With the rapid development of battery technology, the demand for intelligent, efficient and wireless battery management systems (BMS) is increasing day by day. This solution aims to propose a BMS solution based on low-power Bluetooth technology, aiming to improve the flexibility, real-time, economy and safety of battery management in various fields.
1. Program background
Traditional BMS mostly uses wired connection, which has problems such as complex wiring, high cost, and difficult maintenance. With the maturity and popularization of Bluetooth technology, its low power consumption, high reliability, and easy deployment have provided new ideas for the wirelessization of BMS. Realizing wireless communication between BMS and other systems (handheld terminals, central control units, etc.) through Bluetooth technology can significantly optimize the system structure and improve overall performance.
2. Solution Overview
This solution integrates a low-power Bluetooth (BLE) module on each battery for data transmission, and is connected to sensors on the battery such as temperature sensor, power, current and other sensors, so that the status of the battery can be understood in real time. The BMS main control unit integrates a Bluetooth module and is responsible for collecting data (such as temperature, voltage,current, etc.) from each unit of the battery pack and performing preliminary processing. The Bluetooth module replaces the complicated wiring. When replacing the battery device, there is no need to rewire the device, making the change faster and more convenient.
3. Features of the solution
1. Simplify the system structure: remove complex wiring and reduce system weight and cost.
2. Enhance flexibility: facilitate the installation, maintenance and upgrade of BMS, support the use of different capacities, different voltages and different types of batteries.
3. Convenient replacement: When the battery of some equipment needs to be replaced, there is no need to disassemble and assemble the wiring harness. You only need to install the battery and adapt the communication module.
4. Improve safety: Reduce safety hazards caused by wiring problems, no need to worry about system damage caused by incorrect wiring, and improve fault diagnosis and response speed.
5. Extend the cruising range: In some vehicle application scenarios, reducing the weight of the BMS can improve the vehicle's cruising range to a certain extent.
6. Data encryption: Use Bluetooth security protocol to encrypt data for transmission to ensure security during data transmission.
7. Edge computing: Integrate a certain amount of computing power into the BMS main control unit to perform preliminary processing on the collected data and reduce the burden on the central processor.
8. Redundant design: Use redundant design on key components to improve the reliability and stability of the system.
4. Solution implementation
This solution uses the HY-2340 series Bluetooth module as the communication module, and has accumulated a wealth of cases in various major application fields, including but not limited to new energy vehicle power batteries, electric bicycle batteries, UPS, outdoor batteries, etc. For example, a new energy vehicle power battery BMS and a certain brand express battery replacement BMS have been running stably, and have saved costs for merchants in the management and maintenance of the project. To sum up, the BMS solution based on Bluetooth technology brings a new solution to electric vehicle battery management, which will significantly improve the performance, flexibility and safety of the system.
