Mitsubishi Jidosha Kogyo Kabushiki Kaisha

Jatco Corporation

Ken Hirashita

Noritaka Aoyama

Masataka Ohtsuka

Kenji Ohmura

Nagamitsu Hiraoka

Teppei Tanizoe

Takahisa Fujiwara

Nobuhiko Morifuji

Mitsuki Ishizuka

Yukinobu Sakakibara

Azusa Shimoda

Hiromasa Masuda

A transmission control device controls a CVT installed in a vehicle. The device has, as modes for the CVT, a CVT mode Mfor changing a transmission gear ratio steplessly based on the operating state of the vehicle, and a stepped transmission mode Mfor changing the transmission gear ratio stepwise based on the operating state of the vehicle. The device includes a transmission mode switching control unit (controller)for controlling switching between the CVT mode Mand the stepped transmission mode Mbased on an actual accelerator opening. The transmission mode switching control unit (controller)performs switching from the CVT mode Mto the stepped transmission mode M, if the actual accelerator opening reaches or exceeds a first threshold value Tset in a plurality of stages so as to increase stepwise in accordance with an increase in a vehicle speed.

Transmission control device

The control apparatus for a vehicle includes a determination unit that determines whether or not a start condition is established, the start condition including when a torque converter is in a lockup state, and when the vehicle is in an accelerating state; and a display control unit that causes an acting number of rotations to be displayed on a tachometer instead of an actual number of rotations when it is determined by the determination unit that the start condition is established. The display control unit calculates the acting number of rotations based on a target value of an input number of rotations of a continuously variable transmission, and varies the acting number of rotations with a rate of change having an absolute value that is greater than an absolute value of a rate of change of the actual number of rotations upon an abrupt change in the target value.

Control apparatus for vehicle

A control apparatus for a vehicle includes a determination unit that determines whether or not a start condition is established, the start condition including a torque converter is in a non-lock-up state and the vehicle is starting; and a display control unit that causes a virtual number of rotations to be displayed on a tachometer instead of an actual number of rotations when it is determined by the determination unit that the start condition is established. The display control unit calculates an acting number of rotations by referring to the actual number of rotations and a number of rotations on a driving wheel side relative to the torque converter in an automatic transmission, and causes the acting number of rotations to be displayed on the tachometer as the virtual number of rotations.

Growing community of inventors

Tokyo, Japan

Ken Hirashita