Vehicle Control Apparatus Process Recovery Logic
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Solution Overview
Problem
Existing vehicle control systems face prolonged restoration times due to the restart of processes with dependency relationships not being considered, leading to inefficient handling of abnormality occurrences.
Innovation Solution
A control apparatus with a process execution management processor, a process abnormality monitoring processor, and a recovery control processor that temporarily stops and restarts processes based on detected abnormalities, ensuring only the affected process is restarted, thereby reducing overall system restoration time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If all processes including dependent processes are restarted when an abnormality is detected, then system reliability is improved, but system restoration time increases
Solution Approach 1:
The patent segments the process restart operation into two distinct groups: abnormal processes that must be restarted, and normal dependent processes that are temporarily suspended. This segmentation allows the system to restart only the necessary abnormal processes while avoiding the time-consuming restart of normal processes, thereby resolving the contradiction between ensuring system reliability and minimizing restoration time.
Solution Approach 2:
The patent implements preliminary action by temporarily suspending normal dependent processes before restarting abnormal processes. This preliminary suspension prevents the need to restart normal processes after the abnormal ones, as their starting conditions will be重新 evaluated. This advance action significantly reduces the total restoration time while maintaining system reliability.
2Productivity
If processing is resumed immediately after abnormality detection, then productivity is improved, but system stability deteriorates
Solution Approach 1:
The patent implements a feedback mechanism where the process execution management processor continuously monitors the execution states of processes and their starting conditions. After temporarily suspending normal dependent processes and restarting abnormal ones, the system re-evaluates whether the starting conditions for normal processes are satisfied. This feedback loop ensures that processing is resumed only when the system state is stable and appropriate, balancing productivity improvement with system stability.
3Reliability
If dependency relationships between processes are considered, then system reliability is improved, but device complexity increases
Solution Approach 1:
The patent implements self-service by enabling the process execution management processor to automatically manage the complex dependency relationships between processes. The system autonomously determines which processes are abnormal, which are normal and dependent, temporarily suspends appropriate processes, and re-evaluates starting conditions. This automated self-management approach handles the complexity of dependency relationships without requiring additional external control mechanisms, thus improving reliability while keeping the control architecture practical.
Data Source
AI summary
A control apparatus is provided with a recovery control unit that issues an instruction saying that when there exists a process whose starting condition is an execution state of a process in which an abnormality has been detected, all of processes including the process whose starting condition is the execution state of the process in which the abnormality has been detected should temporarily be stopped and saying that after the process in which the abnormality had been detected has restarted, execution of the processes that have temporarily been stopped should be resumed, and a process execution management unit that restarts the process in which the abnormality has been detected and resumes the processes that have temporarily been stopped, in response to the instruction from the recovery control unit.