EXHAUST GAS PURIFICATION CONTROL DEVICE

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EXHAUST GAS PURIFICATION CONTROL DEVICE - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240240579 titled 'EXHAUST GAS PURIFICATION CONTROL DEVICE

The exhaust gas purification controller described in the patent application is designed for a system that includes a catalyst and a supply valve for urea water. The controller is responsible for diagnosing abnormalities in the supply valve and consists of three main components: a urea water filling portion, a valve opening command portion, and an abnormality determiner.

The urea water filling portion activates the pump at the start of the system's operation to fill the supply passage with urea water.
The valve opening command portion issues a command to open the valve when the urea water pressure in the supply passage exceeds a predetermined threshold after filling has commenced.
The abnormality determiner assesses the presence of a sticking abnormality in the supply valve based on the urea water pressure following the valve opening command.

Potential Applications: - Automotive industry for diesel engine exhaust gas purification systems - Industrial applications for reducing harmful emissions from combustion processes

Problems Solved: - Efficient and accurate diagnosis of abnormalities in the supply valve - Optimal control of urea water flow in exhaust gas purification systems

Benefits: - Improved performance and longevity of exhaust gas purification systems - Enhanced environmental impact by reducing harmful emissions

Commercial Applications: Title: "Advanced Exhaust Gas Purification Controller for Automotive and Industrial Use" This technology can be utilized in automotive vehicles, power plants, and other industrial settings to enhance emission control and comply with environmental regulations.

Questions about the technology: 1. How does the exhaust gas purification controller improve the overall efficiency of the system? 2. What are the key factors to consider when implementing this technology in different industrial applications?

Frequently Updated Research: Stay updated on the latest advancements in exhaust gas purification systems, catalyst technology, and emission control strategies to maximize the benefits of this innovative controller.

Original Abstract Submitted

the exhaust gas purification controller is applied to a system with a catalyst and a supply valve for urea water. the exhaust gas purification controller performs an abnormality diagnosis of the supply valve, and includes a urea water filling portion, a valve opening command portion and an abnormality determiner. the urea water filling portion drives the pump at a start of operation of the exhaust gas purification system to start filling the supply passage with the urea water. the valve opening command portion outputs a valve opening command when a urea water pressure in the supply passage exceeds a predetermined valve opening pressure after filling the supply passage is started. the abnormality determiner determines presence or absence of a sticking abnormality of the supply valve based on the urea water pressure after the output of the valve opening command.