Autopilot Hardware 3.0

Last updated: December 17, 2024

Introduction and Overview

Model S and Model X vehicles built after March 2019 are equipped with Driver Assistance hardware generation 3.0 (HW3) components. Although this generation superseded the previous 2.5 hardware, vehicles with both generations were built in parallel for a certain period of time.

Tip

The Driver Assist Hardware can be identified with the cfg_driver_assist vehicle configuration. Driver Assistance 3 hardware will have the "TeslaAP3" configuration.

1. Front ultrasonic sensors (x6) 2. Side repeater cameras (x2) 3. Driver Assistance Electronic Control Unit (ECU) 4. Forward-facing camera assembly with 3 cameras 5. B-Pillar cameras (x2) 6. Rear view camera 7. Park Assist ECU 8. Rear ultrasonic sensors (x6) 9. Radar sensor
Component Location Overview - Model X

The above listed Driver Assist hardware interfaces with software running on the Driver Assistance electronic control unit (ECU), providing the driver with features like Traffic-Aware Cruise Control (TACC), Autosteer, Autopark, Forward Collision Warning, and Automatic Emergency Braking. Cameras and sensors give the vehicle a 360-degree view, which allows the vehicle to:

• Identify the road layout by detecting lane markings, curbs, barriers, and other obstacles.
• Identify a suitable travel path and speed.

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Component Specifications

Driver Assistance ECU

The Driver Assistance ECU (also known as DAS ECU or Autopilot ECU) is located behind the glove box and its main functional components are:

• Primary Processor (Turbo A)

• Backup Processor (Turbo B)

• Secondary Processors (Security Controller Subsystem (SCS) and Safety Management Subsystem (SMS)), which is contained in each Turbo chip

• GNSS receiver

• Inertial measurement unit (IMU)

• Ethernet switch

• CAN transmitter / receiver

• Camera inputs

Common Abbreviation	Definition
ESP	Electronic Stability Program Electronic Control Unit (ECU)
EPAS	Electric Power Assisted Steering
RCM	Restraints Control Module
DI	Drive Inverter
MCU	Media Control Unit
PARK	Park Assist Electronic Control Unit (ECU)

Driver Assistance ECU Location (Left-Hand Drive Model X Shown, Model S Similar)

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