Fuel Cell System Filling Failure Location Detection
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Solution Overview
Problem
Existing fuel cell and fuel consumption systems lack a method to accurately determine the location of filling failures, such as excessive temperature in fuel storage units, which can lead to incomplete or unsafe fueling processes.
Innovation Solution
A fuel cell system equipped with a storage internal state detector, transmitter, and controller that processes and records data on the fuel gas filling process, allowing for the identification of filling failures by analyzing signals and drive signals sent between the fuel cell system and the external fuel supply source.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the fuel storage unit is filled with fuel gas from an external supply apparatus, then the fuel storage unit can be replenished with fuel gas, but filling failures such as excessive temperature may occur that cannot be accurately diagnosed
Solution Approach 1:
The system implements feedback by having the external fuel supply apparatus transmit filling process information to the fuel cell system, which then records this information in a recording unit. This feedback loop enables the system to monitor and analyze filling failures by comparing transmitted information with actual system state, allowing accurate diagnosis of failure locations between the external supply apparatus and the fuel cell system.
Solution Approach 2:
The controller and recording unit serve as intermediaries between the external fuel supply apparatus and the fuel storage unit. The controller manages the filling process and the recording unit stores filling information, creating an intermediary layer that enables detailed monitoring and analysis of the filling process to detect and diagnose failures accurately.
2Measurement precision
If filling process information is recorded for failure analysis, then accurate failure diagnosis becomes possible, but the controller requires larger storage capacity
Solution Approach 1:
The filling information is extracted and recorded in a dedicated recording unit separate from the main controller operations. This extraction allows the controller to maintain accurate failure analysis capabilities while managing storage requirements by isolating the data recording function.
Solution Approach 2:
The system records filling information temporarily in the recording unit for failure analysis purposes. When not needed for active diagnosis, this data can be discarded or archived, allowing the controller to maintain precise failure analysis capability without permanently requiring large storage capacity.
Data Source
AI summary
A fuel cell system and a fuel consumption system verify the location of a filling failure at a time that a fuel gas filling process suffers from such a filling failure. Either one of encoded data indicating an infrared radiation signal related to the fuel gas filling process, which is sent from a vehicle to an external hydrogen station, and a drive signal, which comprises a train of binary pulses converted from the encoded data, is recorded in a recording unit of the vehicle.