V1.0 | 2017-02-09

Vector CAN FD Symposium 2017

OEM Conformance Tests for CAN FD

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Agenda

Scope of OEM Conformance Test

Motivation for Test Package

Test Package Components

Vector Solutions for CAN FD

Example: CANoe Test Package VAG

Summary + Outlook

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Basic ECU physical layer check Test method: measurement with oscilloscope

ECU network integration test Sending behavior (cycle times, CAN IDs, DLC, …) Wakeup/sleep behavior + network management protocol (if applicable)

Main test method: observing bus traffic

ECU stimulation test Power supply Ignition clamp Message events (timeout, DLC, …) Signal events (ignition signal, CRC, message counters, error values, …) Bus errors

Main test method: feedback via diagnostic trouble codes

Not covered Application functionality Conformance to network protocol usage of certified transceiver + controller assumed

Scope of OEM Conformance Tests OEM Conformance Tests for CAN FD

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Characteristics Ready-to-use generic test implementations Automated test operation for minimum testing effort Possibility for repeatable testing that accompanies development Test coverage as large as possible Justifiable costs for test hardware + software

Benefits on supplier side High quality tests

> Widespread usage > Close cooperation between OEM and test package responsible

Greatly reduced effort for own tests Earlier detection of problems

Benefits on OEM side Less testing effort due to higher initial ECU quality Less effort to validate supplier tests Potentially independent test implementations

Motivation for Test Package OEM Conformance Tests for CAN FD

cost reductions

cost reductions

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Test Package Components OEM Conformance Tests for CAN FD

Power Supply

BAT

GND

IGN

ECU (without I/O)

Controllable power supply + ignition

Under- and overvoltage

Voltage disturbance sequence (e.g. spike)

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Network protocol (e.g. CAN FD)

Test Package Components OEM Conformance Tests for CAN FD

Power Supply

BAT

GND

IGN

ECU (without I/O)

(Partial) Remaining Network

Simulation

Sending (+ receiving) of messages

Comprehensive control and fault injection, e.g. Triggering and suppression of messages Setting of signals

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Network protocol (e.g. CAN FD)

Test Package Components OEM Conformance Tests for CAN FD

Power Supply

BAT

GND

IGN

ECU (without I/O)

(Partial) Remaining Network

Simulation

Digital/analog disturbances

Versatile/fast triggers

Network protocol (e.g. CAN FD)

(Partial) Remaining Network

Simulation

Disturbance

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Network protocol (e.g. CAN FD)

Test Package Components OEM Conformance Tests for CAN FD

Power Supply

BAT

GND

IGN

ECU (without I/O)

(Partial) Remaining Network

Simulation

Disturbance

Read / clear DTCs

Handling of diagnostic session Diagnostic Comm.

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Network protocol (e.g. CAN FD)

Test Package Components OEM Conformance Tests for CAN FD

Power Supply

BAT

GND

IGN

ECU (without I/O)

(Partial) Remaining Network

Simulation

Disturbance

Oscilloscope

Voltage signal levels/edges

Eye diagram

Diagnostic Comm.

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Network protocol (e.g. CAN FD)

Test Package Components OEM Conformance Tests for CAN FD

Power Supply

BAT

GND

IGN

ECU (without I/O)

(Partial) Remaining Network

Simulation

Disturbance

Diagnostic Comm.

Control +

Reporting Oscilloscope

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Control + Reporting

Remaining Bus Simulation

Diagnostic Communication CANoe with Test Feature Set + CAN FD interface (e.g. VN1630A)

Power Supply VH1150 (Imax ≤ 2.5A) VT7001A (Imax ≤ 70A)

Oscilloscope CANoe.Scope with additional hardware (e.g. Picoscope 5444B-034)

Disturbance VH6501 (includes CAN FD interface)

Vector Solutions for CAN FD OEM Conformance Tests for CAN FD

(coming soon)

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Future standard setup for CAN FD

Future extended setup for CAN FD

Example: CANoe Test Package VAG OEM Conformance Tests for CAN FD

VH1150

ECU CAN FD bus USB

VH6501

BAT GND IGN

USB

Imax ≤ 2.5A

VT7001A

ECU CAN FD bus USB

VH6501

BAT GND IGN

ETH

Controllable Power Supply

Imax ≤ 70A

VT System

GND +

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Test generation + Execution

Example: CANoe Test Package VAG OEM Conformance Tests for CAN FD

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Summary Both OEMs and suppliers profit from CANoe test packages

CANoe Test Package VAG

> Successful product since 2008 > Estimated number of end users worldwide: ~60 > Positive feedback from both Volkswagen AG and its suppliers > Roadmap

> Version 4.0 (in work) > Support of CAN FD test specifications > Requires VH6501 and CANoe 10.0

Outlook Test hardware for 48V electrical system

> CAN disturbance interface VH6501 (coming soon) > Power supply module VT7101 (planned)

Summary + Outlook OEM Conformance Tests for CAN FD

1.0 1.1 2.0 2.5 3.0 4.0

Main Release Service Pack

15 © 2017. Vector Informatik GmbH. All rights reserved. Any distribution or copying is subject to prior written approval by Vector. V1.0 | 2017-02-09

For more information about Vector and our products please visit www.vector.com

Author: Scharf, Joachim Vector Germany