A battery management system (BMS) is any electronic system that manages a ( or ) by facilitating the safe usage and a long life of the battery in practical scenarios while monitoring and estimating its various states (such as and ), calculating secondary data, reporting that data, controlling its environment, authenticating or it. Protection circuit module (PCM) is a simpler alternative to BMS. A.
[pdf] A battery management system (BMS) is one of the core components in electric vehicles (EVs). It is used to monitor and manage a battery system (or pack) in EVs. This chapter focuses on the composition and typical hardware of BMSs and their representative commercial products.
There are five main functions in terms of hardware implementation in BMSs for EVs: battery parameter acquisition; battery system balancing; battery information management; battery thermal management; and battery charge control.
Beyond tracking the SoC and SoH, a battery management system ensures the cells wear out evenly by distributing the charge and discharge cycles, thus ensuring a longer total lifespan. It also provides safety features, like disconnecting the battery to prevent a fire in case of a fault or switching to a different cell or pack when one fails.
What is a safe BMS?
BMS reacts with external events, as well with as an internal event. It is used to improve the battery performance with proper safety measures within a system. Therefore, a safe BMS is the prerequisite for operating an electrical system. This report analyzes the details of BMS for electric transportation and large-scale (stationary) energy storage.
One way to figure out the battery management system's monitoring parameters like state of charge (SoC), state of health (SoH), remaining useful life (RUL), state of function (SoF), state of performance (SoP), state of energy (SoE), state of safety (SoS), and state of temperature (SoT) as shown in Fig. 11 . Fig. 11.
Battery management systems must execute accurate monitoring of single cells to ensure the right balance among them. High-end batteries may feature BLE connectivity and security features. ST offers a broad range of 32-bit STM32 microcontrollers including ultra-low power MCUs that are ideal for the BMS applications.