EV BMS Blog

A practical, engineering-focused blog on EV batteries, BMS algorithms, safety architecture, and vehicle interfaces.

Start Here

• Series Overview
• Equivalent Circuit Model (ECM)

Topic Index

Battery

• Cell
• Battery Pack and Module Architecture
• Cooling and Thermal Management

BMS Concepts

• OCV vs Terminal Voltage
• State of Charge (SOC)
• State of Health (SOH)
• State of Power (SOP)
• Analog Front End (AFE)
• Cell Balancing
• Charging Algorithm
• Deep Discharge Protection
• Ignition Handling
• Thermal Runaway Detection
• Error Handling and Fault Reporting
• HV Safety Architecture
• Battery Paralleling
• BMS During a Drive

Interfaces

• Communication Interface Overview
• CAN
• RS-485 and RS-232

EV

• EV Nodes
• Why Range Drops in Winter