INPUT
Second-life battery pack
CMU, cell, sensor, and PRA data
Master Battery Management System
M-BMS
A board connected inside the pack
to collect and control data
to collect and control data
Fits the existing BMS location and collects cell/pack voltage, temperature, and sensor data.
Controls PRA and cell balancing, and links to BCMS in real time.
Internal data collectionPRA and relay controlCell balancingVehicle-specific interfaceBCMS linkage
SIZE
189.5 × 94 mm
THICK
2.35 mm
COMM
UART
LINK
BCMS
01 · Characteristics
Direct interface matched to pack structure
Existing BMS location · no cell/module teardown / bidirectional data and control · BCMS linkage
Fits existing BMS location
Mounts on pack-specific BMU connector and PIN MAP / matches vehicle communication specs.
PACK MATCHING
Connection without disassembly
Links CMU, sensors, and PRA directly / obtains internal data without tearing down cells or modules.
DIRECT INTERFACE
Bidirectional data and control
Collects status and handles control commands / links PRA, balancing, and protection.
READ & CONTROL
Real-time BCMS linkage
Passes battery status, events, and control results / links diagnosis, alerts, and history.
BCMS LINKAGE
02 · Key Functions
From data collection to pack control
Single-board M-BMS / collection, control, and data handling in one
Data collection
- Cell and pack voltage
- Module and pack temperature
- Current and internal sensor status
- PRA and relay status
- Balancing status and history
- Event and fault information
Function control
- Cell balancing
- PRA and power relay
- Water pump and cooling
- Protection and cut-off signals
- Charge/discharge equipment link
- Control-result return
Data handling
- Vehicle protocol mapping
- Data-format conversion
- Min-Max extraction
- Control-result logging
- Event and error logs
- Real-time transfer to BCMS
03 · Integration
Control interface between battery pack and BCMS
Collect pack internals and connect BCMS diagnosis, alerts, control, and history management.
Internal status data
INTERFACE
M-BMS
Protocol decode, data conversion, function control
Status/event transferControl command response
CONTROL & DIAGNOSIS
BCMS
Diagnosis, alerts, control, and history
Screen/reportServer link
OPERATION
Monitoring · server
Field screen, remote data, external system link
INPUT
Battery pack input
- Cell/pack voltage
- CMU data
- Sensor information
- Module/pack temperature
- PRA status
- Balancing status
PROCESS
M-BMS processing
- Protocol decode
- Control command delivery
- Event generation
- Data conversion
- Control result logging
- Communication check
OUTPUT
BCMS output
- Live status data
- Event/error information
- Operations screen data
- Control execution results
- Balancing history
- Report-linked data
04 · Specifications
Board size and linkage criteria
PCB Thickness 2.35 mm · 189.5 × 94 mm
| Form factor | Board-type battery-pack interface |
|---|---|
| PCB size | 189.5 × 94 mm |
| Board thickness | 2.35 mm |
| Main inputs | CMU, cell, sensor, PIN, balancing status |
| Main outputs | Battery status, control results, events, BCMS data |
| Communication | 4-wired UART pack communication and BCMS link |
| Application | Pack-specific connector, PIN MAP, and protocol |
Communication specs and supported channels are configured to the applied battery pack.
Need an M-BMS configuration?
We propose an interface configuration matched to your battery-pack specs and site environment.