VT System
Modular Test Environment for Efficient ECU Testing

VT System – Modular Test Hardware

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. 

Advantages

  • 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

Application Areas

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.

ECU environment in the vehicle

In the vehicle, an ECU communicates with other ECUs via bus interface; it is supplied with power from the battery and is connected to sensors and actuators via I/O lines.
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Testing with original loads and sensors

The VT System is placed between the ECU's I/O lines and the original sensors and acuators. CANoe executes the automated tests and simulates the rest of the network nodes.
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Testing with simulated actuators and sensors

The VT System can also simulate the sensors and actuators. This lets you reconstruct any desired test situations and error cases.
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Modular Test Racks

Housing

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
19-inch desktop case
Front view: 19" desktop case, fully loaded
19-inch system rack
Front view: 19" system rack, fully loaded
Front view: HIL cabinet, customized

Backplane

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.

VT8006A
External connectors of the VT8006A backplane

Using the VT8006A backplane, up to six VT System modules can be installed in a 9.5-inch desktop housing.

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VT8012A
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.

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VT8006A, VT8012A
No. of slots
6 (VT8006A), 12 (VT8012A),
Supply voltage
12 V ±10 %
Input current
Max. 16 A, depending on type and number of plugged-in VT System modules
Power consumption (backplane only)
Approx. 3.8 W
Temperature range
0 … 55 °C
Dimensions (L x W x H)
210 x 46 x 35 mm (VT8006A), 427 x 46 x 35 mm (VT8012A)
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Module Overview

The VT System is a high-performance modulare 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.

VT1004A | VT1004 FPGA

Load and Measurement Module
Load and Measurement Module: VT1004 | VT1004 FPGA

The VT1004A module is connected to up to 4 outputs of an ECU, which are connected to actuators such as servo motors or lamps in real-vehicle operation mode.

This module is also available as a variant (VT1004A FPGA) with user programmable FPGA.

Functions for each channel

  • Various signal paths to the original loads and bus bars are switched via relays. The relays may be used, for example,to generate short circuits to ground or to battery voltage via a bus bar, or to break the line to an original load (broken wire simulation).
  • Relay for short circuits between the input lines
  • Electronic load for predefined current or resistance with electronic overload protection
  • Voltage measurement with calculation of instantaneous, average and effective values
  • Determination of PWM signal parameters (frequency, duty cycle, high and low voltage levels)

Furthermore, it is possible to reverse the two-line connections of the two bus bars via relays (combined for all channels of a module).

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VT2004A | VT2004 FPGA

Stimulation Module
Stimulation Module: VT2004 | VT2004 FPGA

The VT2004A manages up to four inputs of an ECU to which vehicle sensors such as temperature probes or switches are connected.

This module is also available as a variant (VT2004A FPGA) with user programmable FPGA.


Functions for each channel

  • Various signal paths to the original sensors and bus bars are switched via relays. The relays may be used, for example, to generate short circuits to ground or to battery voltage via a bus bar, or to break the line to an original sensor (broken wire simulation).
  • Relay for short circuits between the input lines
  • Voltage stimulation
  • Decade resistor for the sensor simulation
  • Generation of a PWM signal as input signal for the ECU
  • Simulation of a potentiometer as a sensor (on channel 1)

Furthermore, it is possible to reverse the two-line connections of the two bus bars via relays (combined for all channels of a module).

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VT2516A | VT2516A FPGA

Digital Module
Digital Module: VT2516A | VT2516A FPGA

The VT2516A module is connected to up to 16 mainly digitally used I/Os of an ECU, i.e. for signals with 2 states. In real vehicles for example, coding connectors, switches or signal lamps may be connected to these pins.

This module is also available as a variant (VT2516A FPGA) with user programmable FPGA.

Functions for each channel

  • Various signal paths to the original sensor or the original actuator are switched via relays and are connected to a bus bar. The relays may be used, for example, to disconnect the line (broken wire simulation).
  • Relay for short circuit between an input line and ground or battery voltage
  • Relay for a connected external load, pull-up or pull-down resistor
  • Sampling of a digital input value with configurable voltage threshold
  • Determination of PWM signal parameters (frequency and duty cycle)
  • Voltage measurement with calculation of instantaneous and average values
  • Digital output with adjustable high and low levels
  • Autonomous output of a bit stream loaded into module
  • Generation of a PWM signal
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VT2710 and PSI5SENTpiggy

Serial Interface Module
Serial Interface Module: VT2710

The module VT2710 enables the test of serial communication between an ECU and one or several digital sensors. Either the ECU or the sensors can be simulated. Tracing of the communication between real ECU and real sensors is possible as well. The module addresses two groups of serial interfaces:

  1. The automotive sensor interfaces PSI5 and SENT and
  2. the universal digital interfaces SPI, I2C, UART, RS232, RS422, RS485 or LVDS.

