EV Vision reported that on December 2, Hyundai Motor Group held an online press conference for the new electric vehicle dedicated platform E-GMP, launching the globally competitive electric vehicle dedicated platform - E-GMP (Electric- Global Modular Platform (Electrified Global Modular Platform), following hydrogen fuel cell vehicles, also wants to ensure its leading market position in the field of pure electric vehicles.
2021 is the first year for Hyundai Motor Group to achieve a leap into electric vehicles. It plans to launch two new models of Hyundai Motor "IONIQ? 5 (IONIQ 5)" and Kia Motors "CV" (project name) Electric vehicles, and E-GMP, as a technology-intensive new platform, will become the framework structure of the new generation electric vehicle product line. At the same time, Hyundai Motor Group also released a new high-speed motor and battery system.
Albert Biermann, President of R&D of Hyundai Motor Group, said, "The electric vehicles previously launched by Hyundai Motor Group have attracted much attention due to their excellent performance. E-GMP, a global high-level dedicated platform for electric vehicles, will be launched in On the basis of ensuring the current excellent performance, we will further optimize the technological leadership of Hyundai Motor Group and fully cover it in new-level models with higher demand for driving performance.”
E-GMP: Creation. A new generation of electric vehicles
Different from current electric vehicles based on internal combustion engine platforms, the E-GMP platform, as an optimized structure, is specifically designed for electric vehicles. ?It can travel 600km on one charge (NEDC standard working condition). At the same time, it is matched with an 800V charging system and uses ultra-high-speed charging facilities. The battery can be charged to 80% in 14 minutes, which means that the era of electric vehicles that charge in 5 minutes and travel 100km is gradually becoming a reality.
In addition, unlike the internal combustion engine platform, the E-GMP platform allows for a flat floor design. The space occupied by the engine, transmission and fuel tank has been significantly reduced, innovatively improving the utilization of interior space in the car, while breaking the limitations of the traditional structure and creating a new interior and exterior design style for the car.
The E-GMP platform is modular and standardized. It can not only expand the electric vehicle product lineup in the short term according to customer needs, but also reduce the complexity of vehicle production and improve production efficiency, thereby utilizing Improve efficiency to easily reinvest.
At the same time, the E-GMP platform's structural design fully takes into account all-round application fields such as autonomous driving, high-performance EV, and V2G (Vehicle to Grid) that are about to become a reality, and is expected to expand in the future. have a positive impact on mobility market share. ?
Hyundai Motor Group plans to install a new PE system (Power Electric System) in the new generation of electric vehicles developed based on the E-GMP platform to replace the powertrain including the existing internal combustion engine. The world's first 400V/800V multi-function charging system, which is a complete system and compatible with multiple charging infrastructures, provides consumers with a further optimized and upgraded electric mobility experience. ?
Modularization + Standardization
The E-GMP platform introduces the concepts of modularization and standardization, reduces the complexity of research and development in the product planning stage, and realizes cross-model and cross-level Flexible product development. As a result, the E-GMP platform can realize the research and development of cars, CUVs, and SUVs, as well as high-performance and energy-efficient models, and can quickly launch various models that meet the diverse needs of customers.
In response to the driving experience requirements of electric vehicles with fast acceleration and strong control, the E-GMP platform can be used to create high-performance models that can accelerate from 0 to 100 kilometers in less than 3.5 seconds and have a top speed of 260km/h.
In traditional internal combustion engine vehicles, the engine occupies a larger space. In the E-GMP platform, a lightweight drive motor is installed where the engine was originally installed, and the battery is installed at the lower center of the car body, achieving a low center of gravity design and reasonable distribution of the front and rear weight of the car body, creating excellent cornering performance. and stable high-speed driving performance. In addition, the E-GMP platform is equipped with a high-speed motor, which greatly improves the driving performance; it is also equipped with a 5-link rear suspension mainly suitable for medium and large vehicles, which optimizes the ride feel and handling performance.
Ensuring safety and optimal space design
From batteries and motors to body and chassis structures, the E-GMP platform achieves optimal design for the characteristics of electric vehicles and is equipped with multiple This new technology ensures the safety of passengers and batteries.
