Download SYMBOLS Sonata

Bond Graph



HighTech Consultants is a faculty entrepreneur firm of STEP, I.I.T, Kharagpur. Its main objectives are technology transfer to industries through creation of modeling, simulation and control software and providing modeling and simulation solutions.


HighTech Consultants have produced some of the best bond graph modeling, simulation and control systems software namely SYMBOLS for DOS, SYMBOLS 2000, SYMBOLS Shakti and finally the advanced multi operating system version SYMBOLS Sonata. SYMBOLS 2000 and SYMBOLS Shakti have gained immense popularity in academic, industrial R&D and defense institutes. Besides, HighTech also develops custom software for various industries and defense sectors.


SYMBOLS acronym stands for SYstem Modeling by BOndgraph Language and Simulation. It is a modeling, simulation and control systems software for a variety of scientific and engineering applications. Created over 25 years of research in system modeling, SYMBOLS is capable of handling large systems with interplay of multi energy domains and control paradigms. Being a powerful research tool, it can help avoid unaffordable, sophisticated fabrications. Yet, we can know precisely the response characteristics of the simulated system (inclusive of any defects and faults introduced at will!). Laboratories, dissertation works at masters and doctoral level in academia can benefit immensely from this software. And lastly, large size Field Problems of Industry can be modeled and simulated in such a fashion that one has to work with SYMBOLS to believe its capabilities.

SYMBOLS Sonata is the next generation modeling tool running in Microsoft Windows environment. User can easily model a system either in Bond graph form or by using its powerful object oriented encapsulation, called capsules.

Some of the worldwide users of SYMBOLS

  1. TATA Engineering and Locomotive Company - Jamshedpur, Bihar, India

  2. The Naval Postgraduate School Monterey - CA, USA

  3. Tata Bearings - Kharagpur, West Bengal , India

  4. Center for Artificial Intelligence and Robotics(CAIR) - Bangalore, Karnataka , India

  5. Research & Development Establishment (Engineers), Defence Research Development Organisation - Pune, India

  6. Mahindra & Mahindra,Tractor Division, Mumbai , India

  7. Bharat Earth Movers Limited - Kolar Gold Fields, Karnataka , India

  8. University of Jadavpur, Calcutta , India

  9. Yosu University, Korea

  10. Indian Institute of Technology – Guwahati, India

  11. Visvesvaraya Regional College of Engineering - Karnataka , India

  12. Sant Longowal Institute of Engineering and Technology - Longowal , Punjab , India

  13. Gogte Institute of Technology - Belgaum, Karnataka , India

  14. Manipal Institute of Technology, Karnataka, India

  15. University of Waterloo, Canada

  16. Thoma Consulting - Zug, Switzerland

  17. Metallurgical & Engineering Consultants (India) Limited - Ranchi, Bihar , India

  18. Indian School of Mines - Dhanbad, Bihar, India

  19. Benaras Hindu University - Uttar Pradesh, India

  20. Ecole Centrale de Lille - Lille, France

  21. Gas Turbine Research Establishment - Bangalore, India

  22. Sheffield University - U.K.

  23. Malnad College of Engineering - Hassan, India

  24. Satish Dhawan Space Centre (SHAR) (ISRO) - Sri Harikota, India

  25. Vikram Sarabhai Space Research Center (VSSC) – Trivandrum, India

  26. National Institute of Science & Technology (NIST) – Berhampur, Orissa, India.

  27. University of Texas at Austin (UTAUSTIN) – Austin, Texas, USA.

  28. Universidad Nacional de Colombia – Medellin, Colombia.

  29. Universitaire de Saint Jerome – Normandie, Marseille, France.

  30. Universite de Valenciennes et du Hainaut Cambresis – Valenciennes, France.

  31. Indian Institute of Technology – Roorki, India

  32. National Institute of Technology – Durgapur, West Bengal, India

  33. Research & Development Establishment (Engineers), DRDO - Pune, India (New Version)

  34. Defence Institute of Advanced Technology, Pune, Maharashtra, India

  35. Azad Institute of Technology – Lucknow

  36. Interactive Computer Products Pte Ltd, Singapore

  37. Mather and Platt Pumps Ltd., Pune, India

  38. Ben-Gurion University of the Negev, Israel

  39. Kinetix Solutions, Bangalore, India

  40. Dr B R Ambedkar National Institute of Technology, Jalandhar, India

  41. University of Strathclyde, U.K.

  42. Govt. College of Engineering, Aurangabad, India

  43. Indian Institute of Technology – Kharagpur, India

  44. Indian Institute of Technology – Patna, India

  45. Chitkara University – Punjab, India

  46. Titagarh Wagon Limited – 24 Parganas (North), India

  47. Virginia Commonwealth University, Virginia, USA

  48. Delhi Technological University (DTU), Delhi, India

  49. Aerial Delivery Research and Development Establishment (ADRDE), Agra, India

  50. Thapar University, Patiala, India

Competitive Advantages

  1. SYMBOLS Sonata is basically modeling and simulation software for very general class of systems residing in multi-energy domain. As a powerful research tool, it avoids unaffordable sophisticated fabrications by knowing precisely the response characteristics of simulated systems.
  2. It automatically develops mathematical models and incorporates system non-linearity and behaviors systematically.
  3. It supports activation, which is the facility to select the measurement and information transfer mode at modeling, stages itself.
  4. During simulation there is a facility for on-line parameter variation through sliders.
  5. It has got advanced post-simulation plotting facilities and facility for multiple-runs with interpolated or discrete parameter values.
  6. It can handle problems of large industries and fields problems with practically no limitation on the number of state variables.
  7. SYMBOLS Sonata allows modeler to create and incorporate sub-system modules called capsules in model of plant or bigger systems. These capsules can be used as a black box in any model. So capsules are self-explanatory, complete within itself and abstract to the level of final modelers’ implementation.
  8. Moreover the physics of a complex multi-energy system is clearly visible with all the subtle aspects giving direct approach to create system models.
  9. The control system modules of SYMBOLS Sonata is a powerful mathematical tool for modeling linear / linearized systems in analog, digital or state space domain and many more.
  10. Last but not the least, this software is capable to run in other operating systems through WINE (A translation layer - program loader capable of running Windows applications on Linux and other POSIX compatible operating systems. Windows programs running in Wine act as native programs would, running without the performance or memory usage penalties of an emulator, with a similar look and feel to other applications on your desktop. Please visit for more know-how and download).


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Copyright © HighTech Consultants,STEP, I.I.T.Kharagpur - 721 302, India
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