Nissan Motor Company Limited

Kenichi Tsubaki

Takamitsu Hase

Manabu Okamura

Ryuji Watanabe

Ken Yamada

Masafumi Okishima

Shingo Yamanaka

Mitsuru Yoichi

Qingyang Wu

Provided is a control method for a vehicle including an internal combustion engine as a driving source, the control method for the vehicle including: executing automatic stop control of automatically stopping the internal combustion engine when a predetermined stop condition is satisfied, and executing automatic restart control of automatically restarting the internal combustion engine when a predetermined restart condition is satisfied during execution of the automatic stop control; performing brake holding control of applying a braking force to wheels to maintain a vehicle stop state during the execution of the automatic stop control; and automatically restarting the internal combustion engine when the restart condition is satisfied, and releasing the brake holding control when a predetermined period elapses since the restart condition is satisfied. Particularly, in this control method, the predetermined period is varied according to an engine revolution speed at a time when the restart condition is satisfied.

Control method for vehicle and vehicle

Provided is a vehicle control method in which a controller executes sailing stop control in which, if the conditions for stopping a drive source are satisfied during travel, the drive source is stopped and a coupling element provided in a power transmission path between the drive source and a continuously variable transmission is released for coasting. If the conditions for stopping the drive source are not satisfied, the controller restarts the drive source and estimates the driver's intention to accelerate, and if the driver has an intention to accelerate, the gear ratio of the continuously variable transmission is increased to a higher value than when there is no intention to accelerate, and the coupling element is coupled.

Vehicle control method and vehicle control device

A control method for an engine includes determining whether a predetermined fuel supply stop condition has been fulfilled, executing stop time vibration suppression control of, after stop of fuel supply in response to fulfillment of the predetermined fuel supply stop condition, temporarily performing fuel supply to the engine to suppress vehicle vibration, and stopping fuel supply to all cylinders after the execution of the stop time vibration suppression control. The stop time vibration suppression control includes determining whether a first predetermined number of cylinders have undergone a combustion stroke after the stop of the fuel supply, the first predetermined number being according to a engine revolution speed or a reduction ratio from the engine to drive wheels, and in a case where the first predetermined number of cylinders have undergone the combustion stroke, performing fuel supply to a second predetermined number of cylinders.

Control method and control device for engine

During a fuel cut-off control, if a vehicle deceleration rate becomes greater than a rapid deceleration determination value, which is calculated based on a rotational resistance of internal combustion engine, a vehicle is determined to be in a state of rapid deceleration. The rapid deceleration determination value is set to decrease as the rotational resistance of internal combustion engineincreases. The rotational resistance thereof increases as the vehicle speed decreases, and increases as a transmission gear ratio increases. Thereby, during decelerating on a high vehicle speed side, an erroneous determination of rapid deceleration due to a longitudinal vibration of the vehicle that occurs when the fuel cut-off control starts can be prevented, and during decelerating on a low vehicle speed side, a determination of rapid deceleration can be implemented to terminate the fuel cut-off control and thereby prevent the internal combustion enginefrom being stopped.

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Kanagawa, Japan

Kenichi Tsubaki