The World New Energy Vehicle Congress (WNEVC) released its selection of Top Global NEV Cutting-edge and Innovative Technologies in Boao, south China’s Hainan province, on July 2.
The selection was carried out by WNEVC’s 31-member Science and Technology Committee, which defines “Innovative Technology” as a novel approach allowing existing application(s) to solve technical difficulties and bottlenecks in the key areas of NEVs. These must already have industrial application(s) with product(s) in volume production.
It defines “Cutting-edge Technology” as a forward-looking, pioneering, and exploratory technology that has a high potential to become an important fundamental technology in the future NEV product development and the industry’s transformation and upgrading.
The selection process started in March and received 96 entries for “Innovative Technology” and 54 for “Cutting-edge Technology.”
The eight innovative technologies and eight cutting-edge technologies finally making WNEVC’s 2019 list are as follows.
5G&C-V2X IoV Connectivity Technology of Huawei Technology Co., Ltd.
5G+C-V2X IoV communication technology developed by Huawei enables the development of intelligent connected cars in the 5G era. The 5G high-throughput and low-latency features can support smart cars to obtain road data such as high-precision maps faster; C-V2X can support direct communication between vehicles and infrastructure, other vehicles, weak traffic participants, etc. The technology is implemented on self-developed 5G automotive communication modules MH5000 and 5G chipset Balong5000. It is world’s first 5G chipset to support C-V2X IoV technology.
High power density stack design technology of Toyota Motor Corporation
The Toyota MIRAI is the world’s first mass-produced fuel cell vehicle, which uses a fuel cell power density of 3.1kW/L., representing the highest level in the world. MIRAI uses PtCo alloy and the catalytic activity was increased by 80%. Reduces the size of the fuel cell stack and improves the size and weight of the fuel cell through advanced stack structure and control means. Compared to the previous version, the MIRAI stack current density is increased by 1.4 times.
High Energy Density and Fast Charging Technology for Lithium Ion Power Battery of Contemporary Amperex Technology Co., Limited
In this technology, graphite negative electrode material is used to produce fast charging batteries, which utilizes channel optimization and “fast ion ring” technology, and creates a high-speed channel on the surface of graphite, thereby greatly increases the intercalation speed of lithium ions in the graphite negative electrode. It can achieve 80% SOC in 10~12 minutes, With modulating the designing parameters such as capacity excess coefficient and crystal orientation of the positive and negative electrode plates, and applying the mechanical design of battery unit, the battery management system and the thermal management system at the same time, it optimally matches the chemical system and battery design parameters, and the system with graphite achieves fast charge while preserving properties such as high energy density and long life.
E-Motor Controller based on SiC MOSFET of Tesla Inc.
Motor control technology is the key to high-performance drivetrain design. Tesla developed and produced a high-power motor controller based on SiC MOSFET which has the characteristics of high switching frequency, high thermal endurance and low losses. This technology makes the motor more compact and lighter further, and thus reduces vehicle cycle energy consumption and increases the mileage of a single charge. It is already used in mass production for Tesla Model 3 all-electric vehicles.
NISSAN e-POWER: 100% Electric Generation by Engine, 100% Electric Motor Drive
NISSAN e-POWER technology achieves a better fuel economy by utilizing the BEV control tech. & parts tech., changing the specifications & settings of E/G for power generation, and optimizing the battery capacity & power as well as power generation control strategy. e-POWER employs a technology that the drive system is completely separated from the E/G. With no need to consider the running cycles, the best fuel economy operating point of E/G can be selected.
Expanded Polytetrafluoroethylene (ePTFE) Reinforced Ultra-thin Proton Exchange Membrane of W.L. Gore & Associates., Inc.
Currently reinforced ultra-thin proton exchange membranes have been adopted by all mass produced FCV models. ePTFE reinforced ultra-thin proton exchange membrane of W.L. Gore & Associates., Inc., characterized by the unique membrane reinforcement, ionomer and additives’ selection and advanced manufacture technologies, has achieved the best balance of performance, durability and total cost ownership. It is believed it will be a dominant technology utilized in the mass commercialization of FCVs.
Key Technology of High-Efficiency and High-Power Wheel Motor Drive System of BYD Auto Industry Company Limited
The key technology of high-efficiency and high-power wheel motor drive system of BYD Auto, including the advanced and innovative technologies of highly integrating motor and driving axle, directly cooling the motor core, distributed precision control and multiplexing and fusion based on IGBT, contributes to solve the technological difficulty of achieving full size low floor on buses, which is firstly invented in China and has been widely applied on the 100% electric city buses.
eDrive Technology of BMW AG
Highly-integrated eDrive technology developed by BMW AG has an extremely compact design. Electric motor, transmission and power electronics are highly integrated into a single housing. Thanks to the modular design system of electric powertrain components, which enable to produce both electric motors and high-voltage batteries of various sizes, performances and structural shape. It could be equipped with different drive system variants, including plug-in hybrid drive system or battery-electric solution. This fresh package of technology brings considerable advances in terms of performance characteristics, operating range, weight, packaging space and flexibility.