Y
Yasuhiko Higashiyama
Researcher at Toyota
Publications - 24
Citations - 271
Yasuhiko Higashiyama is an academic researcher from Toyota. The author has contributed to research in topics: Automatic transmission & Pinion. The author has an hindex of 9, co-authored 24 publications receiving 271 citations.
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Patent
Automatic planetary gear transmission
Toshiyuki Asada,Suzuki Toshitake,Yasunori Nakawaki,Yasuhiko Higashiyama,Akiharu Abe,Naoki Moriguchi +5 more
TL;DR: In this article, a planetary gear device having a first and a second singlepinion planetary gear unit (1, 2) and a third double-pinion unit (3), which are coaxially disposed so as to provide different speed reduction ratios, is presented.
Patent
Vehicle lock-up clutch slip control apparatus wherein slip control during vehicle deceleration is terminated if slip amount of the clutch is larger than a threshold
TL;DR: In this paper, an apparatus for controlling a lock-up clutch between a pump impeller and a turbine runner of a fluid-filled power transmitting device of a motor vehicle equipped with a fuel-cut control device for cutting a fuel supply to an engine when the engine speed is higher than a predetermined level is provided.
Patent
Apparatus for controlling engine brake force during vehicle running on downhill with released accelerator
TL;DR: An apparatus for controlling the engine brake of a motor vehicle, adapted to control the intake air quantity of the engine so as to maintain the actual vehicle speed at a desired speed is described in this paper.
Patent
Planetary gear type speed change device to provide six forward speed stages with two single pinion type simple planetary gear mechanisms
TL;DR: A planetary gear type speed change device has two simple planetary gear mechanisms positioned axially adjacent with one another with each carrier thereof being connected with each ring gear of the other, three clutches and three brakes assembled together between an input and an output rotational member so as to provide six monotonously changing gear ratios as discussed by the authors.
Patent
Speed changing gear device having two independent gear assemblies
Yasunori Nakawaki,Toshiyuki Asada,Suzuki Toshitake,Yasuhiko Higashiyama,Akiharu Abe,Naoki Moriguchi +5 more
TL;DR: In this article, a speed changing gear device for an automatic transmission, comprising a main gear assembly for providing a plurality of operating positions, and an auxiliary gear assembly, is presented.