Company Filing History:
6 out of 6,154 
2 out of 25,983 
Years Active: 1994-1999
Title: Glenn A. Zimlich: Innovator in Catalytic Converter Technology
Introduction
Glenn A. Zimlich is a notable inventor based in Dearborn Heights, MI (US). He holds a total of 8 patents that showcase his expertise in automotive technology, particularly in catalytic converter systems. His innovative contributions have significantly impacted the efficiency and monitoring of vehicle emissions.
Latest Patents
Among his latest patents, Zimlich has developed a method and system for generating an inferred EGO signal. This system is designed for monitoring the operation of a catalytic converter in an asymmetrical Y-pipe vehicle exhaust system. It utilizes current engine airflow and engine speed readings as address inputs for a look-up table of predetermined time delay values. The addressed time delay values are used to retrieve previously stored upstream EGO sensor signals, allowing for the generation of an inferred EGO sensor signal that accounts for exhaust transport delay down the different respective exhaust pipe legs.
Another significant patent involves an air/fuel control system with catalytic converter monitoring. This control system indicates the efficiency of a catalytic converter coupled to a variable displacement engine. It activates a preselected group of cylinders in one engine operating mode and all cylinders in another. The system computes converter efficiency by analyzing the ratio of upstream sensor counts to downstream sensor counts during a designated test period.
Career Highlights
Zimlich has had a distinguished career, working with prominent companies such as Ford Motor Company Limited and Ford Global Technologies, LLC. His work has been instrumental in advancing automotive technologies that enhance vehicle performance and reduce emissions.
Collaborations
Throughout his career, Zimlich has collaborated with talented individuals, including Daniel V. Orzel and Tri T. Truong. These partnerships have contributed to the development of innovative solutions in the automotive sector.
Conclusion
Glenn A. Zimlich's contributions to catalytic converter technology and automotive engineering are noteworthy. His patents reflect a commitment to improving vehicle efficiency and emissions monitoring. His work continues to influence the automotive industry positively.