Hiroyuki Okajima

Title: Hiroyuki Okajima: Vehicle Engine Control and Transmission Innovation.

Introduction

Hiroyuki Okajima is an inventor associated with Utsunomiya, Japan, and Honda Giken Kogyo Kabushiki Kaisha. His patent work addresses vehicle engine control and the hydraulic pressure needed for reliable transmission operation.

Latest Patents

Okajima is credited with 1 patent, titled “Control System for Stopping and Starting Vehicle Engine.” The invention describes a system that automatically stops and restarts a vehicle engine under specified conditions while maintaining adequate hydraulic line pressure in the transmission.

The system uses an engine-driven mechanical oil pump to supply pressure during engine operation and an electric oil pump to provide oil when the engine is stopped. Its control section can prohibit an automatic engine stop if the transmission’s hydraulic line pressure is at or below a predetermined threshold. This approach is designed to help secure normal transmission pressure during stop-start operation.

Career Highlights

Okajima’s documented patent work connects automotive engine stop-start controls with transmission hydraulics. The invention reflects an effort to coordinate engine operation and oil-pressure supply in a vehicle system.

Collaborations

The patent lists Koichi Fushimi and Kazuhiko Kitano among Okajima’s coworkers. The work is associated with Honda Giken Kogyo Kabushiki Kaisha.

Conclusion

Hiroyuki Okajima’s patent focuses on maintaining transmission hydraulic pressure while a vehicle’s engine automatically stops and restarts, highlighting a practical area of automotive engineering innovation.