Nissan Motor Company Limited

Jatco Corporation

Renault S.a.s.

Yuji Okamoto

Kunihiro Takahashi

Takuichiro Inoue

Tetsuya Izumi

Masayuki Miyazono

Toshiaki Noda

Makoto Komatsu

Takahiro Yamada

Syunsuke Iwamoto

Masashi Suwabe

Hiroyuki Suzuki

Seiichiro Takahashi

Fumito Shinohara

Koutarou Tagami

Shinya Akizuki

Tatsuya Imashioya

Hiroaki Nabuchi

Takashi Nobukawa

Hiroki Eida

Ryuki Maeta

A floor structure of an electric vehicle floor structure includes a battery unit and an underfloor panel. The battery unit is arranged underneath a floor of a passenger compartment between front wheels and rear wheels. The underfloor panel covers an entire bottom surface of the battery unit from below. The underfloor panel is provided with a center panel and a surrounding panel. The center panel has a noise absorption material that arranged at a lateral-direction center and a longitudinal-direction center of the underfloor panel. The surrounding panel has a high-strength material arranged around the center panel.

Electric vehicle floor structure

A lockup control device for a vehicle includes: a torque converter, and a lockup control configured to increase a lockup pressure difference command to an initial pressure difference, when a turbine rotation speed variation amount of the torque converter becomes smaller than a predetermined value during a ramp control in which the lockup pressure difference command is increased by a ramp pressure difference, the lockup control section being configured to switch to a second increase gradient having an increase gradient lower than a first increase gradient of the ramp pressure difference when the turbine rotation speed variation amount is equal to or greater than the predetermined value.

Lock-up control device for a vehicle

A lockup control device for a vehicle includes: a torque converter; a lockup control section configured to increase a lockup pressure difference command to an initial pressure difference when a lockup engagement condition is satisfied in a disengagement state of the lockup clutch, and then to increase the lockup pressure difference command by a ramp pressure difference by a predetermined gradient, the lockup control section being configured to determine a ramp start condition by which the lockup pressure difference command is switched from the initial pressure difference to the ramp pressure difference, based on a speed ratio which is a ratio of input and output rotation speeds of the torque converter.

Lock-up control device for vehicle

Disclosed is a control device for a continuously variable transmission () that has, as forward speed change stages, a first speed change stage () and a second speed change stage (). The control device comprises a coordinated speed change means () that carries out a coordinated speed changing in such a manner that when the speed change stage of an auxiliary transmission mechanism () is about to be changed, a speed change speed of the auxiliary transmission mechanism () is coordinated with a variator () and the variator () is controlled to carry out a speed change in a direction opposite to that of the auxiliary transmission mechanism () while carrying out the speed change operation of the auxiliary transmission mechanism (), and a torque control means () that carries out a torque regulating control during the coordinated speed changing under up-shifting by the coordinated speed change means, the torque regulating control being a control for effecting a torque-up operation to a driving source () after effecting a torque-down operation to the driving source and including a timing through which a starting time point of a drive force gap caused by the coordinated speed changing is advanced and a timing through which an ending time point of the drive force gap is delayed.

Control device for continuously variable transmission

A transmission controller increases hydraulic pressure supplied to a secondary pulley and decreases hydraulic pressure supplied to a primary pulley to shift a variator to a mechanical Low speed ratio when the hydraulic pressure supplied to the primary pulley and the secondary pulley vibrates. The transmission controller shifts the variator from the mechanical Low speed ratio to a High side when a sub-transmission mechanism is downshifted during controlling a speed ratio of the variator at the mechanical Low speed ratio.

Continuously variable transmission and method for controlling the same

A transmission controller increases hydraulic pressure supplied to a secondary pulley and decreases hydraulic pressure supplied to a primary pulley to shift a variator to a mechanical Low speed ratio during the hydraulic pressure supplied to the primary pulley and the secondary pulley vibrates. The mechanical Low speed ratio is a speed ratio where a groove width of the primary pulley has a maximum value possible to be employed in structure of the primary pulley.

Growing community of inventors

Atsugi, Japan

Yuji Okamoto