Architecture Integration Matrix
E/E ZONE ARCHITECTURE · HARDWARE SAFETY MECHANISMS
Exposed Attack Vectors
3
External Interfaces (OTA, BLE, OBD)
SecOC Implementation
100%
Across Powertrain CAN FD
ASIL D SPFM Target
> 99%
Achieved: — (Inverter MCU)
ASIL D LFM Target
> 90%
Achieved: — (Inverter MCU)
Zone Architecture & Attack Surface Mapping
UN R155 Boundary AnalysisCentral Compute Gateway
10G Automotive Ethernet Backbone
MACsec / Firewall
OTA Downgrade
Hardware Diagnostic Coverage (DC)
ISO 26262-5Traction Inverter MCU Safety Mechanisms Evaluation
Single Point Fault Metric (SPFM)
Target: 99% | Actual: —
Latent Fault Metric (LFM)
Target: 90% | Actual: —
Gate Driver Diagnostic (DESAT)
Target: 95% | Actual: —
Safety Mechanism Register
Part 5 Allocation| Component | Safety Mechanism | Claimed DC | Status |
|---|