Fuel Cell Control Device for Early Vehicle Movement
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Solution Overview
Problem
Existing fuel cell systems for moving objects do not consider the state of the fuel cell during activation, leading to inefficiencies and delayed power availability.
Innovation Solution
A fuel cell system with a control device that determines whether predetermined conditions for fuel cell activation are met, allowing a battery-driven mode when conditions are satisfied and prohibiting it when not, enabling the fuel cell to be started up as needed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the fuel cell system waits for fuel cell activation before allowing movement, then the fuel cell can be properly activated, but the moving object cannot start moving earlier
Solution Approach 1:
The control device permits battery-driven mode before the fuel cell is fully activated, allowing the moving object to start moving in advance. This preliminary action enables the system to begin operation using the secondary battery while the fuel cell activation process is ongoing, thus reducing the time loss without compromising the eventual fuel cell activation.
2Loss of time
If the control device allows battery-driven mode without checking fuel cell conditions, then the moving object can start moving earlier, but the secondary battery may be depleted
Solution Approach 1:
The control device determines whether to permit battery-driven mode based on the activation state of the fuel cell. This feedback mechanism ensures that battery-driven mode is only allowed when the fuel cell activation process has been initiated and is progressing, preventing complete battery depletion while still enabling earlier movement compared to waiting for full activation.
3Reliability
If the fuel cell activation process is completed before allowing movement, then the fuel cell is ready to power the object, but the moving object cannot move earlier
Solution Approach 1:
The system initiates fuel cell activation in advance and permits battery-driven mode during the activation process. This preliminary action allows the moving object to achieve productivity (movement) before the power supply (fuel cell) is fully ready, thus resolving the contradiction between reliability and productivity.
Data Source
AI summary
A fuel cell system includes a fuel cell and a secondary battery used as power sources of a power supply target object, and a control device for controlling driving of the power supply target object. The control device determines whether a predetermined condition required for activation of the fuel cell is satisfied, permits a battery-driven mode in which the power supply target object is driven using only the secondary battery when the predetermined condition is satisfied, and prohibits the battery-driven mode when the predetermined condition is not satisfied.