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<\/figure>\n\n\n\nWhat does charging cc1 and cc2 mean?<\/strong><\/p>\n\n\n\n (CC1):<\/strong> During the charging process, the non-vehicle charging equipment continuously monitors the connection status of the charging plug and the charging socket through the input voltage signal of the connection confirmation contact. Once an abnormality occurs, the non-vehicle charging equipment immediately turns off the DC power output and completes the unloading. After that, turn off switch S1.<\/p>\n\n\n\n (CC2):<\/strong> During the charging process, if the off-board charging device does not receive the charging level requirement message periodically sent by the battery management system within 100ms, the off-board charging device also responds to the function of turning off the DC power output.<\/p>\n\n\n\n Electric vehicle charging pile charging gun socket standard<\/p>\n\n\n\n In 2006, China issued the \u201cGeneral Requirements for Electric Vehicle Conductive Charging Plugs, Sockets, Vehicle Couplers and Vehicle Jacks\u201d (GB\/T20234-2006). This national standard specifies the charging current as 16A, 32A, and 250A AC. The connection classification method with 400A DC mainly draws on the standard proposed by the International Electrotechnical Commission (IEC) in 2003, but this standard does not specify the number of connection pins, physical size and interface definition of the charging interface. In 2011, China introduced the recommended standard GB\/T20234-2011, which replaced some of the contents in GB\/T20234-2006, which stipulated that the rated AC voltage should not exceed 690V, the frequency should be 50Hz, and the rated current should not exceed 250A; the DC rated voltage should not exceed 250A. Not more than 1000V, rated current not more than 400A.<\/p>\n\n\n\n The Combo socket can allow slow charging and fast charging of electric vehicles. It is currently the most widely used socket type in Europe, including Audi, BMW, Chrysler, Daimler, Ford, GM, Porsche and Volkswagen all equipped with SAE (Society of Automotive Engineers). ) developed charging interface.<\/p>\n\n\n\n On October 2, 2012, the revised draft of SAE J1772, which was voted by the relevant SAE committee members, became the only official DC charging standard in the world. The introduction of this standard is to change the status quo of the mixed charging system and to enhance consumers\u2019 enthusiasm for purchasing electric vehicles. The core of the standard for DC fast charging based on the revision of J1772 is the Combo Connector.<\/p>\n\n\n\n The previous version of the standard (made in 2010) specified the basic J1772 connector for AC charging, with lower charging levels (AC Level 1 for 120V and Level 2 for 240V). This basic connector is widely used today and is compatible with Nissan Leaf, Chevrolet Volt, and Mitsubishi i-MiEV electric vehicles. In addition to all the original functions, the Combo Connector in the new J1772 standard formulated in 2012 has two more pins, which can be used for DC fast charging, but it is not compatible with the current production of old electric vehicles.<\/p>\n\n\n\n Pros: The biggest benefit of the Combo Connector is that in the future automakers can use a socket on their new models, not only for the first-generation, smaller-sized basic AC connector, but also for the second-generation, larger-sized Combo Connector , the latter can provide both DC and AC currents, charging at two different speeds.<\/p>\n\n\n\n Disadvantages: Fast charging mode requires a charging station to provide up to 500 volts and 200 amps of current.<\/p>\n\n\n\n CHAdeMO is the abbreviation of CHArge de Move. It is a CHAdeMO socket supported by Japan\u2019s Nissan and Mitsubishi Motors. CHAdeMO translates from Japanese as \u201ccharging time is as short as a coffee break\u201d. This DC fast charging socket can provide a maximum charging capacity of 50kw.<\/p>\n\n\n\n EV models that support this charging standard include: Nissan Leaf, Mitsubishi Outlander Plug-in Hybrid, Citroen C-ZERO, Peugeot iON, Citroen Berlingo, Peugeot Partner, Mitsubishi i-MiEV, Mitsubishi MINICAB-MiEV, Mitsubishi MINICAB-MiEV Truck , Honda Fit electric version, Mazda DEMIO EV, Subaru Stella plug-in hybrid, Nissan eEV200, etc. It should be noted here that Nissan Leaf and Mitsubishi i-MiEV electric vehicles have two different charging sockets, one of which is suitable for the basic J1772 connector, which is the Combo connector introduced in the first part; the other is suitable for Japan\u2019s native CHAdeMO standard connector.<\/p>\n\n\n\n The fast charging method adopted by CHAdeMO is shown in the figure, and the current is controlled by the CAN bus signal of the car. That is, while monitoring the battery status, the current value required for charging is calculated in real time, and a notification is sent to the charger through the communication line; the fast charger receives the current command from the car in time and provides the current according to the specified value.<\/p>\n\n\n\n Through the battery management system, the battery status is monitored and the current is controlled in real time, which fully realizes all the functions required for fast and safe charging, ensuring that the charging is not limited by the universality of the battery. In Japan, 1,154 quick chargers installed according to the CHAdeMO standard have been put into use. In the United States, CHAdeMO\u2019s charging stations have also been widely \u201ccast the net\u201d. The latest data from the US Department of Energy shows that there are 1,344 CHAdeMO AC fast charging stations in the United States.