This title slide is titled "iBDU Technical Study." Its subtitle states: "Analyzing Architecture, Safety, and Industry Applications vs Traditional BDU."

iBDU Technical Study

Analyzing Architecture, Safety, and Industry Applications vs Traditional BDU

Source: Engineering-tech presentation on intelligent Battery Disconnect Unit

The Traditional BDU is a Battery Disconnect Unit for high-voltage safety in electric vehicles, featuring key components like pyrofuse, contactors, and current sensors. It operates as a passive protection mechanism with a simple design and limited intelligence.

Traditional BDU

• Battery Disconnect Unit (BDU) for HV safety in EVs.
• Key components: Pyrofuse, contactors, current sensors.
• Passive protection mechanism.
• Simple design with limited intelligence.

Source: iBDU Technical Study

The iBDU comprises smart relays, MCU for control, sensors for real-time monitoring, and built-in diagnostics for seamless EV power integration. Versus traditional BDUs, it provides active fault prediction, bidirectional control, faster anomaly response, greater compactness, and superior safety/efficiency.

iBDU Overview

| • Smart relays for intelligent switching

• MCU for central processing and control
• Sensors for real-time environmental monitoring
• Built-in diagnostics for self-health assessment

Achieves seamless integration in EV power systems. | • Active monitoring with fault prediction

• Bidirectional control capabilities
• Faster response times to anomalies
• Higher integration and compactness

Superior safety and efficiency over passive BDUs. |

Source: iBDU Technical Study

The slide outlines a four-step workflow for the IGBT/MOSFET role: receiving gate signals to initiate high-voltage switching, activating parallel MOSFETs for efficient power conduction, monitoring current/voltage/temperature for faults, and engaging redundancy to prevent failures. This ensures reliable operation in high-voltage paths by detecting issues like overheating, shorts, or avalanches and activating backups.

IGBT/MOSFET Role

{ "headers": [ "Step", "Action", "Details" ], "rows": [ [ "1. Signal Reception", "Receive gate control", "Initiates on/off switching in HV paths" ], [ "2. Power Conduction", "Parallel MOSFETs activate", "Low RDS(on) enables efficient high-voltage switching" ], [ "3. Monitoring", "Sense current/voltage/temp", "Detects overheat, short-circuit, avalanche conditions" ], [ "4. Mitigation", "Engage redundancy", "Backup paths prevent single-point failure" ] ] }

Source: iBDU Technical Study

The slide compares ISO 26262 safety levels between traditional BDU and intelligent iBDU. Traditional BDU offers ASIL B with basic redundancy for standard EV use, while iBDU achieves ASIL D through advanced diagnostics and fail-operational design for L3+ autonomy.

ISO 26262 Safety Comparison

The slide showcases industry examples, including Xiaomi's iBDU with integrated VCU and fast discharge, and Huawei's bidirectional DC-DC for V2G support. It also highlights trends toward compact, intelligent HV systems.

Industry Examples

• Xiaomi iBDU: Integrated VCU with fast discharge.
• Huawei: Bidirectional DC-DC for V2G support.
• Trends: Compact, intelligent HV systems

The slide compares BDU and iBDU across architecture, ISO compliance, safety, and elegance. iBDU outperforms with intelligent architecture, ASIL D rating, advanced safety, and high elegance, versus BDU's simple design, ASIL B, basic safety, and low elegance.

Comparison Summary

{ "headers": [ "Aspect", "BDU", "iBDU" ], "rows": [ [ "Arch.", "Simple", "Intelligent" ], [ "ISO", "ASIL B", "ASIL D" ], [ "Safety", "Basic", "Advanced" ], [ "Elegance", "Low", "High" ] ] }

The conclusion slide emphasizes that iBDU enhances EV safety and efficiency, supports ISO 26262 compliance and innovation, and offers future-proof bidirectional capabilities. It ends with the subtitle "Elevate Your EV Systems Today" and invites Q&A.

Key Insights & Conclusion

<ul><li>iBDU elevates EV safety & efficiency</li><li>Adopt for ISO 26262 compliance & innovation</li><li>Future-proof with bidirectional capabilities</li></ul><p><strong>Thank you! Q&A</strong></p>

Elevate Your EV Systems Today

Source: iBDU Technical Study