Do battery management systems follow a safety oriented design?

Battery management systems are protection systems and, therefore, they shall follow a safety-oriented design. In this framework, a review of the safety requirements and the methods applied in BMS design is proposed, which are supported by functional safety standards together with battery safety standards.

What is a special focus in battery design?

Special focus is set on the optimization process. In addition, the resulting cost and weight distributions will be validated with data from the literature. Section 3.2 analyzes cell format differences and emphasizes their effects on the overall design of battery systems. In Section 3.3, general design space decisions and principles are discussed.

How a battery protection device should be sized?

A protection device must be sized properly so that the energy flowing from the batteries during the failure will not cause damage to the batteries or other components along the short circuit path. The protection must clear the fault in less than 100 milliseconds. The impedance of the line is mainly resistance and inductance.

What is a battery management system (BMS)?

Among them, the battery management system (BMS) is the electronic control unit responsible for the continuous monitoring and protection of the battery during operation to avoid any electrical and thermal misuse. The BMS must be reliable and safe, although this has not always been the case [2, 3, 4].

What are the literature findings based on a battery system?

Literature findings are used to validate the overall optimized cost distributions. Generally, very few analyses of total costs or weight shares at the component level for entire battery systems are described in the literature. One bigger compilation is given by Lutsey et al. in .

What is the generalized architecture of proposed battery management system (BMS)?

The generalized architecture of Proposed BMS design is shown in Fig. 9 (a)- (b). In proposed design, battery management systems (BMS) employ LTC6812 analogue front end (AFE) IC to monitor and regulate battery cell conditions. AFE has cell voltage sensor and external balancing circuitry MOSFET driving connections.