Toyota Jidosha Kabushiki Kaisha

Aisin Seiki Kabushiki Kaisha

Masanobu Kimura

Yuji Iwase

Hiroyuki Nishizawa

Masataka Osawa

Masami Sugaya

Ryoichi Hibino

Naoki Moriguchi

Naoto Tanaka

Kisaburo Hayakawa

Shinobu Nakamura

Masahiro Tomida

Shuzo Sanda

Tomohiro Miyabe

A hydraulic supply device of an automatic transmission, which supplies operating oil to the automatic transmission that is able to shift power from an engine and transmit the power to drive wheels of a vehicle by selectively engaging a plurality of frictional engagement devices using hydraulic pressure is disclosed. The hydraulic supply device includes: an accumulator that accumulates operating oil; a leaking flow compensation hydraulic pump that supplies the operating oil for compensating for a flow rate of the operating oil leaking in the automatic transmission to the automatic transmission by being driven by a power source different from the engine when the engine is automatically stopped; and a hydraulic supply control mechanism configured to supply the operating oil accumulated in the accumulator to a starting frictional engagement device that is one of the plurality of frictional engagement devices to be engaged at the time of starting the vehicle when the engine is restarted after the engine is automatically stopped.

Hydraulic pressure supply device of automatic transmission

A controller determines a target gear ratio from an accelerator opening and a vehicle speed. The controller determines the stroke of a trunnion on the basis of the difference between present inclination and a target inclination, thereby to control stroke by a hydraulic control valve. The stroke is corrected according to input/output disc pushing force.

Speed change control apparatus for toroidal CVT

Growing community of inventors

Ama-gun, Japan

Masanobu Kimura