the use of the same kind of portable charging gun on different new energy vehicles for charging. These two situations will lead to the portable charging gun charging speed deviation, new energy vehicle power battery power storage effect and the stability of power transmission will also be affected. Based on this, the portable charging gun should be selected according to the model of the new energy vehicle and the power storage capacity of the power battery, to enhance the role of the portable charging gun in the charging of new energy vehicles, and to avoid problems in the charging process of the portable charging gun. Comparative analysis of different types of portable charging guns, according to the results of portable charging gun comparative analysis of the resistance value of the charging gun and charging speed to be adjusted. When choosing a portable charging gun, it is also necessary to consider the rated output current of the charging gun and the actual maximum charging current of the new energy vehicle and other information, to choose a portable charging gun that meets the requirements for the safe and stable operation of the new energy vehicle. From a fundamental point of view to solve the problem of portable charging gun charging speed deviation of new energy vehicles, to avoid the charging of portable charging gun on the function and service life of the power battery has a negative impact. Through this for the safe and stable operation of new energy vehicles to provide certain power support, the advantages of new energy vehicles driven by electric energy are effectively demonstrated.
3.Charging signal change
Portable charging gun charging process, may be due to the power battery demand and new energy vehicle power supply and other aspects of the impact of the charging signal change phenomenon, if not in accordance with the new energy vehicle charging signal change of portable charging gun power supply mode and voltage value to be adjusted, will lead to new energy vehicles portable charging gun charging problem is becoming more and more serious, which will have an adverse effect on the charging effect and service life of new energy vehicles portable charging gun. This will adversely affect the charging effect and service life of the portable charging gun of new energy vehicles. This should be combined with the new energy vehicle operation power demand and power battery storage capacity to determine the standard reasonable charging signal, through the new energy vehicle charging signal to the portable charging gun resistance value and voltage value of each component to adjust, to ensure that the portable charging gun operating parameters and the actual charging effect of the reasonableness of the portable charging gun to prevent the portable charging gun because of the line faults and power parameter is not accurate enough and the charging signal to change the problem. Problems. Combined with the portable charging gun charging principle of all kinds of fault problems to carry out effective control, strictly prevent the portable charging gun in the operation of the charging signal rashly change the problem, so that the new energy vehicle portable charging gun fault problems can be effectively dealt with. Through the charging signal to protect the portable charging gun operation and power transmission stability, to meet the new energy vehicle portable charging gun charging requirements.
4. Leakage protection failure
New energy vehicle portable charging gun in the actual use of the process, because of improper grounding and leakage protection failure, affecting the safety of new energy vehicle portable charging gun use, new energy vehicle charging safety and power conversion reliability will be affected to a certain extent, portable charging gun in new energy vehicle charging is difficult to effectively show the role of the new energy vehicle charging. This should be based on the portable charging gun charging needs and internal line planning to do a good job of grounding operations, to ensure that the three-phase plug grounding line planning to achieve a reasonable state, to solve the problem of portable charging gun leakage protection failure, and timely elimination of new energy vehicle charging process of portable charging gun faults, in order to ensure that the portable charging gun leakage protection function at the same time on all kinds of faults in the implementation of effective troubleshooting operations. According to the new energy vehicle portable charging gun charging principle and overall operation to ensure that the basic components of leakage protection normative, enhance the leakage protection function and portable charging gun other functions of the coordination between the coordination and cooperation efforts, so that the new energy vehicle portable charging gun charging process of leakage protection failure and other faults have been effectively regulated, which is to ensure that the portable charging gun charging effect and actual service life This is important for ensuring the charging effect and actual service life of the portable charging gun.
