This inventor holds 2 USPTO granted patents and 4 published patent applications. Top assignee: Gm Global Technolgoy Operations, Inc.. Active years: 2019.
Company Filing History:
Years Active: 2019
Title: Innovations by Po-I Lee in Selective Catalytic Reduction Systems
Introduction
Po-I Lee is an accomplished inventor based in Rochester Hills, MI (US). He has made significant contributions to the field of selective catalytic reduction (SCR) systems, holding 2 patents that focus on improving the efficiency and effectiveness of these technologies.
Latest Patents
His latest patents include methods for controlling selective catalytic reduction systems. This patent describes a selective catalytic reduction device that performs intrusive steady state dosing correction (SSDC) when a NOx error between a predicted and measured downstream NOx value exceeds a threshold. The SSDC process involves detecting NOx breakthrough or NH3 slip and adapting reductant dosing accordingly. If the SSDC is insufficient, the protocol can be modified to enhance performance.
Another notable patent addresses methods for controlling and detecting catalyst poisoning in SCR devices. This invention provides strategies for detecting ammonium nitrate and/or ammonium nitrite poisoning, including monitoring the SCR inlet exhaust gas NO:NOx ratio and SCR temperature. The methods also encompass cleaning strategies to restore SCR catalyst performance, which may involve heating the catalyst composition and implementing various injection strategies.
Career Highlights
Po-I Lee is currently employed at GM Global Technology Operations, Inc., where he continues to innovate in the field of automotive technologies. His work has been instrumental in advancing SCR systems, which play a crucial role in reducing vehicle emissions.
Collaborations
He collaborates with talented coworkers, including Sarah Funk and Charles E. Dean, contributing to a dynamic team focused on cutting-edge automotive solutions.
Conclusion
Po-I Lee's contributions to selective catalytic reduction systems demonstrate his commitment to innovation and environmental sustainability. His patents reflect a deep understanding of the challenges in emissions control and offer practical solutions to enhance SCR performance.