Hiroyuki Shirokisawa

Title: Hiroyuki Shirokisawa: Innovator in Internal Combustion Engine Control

Introduction

Hiroyuki Shirokisawa is a notable inventor based in Toyota, Japan. He has made significant contributions to the field of internal combustion engines, particularly through his innovative control device. His work is characterized by a focus on enhancing engine performance and efficiency.

Latest Patents

Hiroyuki Shirokisawa holds 1 patent for his invention titled "Control device for internal combustion engine." This patent describes a control device that calculates the target rotational speed of the engine. The device ensures that the target rotational speed increases as the engine coolant temperature decreases when a shutdown request is detected. The system executes racing by continuously injecting fuel until the engine reaches the target speed while the throttle valve is fully opened. Additionally, it stops fuel injection once the target speed is achieved, allowing the engine's output shaft to rotate by inertia, which helps to scavenge moisture from the cylinder walls and suppress misfire occurrences.

Career Highlights

Hiroyuki Shirokisawa is associated with Toyota Jidosha Kabushiki Kaisha, a leading automotive manufacturer. His work at Toyota has allowed him to focus on developing advanced technologies that improve engine control systems. His innovative approach has contributed to the company's reputation for engineering excellence.

Collaborations

Hiroyuki has collaborated with talented coworkers such as Shuya Ikesue and Hibiki Ueura. Their combined expertise has fostered an environment of innovation and creativity within their projects.

Conclusion

Hiroyuki Shirokisawa is a distinguished inventor whose work on internal combustion engine control devices exemplifies innovation in automotive technology. His contributions continue to influence the industry and enhance engine performance.