Automotive battery management solutions are based on battery type. For lead acid batteries, an intelligent sensor combines the requirements of accurate measurement sensing with logic capability to bring decision making to the sensing solution. Current and future electrified cars will operate with higher voltage (28 to 450 volts) and are based on Li-Ion technology. Several technical aspects need to be considered since battery management systems require different levels of control for:

• Right cell balancing
• Isolation between the set of cells and the cluster
• Communication between each cluster
• Safe control of the chemistry
• Processing the algorithm optimizes battery lifetime and reliability

Target Applications

• Battery State of Charge (SoC)
• Battery State of Health (SoH)
• Low and High-voltage Battery Monitoring
• Voltage/Current/Temperature Sensor

View Automotive Battery Monitoring Solutions by Freescale