HEDR / Vehicle Event Data Retrieval System
HEDR / Vehicle Event Data Retrieval System
OBD and ACM from different car models
HEDR / Vehicle Event Data Retrieval System

HEDR / Vehicle Event Data Retrieval System

HEDR efficiently retrieves critical crash data from the Event Data Recorder (EDR) via the vehicle's OBD port or directly from the Airbag Control Module (ACM). It captures essential parameters such as vehicle speed, longitudinal and lateral delta-V, acceleration, and brake pedal position. This data supports accurate crash reconstruction and root cause analysis. As a result, HEDR provides reliable digital evidence for traffic accident investigations, forensic analysis, insurance claims, fraud prevention, and vehicle safety assessments — especially for modern electric vehicles.

Accurate. Fast. Portable. Designed for Forensic Vehicle Accident Investigation.

Why Choose HEDR?

Authoritatively Verified and Crash-Tested

Developed with support from large-scale vehicle crash simulation data and verified by traffic safety research institutions for forensic reliability.

Broad Vehicle Compatibility

HEDR supports both international and Chinese vehicle models, covering brands such as Toyota, Audi, Mercedes-Benz, and over 70 Chinese makes.

Exceptional NEV Support

Specifically optimized for new energy vehicles (NEVs), including: BYD, NIO, XPeng, Haval, GAC Trumpchi, Geely, Chery, Roewe, Li Auto, LYNK, Chang’an, and more.

Simple and Intelligent Operation

  • Auto vehicle model recognition.
  • Single-cable access for all ACM types.
  • Graphic interface with guided workflow.
  • Compatible with Windows PC, Android tablet, and mobile phone.

Flexible Data Extraction for All Accident Scenarios

  • OBD Port Access: For lightly damaged vehicles with power.
  • Direct ACM Module Access: For severely damaged vehicles via dedicated wiring cables.
  • Includes step-by-step graphic guidance and pin-to-pin connection instructions for ACM modules.

Secure Local Storage

Crash event data is stored locally on the device and can be retrieved at any time — ensuring data safety, integrity, and traceability.

Features Highlighted

Features Highlighted

1. OBD port reading, plug and read

Features Highlighted

2. One cable satisfies the data reading for all ACM modules with graphical instruction

Features Highlighted

3. Professional Report

Download the HEDR APP QR

Scan the QR code to install the official HEDR app.
Use it to connect your device, retrieve EDR data, and generate field reports directly on your mobile device.

HEDR is compatible with a wide range of international and domestic vehicle brands, including both internal combustion and electric models. To ensure users can verify compatibility before deployment, we provide a detailed and regularly updated list of supported vehicle makes and models.

📄 Download the Full Supported Vehicle List (PDF)