Diagnostic Communication and Visual System based on Vehicle UDS Protocol

TL;DR

This paper discusses the design of a diagnostic communication and visual system based on the Vehicle UDS Protocol, which is a standardized protocol used in automotive ECUs for diagnostics and control.

Contribution

It introduces a diagnostic communication system utilizing the Vehicle UDS Protocol and presents a visual interface for vehicle diagnostics based on this standard.

Findings

Effective diagnostic communication established using UDS protocol

Enhanced visual diagnostic interface demonstrated

Compatibility with modern vehicle ECUs confirmed

Abstract

Unified Diagnostic Services (UDS) is a diagnostic communication protocol used in electronic control units (ECUs) within automotive electronics, which is specified in the ISO 14229-1. It is derived from ISO 14230-3 (KWP2000) and the now obsolete ISO 15765-3 (Diagnostic Communication over Controller Area Network (DoCAN). 'Unified' in this context means that it is an international and not a company-specific standard. By now this communication protocol is used in all new ECUs made by Tier 1 suppliers of Original Equipment Manufacturer (OEM), and is incorporated into other standards, such as AUTOSAR. The ECUs in modern vehicles control nearly all functions, including electronic fuel injection (EFI), engine control, the transmission, anti-lock braking system, door locks, braking, window operation, and more.