Hydrostatic Transmission - Dr. Peter Beater Modeling and Real-Time Simulation of Hydraulic Drives

  • Use LabVIEW to build on simulation model of a hydraulic drive for all development stages of an ECU
  • No co-simulation required
  • Optimize your design offline using the Simulation Subsystem of the C&S module
  • Run your simulation model on a real-time target, e. g. a PXI system
  • Run your simulation model on a CompactRIO FPGA at 300 kHz loop frequency
  • Download
To develop an Electronic Control Unit (ECU) with LabVIEW you need a simulation model of the hydraulic drive. Hydrostatic Transmission offers typical component models as ready to use VIs. For example: pumps, motors and valves.

A simulated system can be built easily using Hydrostatic Transmission and LabVIEW’s Control Design & Simulation Module:
1. Select the appropriate VIs from the Continuous Simulation palette
2. Place them in a Simulation Subsystem
3. Connect them according the circuit diagram
4. Enter parameters and press the Start Simulation button to compute the time response.
5. Develop your control algorithm and optimize the whole system offline on your development computer.

ECU tests may require the use of a real-time platform such as PXI. In this case, Hydrostatic Transmisison offers a second palette with VIs that are optimized for fixed step-size integration routines. These VIs are pin-compatible with the VIs used for offline simulation and can easily replace them.

Using the FPGA in a CompactRIO as real-time target, much higher loop frequencies can achieved. A third palette offers these VIs.

A case study of a hydrostatic transmission is included in the toolset demonstrating offline and real-time application.

The companion text book “Modeling and Real-Time Simulation of Hydraulic Drives” is available as kindle ebook on amazon.com.

Support Information
For technical support, please contact Dr. Beater at:
Email: beater@fh-swf.de

Disclaimer: The Third-Party Add-Ons for LabVIEW on this page are offered by independent third-party providers who are solely responsible for such products. NI shall have no responsibility whatsoever for the performance of the Third-Party Add-Ons.

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