Location History:
- Kariya, JP (2008 - 2011)
- Chiryu, JP (2012)
Company Filing History:
Years Active: 2008-2012
Title: The Innovations of Tsutomu Soga
Introduction
Tsutomu Soga is a notable inventor based in Kariya, Japan. He has made significant contributions to the field of internal combustion engine technology. With a total of 3 patents to his name, Soga's work focuses on improving exhaust gas purification systems.
Latest Patents
One of Soga's latest patents is an exhaust gas purification device for internal combustion engines. This invention features a first intake air control mode that sets the intake throttle valve to a fully-opened state while the EGR valve is nearly fully-closed. This mode is activated when the DPF temperature and particulate matter deposition quantity exceed predetermined values, the engine is in a no-injection operation state, and the engine rotation speed is above a specific threshold. Additionally, a second intake air control mode is employed when the engine rotation speed is lower than the predetermined value, adjusting the intake throttle valve to a fully-closed state and the EGR valve to a fully-opened state.
Another significant patent by Soga is an unburned fuel amount-estimating device in engines and a temperature-estimating device for exhaust emission purifiers. This invention includes an ECU that estimates the unburned fuel amount emitted from the engine after combustion, based on required engine operating conditions. It also features an exhaust gas temperature sensor that detects the temperature of exhaust gases emitted directly from the engine. A program compensates for estimation errors related to the unburned fuel amount based on the difference between required and actual engine operating conditions.
Career Highlights
Tsutomu Soga is currently employed at Denso Corporation, a leading company in automotive technology. His work at Denso has allowed him to focus on innovative solutions for improving engine efficiency and reducing emissions.
Collaborations
Soga has collaborated with notable coworkers such as Shigeto Yahata and Shinichirou Okugawa. Their combined expertise has contributed to the advancement of technologies in the automotive sector.
Conclusion
Tsutomu Soga's contributions to the field of internal combustion engines demonstrate his commitment to innovation and environmental sustainability. His patents reflect a deep understanding of engine dynamics and a drive to improve air quality through advanced technology.