First of all, the impact energy buffer zone in front of the vehicle will guide the deformation of all frame structures such as the body and chassis, thereby absorbing energy and mitigating the impact force; the load-bearing support area in front of the instrument panel adopts a risk-avoiding The structure minimizes the impact of PE modules and high-voltage batteries. In addition, the high-voltage battery protection zone at the lower end of the car body uses ultra-high-tensile steel to ensure safety in a collision.
As a passenger protection zone, the seating area uses an A-pillar load-bearing dispersion structure to prevent deformation; a large amount of hot stamping auxiliary materials are used at the front end and periphery of the battery; the central part of the battery casing is also firmly connected As for the car body, the overall structural design can effectively buffer impact forces.
The E-GMP platform creates innovative design and space performance that are most suitable for future electric mobility. Shortening the front and rear overhangs (the distance from the rear of the car to the center of the wheel) and lengthening the wheelbase (the distance between the front wheel and the rear axle) achieve a personalized design style; the stretched cockpit design (the driver's seat instrument panel accessory module) is expanded Passenger space. At the same time, this long wheelbase design helps improve ride comfort and driving safety.
This platform also eliminates the middle ground channel necessary for an internal combustion engine platform. The battery is installed under the center of the car body, making the ground inside the car flatter and the space inside the car extremely optimized. At the same time, the space for rear seat passengers is more spacious, and various styles of front and rear seat configurations can be created according to different models.
The new PE system most suitable for the E-GMP platform
The E-GMP platform is equipped with a new PE system (Power? Electric? System), covering new research and development for the new generation of electric vehicles Motors, reducers, inverters that control motors, and batteries.
In order to ensure a spacious interior space and reduce the weight of the vehicle body, the PE system of the E-GMP platform reduces the overall volume and weight, reduces the loss of energy transmission between various components, and improves performance and efficiency to maximum, while using an 800V high-voltage system, which greatly shortens the charging time.
First, the motor used for driving, the reducer that converts power into the torque and speed required by the vehicle, and the inverter that controls the motor torque by converting electric power are integrated. In addition, the maximum speed of the motor has been increased by 30 to 70% compared with the past, and the reduction ratio has been increased by 33%. Efficiency has been optimized through the reduction of motor size and lightweight design.
At the same time, the E-GMP platform also adopts a standardized battery system that is most suitable for special electric vehicle models, which can be flexibly matched according to the model level, driving distance and customer's lifestyle.
All vehicles developed based on the E-GMP platform will be equipped with the same standardized battery module, which is composed of the highest standard energy density battery. Based on this standardized module, users can install it according to the module number to create diversified battery pack composition models such as basic models and extended-range models.
The inverter power module of the rear wheel motor system uses silicon carbide (SiC) power semiconductors that are more efficient than existing silicon (Si). The system efficiency can be increased by 2~3%. The cruising range can be extended by about 5%, that is, it can travel longer distances with the same number of batteries.
Here is the explanation of SiC power semiconductor (Silicon? cabide, silicon carbide). It is a power semiconductor that uses high-efficiency new material silicon carbide to convert, process and control electricity. Compared with silicon (Si) power semiconductors currently widely used, they have higher stiffness and thermal conductivity and less energy loss, and are gradually becoming a new generation of power semiconductors.
The E-GMP platform comes standard with a rear-wheel drive 2WD mode, and depending on the configuration, a front-wheel motor can be added to achieve a 4WD drive mode. At the same time, for the first time, an electric vehicle is equipped with a "reducer isolation switch" (EV Transmission Disconnector, power separation device), which can separate or connect the motor and the drive shaft according to driving conditions. Through this design, the vehicle can freely switch between 2WD and 4WD drive modes, minimizing unnecessary power loss and achieving efficient driving.
For the first time in the world, it is equipped with a 400V/800V multi-functional fast charging system
In order to shorten the charging time, the E-GMP platform is equipped with a 400V/800V multi-functional fast charging system, which is suitable for 800V ultra-high voltage High-speed charging systems and other types of charging infrastructure.
