Fuel Cell Output Integration for Residual Fuel Balancing
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Solution Overview
Problem
Existing fuel cell vehicle systems struggle to accurately adjust fuel gas consumption in conformity with operating conditions due to preset correction ratios, leading to difficulties in equalizing residual pressures across multiple fuel cell engines.
Innovation Solution
An output integration system that includes a control device to adjust the generated electrical output of each fuel cell stack, minimizing the difference in residual fuel amounts across multiple fuel cell engines, thereby equalizing fuel levels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a preset correction ratio is used to adjust the required output of each fuel cell engine, then the correction process is simple, but the fuel gas consumption cannot be accurately adjusted to conform to operating conditions
Solution Approach 1:
The patent transitions from a static preset correction ratio to a dynamic correction ratio that is calculated in real-time based on actual operating conditions. The control device continuously monitors operating conditions (load, temperature, humidity) and calculates the correction ratio dynamically using a predetermined formula, allowing the system to adapt to changing conditions and accurately control fuel gas consumption while maintaining operational simplicity.
2Ease of operation
If a preset correction ratio is used to equalize residual pressures, then the equalization process is straightforward, but it is difficult to adjust fuel gas consumption accurately in conformity with operating conditions
Solution Approach 1:
The system employs a dynamic correction ratio that automatically adapts to different operating conditions. The control device calculates the correction ratio based on real-time monitoring of load, temperature, and humidity, enabling the equalization process to remain straightforward while simultaneously adapting to varying operating conditions and accurately controlling fuel gas consumption.
Solution Approach 2:
The patent implements a feedback mechanism where the control device continuously monitors operating conditions and residual pressures, calculates the appropriate correction ratio based on a predetermined formula, and adjusts the required output of each fuel cell engine accordingly. This closed-loop control ensures accurate fuel gas consumption adjustment while maintaining simple equalization operation across different operating conditions.
3Device complexity
If the required output is corrected using a fixed correction ratio, then the calculation is simple, but the operable time period of the output integration system cannot be maximized
Solution Approach 1:
The patent replaces fixed correction ratios with dynamic correction ratios calculated in real-time based on operating conditions. The control device uses a predetermined formula incorporating load, temperature, and humidity to calculate the correction ratio, maximizing the operable time period of the fuel cell engines while keeping the calculation process computationally simple and efficient.
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 extends the operable time period of the fuel cell engine system by ensuring balanced fuel levels, enhancing operational efficiency and longevity.
Implementation Method 1
each of the fuel cell engines includes a fuel cell stack, a fuel tank configured to store a fuel gas supplied to the fuel cell stack
Data Source
AI summary
A generated electrical output of fuel cell stacks is adjusted, in a manner so that a difference in a residual amount of fuel in fuel tanks between fuel cell engines is reduced.