Knocking Sensor and Prevention for Internal Combustion Engine

Executive Summary Effects of knocking in spark-ignition internal combustion engines range from inconsequential such as an annoying noise to completely destructive such as blasting holes through cylinder heads or pistons.  With the rise in turbo charged engines, high efficiency engines, and high performance engines in everything from lawnmowers to automobiles, knock detection and prevention has become absolutely critical. Researchers at Michigan State University have created a novel sensor for knock detection that does not add to the complexity of the engine and that is more effective, accurate and cost-efficient than currently used technology.  Description of Technology The new MSU knocking sensor technology uses a simple and cost-effective sensor design for in-cylinder measurements and feedback prevention which allows the engine to adjust firing time and other measures to prevent knocking.  Knock detection with this new sensor is more accurate than existing technology, has less problems with interference, and reduces the amount of false positives.  The technology does not require additional parts to be added to the engine, just an inexpensive upgrade of existing equipment.  Key BenefitsSimplified and more accurate knock detectionLess detection interferenceExisting equipment can be upgraded at low cost ApplicationsAutomotive EnginesRecreational Vehicle engines (snow mobiles, boats, dune buggy, etc.)Gas Lawn Mowers Patent Status:   US Patent: US6883509 B2 Licensing Rights Available Full licensing rights available. Inventors: Guoming George Zhu, Kevin D. Moran  Tech ID: TEC2015-0105

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