To operate the automotive sensor interfaces, the CANoe option Sensor as well as one PSI5SENT piggy per channel is required additionally. VT2710 supports max. 4 automotive sensor channels per module.
 

Functions for the automotive sensor interfaces PSI5 and SENT

  • Variable generation of the sensor supply voltage
  • Generation and recognition of sync pulses (PSI5) with variable slope, height and duration
  • Signal generation (voltage or current modulated)
  • Variation of the data rate
  • Asynchronous or synchronous parallel operation (PSI5)
  • Variable resistor and capacitor cascades for each channel to simulate various bus loads (PSI5)
  • Relays for short cuts between sensor and supply lines
  • Relays for short cuts to GND or battery voltage as well as between channels on two independent bus bars
  • Realisation on one PSI5SENTpiggy per channel


Functions for universal digital interfaces

  • Two digital interfaces with 8 I/O pins each
  • Internally generated or externally supplied digital voltage per interface
  • Each I/O pin can be used as input or output
  • Simulation of an SPI master or up to 5 separately controllable SPI slaves on 2 channels
  • UART or RS232 on 2 channels each (supported from CANoe 10.0 SP). For UART, the voltage level can be adjusted
  • Two RS485/RS422 channels for half duplex operation with switchable 120  termination resistor (supported from CANoe 10.0 SP)
  • I2C master or slave simulation in standard, fast or high-speed mode on two channels with switchable pull-up resistors for clock (SCL) and data (SDA) lines (supported from CANoe 11)
  • Two LVDS channels for sensor communication over higher distances, e.g. for the operation of spatially separated active probes. Additional power supply is provided from the module (supported from CANoe 10.0 SP)
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VT2816 | VT2816 FPGA

General-Purpose Analog I/O Module
General-Purpose Analog I/O Module: VT2816 | VT2816 FPGA

The module VT2816 provides 12 inputs and 4 outputs for analog signals. They may be connected directly to the inputs or outputs of an ECU. Also, other digital signals can be measured or controlled using this module, e.g. to control additional parts of a test bench.

This module is also available as a variant (VT2816 FPGA) with user programmable FPGA.

Functions for each channel

  • Voltage measurement with 2 measurement ranges
  • Differential or single-ended inputs (switchable)
  • Alternative current measurement with integrated shunt (eight channels)
  • Calculation of instantaneous, average, and effective values from the raw measurement values of the A/D converter; access to these values within CANoe


Functions for each output channel

  • Voltage output with 2 switchable output ranges
  • Differential or single-ended inputs (switchable)
  • Autonomous output of a voltage curve loaded into module
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VT2820

General-Purpose Relay Module
General-Purpose Relay Module: VT2820

The module VT2820 provides 20 general-purpose relay channels. These can be used for example to switch various signal paths in a test system, to realize a switch matrix, or to generate errors like short-circuits

Functions

  • 12 relay channels with single-pole closer and 2 additional relays to internal bus bars (e.g. to Vbatt and ground)
  • 8 relays with change-over contacts
  • Overcurrent protection by resettable fuse (polyfuse)
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VT2848 | VT2848 FPGA

General-Purpose Digital I/O Module
General-Purpose Digital I/O Module: VT2848 | VT2848 FPGA

The module VT2848 provides 48 inputs or outputs for digital signals. They may be connected directly to the inputs or outputs of an ECU. Also, other digital signals can be measured or controlled using this module, e.g. to control additional parts of a test bench.

This module is also available as a variant (VT2848 FPGA) with user programmable FPGA.

Functions for each channel

  • Channel individually configurable as input or output channel
  • Sampling of digital input signals with configurable threshold
  • Determination of frequency and duty cycle of PWM signals (on 16 channels)
  • 3 modes for digital output:

    • Push-pull operation against Vbatt or Vext
    • Low-side switch
    • High-side switch against Vbatt or Vext

  • Outputs use transistors to allow endurance tests
  • Autonomous output of a bit stream loaded into module
  • Generation of a PWM signal (on 16 channels)
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VT6011

Real-time Module
Real-time Module: VT6011

The real-time modules VT6011 handles the execution of the real-time test and simulation part of CANoe and drive the VT System hardware. The user’s PC is connected to the real-time module by Ethernet and does not affect the real-time behavior of the test system.

