Hybrid System Fuel Release Control
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Solution Overview
Problem
In hybrid systems with internal combustion engines and vaporized-fuel capturing/releasing apparatuses, abnormalities in the vaporized-fuel capturing/releasing apparatus lead to unsatisfactory vaporized fuel release, resulting in unnecessary engine operation and reduced fuel economy.
Innovation Solution
A control apparatus and method for a hybrid system that selectively operates the internal combustion engine to release vaporized fuel only when there is no abnormality in the vaporized-fuel capturing/releasing device, ensuring that engine operation is stopped once the release is completed, thereby preventing wasteful fuel consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the internal combustion engine is operated to release vaporized fuel when there is an abnormality in the vaporized-fuel capturing/releasing apparatus, then vaporized fuel can be released, but fuel is consumed unnecessarily and fuel economy is reduced
Solution Approach 1:
The control device monitors the operation status of the vaporized-fuel capturing/releasing apparatus and provides feedback to determine whether to operate the internal combustion engine for vaporized fuel release. When an abnormality is detected, the system receives abnormality information and adjusts engine operation accordingly, preventing unnecessary engine operation and fuel consumption while ensuring proper vaporized fuel release when the apparatus is functioning normally
Solution Approach 2:
The system dynamically adjusts the operation of the internal combustion engine based on real-time status of the vaporized-fuel capturing/releasing apparatus. The control device flexibly switches between operating the engine for vaporized fuel release and maintaining normal operation modes, optimizing fuel economy while ensuring vaporized fuel management effectiveness
2Use of energy by moving object
If the internal combustion engine is stopped to improve fuel economy, then fuel consumption is reduced, but vaporized fuel cannot be released when needed
Solution Approach 1:
The control device continuously monitors both engine operation status and vaporized-fuel apparatus status, using feedback signals to make intelligent decisions. When vaporized fuel release is needed and the apparatus is normal, the system activates engine operation; when the apparatus is abnormal or not needed, the engine remains stopped, maintaining fuel economy while ensuring vaporized fuel release reliability
Data Source
AI summary
The invention relates to a control apparatus for a hybrid system that output engine drive force and electric motor drive force, and selectively performs an engine operation mode in which at least the engine is operated, and an engine operation stop mode in which engine operation is stopped. In cases where release of vaporized fuel captured in a vaporized-fuel capturing/releasing device is required, when the engine is being operated, release of vaporized fuel is started if there is no abnormality in the vaporized-fuel capturing/releasing device, and operation of the engine is continued to release the vaporized fuel until condition for terminating release of the vaporized fuel is satisfied; and in cases where release of the vaporized fuel is required, when the engine is not being operated, operation of the engine is started and release of the vaporized fuel is started if there is no abnormality in the vaporized-fuel capturing/releasing device.