-generation mobile industry. Under the premise of “Software-Defined Vehicles” (SDV), MIH has planned a total of 14 working groups. To solve the curiosity of the outside world regarding the technical projects and progress that each working group is responsible for, and also help members to understand each other better, MIH will introduce a working group in-depth every month starting from the May monthly issue and share the research content, technology, and market trends in the field with the outside world. This time, we continue the popular topics of Earth Day and green living and take the lead with the “Energy Management” working group. With the rise of the electric vehicle market, governments around the world are paying more and more attention to the issues of sustainability and environmental sustainability. Corresponding regulations and incentive policies are promoting the substantial growth of electric vehicle energy management technology and demand. Below, MIH Technical Development Advisor Eric Huang shares with you the projects and directions that the Energy Management Working Group has launched.
At this stage, the MIH Energy Management Working Group is actively involved in three areas: Batteries, Open Battery Management System (Open BMS), and Power Grid. As we all know, the battery is one of the key components of an electric vehicle. Simply put, the software that controls these series-connected battery packs is the BMS, which is designed to manage and optimize the use of the battery system to optimize the use of electric vehicles for meeting the needs of users. Moreover, electric vehicles with many built-in batteries are no longer just “vehicles”, but also “carriers” for energy storage. Therefore, the focus of discussion in the field of power grids is to return the energy stored in electric vehicles to the grid when necessary. Also known as “Vehicle-To-Grid” (V2G).
Open BMS defines a communication interface, aiming to create a unified specification
At present, it can be said that a hundred schools of thought contend in the field of BMS. There are startups, automobiles, batteries, and semiconductor companies everywhere. Each company has its own system, which is also a big challenge. Just like in the past, different computer and mobile phone brands had different charging specifications for their products, but now the charging specifications for PCs and mobile phones have been unified into one or two types. Therefore, the MIH Energy Management Working Group is working with foreign partners to create MIH’s open standard BMS system by working with partners to define architecture and communication interfaces.
In addition to the above-mentioned goal of creating a unified specification, the Open BMS planned by the MIH Energy Management Working Group also has a different focus from most BMS systems, which is to integrate external road condition information and user driving habits and other information. The traditional BMS method is to estimate the predicted value of the available power according to the current battery condition, but the MIH Energy Management Working Group also uses the external road condition information, such as the ups and downs of the road, and matches the user’s driving habits, For example, drivers may like to press the accelerator hard or drive mildly. After integrating these important information, the prediction and optimization benefits of BMS can be improved, so that electric vehicle users can get a better experience.
Integration of renewable energy, energy storage and charging infrastructure
The power grid is also the focus of the development of the MIH Energy Management Working Group. Clean energy from solar and wind energy is increasingly being integrated into the grid by power companies around the world. The policies of various countries in the world also tend towards renewable energy, but the electricity generated by renewable energy can only be wasted if it is not effectively stored. Therefore, it has become a global consensus to match renewable energy with energy storage systems, and electric vehicles may also be transformed into energy storage devices. When the electric vehicle is not in use, the power can be sent back to the power service company in a timely manner to achieve the optimization of the power grid. For example, when a power outage occurs suddenly, your electric vehicle can provide power to cope with the inconvenience caused by the short-term power outage. Such V2G applications have great possibilities and development space in the future.
MIH and Taiwan Electric Power Company (Taipower) will start V2G demonstration application cooperation in 2021. In the future, it can be extended to connect to Taipower’s power trading platform. Therefore, the MIH Alliance is defining relevant standards such as energy storage systems and charging piles. We can expect that through the technologies developed by MIH and partners, three goals can be gradually achieved: to enhance the development of the electric vehicle industry, and more importantly, to reduce the burden and impact on the power grid caused by the popularization of electric vehicles, and when the power grid is insufficient, the energy storage of electric vehicles can be used as a backup power source.
Whether it is the improvement of electric vehicle battery technology, the development of Open BMS or power grid-related applications, it is a crucial part of the development of the new generation of electric vehicles. The MIH Energy Management Working Group hopes to increase battery capacity, reduce battery cost, effectively store energy, and popularize charging pile infrastructure through technology development. We are excited about moving towards a new green future, and sincerely hope to invite more partners, whether they are battery cell manufacturers, battery module manufacturers, and energy storage equipment manufacturers, to join our working group to transform the automotive industry and realize the vision of an open EV platform.