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Home Home - Article
Method for Adjusting Ignition Timing Based on Cylinder Pressure in Hydrogen Engines

Method for Adjusting Ignition Timing Based on Cylinder Pressure in Hydrogen Engines

Arnes BiogradlijaBy Arnes Biogradlija11/06/20242 Mins Read
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Toyota Jidosha Kabushiki Kaisha has recently filed a patent for a novel method that aims to enhance the performance and efficiency of hydrogen engines.

This patent describes a system for adjusting ignition timing based on in-cylinder pressure measurements, a critical factor for optimizing hydrogen combustion.

Features and Improvements

The standout feature of this patent is the Engine Control Module (ECM), which calculates a peak value of in-cylinder pressure before ignition. When this pressure exceeds a predefined threshold, the ECM automatically advances the ignition timing to bring the pressure back within acceptable limits. This adjustment ensures that the engine maintains optimal performance and fuel efficiency while minimizing the risk of damaging the engine components due to excessive pressure.

Traditional engines often rely on preset ignition timings or rudimentary feedback mechanisms that do not account for real-time variations in combustion pressure. The innovation from Toyota introduces a significant improvement by offering a dynamic adjustment approach, leading to smoother and more efficient engine operation.

Potential Applications

The primary application of this patented technology is in hydrogen-powered vehicles, which are becoming increasingly important as the world shifts towards cleaner energy sources. By enhancing the precision and efficiency of hydrogen combustion, this innovation could extend the operational life of hydrogen engines and improve their overall performance.

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