Location History:
- Ypsilanti, MI (US) (1989)
- Ann Arbor, MI (US) (1993 - 2002)
Company Filing History:
5 out of 1,986 
1 out of 283 
1 out of 1,024 Years Active: 1989-2002
Title: The Innovations of James R. Tamm
Introduction
James R. Tamm is a notable inventor based in Ann Arbor, MI (US). He holds a total of 7 patents that showcase his contributions to the field of automotive technology. His work primarily focuses on improving vehicle air conditioning systems and internal combustion engine performance.
Latest Patents
One of Tamm's latest patents is titled "A/C clutch short engagement control method at engine start without lock-up sensor." This invention provides a compressor control system and method for vehicle air conditioners. The control device manages the engagement of a compressor clutch member during engine start-up to effectively discharge liquid refrigerant from the compressor. Notably, the system allows for disengagement of the clutch member if operating conditions suggest compressor lock-up, all without the need for a dedicated lock-up sensor.
Another significant patent is "Method of determining the engine charge temperature for fuel and spark control of an internal combustion engine." This technique enables the determination of charge air temperature within an intake manifold without relying on a dedicated temperature sensor. It utilizes a non-linear dynamic model based on thermal transfer concepts and system identification techniques. The model predicts charge air temperature at regular intervals using various physical measurements from the vehicle, including inlet air temperature and engine coolant temperature.
Career Highlights
Throughout his career, James R. Tamm has worked with prominent companies such as Chrysler Corporation and Chrysler Motors Corporation. His experience in these organizations has contributed to his expertise in automotive innovations.
Collaborations
Tamm has collaborated with notable individuals in the field, including Gang Chen and Terry R. Gutermuth. Their collective efforts have further advanced the innovations in automotive technology.
Conclusion
James R. Tamm's contributions to automotive technology through his patents and collaborations highlight his significant role as an inventor. His work continues to influence the efficiency and performance of vehicle systems.