Mazda Motor Corporation

Keiji Bouda

Shinya Kamada

Norio Iwashita

Kazuhiro Tanaka

Narihito Hongawara

Tomokazu Kinoshita

Kyosei Nakashima

Hiroyuki Okayama

Hiroo Akagi

A power transmission apparatus with a centrifugal pendulum damper is realized, which can effectively suppress torque fluctuation and vibration noise of a vehicle while avoiding size increase of a centrifugal pendulum damper and deterioration of reliability of the centrifugal pendulum damper by high-speed rotation. A power transmission apparatus with a centrifugal pendulum damper includes: a centrifugal pendulum damper coupled to an input shaft through a speed-increasing mechanism configured to increase speed of rotation of the input shaft; and an engagement/disengagement mechanism capable of realizing and cutting off power transmission from the input shaft to the centrifugal pendulum damper.

Power transmission apparatus with centrifugal pendulum damper

A control system for automatic transmissions having a multiple stage transmission gear mechanism in which shift control is accomplished based on an automatic shift control mode or a holding mode wherein a higher gear stage is selected under the holding mode and when a predetermined driving condition is detected, a shift down control is carried out so as to obtain a desirable feeling in a reacceleration operation.

Automatic transmission system for a vehicle

Growing community of inventors

Hiroshima, Japan

Keiji Bouda