Industrial Consultancy & Sponsored Research (IC&SR) , IIT Madras
A System and a Method for Detecting Knock in Internal Combustion Engine of a Vehicle
Categories for this Invention
Category – Engine Control Systems
Applications– Automotive, Power Generation
Industry- Automotive Industry
Market- Global automotive test equipment market size was valued at USD 3.0 billion in 2020 and is expected to reach USD 3.7 billion by 2025, at a CAGR of 4.1%.
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Problem Statement
- Developing a knock detection system that doesn’t rely on dedicated devices like accelerometers or in-cylinder pressure sensors to reduce cost and maintenance.
- Designing a faster regulation mechanism to eliminate the negative effects of knocking on internal combustion engines over the long term.
- There is a need for creating a knock detection technology that provides both detection and quantification of knocking for accurate identification and swift regulation.
Technology
- The present method and system for detecting knock in internal combustion engines utilize high-frequency speed oscillations obtained from a crankshaft sensor, comparing them to pre-stored threshold amplitudes to identify knock occurrences.
- The system can regulate fuel injection and spark generation in real-time based on knock detection, preventing knock in subsequent engine cycles.
- By utilizing a filtering process and analyzing high-frequency speed oscillations, the system offers a cost-effective and efficient solution for knock detection without requiring additional dedicated sensors.
Key Features / Value Proposition
Enhanced Knock Detection:
- Utilizes high-frequency speed oscillations for accurate and timely detection of engine knocking.
Real-Time Regulation:
- Enables immediate adjustment of fuel injection and spark timing to prevent knock in subsequent engine cycles.
Cost-Efficient Solution:
- Eliminates the need for dedicated knock detection devices, reducing overall system costs.
Pre-Stored Thresholds:
- Utilizes pre-stored threshold amplitudes for comparison, ensuring adaptability to various engine operating conditions.
Comprehensive Analysis:
- Analyzes multiple engine operation cycles to determine threshold amplitudes, enhancing detection accuracy.
Seamless Integration:
- Easily integrates with existing engine control systems, minimizing implementation complexity for manufacturers.
Questions about this Technology?
Contact For Licensing
sm-marketing@imail.iitm.ac.in
ipoffice2@iitm.ac.in
Research Lab
Prof. Mayank Mittal
Prof. Ramesh A
Department of Mechanical Engineering
Intellectual Property
- IITM IDF Ref. 1852
- IN 490440 – Patent Granted
Technology Readiness Level
TRL – 3
Proof of concept stage