D1000 Gen1 – Cell Management Unit (CMU)

Overview

The D1000 Gen1 Cell Management Unit (CMU) is the distributed monitoring node in Prohelion’s battery management architecture. In this system, multiple CMUs are deployed throughout the battery pack to provide local cell monitoring, balancing, and data collection. Each CMU can monitor 1-8 lithium cells of any chemistry or form factor, with user-configurable voltage thresholds for maximum flexibility. The CMUs communicate with the Battery Management Unit (BMU) via CAN bus, creating a scalable distributed system where local intelligence handles cell-level operations while reporting to the central controller. This approach ensures optimal performance across large battery packs while maintaining system reliability and fault detection capabilities.

Key Features

• Universal Cell Compatibility: Supports any lithium chemistry cell with user-configurable voltage thresholds
• Scalable Monitoring: Each unit monitors 1-8 cells with simple point-to-point ribbon cable connections
• Active Cell Balancing: 250mA balance current for maintaining cell equilibrium
• High Precision Measurement: 1mV voltage resolution with 2°C temperature accuracy
• Network Powered: Powered from CAN network, not cells, preventing contribution to cell leakage
• Comprehensive Fault Detection: Redundant voltage sensing, cross-checked A/D reference, and communication timeouts

Applications

The D1000 Gen1 CMU is ideal for:

• Electric vehicle battery management systems
• Energy storage system integration
• High-voltage battery pack control
• Automotive and motorsport applications
• Research and development projects

System Integration

The CMU works in conjunction with:

• Battery Management Unit (BMU): Reports cell data and receives commands via CAN bus
• Lithium Cells: Direct monitoring of 1-8 cells via simple ribbon cable harness
• Other CMUs: Networked together in distributed monitoring architecture
• Temperature Sensors: Integrated temperature monitoring for thermal management

Documentation

Comprehensive technical documentation and integration guides are available through Prohelion’s documentation portal at: docs.prohelion.com

Support

For technical support, integration assistance, or product inquiries, please visit our support portal where you can find comprehensive resources, submit support tickets, and access our knowledge base.