ANOMALY DETERMINATION DEVICE FOR INTERNAL COMBUSTION ENGINE

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ANOMALY DETERMINATION DEVICE FOR INTERNAL COMBUSTION ENGINE - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240344484 titled 'ANOMALY DETERMINATION DEVICE FOR INTERNAL COMBUSTION ENGINE

Simplified Explanation: The patent application describes a system where an Electronic Control Unit (ECU) triggers a fuel cut-off time ignition process to stop fuel injection temporarily by generating a spark discharge from the ignition device. The ECU identifies a stuck-open condition in the fuel injection valve of an internal combustion engine when there is a significant rotation fluctuation during the fuel cut-off time ignition process.

The ECU executes a fuel cut-off time ignition process to temporarily halt fuel injection.
A spark discharge is generated by the ignition device during the fuel cut-off.
The ECU detects a stuck-open condition in the fuel injection valve based on rotation fluctuation.
The stuck-open determination value is predefined to identify the stuck-open condition accurately.

Potential Applications: 1. Automotive industry for improving engine performance and efficiency. 2. Industrial machinery for precise control of fuel injection processes.

Problems Solved: 1. Efficient detection of stuck-open conditions in fuel injection valves. 2. Preventing engine malfunctions due to stuck-open valves.

Benefits: 1. Enhanced engine reliability and performance. 2. Reduced maintenance costs by early detection of valve issues.

Commercial Applications: The technology can be utilized in automotive manufacturing for developing advanced engine control systems, leading to more reliable and efficient vehicles in the market.

Questions about the Technology: 1. How does the ECU determine the rotation fluctuation amount during the fuel cut-off time ignition process? 2. What are the potential implications of a stuck-open fuel injection valve on engine performance and fuel efficiency?

Original Abstract Submitted

an ecu executes a fuel cut-off time ignition process that causes the ignition device to generate a spark discharge during a fuel cut-off for temporarily stopping fuel injection of the fuel injection valve. the ecu determines that the fuel injection valve is stuck open when a rotation fluctuation amount of an internal combustion engine during execution of the fuel cut-off time ignition process is greater than or equal to a predetermined stuck-open determination value.