Functions

  • The backplane and VT6104A/VT6204 network modules are connected directly to the real-time module; no interfaces are needed for them on the user’s PC.
  • Easy to configure, no special actions necessary on the real-time module
  • Separate Ethernet interface for connecting the user’s PC
  • 2 USB Master Ports enable the use of further interfaces such as the VN2610 for MOST or the VN3600 for FlexRay.
  • COM Express PC module with Intel® Celeron processor
  • 2 PCI Express cable ports for 2 VT6104A/VT6204 network modules
  • Passively cooled
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VT6051A

Real-time Module
Real-time Modules: VT6051A

The real-time module VT6051A handles the execution of the real-time test and simulation part of CANoe and drive the VT System hardware. The user’s PC is connected to the real-time module by Ethernet and does not affect the real-time behavior of the test system.


Functions

  • The backplane and VT6104A/VT6204 network modules are connected directly to the real-time module; no interfaces are needed for them on the user’s PC.
  • Easy to configure, no special actions necessary on the real-time module
  • Separate Ethernet interface for connecting the user’s PC
  • 2 USB Master Ports enable the use of further interfaces such as the VN2610 for MOST or the VN3600 for FlexRay.
  • High-performance COM Express PC module with Intel® CoreTM i7 processor for a high number of network channels
  • 4 PCI Express cable ports for 4 VT6104A/VT6204 network modules
  • Active cooling
  • Support of Extended Realtime. This enables additional cycle times of 500μs and 200μs for measurement signal system variables of the VT System
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VT6104A

Network Module
Network Module: VT6104A

The four-channel network module VT6104A is a high-performance interface module for the VT System. As with other VT System modules, faults can be fed onto the signal lines. The module offers high performance and low latency times, because a PCI Express cable is used to connect the network interface to the VT6010/VT6051A real-time module or a PC. If connected to the PC, a PCI Express cable connector (x1) is needed. This may be added to the PC using an appropriate expansion card.

Module features

  • Network interface with four independent channels
  • Each channel may be individually configured as a CAN or LIN interface
  • Proven, interchangeable Vector CAN/LIN/FlexRay piggies may be used as bus transceivers
  • Hardware synchronization of the network interfaces with the VT System
  • Relays for line breaks and short circuits between signal lines, to ground or to battery voltage
  • Switchable termination resistors
  • All channels can be connected by using the internal bus bar
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VT6204

Network Module
Network Module: VT6204

The four-channel network module VT6204 is a high-performance interface module for the VT System. As with other VT System modules, faults can be fed onto the signal lines. The module offers high performance and low latency times, because a PCI Express cable is used to connect the network interface to the VT6010/VT6051 real-time module or a PC. If connected to the PC, a PCI Express cable connector (x1) is needed. This may be added to the PC using an appropriate expansion card.

Module features

  • Network interface with four independent channels
  • Each channel may be individually configured as a CAN or LIN interface
  • VT6204 additionally supports FlexRay on channel 1 and CAN FD resp. K-Line on all channels
  • Proven, interchangeable Vector CAN/LIN/FlexRay piggies may be used as bus transceivers
  • Hardware synchronization of the network interfaces with the VT System
  • Relays for line breaks and short circuits between signal lines, to ground or to battery voltage
  • Switchable termination resistors
  • All channels can be connected by using the internal bus bar
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VT6306 and 100BASE-T1piggy 1101

Ethernet Network Module
Ethernet Network Module: VT6306 and 100BASE-T1piggy 1101

The six-channel Ethernet Network Module VT6306 is a high-performance interface module for the VT System. The base module provides two 100BASE-TX/1000BASE-T channels and a mounting place for piggyboard with six Automotive Ethernet channels. The piggybord carries the physical bus access chips as well as the typical VT System fault injection capabilities like line breaks and shortcuts but also an adjustable resistive signal attenuation. The module including piggyboard offers high performance and low latency times because a PCI Express cable is used to connect the network interface to the VT6010 or VT6051A realtime module or a PC. If connected to the PC, a PCI Express cable connector (x1) is needed. This may be added to the PC using
an appropriate expansion card.
 

Module Features

  • Six Automotive Ethernet channels on network specific piggy (100BASE-T1piggy 1101)
  • Two 100BASE-TX/1000BASE-T channels on main board: connection of Standard Ethernet logger and Ethernet accessories
  • High precision time stamps for Ethernet frames
  • Hardware synchronization with multiple bus interfaces with 1μs accuracy
  • Ethernet Monitoring between two nodes
  • Media conversion between 100BASE-TX/1000BASE-T and Automotive Ethernet channels
  • Flexible, hardware based monitor filter
  • Multiple, configurable Test Access Points (TAPs)

    • Monitoring TAP: test mode with constant and very low latency with direct PHY connection
    • Stimulation TAP: channel connection an MAC level. This allows transmission of additional packets

  • Configurable layer2-switch operation mode


Functions of the 100BASE-T1piggy 1101

  • Electrical error injection and bus bar switching for all six Automotive Ethernet channels in accordance with the VT System concept
  • Resistive signal attenuation between 5 Ω … 2555 Ω in steps of 5 Ω on three 100BASE-T1 channels freely adjustable
  • Automotive Ethernet transceiver type NXP TJA1101 for all six channels
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VT7001A

Power Supply Module
Power Supply Module: VT7001A

The VT7001A module can be used to control up to 2 power supply inputs of an ECU (e.g. terminals 15 and 30). As an alternative, 2 ECUs may be supplied separately, e.g. for testing differences in voltage supplies.

