Toyota jidosha kabushiki kaisha (20240133332). FILTER ABNORMALITY DETERMINATION SYSTEM simplified abstract
Contents
- 1 FILTER ABNORMALITY DETERMINATION SYSTEM
- 1.1 Organization Name
- 1.2 Inventor(s)
- 1.3 FILTER ABNORMALITY DETERMINATION SYSTEM - A simplified explanation of the abstract
- 1.4 Simplified Explanation
- 1.5 Potential Applications
- 1.6 Problems Solved
- 1.7 Benefits
- 1.8 Potential Commercial Applications
- 1.9 Possible Prior Art
- 1.10 Unanswered Questions
- 1.11 Original Abstract Submitted
FILTER ABNORMALITY DETERMINATION SYSTEM
Organization Name
toyota jidosha kabushiki kaisha
Inventor(s)
Junpei Shouji of Toyota-shi (JP)
FILTER ABNORMALITY DETERMINATION SYSTEM - A simplified explanation of the abstract
This abstract first appeared for US patent application 20240133332 titled 'FILTER ABNORMALITY DETERMINATION SYSTEM
Simplified Explanation
The patent application describes a system for determining abnormality in a filter in an internal combustion engine exhaust system based on oxygen concentration in the exhaust gas.
- The system includes an internal combustion engine with multiple cylinders, an exhaust passage connected to the engine, and a filter in the exhaust passage that detects oxygen concentration in the exhaust gas.
- A determination device in the system includes a control unit that adjusts the air-fuel ratio of one cylinder differently from another cylinder, and a determination unit that analyzes the sensor data during this adjustment to determine if the filter is abnormal.
Potential Applications
This technology can be applied in automotive industry for monitoring and diagnosing the condition of exhaust filters in internal combustion engines.
Problems Solved
1. Efficient detection of abnormality in exhaust filters. 2. Improved maintenance and performance monitoring of internal combustion engines.
Benefits
1. Early detection of filter issues can prevent costly repairs. 2. Optimal engine performance can be maintained by timely identification of filter abnormalities.
Potential Commercial Applications
Optimized engine performance monitoring systems for automotive manufacturers and service centers.
Possible Prior Art
Prior art related to exhaust gas monitoring systems in internal combustion engines may exist, but specific information is not provided in the abstract.
Unanswered Questions
How does the system differentiate between normal and abnormal filter conditions based on the oxygen concentration data?
The system likely uses predetermined thresholds or algorithms to analyze the sensor data and determine abnormality.
What are the potential implications of false positives or false negatives in the determination of filter abnormality?
False positives could lead to unnecessary maintenance costs, while false negatives could result in undetected filter issues causing engine damage. The system's accuracy in detecting abnormalities is crucial for reliable performance.
Original Abstract Submitted
a filter abnormality determination system includes: an internal combustion engine having a plurality of cylinders; an exhaust passage connected to the internal combustion engine; a filter provided in the exhaust passage and opposed to the filter and outputting a detection value corresponding to an oxygen concentration in the exhaust gas; and a determination device, wherein the determination device includes a control unit that executes an imbalance control for controlling an air-fuel ratio of one of the plurality of cylinders to a value different from an air-fuel ratio of another of the plurality of cylinders; and a determination unit for determining whether the filter is abnormal based on a detection value of the sensor corresponding to an air-fuel ratio of an exhaust gas of the one cylinder during execution of the imbalance control.
