AKS (Araç Kontrol Sistemi) - Vehicle Control System

This project implements a complete Vehicle Control System (AKS) according to Turkish automotive competition specifications, featuring real-time telemetry data generation, display, and monitoring capabilities.

Project Structure

AKS_CODES/ ├── AKS_SCREEN/ # ESP32-S3 7" Display & Control Unit └── AKS_DATA_GENERATOR_DUMP/ # STM32F411RE Data Generator & Sensors

System Overview

The AKS system consists of two main components:

1. AKS_SCREEN (ESP32-S3): 7-inch HMI display for real-time vehicle monitoring
2. AKSDATAGENERATOR_DUMP (STM32F411RE): Sensor data collection and telemetry generation

Hardware Requirements

AKS_SCREEN (ESP32-S3 CrowPanel 7")

• Board: CrowPanel ESP32-S3 7.0" HMI Display (800x480)
• Features:
  • LVGL-based touch interface
  • Real-time data visualization
  • LED control buttons
  • I2C communication master

AKSDATAGENERATOR_DUMP (STM32F411RE Nucleo)

• Board: STM32F411RE Nucleo Development Board
• Function: Generates simulated vehicle telemetry data
• Features:
  • No real sensors - all data is simulated in software
  • I2C slave communication
  • Vehicle dynamics simulation

Pin Connections

I2C Communication Between Boards

| STM32F411RE (Slave) | ESP32-S3 (Master) | Function | |---------------------|-------------------|----------| | PB6 (I2C1SCL) | GPIO 19 | I2C Clock | | PB7 (I2C1SDA) | GPIO 20 | I2C Data | | GND | GND | Ground | | 3.3V | 3.3V | Power |

STM32F411RE I2C Communication Only

| Pin | Arduino Pin | Function | Connection | |-----|-------------|----------|------------| | PB6 | D10 | I2C1SCL | I2C Clock Line to ESP32 | | PB7 | D4 | I2C1SDA | I2C Data Line to ESP32 |

Note: No physical sensors are connected. All telemetry data is generated through software simulation.

ESP32-S3 CrowPanel Connections

| Pin | Function | Connection | |-----|----------|------------| | GPIO 19 | I2CSCL | STM32 I2C Clock | | GPIO 20 | I2CSDA | STM32 I2C Data | | GPIO 38 | LED Control | Onboard LED | | Touch Panel | Internal | GT911 Touch Controller |

AKS Functions Implemented

According to competition requirements, the following 7 main AKS functions are implemented:

1. Motor Torque Control (motor_tork_kontrolu)

• Real-time speed monitoring and control
• Acceleration/deceleration optimization
• Current limiting and overspeed protection

2. Regenerative Braking Optimization (geri_kazanimli_frenleme)

• Energy recovery during braking
• Battery charge state consideration
• Mechanical brake integration

3. Vehicle Energy Management System (arac_enerji_yonetimi)

• Energy consumption monitoring
• Power source optimization
• Remaining energy calculation

4. Vehicle Communication System (arac_ici_haberlesme)

• I2C protocol implementation
• Data standardization and conversion
• Multi-system integration

5. Fault Diagnosis (ariza_teshisi)

• Real-time system monitoring
• Fault code generation
• Warning display on screen

6. Vehicle Status Monitoring (arac_durumu_izleme)

• Speed, temperature, voltage monitoring
• Real-time data display
• User interface updates

7. Data Transfer to Monitoring Center (veri_aktarimi)

• CSV format telemetry logging
• Serial communication output
• Timestamp synchronization

Telemetry Data Format

The system generates telemetry data in the following CSV format:

zaman_ms;hiz_kmh;T_bat_C;V_bat_V;kalan_enerji_Wh 10000;45.2;28.5;365.2;45500 11000;48.1;28.7;364.8;45450 12000;46.5;29.0;365.0;45400

Data Fields:

• zaman_ms: Timestamp in milliseconds since vehicle start
• hiz_kmh: Vehicle speed in km/h
• T_bat_C: Battery temperature in °C
• V_bat_V: Battery voltage in V
• kalan_enerji_Wh: Remaining energy in Wh

Installation & Setup

1. Install PlatformIO

bash curl -fsSL https://raw.githubusercontent.com/platformio/platformio-core-installer/master/get-platformio.py -o get-platformio.py python3 get-platformio.py export PATH="/home/$USER/.platformio/penv/bin:$PATH"

2. Build AKS_SCREEN (ESP32-S3)

bash cd AKS_CODES/AKS_SCREEN platformio run platformio run --target upload

3. Build AKSDATAGENERATOR_DUMP (STM32F411RE)

bash cd AKS_CODES/AKS_DATA_GENERATOR_DUMP platformio run platformio run --target upload

System Operation

Normal Operation Flow:

1. STM32F411RE continuously generates simulated telemetry data (no real sensors)
2. ESP32-S3 requests data via I2C every 5 seconds
3. Touch Interface allows manual LED control and system interaction
4. Serial Output provides CSV telemetry for monitoring center
5. Real-time Display shows current vehicle status

Simulation Modes:

The STM32 data generator includes 3 simulation modes:

1. Normal Mode: Standard vehicle operation
2. Fault Mode: Simulates system faults and reduced performance
3. Charging Mode: Simulates vehicle charging with energy recovery

Modes automatically cycle every 30 seconds for demonstration purposes.

Competition Compliance

This system meets all Turkish Automotive Competition requirements:

✅ Indigenous Development: Custom PCB design and software
✅ Multiple Functions: Implements 7+ required AKS functions
✅ Communication Protocol: I2C for inter-system communication
✅ Telemetry System: Real-time data logging and transmission
✅ User Interface: 7" touch display for monitoring
✅ Fault Diagnosis: Real-time fault detection and display
✅ Energy Management: Battery and energy monitoring

Technical Specifications

Performance Metrics:

• Data Update Rate: 1 Hz (1 sample per second)
• Communication Speed: I2C at 100kHz
• Display Resolution: 800x480 pixels
• Memory Usage: <2MB Flash, <128KB RAM
• Power Consumption: <5W total system

Communication Protocol:

• I2C Address: 0x42 (STM32 slave)
• Data Packet Size: 37 bytes
• Error Handling: Timeout and retry mechanisms
• Data Integrity: Packed structure with checksum

Development Team

Developed for Turkish automotive competitions focusing on: - Electric vehicle control systems - Real-time embedded programming - HMI design and implementation - Sensor integration and data acquisition

License

This project is developed for educational and competition purposes. Please refer to individual component licenses for specific usage rights.

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Note: This system is designed for demonstration and competition purposes. For production vehicle use, additional safety certifications and testing would be required.