BG22A1 Bluetooth Module Empowers BMS Industry| RFSTARIOT.com

What Is Automotive Battery Management System(BMS)?

With the recent implementation of government regulations aimed at reducing CO2 emissions to combat climate change, the global electric vehicle industry is expected to witness significant growth in the coming years. According to Bloomberg New Energy Finance, annual electric vehicle shipments worldwide are projected to reach 30 million by 2030, and 60 million by 2040.

At the core of an electric vehicle lies its battery pack, which is a complex assembly comprising multiple modules, each consisting of hundreds of battery cells. In total, a battery pack may contain thousands of cells.

The Battery Management System (BMS) serves as the "brain" of an electric vehicle's battery pack. It is a vital component of the vehicle responsible for ensuring its safe and efficient operation, with its performance having a significant impact on the EV's driving range and battery life. The primary function of a BMS is to manage the health, performance, and safety of the battery, making it a critical component for the successful operation of an electric vehicle.

Various wireless solutions are being considered for the implementation of wireless BMS. While some of them are proprietary and designed specifically for the wireless BMS use case, opting for a standard solution like Bluetooth comes with significant advantages.

What Are Advantages of Wireless BMS Embedded Bluetooth Modules?

Here are the reasons why Bluetooth LE module is suitable for wireless BMS:

1. High throughput: With a data rate of over one megabit per second, Bluetooth far exceeds the rates offered by many proprietary alternatives. This ability to transfer large amounts of data quickly is especially crucial for BMS, as a significant amount of information must be sent to the central processing unit, which scales with the number of battery modules. In addition, the high data rate of Bluetooth also results in lower latency, which is essential for ensuring the safety of the system.

2. Reliable connectivity: Bluetooth technology is known for its ability to provide reliable data transmission even in noisy environments. This makes it a suitable option for wireless BMS, which typically involves several battery modules communicating with a central unit using Bluetooth technology.

3. Secured Connection: In addition to its other advantages, Bluetooth technology provides a highly secured connection for wireless BMS. This is achieved through encryption and authentication mechanisms that prevent unauthorized access, ensuring the safety of the vehicle and its occupants.

4. Low-power consumption: Bluetooth technology, specifically Bluetooth LE, is known for its low-power consumption, making it an ideal wireless communication protocol for BMS. Additionally, when using Bluetooth LE with PAwR (Passive Advertisement with Reply), the central unit periodically sends advertising packets, and observers only listen during these advertising events and can go to sleep in between. They only send a response when requested, making the process power-efficient, particularly for battery-powered devices like EVs.

5. Low cost: Bluetooth Low Energy (BLE) chips from major vendors are being widely used in various applications, resulting in a low selling price due to economies of scale and highly amortized development costs. These BLE modules are less expensive than proprietary wireless modules that have been specifically designed for wireless Battery Management Systems (BMS).

RF-star’s RF-BM-BG22A1 based on EFR32BG22 chip of Silicon Labs is a Bluetooth Low Energy module with the best-in-class ultra-low power consumption, compact size, reliable connectivity and a wide range of analog and digital interfaces is highly recognized in the automotive field, like BMS.

If you are looking for more information about the EFR32BG22 modules, please kindly visit www.rfstariot.com.

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BG22A1 Bluetooth Module Empowers BMS Industry