Vehicle Refueling Position Tracking via Exhaust SO2 Detection
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Solution Overview
Problem
Existing systems fail to accurately and timely update sulfur content data in fuel tanks of vehicles, leading to inefficient sulfur purge control and fuel efficiency deterioration due to the lack of real-time reflection of regional fuel sulfur variations.
Innovation Solution
An information communication device in vehicles detects refueling events, sulfur dioxide concentrations, and refueling positions, transmitting this data to an information management server for real-time updating of sulfur content databases, enabling accurate regional sulfur content estimation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If sulfur purge control is executed to remove sulfur accumulated in the catalytic device, then removal performance is improved, but fuel efficiency deteriorates due to increased exhaust gas temperature
Solution Approach 1:
The system performs preliminary detection of sulfur content in fuel before the catalytic device accumulates excessive sulfur. By detecting sulfur dioxide concentration in exhaust gas and referencing regional sulfur content data, the system determines the execution interval of sulfur purge control in advance, allowing sulfur removal to be performed at optimal intervals rather than reactively, thus balancing removal performance with fuel efficiency.
2Use of energy by moving object
If the execution interval of sulfur purge control is optimized based on accurate sulfur content data, then fuel efficiency is improved, but the system complexity increases due to additional detection and communication components
Solution Approach 1:
The system uses an information management server as an intermediary to store and manage regional sulfur content data. The vehicle's detection device communicates with this external server to obtain accurate sulfur content information for the refueling region, rather than maintaining a complex local database. This intermediary approach simplifies the vehicle's onboard system while enabling access to comprehensive, up-to-date sulfur content data for optimizing purge control intervals.
Solution Approach 2:
The system implements feedback by detecting sulfur dioxide concentration in exhaust gas, comparing it with regional sulfur content data from the information management server, and using this information to determine and adjust the execution interval of sulfur purge control. This closed-loop feedback mechanism enables dynamic optimization of purge timing based on actual sulfur accumulation rates, improving fuel efficiency without requiring overly complex predictive models.
3Loss of information
If a database of sulfur content is stored in advance on the Internet, then information availability is improved, but data accuracy deteriorates due to lack of real-time updates
Solution Approach 1:
The system implements feedback by having vehicles detect sulfur dioxide concentration in their exhaust gas and transmit this information to the information management server. The server uses this feedback data to update the regional sulfur content database in real-time, ensuring that the stored information reflects current fuel sulfur content conditions. This continuous feedback loop maintains both information availability and data accuracy simultaneously.
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
The system allows for real-time accumulation of sulfur content information for each region, enhancing the accuracy of sulfur purge control and improving fuel efficiency by optimizing its execution intervals.
Implementation Method 1
a concentration detection unit for detecting concentration of sulfur dioxide in an exhaust gas of the internal combustion engine after the vehicle has been refueled
Data Source
AI summary
To acquire information on the refueling position when a vehicle is refueled. A SO2 sensor detects the concentration of sulfur dioxide in the exhaust gas of the internal combustion engine after refueling. Region-by-region concentration information that associates refueling position information with information obtained by averaging sulfur dioxide concentration is transmitted to the data center. As a result, it is possible to accumulate information reflecting the properties of fuel distributed in each area in real time in the data center.