<\/p>\n\n\n\n Advantages:<\/strong> In addition to the data control line, CHAdeMO also uses CAN bus as the communication interface. Due to its superior noise resistance and high error detection ability, communication stability and reliability are high. Its good charging safety record has been affirmed by the industry.<\/p>\n\n\n\n Disadvantages:<\/strong> CHAdeMO was originally designed for a charging output of 100 kW, and the connector is very bulky, but the output power in the charging car is only 50 kW.<\/p>\n\n\n\n Tesla cars have their own set of charging standards, claiming that they can run more than 300 kilometers in 30 minutes. Therefore, its charging socket has a maximum capacity of 120kw and a maximum current of 80A.<\/p>\n\n\n\n Currently, Tesla has 908 Supercharger stations in the United States. In order to enter China, Tesla has also established 7 super charging stations in my country, 3 in Shanghai, 2 in Beijing, 1 in Hangzhou, and 1 in Shenzhen. In addition, in order to better integrate into various regions, Tesla plans to abandon the control of charging standards and adopt the national standards of various countries, which has been implemented in China.<\/p>\n\n\n\n So here comes the question, although the beneficial effect of Tesla doing this is that Tesla owners can use the huge charging network established under the power of the Chinese government to charge; Tesla has increased product sales. The question is how owners who have already purchased a Tesla model will be able to charge them after the standard has changed. If there is no corresponding solution. The contradictions faced by Tesla owners are: first, they can only charge at the charging stations built before the standard change, and the convenience of charging will not improve over time; the second is to ask Tesla to return the car.<\/p>\n\n\n\n Advantages: advanced technology, high charging efficiency.<\/p>\n\n\n\n Disadvantages: Contrary to the national standards of various countries, it is difficult to increase sales without compromise; the charging efficiency will be reduced after compromise, and it is in a dilemma.<\/p>\n\n\n\n In order to change the status quo of chaotic charging interface standards, the eight major American and German manufacturers, Ford, GM, Chrysler, Audi, BMW, Mercedes-Benz, Volkswagen and Porsche, released a \u201cjoint charging system\u201d in 2012. \u201cCombined Charging System\u201d (Combined Charging System), the \u201cCCS\u201d standard.<\/p>\n\n\n\n The \u201cjoint charging system\u201d can unify all existing charging interfaces, so that four modes of single-phase AC charging, fast three-phase AC charging, household DC charging and super-speed DC charging can be completed with one interface.<\/p>\n\n\n\n In addition to SAE, which has selected the combined charging system as its standard, the European Automobile Manufacturers Association (ACEA) has also announced that it has chosen the combined charging system as the DC\/AC charging interface for use in all plug-ins sold in Europe starting in 2017. Electric electric vehicle. Since Germany and China unified the charging standards for electric vehicles last year, China has also joined the European and American camps, bringing unprecedented opportunities for the development of electric vehicles in China. Zinuo 1E, Audi A3 e-tron, BAIC E150EV, BMW i3, Denza, Volkswagen e-up, Changan Yidong EV and Smart EV all belong to the \u201cCCS\u201d standard camp.<\/p>\n\n\n\n Advantages:<\/strong> BMW, Daimler and Volkswagen, the three German automakers, will increase their investment in electric vehicles in China, and the CCS standard may be more conducive to China.<\/p>\n\n\n\n Disadvantages:<\/strong> Electric vehicles that support the \u201cCCS\u201d standard are either sold in small numbers or are just starting to be released.<\/p>\n\n\n\n In recent years, the global charging standard has gradually moved from \u201cdiversification\u201d to \u201ccentralization\u201d. However, in order to truly realize the unification of charging standards, in addition to interface standards, current communication standards are also required. The former is related to whether the connectors are matched, and the latter affects whether the plug can be powered on when it is inserted. There is still a long way to go to unify the charging standards for electric vehicles. Both car companies and governments need to further \u201copen their attitudes\u201d before electric vehicles can have a future.<\/p>\n","protected":false},"excerpt":{"rendered":" Electric vehicle (BEV) refers to a vehicle that is powered by on-board power supply and driven by a motor, and meets the requirements of road traffic and safety regulations. Due to its smaller impact on the environment than traditional cars, its prospects are widely optimistic, but the current technology is not yet mature. Working principle: battery […]<\/p>\n","protected":false},"author":1,"featured_media":210,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-208","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"yoast_head":"\n