Fuel Injector Drift Compensation for Stable Engine Power
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Solution Overview
Problem
Improper fuel injection due to fuel injector drift can cause engine damage and decreased performance in internal combustion engines, particularly in dual fuel systems where fuel flow rates and substitution rates affect engine output.
Innovation Solution
A method and system for calibrating fuel injectors in internal combustion engines that involves operating the injectors based on target loads, detecting engine outputs, modifying injector operations, and updating parameters to compensate for reduced power outputs, using a hybrid system with an electric motor and battery to provide power adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If fuel injector operation is modified to compensate for drift, then engine performance is improved, but device complexity increases
Solution Approach 1:
The system continuously monitors engine output and compares it against expected values, using the difference to automatically adjust fuel injector parameters. This closed-loop feedback mechanism maintains engine performance by compensating for injector drift without requiring manual intervention or complex external calibration equipment.
Solution Approach 2:
The calibration system uses the engine's own operational characteristics and output measurements to perform self-calibration. By utilizing the engine's own power output data and control signals, the system adjusts injector parameters autonomously, eliminating the need for external testing equipment or complex calibration procedures.
2Reliability
If fuel flow rate is adjusted to maintain power output, then engine performance is maintained, but loss of energy increases
Solution Approach 1:
The system dynamically adjusts fuel injector parameters such as pulse width, injection timing, and fuel flow rate based on real-time engine conditions and measured power output. By continuously optimizing these parameters to match actual engine performance, the system maintains efficient energy utilization while compensating for injector drift.
Data Source
AI summary
The present disclosure relates to a system and method for fuel injection calibration for use with a fuel injector coupled with an engine. The method includes operating the fuel injector according to a parameter for the fuel injector that corresponds to a first target load for the engine, detecting a first output of the engine while operating the fuel injector according to the parameter, modifying operation of the fuel injector, detecting a second output of the engine responsive to modifying the operation of the fuel injector, and updating the parameter based on a comparison of the first output with the second output.