Toyota Jidosha Kabushiki Kaisha

Shigehiro Sugihara

Takayoshi Kawai

Noriyasu Adachi

Shinji Sadakane

Keisuke Sasaki

Kaoru Ohtsuka

Hiroyuki Sugihara

When a stop request to the engine is issued, it is determined whether or not all of the drive cams are large cams. When it is determined that at least one of the small cams is included in the drive cams, the engine is continued to drive for a while and a switch control for switching the drive cams from the small cams to the large cams is executed within the duration. A self-holding type solenoid is used to switch between the small cams and the large cams. In the switch control, a permission to stop the engine is output at a timing when the 'pin protrudable section' of the final cylinder #has elapsed.

Growing community of inventors

Susono, Japan

Shigehiro Sugihara