LOKO BMS
Advanced battery management system for Li-ion batteries
The VONSCH LOKO BMS is an advanced battery management system specifically designed for the control and protection of Li-ion batteries in mining and hybrid locomotives
The system is based on the BQ79606A chip from Texas Instruments®
Typical applications
- Battery and hybrid mining locomotives
- Electric vehicles (EVs)
- Energy storage systems
Characteristics and advantages
Wide battery support
Supports Li-ion (NMC) and LFP modules in S12P01 configuration, including Samsung SDI 120 Ah/94 Ah and 1P12S-147 Ah LV01
Rich diagnostics and monitoring
Advanced fault and alarm functions with over-current, under-voltage and over-voltage detection at individual cell level.
Three voltage measuring points
Accurate voltage measurement at battery level, precharge relay and output power relay for a detailed string state.
Passive cell balancing
Integrated passive balancing unifies cell voltages, increasing usable capacity and extending battery pack life.
Parallel string cooperation
The ability to parallel individual strings enables scaling of both power and capacity to match application requirements.
Comprehensive safety
Voltage monitoring of every cell and six temperature measuring points per battery module. Optional integration of insulation resistance measurement.
Open communication
An RS-485
Convenient operation and diagnostics
Setup and diagnostics are provided by the VONSCH Drive Studio
Topology
VONSCH LOKO BMS is built on two PCB types – BMS12C
BMS12C board (slave)
Measures cell voltage and temperature, manages balancing and Daisy Chain bus communication. The board contains no firmware – it is configured from BMSM3V3 at startup.
BMSM3V3 board (master)
Serves as the control unit of a single battery string. It manages charging, discharging, balancing and diagnostics of the entire string.
General technical data
| Parameter | VONSCH LOKO BMS |
|---|---|
| BMS chip used | Texas Instruments® BQ79606A |
| Topology | BMS12C (slave, 1× per module) + BMSM3V3 (master, 1× per string) + supervisory PLC |
| Supported modules | Li-ion NMC, LFP · S12P01 configuration · Samsung SDI 120 Ah / 94 Ah · LV01 1P12S-147 Ah |
| Balancing | passive, integrated on BMS12C |
| Voltage measuring points | 3 (battery, precharge relay, output power relay) |
| Temperature measuring points | 6 per battery module |
| Protections | over-current, under-voltage, over-voltage, temperature limits, insulation resistance (optional) |
| Communication | RS-485 (standard) · PROFINET, Modbus TCP (optional) · Daisy Chain between BMS12C |
| Software | VONSCH Drive Studio · optional web interface |
| Parallel operation | yes – multiple strings in parallel |
LOKO BMS is part of the complete VONSCH traction portfolio for mining and hybrid locomotives.
Mining traction solutions