Fuel Property Diagnostic Device Using Exhaust Filter Clogging Data
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Solution Overview
Problem
Existing fuel property diagnostic devices are unable to accurately diagnose fuel properties on a regional basis, leading to potential vehicle failures due to non-standard fuel usage across a region, as refueling facilities are limited and vehicles may be fueled with substandard fuel.
Innovation Solution
A fuel property diagnostic device that uses the number of vehicles with clogged particulate matter filters in an exhaust gas control system to diagnose fuel properties, determining if the fuel is up to standard by analyzing differential pressure across the filter and comparing it to predetermined thresholds, allowing for regional fuel quality assessment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If fuel property diagnosis is performed on a vehicle-by-vehicle basis using existing methods, then individual vehicle fuel diagnosis is possible, but regional fuel property diagnosis cannot be accurately performed
Solution Approach 1:
The patent divides the diagnosis scope from individual vehicles to regional levels by segmenting the data collection and analysis approach. It aggregates clogging data across multiple vehicles within specific regions (e.g., by prefecture or city) to enable regional fuel property diagnosis, thereby resolving the contradiction between individual vehicle diagnosis and regional diagnosis capability.
Solution Approach 2:
The patent introduces a regional aggregation layer as an intermediary between individual vehicle data and fuel property assessment. By collecting and analyzing clogging data at the regional level through this intermediary structure, the system can accurately diagnose fuel properties for specific regions while maintaining the ability to track individual vehicle contributions to the regional data pool.
2Ease of operation
If refueling facilities are limited in a region, then vehicle refueling options are restricted, but vehicles may be fueled with substandard fuel causing group failures
Solution Approach 1:
The patent implements a feedback mechanism by continuously monitoring filter clogging data from vehicles in a region and using this information to diagnose fuel quality. The system provides feedback about fuel quality issues to relevant authorities and consumers, enabling timely responses to prevent widespread vehicle failures while maintaining refueling accessibility in the region.
Solution Approach 2:
The patent replaces direct mechanical monitoring of fuel quality at refueling facilities with an indirect diagnostic system that uses exhaust filter clogging data from vehicles. This substitution allows regional fuel quality assessment without requiring physical intervention at each refueling station, maintaining operational ease while improving reliability through data-driven monitoring.
3Adaptability or versatility
If filter clogging is used as a diagnostic indicator, then regional fuel property diagnosis becomes possible, but the system complexity increases
Solution Approach 1:
The patent applies the self-service principle by utilizing the vehicle's existing exhaust gas control device and filter system to provide diagnostic information. The filter, which is already part of the vehicle's emission control system, serves dual purposes: exhaust gas purification and fuel quality indication. This eliminates the need for separate diagnostic hardware, reducing system complexity while enabling regional diagnosis capability.
Solution Approach 2:
The patent makes the exhaust filter universal by giving it multiple functions: its primary function of capturing particulate matter from exhaust gas and a secondary function of indicating fuel quality through clogging. This multi-functionality approach allows the system to achieve regional diagnosis capability without adding dedicated diagnostic components to each vehicle, thereby limiting the increase in device complexity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables accurate diagnosis of fuel properties on a regional basis, preventing vehicle failures by identifying and addressing substandard fuel usage patterns, ensuring vehicles are fueled with compliant fuel.
Implementation Method 1
the exhaust gas control device includes a filter for capturing particulate matter contained in an exhaust gas
Implementation Method 2
determine, for each vehicle, whether the filter is clogged based on a differential pressure between an upstream side and a downstream side of the exhaust gas control device
Data Source
AI summary
A fuel property diagnostic device configured to diagnose properties of fuel for a vehicle includes a computer configured to diagnose the properties of the fuel for each region based on the number of vehicles with clogging. The number of vehicles with clogging is the number of vehicles in which an internal combustion engine provided with an exhaust gas control device in an exhaust passage is mounted, the exhaust gas control device includes a filter for capturing particulate matter contained in an exhaust gas, and the filter is clogged.