ToolFusion
📋 Case Study

Canadian Iron Ore Mine Battery Swapping Pilot (Labrador)

Sub-zero ambient temps (−40°C), abrasive dust, and critical production uptime requirements (>95%)

🏗️ Project Overview

Pilot deployment of automated battery swap system for 90-ton haul trucks at IOC’s Sept-Îles site

🎯 Challenge

Sub-zero ambient temps (−40°C), abrasive dust, and critical production uptime requirements (>95%)

🔧 Design Approach

Heated, pressurized battery swap bay with ISO container footprint; thermally insulated battery modules with embedded glycol loops; robotic arm with vision-guided alignment and torque-controlled fasteners

📐 Design Diagram

Canadian Iron Ore Mine Battery Swapping PilotLabrador | −40°C | >95% UptimeHeated, Pressurized Swap Bay(ISO Container Footprint)Thermally InsulatedBattery ModuleGlycol Loop Embedded8.4 kWh/moduleRobotic ArmVision-Guided AlignmentTorque-Controlled Fasteners−40°CDustUptime >95%Swap Cycle Reliability: MTBF / Mean Time = 127

AI-generated project design illustration

📐 Key Calculations

Cold-Start Battery Preheat Energy

Mass × Cp × ΔT / Efficiency
Result: 8.4 kWh/module
Enables full power delivery within 90 sec at −40°C

Swap Cycle Time Reliability Index

Mean Time Between Failures / Mean Swap Time
Result: 127
Target >100 for production-grade reliability

📊 Results

Average swap time: 5 min 12 sec; 98.7% operational availability; eliminated cold-start diesel idling (saving 142 L fuel/truck/day)

💡 Lessons Learned

  • •Glycol loop freeze protection required triple redundancy
  • •Dust ingress into battery connectors caused 32% of early failures—solved with electrostatic sealing
  • •Autonomous swap validation required integration with truck CAN bus and PLC safety interlocks

✅ Key Takeaways

  • 1Glycol loop freeze protection required triple redundancy
  • 2Dust ingress into battery connectors caused 32% of early failures—solved with electrostatic sealing
  • 3Autonomous swap validation required integration with truck CAN bus and PLC safety interlocks