Module features

  • 2 external power supplies can be connected
  • Internal power supply generates voltage for the ECU from the VT System power supply
  • 2 external and 1 internal power supplies may be connected to the 2 outputs to the ECU in various combinations
  • Ground lines of outputs can be interrupted (line break of terminal 31)
  • Relays for producing short circuits between the output lines
  • Measurement of output currents over a very wide range
  • Measurement of input and output voltages
  • Control of two external power supplies via control voltage or via electrically decoupled serial interfaces
  • Generation of arbitrary control voltage curve
  • Serial interface for driving an external display
  • Hardware synchronization with Vector network interfaces
  • The module supplies ground and battery voltage to the bus bars at additional pins
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VT7820

Rotation Sensor Module
Rotation Sensor Module: VT7820

The VT7820 is a dedicated application board for VT7900A FPGA. It is designed for the simulation of rotational sensors and can be used e.g. for testing of brake control ECUs or motor ECUs.

Module features

  • Simulation of wheel speed sensors (S-, I- and V-type)
  • Simulation of cam- and crankshaft sensors
  • Number of encoder wheel teeth and gaps freely configurable
  • Voltage or current modulated signal
  • Digital levels and slew rate freely adjustable
  • Fault injection (short circuit, line break)
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VT7870

Smart Charge Communication Test Module
Smart Charge Communication Test Module: VT7870

The VT7870 is a dedicated VT7900A application board for the test of smart charge communication according to ISO 15118. It can be used for testing of electric vehicle (EV) and electric vehicle supply equipment (EVSE).

Module features

  • Circuit according to IEC 61851-1 Annex A
  • Powerline communication (PLC)
  • Simulation of component tolerances
  • Simulation of electric vehicle (EV) or/and electric vehicle supply equipment (EVSE)
  • Test of control pilot PWM communication (CP)
  • Stimulation and measurement of PWM signal via System Variables in CANoe
  • External stimulation and measurement of PWM signal is possible
  • Integrated Devolo dLAN® Green PHY module
  • Ethernet connection to CANoe with RJ45 socket
  • Fault simulation of control pilot
  • Broken wire
  • Short circuit to protective earth (PE)
  • Reproduction of capacitive load with integrated capacitance decade
  • Operation of relevant resistors with minimum, maximum and nominal values
  • Variation of PWM signal parameters (frequency, duty cycle, voltage)
  • Measurement of proximity contact (PP) voltage
  • Electrical isolation of application board against the remaining VT System
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VT7900A | VT7900A FPGA

Extension Module
Extension Module: VT7900A | VT7900A FPGA

The VT7900A is used to extend the VT System by adding modules with task-specific circuits. The VT7900A serves as the main board, on which an application board is attached. The application board can be developed by the user or by Vector in the context of a customer project.

This module is also available as a variant (VT7900A FPGA) with user programmable FPGA.

Module Features

  • Includes firmware for the control of the application board
  • Automatic integration in CANoe via a configuration saved on the application board
  • Interfaces for direct control of the electronics on the application board:

    • 4 digital inputs
    • 4 digital outputs
    • 4 analog inputs
    • 4 analog outputs

  • Support for additional digital and analog interfaces on the application board, which are driven via I²C, SPI, or a 16-bit parallel bus
  • Signal lines from the application board to the DUT or other parts of the test system are accessible via connectors on the back
  • 16 LEDs for indicating device states on the front access panel
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User Programmable FPGA

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.

  • Measurement data conditioning or signal generation, which cannot be covered with the standard VT System modules functionality

  • Time critical functions can be sourced out to the FPGA hardware instead of executing them software-based with CANoe

  • Description of FPGA functionality with VHDL or via graphical schematic entry with Simulink®

  • Easy development and management of FPGA projects by support of VT System FPGA Manager

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User Programmable FPGA
Supported modules
VT1004A, VT2004A, VT2516A, VT2816, VT2848, VT7009A
FPGA series
Altera® Cyclone IV E
FPGA type
EP4CE75
FPGA size
(logic elements)
75000 LE
Usable clock frequencies
10, 40 and 80 Mhz

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Product Descriptions

Do you have technical questions and are you looking for suitable answers? Our knowledge base provides the most important FAQs for you.

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Videos

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.

Training

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!