BMW Battery

BMW i3 battery rack system integration.

Overview

This bundle provides integration with BMW i3 battery with proprietary BMS interface. This integration enables monitoring and control of charge/discharge operations, state machine management, and integration with OpenEMS for demand response and energy optimization.

The battery communicates via Modbus protocol for standard industrial integration and includes HTTP-based authentication for secure device access.

Components

Battery BMW

Name: Battery BMW

Factory-PID: Battery.BMW

Implemented Natures/Interfaces

  • Battery - Standard battery interface for monitoring and control

  • ModbusComponent - Modbus protocol integration

  • StartStoppable - Start/stop lifecycle management

  • ModbusSlave - Slave device functionality

  • EventHandler - Cycle event handling

  • BatteryBmw - BMW specific interface

Description: Main component for BMW battery system integration. Communicates via Modbus to read battery status and control charging/discharging operations. Includes HTTP-based token authentication for secure device access and state machine management for safe operation. Monitors state-of-charge with configurable limits and supports both grid-connected and island operation modes.

Configuration:

  • id (String): Unique component identifier; default: "battery0"

  • alias (String): Human-readable name; default: same as id

  • enabled (Boolean): Enable/disable this component; default: true

  • startStop (StartStopConfig): Start/stop behavior (AUTO, START, STOP); default: AUTO

  • modbus_id (String): ID of Modbus bridge; default: "modbus0"

  • modbusUnitId (Integer): Modbus device Unit-ID; required, no default

Source Code