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With more than 20 years of experience in HIL simulation, dSPACE has a wide range of knowledge regarding specific HIL topics.

 
Electrical Failure Simulation
With electrical failure simulation in a HIL environment, realistic electrical errors can be inserted in the device under test under repeatable conditions. The components of the dSPACE Failure Insertion Unit (FIU) are flexible enough to allow tests which are difficult to conduct under real-world conditions, such as open wire during braking.
 
Electrical failure simulation with FIUs can be performed with all dSPACE simulator systems. The following failure conditions can be used:
  • Open circuit
  • Short circuit to ground
  • Short circuit to battery voltage or between ECU pins
  • Bouncing for all failures
 
Electrical failure simulation on the HIL simulator is usually performed on all channel types: actuator, sensor and bus channels. With actuator channels, you can specify whether to reject the load when switching to the failure potential to avoid an open circuit state. Because the sensor signals are simulated, a large proportion of failures can be simulated by the model itself. An electrical FIU is used if the ECU has to capture and evaluate currents, or to simulate an open circuit.
 
Restbus Simulation
In restbus simulation, the simulator emulates the communication with nodes that are missing from the communication network. The communication databases or matrices which are necessary for operating an ECU are used for this. This enables you to deliberately input bus message errors and test the behavior of the bus network components reproducibly.
 
With a restbus, you can start simulation runs earlier, even if not all ECUs are available. They are simulated and then replaced by their real counterparts later on. If the ECUs are tested separately with different dSPACE simulator systems, you can easily connect the systems afterwards to create a networked setup.

Electric Drive Technology

dSPACE provides a wide range of test systems for developing and testing ECUs for electric drives. Depending on the testing purpose and the project conditions, you can access the ECU at different levels, such as signal, electric power, and mechanical level.

dSPACE systems are easy to get up and running – however, if a project is more complex, if individual solutions are needed or if there is high time pressure, you can trust dSPACE's fast, competent and reliable engineering and consulting services. 

Service (example) Details (example)
Turn-key HIL systems (from selective services to complete turn-key systems)
  • Concept design, hardware planning, project management
  • Signal list / wiring harness specification
  • Development of customer-specific hardware (e.g. lambda probe simulation, ECU mount, gearbox mount, valve signal detection unit, 1-D and 3-D motion platforms, steering test benches, piggy-back modules for FPGA Base Board)
  • Development of customer-specific software (e.g. Simulink® models)
  • Open- and closed-loop HIL system tests
  • On-site commissioning
  • Hands-on training
  • Resident engineers
Simulation models
  • Model parameterization/calibration and model validation
  • Model integration
  • Model development and model adaptation
Test automation
  • Concept design of test scenarios and test cases
  • Hands-on training
  • Test process support and test automation engineering
Special solutions, for example, HIL system development for electric-drive applications

Implementing Mechatronic Test Benches

If in some HIL test cases, it is not possible to access the ECU only via its electronic interfaces, dSPACE offers services for highly dynamic test benches for mechatronic components and systems.

   

Further Information Success Stories