Mazda Motor Corporation

Yuto Sakasegawa

Hiroyuki Morioka

Keiichi Hiwatashi

Atsushi Yamasaki

Masahiro Nagoshi

Akira Tsuda

Yuki Ishiyama

Kenichi Ogasawara

Takefumi Takada

Kazuki Kawamoto

Yuichiro Yamane

Jumpei Takeda

Shin Kato

To provide a control device for a vehicle capable of controlling the torque of a drive source so as to appropriately balance the suppression of body vibrations and the securing of a transient response during acceleration or deceleration. This control device for a vehicle includes an accelerator position sensor that detects the accelerator opening, a torque adjustment mechanism such as a throttle valve that adjusts the torque of an engine as the drive source of the vehicle, and a powertrain control module (PCM) that controls the torque adjustment mechanism based on the accelerator opening. The PCM sets the target acceleration of the vehicle based on the accelerator opening, sets the target torsion angle of the drive shaft based on the target acceleration, sets the target torque of the engine based on the target torsion, and controls the torque adjustment mechanism based on the target torque.

Control device and control method for vehicle

An engine control system comprises: an enginecapable of switching between a reduced-cylinder operation mode in which combustion is stopped in a part of a plurality of cylindersand an all-cylinder operation mode in which combustion is performed in all the plurality of cylinders; and a PCMconfigured to stop fuel supply to the cylinderswhen a given fuel cut-off condition is satisfied. The PCMis operable, during a transition from a state in which the engineis operated in the reduced-cylinder operation mode to a state in which the fuel cut-off condition is satisfied, to stop the fuel supply to the cylindersat a timing earlier than that during a transition from a state in which the engineis operated in the all-cylinder operation mode to the state in which the fuel cut-off condition is satisfied.

Engine control system

Growing community of inventors

Aki-gun, Japan

Yuto Sakasegawa