Adaptive On-Board Diagnosis Release Control
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Solution Overview
Problem
Existing onboard diagnosis systems in vehicles have limited coverage of real driving behavior, making it difficult to ensure that release conditions for reliable analysis are met, particularly when set narrowly, which conflicts with the need for adequate coverage as per regulatory requirements.
Innovation Solution
The method involves determining and actively controlling vehicle functions, such as engine status, to fulfill release conditions for onboard diagnoses, allowing for a broader range of driving behaviors to be covered and enabling more frequent diagnoses by adjusting parameters like speed and torque to meet the necessary conditions for analysis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the limits for the release of the onboard diagnosis are set too narrowly, then the physical requirements of the onboard diagnosis are safeguarded, but the coverage of the driving behavior is insufficient
Solution Approach 1:
The patent applies dynamics by making the release conditions adaptive rather than fixed. The control unit dynamically adjusts whether to actively control vehicle functions based on real-time driving conditions and historical data, allowing the system to transition between different operational states (active control vs. passive monitoring) to balance reliability requirements with driving behavior coverage
Solution Approach 2:
The patent changes parameters by introducing learnable thresholds and adaptive control strategies. Instead of using fixed release conditions, the system modifies the release criteria based on accumulated driving data, allowing the same diagnosis to be performed under varying conditions while maintaining statistical reliability through learned parameter adjustments
2Adaptability or versatility
If active intervention is made in the driving behavior to fulfill release conditions, then the coverage of driving behavior is improved, but the complexity of the control system increases
Solution Approach 1:
The patent applies universality by making the control unit perform multiple functions: it monitors driving parameters, determines release condition fulfillment, actively controls vehicle functions when needed, and learns from historical data. This multi-functional approach consolidates complexity into a single intelligent control unit rather than requiring separate systems for each function
Solution Approach 2:
The system applies self-service through its learning capability. The control unit automatically adjusts its behavior based on historical driving data without requiring external reconfiguration or manual intervention. It serves itself by continuously improving its understanding of when active control is necessary to fulfill release conditions
Data Source
AI summary
A method for on-board diagnosis in a vehicle includes a) determining whether one or more release conditions for starting an on-board diagnosis are met; b) when it is determined that at least one release condition of the one or more release conditions is not met, controlling at least one driving function in such a manner that at least one release condition is met; and c) starting the on-board diagnosis.