18449933. LEAK DIAGNOSIS DEVICE OF FUEL VAPOR TREATMENT APPARATUS simplified abstract (Toyota Jidosha Kabushiki Kaisha)
Contents
- 1 LEAK DIAGNOSIS DEVICE OF FUEL VAPOR TREATMENT APPARATUS
- 1.1 Organization Name
- 1.2 Inventor(s)
- 1.3 LEAK DIAGNOSIS DEVICE OF FUEL VAPOR TREATMENT APPARATUS - 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
LEAK DIAGNOSIS DEVICE OF FUEL VAPOR TREATMENT APPARATUS
Organization Name
Toyota Jidosha Kabushiki Kaisha
Inventor(s)
Yuusaku Nishimura of Toyota-shi (JP)
Keita Fukui of Fujinomiya-shi (JP)
Hideki Miyahara of Miyoshi-shi (JP)
LEAK DIAGNOSIS DEVICE OF FUEL VAPOR TREATMENT APPARATUS - A simplified explanation of the abstract
This abstract first appeared for US patent application 18449933 titled 'LEAK DIAGNOSIS DEVICE OF FUEL VAPOR TREATMENT APPARATUS
Simplified Explanation
The patent application describes a leak diagnosis device for a fuel vapor treatment apparatus, which includes a first diagnosis unit for leak diagnosis of a fuel tank based on tank internal pressure, a determination unit for determining valve openability, and a second diagnosis unit for canister leak diagnosis based on internal pressure.
- The first diagnosis unit performs leak diagnosis of the fuel tank by analyzing the tank internal pressure in a closed state of a sealing valve.
- The determination unit opens the sealing valve when the tank internal pressure is normal and checks for any influence on the switching valve openability.
- The second diagnosis unit performs canister leak diagnosis based on tank or canister internal pressure, depending on the determination made by the determination unit.
Potential Applications
The technology can be applied in automotive fuel vapor treatment systems to detect leaks in fuel tanks and canisters, ensuring proper functioning and safety.
Problems Solved
This technology solves the problem of efficiently diagnosing leaks in fuel vapor treatment systems, preventing potential hazards and ensuring environmental compliance.
Benefits
The benefits of this technology include improved safety, early detection of leaks, reduced emissions, and enhanced overall performance of fuel vapor treatment systems.
Potential Commercial Applications
Potential commercial applications of this technology include automotive manufacturing, fuel system maintenance services, and environmental compliance agencies.
Possible Prior Art
One possible prior art could be similar leak diagnosis devices used in other industrial applications, such as in the oil and gas industry or chemical processing plants.
Unanswered Questions
How does this technology compare to existing leak diagnosis systems in terms of accuracy and efficiency?
The article does not provide a direct comparison with existing systems, leaving the reader to wonder about the performance differences.
Are there any specific regulations or standards that this technology needs to comply with in the automotive industry?
The article does not mention any specific regulations or standards that this technology must adhere to, leaving a gap in understanding its regulatory requirements.
Original Abstract Submitted
A leak diagnosis device for a fuel vapor treatment apparatus, comprising: a first diagnosis unit that performs a leak diagnosis of a fuel tank based on a tank internal pressure in a closed state of a sealing valve; a determination unit that opens a sealing valve in a state where a purge valve and a switching valve are closed when the tank internal pressure is within a normal range, and determines whether there is an influence on the valve openability of the switching valve; and a second diagnosis unit that performs a leak diagnosis of the canister based on the tank internal pressure or the canister internal pressure when the determination unit makes a negative determination, and performs a leak diagnosis of the canister based on the canister internal pressure after closing the closed valve when the determination unit makes an affirmative determination.
