Dynamic Failure Countermeasure Update for In-Vehicle Devices

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Advanced drive assist systems face challenges in selecting appropriate countermeasures for vehicle apparatus failures due to changing traveling environments, as static failure correspondence tables become impractical with increasing combinations of conditions, and dynamic maps do not provide countermeasure information.

Innovation Solution

An in-vehicle device with a storage unit for a failure correspondence table and a failure countermeasure update unit that dynamically updates countermeasures based on changes in the vehicle's traveling environment, ensuring suitable responses to apparatus failures.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If countermeasures corresponding to every type of traveling environment are defined beforehand in the failure correspondence table, then it is possible to select appropriate countermeasures for various conditions, but the number of combinations of conditions increases explosively making construction difficult and impractical

Engineering Contradiction:

Improvecoverage of countermeasures for various traveling environmentsVSAvoidcomplexity of failure correspondence table construction

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent segments the failure correspondence table into multiple hierarchical levels: basic countermeasures applicable to all conditions, and detailed countermeasures for specific traveling environments. This segmentation allows the system to cover various conditions without requiring a complete enumeration of all possible condition combinations, thereby reducing construction complexity while maintaining adaptability.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent performs preliminary classification of traveling environments into categories (e.g., urban, rural, highway) and pre-defines countermeasures for each category. This preliminary action reduces the need to handle every individual condition separately, making the table construction more manageable while still providing environment-specific countermeasures.

Inventive Principle:

Principle #10Preliminary action

2Ease of manufacture

If a static failure correspondence table is used, then the table construction is simplified, but it cannot adapt to changing traveling environments and may not provide safe countermeasures

Engineering Contradiction:

Improveease of failure correspondence table constructionVSAvoidadaptability to changing traveling environments

Core Design Contradiction:

Ease of manufactureVSAdaptability or versatility

Solution Approach 1:

The patent introduces dynamics into the failure correspondence table by enabling automatic updates based on current traveling environment data. The system dynamically adjusts the countermeasures by comparing current environmental conditions with predefined conditions, allowing the table to adapt to changing environments without requiring manual reconstruction, thus maintaining both ease of construction and adaptability.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent implements a feedback mechanism where the system continuously monitors traveling environment conditions and automatically updates the failure correspondence table based on detected changes. This feedback loop ensures the table remains adaptive to current conditions while maintaining a manageable construction process through automated rather than manual updates.

Inventive Principle:

Principle #23Feedback

3Adaptability or versatility

If the failure correspondence table is updated frequently to reflect current conditions, then the adaptability to current traveling environment is improved, but the processing time and computational load increase

Engineering Contradiction:

Improveresponsiveness to current traveling environmentVSAvoidprocessing time for countermeasure selection

Core Design Contradiction:

Adaptability or versatilityVSLoss of time

Solution Approach 1:

The patent applies partial action by updating only the necessary portions of the failure correspondence table based on detected changes in traveling environment, rather than performing a complete table reconstruction. This approach maintains responsiveness to current conditions while minimizing processing time and computational load by focusing updates on affected areas only.

Inventive Principle:

Principle #16Partial or excessive action

Solution Approach 2:

The patent performs preliminary classification of traveling environments and pre-organizes countermeasures by environment type. When an update is needed, the system only needs to match current conditions against predefined categories and apply corresponding countermeasures, significantly reducing processing time compared to evaluating all possible conditions from scratch.

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS11521437B2In-vehicle device, information processing method, and computer readable medium

Publication Date: 2022.12.06 MITSUBISHI ELECTRIC MOBILITY CORP

AI summary

A storage device (301) stores a failure correspondence table (405) that indicates a countermeasure for a time when a failure occurs in an apparatus mounted on a vehicle (100). A failure countermeasure update unit (404) updates the countermeasure indicated in the failure correspondence table (405) in accordance with a change in a traveling environment of the vehicle (100).