Automotive BCM Diagnostics Platform

Safety-critical Body Control Module (BCM) simulation developed in Embedded C, featuring CAN communication, diagnostic fault management, runtime safety monitoring, and ECU health analytics.

Highlights

• CAN Bus Communication
• Diagnostic Trouble Code (DTC) Management
• Safety-Critical Fault Detection
• RTOS-Style Task Scheduling
• Runtime Logging & Monitoring
• Battery Health Analytics
• Degraded Mode Handling

Architecture

Scheduler
    |
    +--> CAN Module
    +--> DTC Manager
    +--> Safety Manager
    +--> Logger
    |
    +--> Health Analytics Engine

Sample Runtime Events

[INFO][CAN] RX ID=0x203

[WARN][DTC_MANAGER]
Battery voltage below threshold

[CRITICAL][SAFETY_MANAGER]
ECU entering degraded operational mode

Tech Stack

• Embedded C
• CAN Communication
• Automotive Diagnostics
• Fault Management
• Safety Monitoring
• Modular Software Architecture

Build

make
./bcm_sim

Engineering Focus

This project demonstrates software concepts commonly used in automotive ECUs:

• Body Control Modules (BCM)
• Diagnostic Systems
• Fault-Tolerant Design
• Runtime Health Monitoring
• Real-Time Scheduling Concepts

Future Work

• UDS Diagnostics (ISO 14229)
• AUTOSAR-Inspired Architecture
• CAN FD Support
• FreeRTOS Integration
• Multi-ECU Communication

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Author: Harish Raji Govindarassou