Scalable and Modular Systems for Efficient HIL Testing
To test ECUs thoroughly, it is not only necessary to connect the communication networks to the test system, it is also necessary to connect the I/O interfaces.
This task is handled by the Vector VT System. It simplifies the setup of test benches and HIL test systems immensely, because it integrates all circuit components needed to connect an I/O channel in one module.
Examples of I/O channels are an ECU's output for controlling a headlamp or input for connecting a brightness sensor.
All relevant test components are integrated into a single device:
Measurement hardware with signal conditioning
Relays e.g. for switching short-circuits
Electronic load for actuator simulation
Resistance decade for simulation of a sensor
Minimal wiring effort for test setups
Voltage range adapted to automotive applications
Seamless integration into CANoe
Current Measurement Module: VT2808
Smart Charging Communication Module: VT7970 (Qualcomm PLC Chip)
Smart Charging Communication Module: VT7971 (Vertexcom PLC Chip)
With the VT system test systems for the function test of ECUs and vehicle networks can be assembled. CANoe is the associated test automation software. The modular design of the VT System allows to build test solutions ranging from simple test setups to complex test systems:
Dedicated test systems for individual ECUs
Universal function testers for ECUs and subsystems
Flexible test hardware for the developer's work station
VT System Concept
When performing functional testing the ECU has to be tested in an environment in which it can see no difference between the real vehicle environment and the testing environment.
The I/O lines of the ECU are connected to the modular VT System and when necessary original sensors and actuators too. The PC with the CANoe is connected via a fast, Ethernet-based real-time network port. This makes it easy to build flexible test systems with little integration or wiring effort.
The VT System is highly scalable. It can be used to set up test systems that range widely in complexity and functionality: from small auxiliary test tools at developer workstations to comprehensive functional testers and HIL test stations in the test laboratory.
Since the modules are universal in design, the test systems can be used for different test objects and test tasks without much effort.
Front view: 9.5" desktop case, fully loaded
Front view: 19" desktop case, fully loaded
Front view: 19" system rack, fully loaded
Front view: HIL cabinet, customized
The backplane takes up the lower quarter of the housing height. In the space above, the plug-in modules of the VT System are directly accessible from the back.
The backplane provides the Ethernet connection for the CANoe PC and supplies the VT System modules with 12V operating voltage. Each installed VT System module is also connected to the EtherCat® bus through the backplane. With the second Ethernet connector, several VT System racks can be connected to bigger test systems. Vector also provides completely assembled test racks on a project basis.
Using the VT8006A backplane, up to six VT System modules can be installed in a 9.5-inch desktop housing.
External connectors of the VT8012A backplane
The VT8012A backplane is the bigger variant of the VT8006A. Mounted in a 19-inch desktop case or in a 19-inch rack frame (4 U), up to 12 VT modules can be installed.
No. of slots
6 (VT8006A), 12 (VT8012A),
12 V ±10 %
Max. 16 A, depending on type and number of plugged-in VT System modules
Power consumption (backplane only)
Approx. 3.8 W
0 … 55 °C
Dimensions (L x W x H)
210 x 46 x 35 mm (VT8006A), 427 x 46 x 35 mm (VT8012A)
The VT System is a high-performance modular test system for comprehensive ECU testing. It consists of different hardware modules and together with CANoe it offers a powerful and flexible solution for testing ECU functions and important errors cases.
Some VT System modules are available as FPGA variant with a processor board which includes a second, user programmable FPGA. This FPGA has access to the I/O hardware on the VT System modules and communicates with CANoe and therefore allows the implementation of customer specific functionality.
An accredited calibration service is offered for individual VT System modules. This service can be used as a pre-calibration or re-calibration (recommended every 12 months). Furthermore, the service is also available for modules that are already in the field and not only for new modules.
The service, where available, is offered in cooperation with Keysight Technologies Inc. and complies with the requirements of ISO/IEC 17025:2017. This makes it possible to perform a calibration in different, globally distributed laboratories (China, Germany, India, Japan & United States of America). This calibration service also includes an adjustment if any module is out of specification. A detailed report with all explanations, results and measurements is included with the calibration.
Don't feel like reading? Then take a look at the videos.
Learn to know how to efficiently execute HIL tests with the modular test hardware of the VT System and CANoe.
VT System Workshops
The VT System offers a great potential to assemble test systems for the function test of ECUs and vehicle networks. But only those, who know all the options, can make the most of this modular test system's potential and save time and money.
Benefit from our training and advanced training offers in order to use the VT System even more efficiently in your daily work!