Vehicle Control Learning Guard Update for Stable Controllability
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Solution Overview
Problem
In conventional vehicle control apparatuses, the learning value is not updated appropriately when the guard value is updated, leading to reduced controllability due to deviations from the updated guard value range, causing issues in executing control operations effectively.
Innovation Solution
A control apparatus with an update control portion that obtains a new guard value from an external device and updates the guard value before the learning control operation, ensuring the learning value is within the new guard-value range, and updates the control program concurrently to maintain control operation efficacy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the guard value is updated concurrently with the control program update, then the control program can utilize improved guard value parameters, but the learning value may deviate from the updated guard value range causing reduced controllability
Solution Approach 1:
The update control portion performs preliminary action by limiting the learning value by the new guard value before the learning control operation is executed. This ensures that when the control program uses the updated guard value, the learning value is already within the acceptable range, preventing controllability issues.
Solution Approach 2:
The system implements feedback by continuously monitoring whether the learning value falls within the guard value range. When a deviation is detected, the update control portion intervenes to limit the learning value, creating a closed-loop control mechanism that maintains reliability.
2Productivity
If the learning value is not updated after guard value update, then the updated guard value can be applied immediately, but the control operation effectiveness is reduced due to learning value deviation
Solution Approach 1:
Instead of waiting for the learning control operation to complete before applying the new guard value, the system performs preliminary limitation of the learning value by the new guard value. This allows immediate application of the updated guard value while ensuring control operation effectiveness is maintained.
3Reliability
If the learning value is rewritten by the updated guard value before learning control operation, then controllability is maintained, but additional processing steps are required
Solution Approach 1:
The update control portion merges the guard value update process with the learning value limitation process. By combining these functions into a single control module, the system maintains reliability without proportionally increasing overall system complexity.
Data Source
AI summary
A vehicle control apparatus includes a learning control portion configured to execute a learning control operation, and to limit a learning value obtained through the learning control operation, by a guard value, and an update control portion configured to obtain a new guard value from an external device, and to update the guard value to the new guard value. The update control portion limits the learning value by the new guard value, prior to execution of the learning control operation, such that the learning value is rewritten, by the update control portion, to a value within a new guard-value range defined by the new guard value in a case in which the learning value is deviated from the new guard-value range, and such that the learning value is kept unchanged by the update control portion in a case in which the learning value is within the new guard-value range.