automatic validation of diagnostics in ecus - vector.com · v1.1 | 2016-10-10 canoe.diva diagnostic...

V1.1 | 2016-10-10

CANoe.DiVa Diagnostic Integration and Validation Assistant

Automatic validation of diagnostics in ECUs

Introduction

CANoe.DiVa for Automated Diagnostics Validation

Summary

Agenda

2/22

Let’s look at a ‘simple’ service, such as “ReadDataByIdentifier”, this has one “good case”, and (at first glance) five context sensitive “bad cases”:

Source: ISO 14229-1:2013

But consider, e.g. NRC 0x13, this is sent if the request is too long, too short or if too many DIDs are requested!> Excluding NRC 0x22, there are actually 8 “bad cases” that need to be considered, some of

which are dependent on the DID being requested!

Why Might We Want to Automate Validation?

Introduction

3/22

The Mission

Introduction

CANoe.DiVa

data driven diagnostic tests

test generation

reproducible

automated

broad and detailed

test run

documented

4/22

CANoe.DiVa

Introduction

ECU Specification

ECUSystem under

Test

CDD

Test Module

CANoeXML/CAPL

CANoe.DiVaCANdelaStudio

DiagnosticAuthoring Tool

ODX

Configurator

Generator

RuntimeLibrary

ReportAnalyzer

Test Report

CANoeHTML/

XML

CANoeTest Feature Set

5/22

Where might we want to insert faults?

Introduction

Bus access:Communication

Transport protocol (CAN):ISO network layer, parameters, timings, Flow Controls,…

CANoe/CANalyzer

Diagnostic „communication“: Timings, message format, request/ response dependencies

CANoe.DiVa

Diagnostic „exchange“: Supported services and sub-functions, data content, state dependencies,...

CAN LIN FlexRay DoIP K-Line

6/22

Protocols to consider during fault insertion

Introduction

ISO 14229 Unified Diagnostic Services (UDS): 2006/2013 ISO 15765 Diagnostics on CAN ISO 14230 Keyword Protocol 2000 (KWP) ISO 15031/J1979 On Board Diagnostics (OBD) ISO 27145 World-wide harmonized OBD (WWH-OBD)

GMW3110 (including GM Node Verification Procedures)

Various manufacturer specific test extensions (e.g. for Daimler, GM, VW, FCA, …)

7/22

Automated Tests – Scalability of Automation

Introduction

Diagnostic Console CAPL Browser vTESTStudio CANoe.DiVa

test creation

test execution

n/a editing CAPL tool supported generated

interactive automated automated automated

8/22

Introduction


Summary

Agenda

9/22

Overview


Automated generation of a CANoe test based on a diagnostic specification

User interface to configure tests Generation of a test specification Clear and detailed report of test results Support of test report analysis Requirement traceability Extensible test functionality

10/22

Protocol Testing


Diagnostic Message Flow Physical, functional addressing and timing

Diagnostic Protocol Format Valid, Combined and Invalid Requests Response (single, none, multiple)

Data Type Checks

Sessions and Security Levels Service execution in the different sessions and security levels Session and security state transitions

DiVa ECU

11/22

Application Testing: Diagnostic Parameter


Passive parameter validation against Diagnostic values (e.g. read/write) Configured data ranges Expectation values CCP/XCP values CANoe System Variables

Active control of I/Os to validate diagnostic parameter content CAN messages using CANoe rest bus simulation HW I/Os via VT System channels Any I/O using CANoe system variables

12/22

Application Testing: Fault Memory


Provoke network signal failures Communication timeouts Data consistency failures

Provoke hardware failures using the VT System: Short-circuits (Ground, UBatt, Pins) I/O failures (interruption, resistance, voltage) Individual error settings

Any other failures using user scripts

simul.node 2

realnode 1

simul.node 3

13/22

Application Testing


CANoe ILECU

System under Test

txMsgTemp

Temp.Sensor

Read (19,22)

IO Control

(2F)

control

measure

control

check

CANoe.DiVa

VT System

14/22

Software Download Test


Supported Download Tests* Valid Flashing Overvoltage and under voltage tests Cancel data transfer (stop transmission or clamp reset)

> Check that valid flashing is possible afterwards

Additional flash tests available from DiVa v10 [some in SP2, Q3/4 2017)]: Security Access: Do no Security Access during flash sequence. Security Access: Send an invalid Key during flash sequence. Erase Memory: Do not send Erase Memory Routine during flash sequence. Erase Memory: Cancel after Erase Memory. Erase Memory: Cancel erasing after X milliseconds. TransferData: Increment one bit of data during flash sequence (CRC

check must fail). TransferData: Increment one bit of data during flash sequence (Signature

check must fail). Fingerprint: Do not send the specified Fingerprint.

* With Vector vFlash

15/22

User Interface


16/22

Test Reporting


17/22

Test Result Analysis


Compare test runs

Different Views on the test report Result (Pass/Fail)

Service

ECU State

Issue Classification/Comment

Requirements

Identify error situations by combining Views

Comment and classify test results

Get one-page summary reports

Forward and archive a complete test report or an excerpt

18/22

Requirements Tracking


Link CANoe.DiVatests with test- or specification requirements (automatically and manually)

Documentation of requirements within test cases/results via prose, document references or links (e.g. DOORS, html)

Requirement View for test analysis: In which tests is a requirement verified?

Requirement Overview to document the verification result

19/22

Introduction


Summary

Agenda

20/22

Significant savings of time and effort Further quality improvement of the

ECU Software All development stages supported

Excellent test coverage Efficient, generation-based approach Automated tests without user

interaction User-defined tests allow tailoring

Widely used by OEMs and suppliers already with a proven record of success

Continuously enhanced features through implementation of customers’ requirements

Benefits

Summary

21/22

© 2016. Vector GB Limited. All rights reserved. Any distribution or copying is subject to prior written approval by Vector. V1.1 | 2016-10-10

Author:Iain CunninghamVector UK

For more information about Vectorand our products please visit

www.vector.com

automatic validation of diagnostics in ecus - vector.com · v1.1 | 2016-10-10 canoe.diva diagnostic...

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