Mazda Motor Corporation

Kenji Tanaka

Chikako Ohisa

Daisuke Shimo

Atsushi Yamasaki

Takeatsu Ito

Tomohiro Koguchi

Yoshie Kakuda

Kenta Honda

Shinichi Hikitani

Daisuke Fukuda

Akira Tsuda

Masahiro Miyazaki

Hiroaki Gotan

Keitaro Kageyama

Kenta Kobayashi

Kyohei Ike

Toshiyuki Yamaguchi

Michiyuki Miura

Yukio Jo

Kazufumi Kumakura

Yoshimitsu Fukuda

Takahiro Okazaki

Toshiaki Tohoda

Aki Murai

Masaki Yamamoto

Yusaku Takahashi

A cooling device of a vehicle is provided, which includes a transmission, a first coolant circuit where a first coolant which cools the internal combustion engine circulates, a second coolant circuit independent from the first coolant circuit, where a second coolant which cools the electric drive system circulates, and a fluid circuit where fluid which lubricates and cools friction engagement elements in the transmission circulates. The fluid circuit includes a first heat exchanger which exchanges heat between the fluid and the first coolant, a second heat exchanger in-series with the first heat exchanger which exchanges heat between the fluid and the second coolant, a first adjuster which changes a flow rate of the fluid passing through the first heat exchanger, and a second adjuster which changes a flow rate of the fluid passing through the second heat exchanger.

Vehicle cooling device

An engine control device to be mounted on a vehicle is provided. The control device includes a transmission state determining module for determining a connection between a stepped transmission and an engine, determining that a gear shift has started if the connection is disengaged from a connected state, and determining that the gear shift has finished if the connection is resumed, a gear position estimating module for estimating a gear position when the gear shift is determined to have started, a target engine speed specifying module for specifying a target engine speed based on the estimated gear position, and a speed control module for controlling an engine speed to the target engine speed when the gear shift is determined to have started.

Control device of engine

Growing community of inventors

Hiroshima, Japan

Kenji Tanaka