At present, most of the common fast charging infrastructure at home and abroad are 50-150kW level chargers, which are mainly aimed at electric vehicles equipped with 400V charging systems. In recent years, in order to achieve fast charging, 350kW-class ultra-high-speed charging infrastructure is being continuously constructed, mainly for electric vehicles equipped with 800V high-voltage charging systems.
The E-GMP platform complies with this trend and is equipped with an 800V high-voltage charging system as standard in the design. Using ultra-high-speed charging facilities, the vehicle can be charged to 80% in 14 minutes and can travel 600km when fully charged (NEDC standard working conditions). In addition, even if it is charged for only 5 minutes, it can travel about 100km.
Most of the fast charging infrastructure currently on the market are for electric vehicles equipped with 400V charging systems. For electric vehicles currently equipped with 800V high-voltage charging systems, if you want to use these fast charging Charging infrastructure requires the installation of other components, but the E-GMP platform breaks through this limitation and is equipped with a multi-functional fast charging system that does not require the installation of other components. It can use ultra-high-speed charging facilities and existing fast charging at the same time. infrastructure.
As the world's first patented technology applied to the E-GMP platform, this multifunctional fast charging system makes full use of the vehicle's drive motor and inverter to increase the 400V voltage provided by the charging infrastructure. voltage to 800V, which is most suitable for vehicle systems, thus achieving stable charging compatibility.
Introducing 44 electrified models in 2025
Hyundai Motor Group has long invested in technology and product research and development to fully respond to the electrification era. In 2009, the first electrified model, a hybrid vehicle, was launched in South Korea; in 2010, the BlueOn electric vehicle was trial-operated; in 2015, a mass production system covering all electrified models (HEV, PHEV, EV, FCEV) was established.
With the recent rapid development of the electric vehicle market, Hyundai Motor Group plans to take the lead in strengthening electrification technology capabilities such as new electrification architecture, high-performance drive systems, and next-generation batteries, while persisting in further expanding its electric vehicle portfolio car model.
Among the 44 electrified models that Hyundai Motor Group plans to launch by 2025, there are 23 electric vehicles, including 11 special models for electric vehicles, accounting for the largest proportion; at the same time, the Group It plans to achieve the annual sales target of 1 million vehicles in the global market and become a veritable global leader in electric vehicles.
To this end, Hyundai Motor launched the pure electric vehicle brand "IONIQ" in August this year, planning to be the first to be equipped with the E-GMP platform dedicated to electric vehicles. From next year to 2024, It is the first to launch a product lineup covering three dedicated electric vehicle models: compact CUV, mid-size sedan and large SUV.
Hyundai Motor’s IONIQ product lineup (from left to right: IONIQ?6, IONIQ?7, IONIQ?5)
Kia Motors is also gradually implementing its mid- to long-term development strategy "Plan?S" is committed to innovative transformation and upgrading of mobile travel and electric vehicle business systems. Kia Motors announced in September this year that it plans to expand the proportion of electric vehicle sales to 20% by 2025, and released a schematic diagram of 7 models. These models include CV and high-performance models that Kia Motors plans to launch by 2027. Special models of electric vehicles within.
Schematic diagram of Kia Motors’ 7 dedicated electric models?
At the end of 2019, Hyundai Motor Group proposed its future development strategy—the 2025 strategy, which mainly focuses on “intelligent mobility products” and “intelligent mobility products”. The two major business structures of "Mobile Travel Services" have launched three major strategic directions, among which ensuring leadership in the field of electrification is one of the important directions. Hyundai Motor plans to increase global annual sales of battery electric vehicles and hydrogen fuel cell vehicles to 670,000 units by 2025, and continue to increase the proportion of electric vehicles in its product lineup. From 2030, in China, South Korea, the United States, and Europe and other key markets, and actively promote the electrification of new vehicles.
To achieve this strategic goal, the group will invest 61 trillion won in this strategic investment, and approximately 10 trillion won will be used to develop future technologies every year. In addition, Hyundai Motor Group is also accelerating the implementation of its electrification strategy through corporate cooperation. ?
This article comes from the author of Autohome Chejiahao and does not represent the views and positions of Autohome.