18364677. FILTER ABNORMALITY DETERMINATION SYSTEM simplified abstract (TOYOTA JIDOSHA KABUSHIKI KAISHA)
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 18364677 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 outputs a detection value corresponding to 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 during imbalance control, and a determination unit that assesses filter abnormality based on the detection value of the sensor corresponding to the air-fuel ratio of the exhaust gas from the cylinder during imbalance control.
Potential Applications
This technology could be applied in automotive industry for monitoring and diagnosing filter abnormalities in internal combustion engines.
Problems Solved
This technology helps in early detection of filter abnormalities in exhaust systems, allowing for timely maintenance and preventing potential engine damage.
Benefits
- Improved engine performance - Reduced maintenance costs - Enhanced engine longevity
Potential Commercial Applications
"Filter Abnormality Determination System for Internal Combustion Engines" could be used in automotive manufacturing, maintenance, and repair industries.
Possible Prior Art
There may be prior art related to exhaust gas monitoring systems in internal combustion engines, but specific examples are not provided in the abstract.
Unanswered Questions
How does the determination unit differentiate between normal and abnormal filter conditions based on the sensor data?
The patent application does not elaborate on the specific criteria or algorithms used by the determination unit to determine filter abnormality.
Are there any potential safety implications of a filter abnormality in an internal combustion engine exhaust system?
The abstract does not address the potential safety risks associated with a malfunctioning filter in the exhaust system.
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.
