TU-TESL

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Under the trend that the whole automobile industry has stepped into the new four modernizations in an all-round way, electrification is the earliest and most popular. When it comes to electric vehicles, it seems that we are still stuck in the impression of Japanese brands, but in fact, the field of electric vehicles has already taken on a blooming situation. Especially in Europe and America, which we usually don't pay much attention to, automobile group is also pushing forward its new energy strategy step by step, especially in recent years, the rapid release of new energy products in the global and domestic market. 2019 is a product year for Beijing Hyundai, especially in the field of new energy. After the new model in August last year, in August this year, Beijing Hyundai launched the leading plug-in hybrid electric, followed by the onsino pure electric just launched in November. If the first quarter of 2020 is about to come, then this is the most intensive time for Beijing Hyundai to release new energy products. In fact, Hyundai Motor Group is the first car company in the world to spread the whole new energy power type all over the product line. Since the earliest 1997, Hyundai has started the research and development and promotion of new energy power. Until 2010, it officially launched mass production models to the market, and completed the coverage of plug-in hybrid, pure electric and hydrogen energy power in 2015. Yes, hydrogen energy is still a very important new energy branch of Hyundai Group. It has been developing and applying continuously and has its own unique technology. According to the plan, after the introduction of two electric vehicles this year, Beijing Hyundai will continue to make efforts in the new energy market. In the future, it will realize the three routes of HEV, PHEV and EV, and fully cover the compact car, medium-sized car, small and other segments of the market. The reason why Beijing Hyundai dares to promote its electric vehicle products in such a large scale next time is that in addition to the driving force of market policies, the most fundamental reason is that it has the most core three electric system and other technical advantages of electric system. Moreover, Hyundai is developing a new pure electric vehicle platform, which will be applied to its small and medium-sized high-end pure electric vehicles in the future, and is committed to improving the energy efficiency conversion rate and system reliability of electric vehicles. So how to measure the core technology of an electric vehicle? We just mentioned a concept - three electric system, which can be used as a measure to some extent. "Three electrics" refers to the electric drive, electric control, such as the driving mechanism, motor and inverter of electric vehicle, which are related to the drive. There are electric cores, packages and mold structures related to the battery. The electric control is equivalent to the vehicle controller on the traditional vehicle, which coordinates and manages the work of each system. These three systems for electric vehicles, like the traditional fuel vehicles we commonly known as the "three pieces", fundamentally determine whether the performance of electric vehicles is excellent, whether the experience is good, whether the car is convenient. Therefore, only by taking advantage of these three systems can we truly grasp the lifeblood of an electric vehicle and let it have the core competitiveness, which is also the main technology R & D core of various vehicle enterprises for so many years. At present, the power batteries of electric vehicles are mainly provided by the suppliers. The mainstream battery core materials have been developed from NIMH and lead-acid in the past to the lithium ion batteries with more flexible packaging and higher energy density. As the main development direction in recent years, especially the cylindrical NCM material 3 yuan lithium battery is widely used with the use. The battery capacity is basically in the range of 50-100kwh according to the different product positioning. In the aspect of electric drive, except for a few multi gear reducers, the vast majority of electric vehicles use single-stage reducers, and there is not much difference. The main motor technologies of electric vehicles mainly use permanent magnet synchronous motor and induction asynchronous motor, which have the advantages of small size, high efficiency, strong reliability, high power and so on. Each family makes its own selection and combination according to the positioning of their products. So how to calculate a good three electricity system? Electric drive and battery can rely on the hardware support of suppliers. How to make these hardware work together through electronic control system is the key. In other words, the current relatively successful pure electric products, in addition to the mainstream configuration of the motor and battery pack, the core electronic control system and more and more important battery management system, can make the product force and competitive products open the gap, and also more reflect the research and development capabilities of the vehicle enterprises. All in all, as long as it can meet the product's own positioning and meet the needs of the target consumers, it is a good three electricity system. And just after we analyzed the three power system, we found that the modern automobile, which has been quietly cultivating, has become the most leading automobile enterprise in the world. There are many bright spots, which should not be ignored. For example, in the latest energy efficiency ranking released by the US EPA, the top one is the modern 2017 IONIQ pure electric version, a large part of which is ahead of the second in comprehensive economy. Kona EV, which also achieved success, was introduced by Beijing Hyundai as its first pure electric vehicle, and officially launched in November, bringing the advantages of Hyundai in pure electric products and three electric technologies to China. The target consumers of oncino pure electric are the urban people in the first tier (limited purchase) cities. They are mainly urban commuters, have a certain economic foundation, and are willing to embrace new technology it and white-collar workers. Therefore, oncino pure electric uses a more efficient combination of permanent magnet synchronous motor and high-performance ternary lithium battery, which is also very consistent with the current trend and law of electric vehicle design and matching. The capacity of battery pack is 64.2kwh, which is not high at first glance, but thanks to the technology of Ningde era, the battery pack adopts water circulation cooling system. Compared with most of the competitors using air cooling system, the oncino pure electric can effectively ensure that the power battery is always at an efficient working temperature. Therefore, under the comprehensive working condition of NEDC, the range of onsino pure electric vehicle can reach 500km, and it is equipped with the function of energy recovery and intelligent driving mode, which is far superior to other joint venture pure electric vehicles. So in the case of lighter battery pack, it still has enough excellent endurance performance. Moreover, the em15 three in one electric drive system and the high-voltage electric drive system provided by continental group are adopted as the main killer of oncino pure electric. The maximum output power can reach 150KW and the peak torque can reach 310nm. The system is composed of three important core parts: motor, frequency converter and reducer. The weight is only 76.9kg. It has smaller volume, lighter weight, less oil and electricity pipelines and higher safety. It can also adapt to more flexible body layout. These values are more obvious in electric vehicles, and the reduced weight can further improve the endurance mileage. In addition, the modern automobile also makes the additional guarantee in the EV system security. In the early stage of research and development, many battery limit tests and high-efficiency temperature tests have been carried out, such as extrusion, dropping, burning, soaking, puncture (at present, the forced puncture experiment has been cancelled in China). Moreover, the battery pack adopts the ceramic diaphragm coating process design, which avoids the short circuit caused by the runaway point of the battery through the excellent thermal insulation performance of ceramic particles, and adopts the high-voltage wiring module and the fuse breaking protection design on the circuit to avoid the hidden danger of fire under the state of charging. The modern automobile started very early in the field of new energy. Behind this comeback is the confidence in pure electric technology and market. As the first pure electric SUV in the domestic market, Beijing Hyundai oncino pure electric, with its advantages of high efficiency, low energy consumption, light weight and excellent structure, is targeting the entire joint venture pure electric SUV market. This marks the strength of modern automobile in the domestic new energy market, and hopes to gain market advantage with its three electric technologies, and to improve the brand awareness of the whole modern automobile.