Abstract: Devices and systems are provided that incorporate fusible links within the electrical traces of a battery module voltage sensing circuit. The fusible links can be integrally formed in an electric trace and provide an overcurrent protection feature for the circuit without requiring fuse elements or components that are separate from the electrical trace. Each of these fusible links include a substantially flat controlled cross-sectional area disposed along a length of the material making up the electrical trace. In an overcurrent situation, the connection between a battery management system and a battery cell may be severed by the overcurrent melting the fusible link. The electrical traces may be spaced apart from one another in the circuit such that an overcurrent situation breaking the connection between one cell and the battery management system would not affect adjacent electrical traces not having an overcurrent situation.

Abstract: Devices and systems are provided that incorporate fusible links within the electrical traces of a battery module voltage sensing circuit. The fusible links can be integrally formed in an electric trace and provide an overcurrent protection feature for the circuit without requiring fuse elements or components that are separate from the electrical trace. Each of these fusible links include a substantially flat controlled cross-sectional area disposed along a length of the material making up the electrical trace. In an overcurrent situation, the connection between a battery management system and a battery cell may be severed by the overcurrent melting the fusible link. The electrical traces may be spaced apart from one another in the circuit such that an overcurrent situation breaking the connection between one cell and the battery management system would not affect adjacent electrical traces not having an overcurrent situation.

Abstract: Systems of an electrical vehicle and the operations thereof are provided. High-voltage interlock (HVIL) determines if a high-voltage system, such as a power source (e.g., vehicle battery), a load (e.g., vehicle motor), and conductors therebetween, have been properly connected. If not, battery contactor is not allowed to be closed or, if already closed, opened. A redundant HVIL system is provided to mitigate the false positives associated with an HVIL component failure.

Abstract: Systems of an electrical vehicle and the operations thereof are provided. High-voltage interlock (HVIL) determines if a high-voltage system, such as a power source (e.g., vehicle battery), a load (e.g., vehicle motor), and conductors therebetween, have been properly connected. If not, battery contactor is not allowed to be closed or, if already closed, opened. A redundant HVIL system is provided to mitigate the false positives associated with an HVIL component failure.