Between Jun 05 and Jun 07, a team led by Prof. Shashikanth Suryanarayanan designed, developed and tested an indigenous, fully-functional, low-cost engine management system (EMS) supporting port fuel-injection operation for petrol-powered small vehicles.
 
Tests conducted on an industry-standard chassis dynamometer bed indicate that a vehicle fitted with the IITB EMS solution produced an order-of-magnitude less hydrocarbon emissions and comparable carbon monoxide and nitrogen oxide emissions to that of a production-quality carburetion solution. Further, the test results indicate the potential for bettering the fuel economy performance of a carburetion solution.
 
The development effort used considerations common in model-based control design. This design process is a departure from that followed by legacy EMS suppliers which depend on extensive testing of engines. Model-based design provides the benefits of reduced testing, flexibility and scalability
 
Most significantly, the effort has shown that a sub-USD 50 EMS solution can be realized. At present, solutions sourced from global players are available at a price range in excess of USD >85
 
The effort has served the following purposes.

• Building competence in the design and realization of high performance, low-cost engine management systems. Up until now, EMS design has largely been the purview of a few established global players such as Bosch, Delphi. This competence is likely to be leveraged in activities leading to the commercialization of the prototype.
• Creation of a state-of-the-art transient dynamometer test facility at IIT Bombay. The facility is equipped with a high bandwidth synchronous machine which can be utilized for transient characterization of prime-movers upto a sizing of 30kW.
• Establishing a platform for research in engine control.

The effort was funded by the Office of the Principal Scientific Advisor, Govt of India and administered by the Technology Information Forecasting and Assessment Council under the aegis of the CAR (Core Group for Automotive R&D) program.
 
 
Executive Summary
 
Pictures And Movies
 
Copyright Notice: To ensure timely dissemination of the achievements of the development effort, some material is available for viewing. Copyright for all material, inclusive of but not restricted to, documents, pictures and movie clips is retained by the Indian Institute of Technology, Bombay. All material is for viewing alone. Copying and/or reproduction of any of the material, pictures or movies is prohibited. For more information, contact Prof. Shashikanth Suryanarayanan.
 
Capacitive Discharge Ignition Driver: Open source design by Arvind Athavale (freelance designer based in Mumbai). This design may be used freely by you at your own risk. Arvind Athavale or IIT Bombay do not provide any guarantees whatsoever on its working or user safety.