Simply put, E-GMP, like i-GMP, is the cornerstone for Hyundai Group to realize the leap of 202 1 electric vehicles. Hyundai "IONIQ5" and Kia "CV" written on the schedule will be the first models of the E-GMP platform. Different from the current electric vehicle from the internal combustion engine platform, the E-GMP platform is specially designed for electric vehicles, which can realize flat floor design. The space occupied by engine, transmission and fuel tank is greatly reduced, which innovatively improves the utilization rate of interior space, breaks the limitation of traditional structure and creates a brand-new design style of interior and exterior decoration of automobile.
In the structural design, E-GMP also fully takes into account unmanned driving, high-performance EV, V2G (vehicles? Where to? Grid) and other all-round application fields are expected to play a positive role in expanding the market share of mobile travel in the future. Of course, as a platform born in the new century, E-GMP platform also has the characteristics of modularization and standardization, which can not only expand the lineup of electric vehicles in a short time according to the needs of customers, but also reduce the complexity of vehicle production and improve production efficiency.
The most striking thing about the E-GMP platform displayed this time should be its excellent fast charging ability. The battery can be charged to 80% in 5 minutes, with a cruising range of 100km and a cruising range of 600KM, which greatly relieves the traditional pain point of electric vehicles-charging rate. The 400V/800V ultra-high voltage charging system installed for the first time in the world is the key to achieve this proud goal.
However, the fast charging infrastructure widely used in the market at present is mostly aimed at electric vehicles equipped with 400V charging system. For electric vehicles equipped with 800V high-voltage charging system at present, if these fast charging infrastructures are to be used, other components need to be installed. The greatness of E-GMP platform is that it breaks through this limitation and is equipped with a multifunctional fast charging system without installing other components, which can use ultra-high-speed charging facilities and existing fast charging infrastructure at the same time. As the world's first patented technology that should be applied to the E-GMP platform, the multifunctional fast charging system makes full use of the driving motor and inverter of the vehicle to boost the 400V voltage provided by the charging infrastructure to the 800V voltage most suitable for the vehicle system, thus achieving stable charging compatibility.
For electric vehicles, besides working hard on charging speed and battery capacity, it is also important to know how to reduce the loss. On the other hand, the E-GMP platform has played a new trick in the matter of "throttling". Engineers of Hyundai Group added a set of clutch between the traction motor and the output shaft of the E-GMP platform, which can realize the real front/rear/four-wheel drive switching, and the motor that does not work in the two-wheel drive state does not need to be driven to rotate, thus reducing the resistance.
More than that, in order to ensure the spacious interior space and reduce the weight of the car body, the PE system of E-GMP platform reduces the overall volume and weight, reduces the energy transmission loss between parts, maximizes performance and efficiency, and integrates the motor, reducer and inverter. In addition, the maximum speed of the motor is increased by 30~70%, and the reduction ratio is increased by 33%. Efficiency optimization is achieved by reducing motor size and lightweight design.
The E-GMP platform also adopts a standardized battery system that is most suitable for special vehicles for electric vehicles, which can be flexibly matched according to vehicle types, driving distances and customer lifestyles. All vehicles developed based on E-GMP platform will be equipped with the same standardized battery module, which is composed of batteries with the highest standard energy density. On the basis of this standardized module, users can create diversified battery pack composition modes such as basic model and battery life model according to the number of modules.
Silicon carbide (SiC) power semiconductor is used in the inverter power module of the rear wheel motor system, which is more efficient than the existing silicon (Si). The system efficiency can be improved by 2~3%, and the cruising range can be extended by about 5%, that is, it can run for a longer time with the same battery quantity.
Open the grand planning book of Hyundai Group, and you will understand that this Korean giant is really not joking. Among the 44 electric vehicles that Hyundai Group plans to launch by 2025, there are 23 electric vehicles, of which 1 1 is the special vehicle for electric vehicles, accounting for the largest proportion; At the same time, the Group plans to achieve the goal of annual sales of 6.5438+0 million vehicles in the global market and become a veritable global leader in electric vehicles. From next year to 2024, Hyundai Motor will be the first to launch a product lineup covering three types of electric vehicles: compact CUV, medium-sized car and large SUV.
Kia, a subsidiary of Hyundai Group, is also gradually practicing the medium and long-term development strategy "Plan"? S "is committed to the innovation, transformation and upgrading of mobile travel and electric vehicle business system. Kia Motors announced in September this year that it plans to increase the proportion of electric vehicle sales to 20% by 2025, and released schematic diagrams of seven models, including CV and high-performance models that Kia Motors plans to launch one after another by 2027. Koreans have also begun to get serious, and the new force in the field of electric vehicles has appeared with the release of the E-GMP platform.
This article comes from car home, the author of the car manufacturer, and does not represent car home's position.