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V1.0 | 2017-02-09
Vector CAN FD Symposium 2017
OEM Conformance Tests for CAN FD
2
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
3
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
4
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
5
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)
6
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
7
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
8
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.
9
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.
10
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
11
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)
12
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 +
13
Test generation + Execution
Example: CANoe Test Package VAG OEM Conformance Tests for CAN FD
14
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