Dual-Fuel Engine Controller Optimizing Combustion Ratio
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Solution Overview
Problem
Existing fuel optimization systems for dual-fuel engines face challenges in efficiently managing fuel usage and emission control, particularly in ensuring that one fuel type does not deplete before another, while also considering varying fuel costs and availability along a route, which can lead to operational inefficiencies and emission non-compliance.
Innovation Solution
A method and system that utilize a fuel controller to determine and adjust the fuel combustion ratio based on route information and fuel market data, ensuring that the first fuel does not deplete before the second fuel, and optimizing fuel delivery to maintain emissions within predefined thresholds, using a combination of sensors and computational algorithms to manage engine performance and emissions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a dual-fuel engine operates with multiple fuel types, then fuel flexibility and emission control are improved, but fuel management complexity increases
Solution Approach 1:
The system dynamically adjusts the fuel combustion ratio parameter based on route information, fuel availability, and emission requirements. The fuel controller modifies the proportion of first fuel to second fuel in real-time, changing operational parameters to optimize both fuel flexibility and manage complexity through automated parameter management.
Solution Approach 2:
The fuel management system incorporates feedback mechanisms where the fuel controller continuously monitors fuel levels, route progress, and emission data. Based on this feedback, the system automatically adjusts fuel delivery ratios to prevent depletion of critical fuel types while maintaining emission compliance, thereby managing complexity through closed-loop control.
2Productivity
If fuel combustion ratio is optimized based on route information, then fuel economy is improved, but risk of fuel depletion increases
Solution Approach 1:
The system performs preliminary analysis of route information, fuel station locations, and consumption patterns before optimizing the fuel combustion ratio. By pre-calculating fuel requirements and identifying potential depletion risks, the system can adjust fuel mixing ratios in advance to ensure adequate fuel levels are maintained while still achieving fuel economy improvements.
Solution Approach 2:
The fuel management system incorporates safety margins and cushioning mechanisms by maintaining minimum fuel level thresholds for each fuel type. The controller adjusts combustion ratios to ensure that even under optimized conditions, sufficient fuel reserves remain to prevent depletion, thereby cushioning against the risks of aggressive fuel economy measures.
3Object-affected harmful factors
If emissions are maintained within predefined thresholds, then environmental compliance is improved, but fuel consumption increases
Solution Approach 1:
The system dynamically adjusts the fuel combustion ratio based on real-time conditions including route characteristics, ambient temperature, engine load, and emission thresholds. Rather than maintaining a fixed conservative ratio that would increase fuel consumption, the system adapts the fuel mix dynamically to achieve the minimum necessary emission compliance while optimizing fuel efficiency for each operating condition.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach ensures efficient fuel utilization, prevents engine operation from being compromised by fuel depletion, and maintains emissions within regulatory limits, thereby optimizing fuel economy and compliance with emission standards.
Implementation Method 1
combusting the first fuel and the second fuel at a fuel combustion ratio in at least one cylinder of the engine
Data Source
AI summary
Embodiments of methods and systems related to operating a mobile asset are provided. In one example, a method for operating a mobile asset includes supplying an engine with a fuel controller a first amount of a first fuel and a second amount of a second fuel and combusting the first fuel and the second fuel at a fuel combustion ratio in at least one cylinder of the engine, the first amount and the second amount being selected based on route information for a route along which the mobile asset is operable to travel and a projected exhaustion of the first fuel that does not precede a projected exhaustion of the second fuel, wherein the mobile asset is unable to operate with the second fuel alone.