Nissan Motor Company Limited

Wataru Ogose

Yoshiharu Nakaji

Shunichi Kanehara

Koji Shionome

Daisuke Ochi

Toshio Enomoto

A noise control device includes an engine to be mounted in a vehicle and a controller. The controller is configured to detect a state of the engine. The controller is configured to decrease a noise reduction performance due to a vibration input from a road surface in accordance with the state of the engine.

Noise control method and noise control device

An acceleration sound generation device for a vehicle using at least one of an acceleration operation of the vehicle, an acceleration force generated by the acceleration operation, and an acceleration state obtained by the acceleration force as a control parameter. The acceleration sound generation device includes a sound generation unit and an acceleration sound delay unit. The sound generation unit generates an acceleration sound in a vehicle passenger compartment in response to an acceleration sound signal that is generated based on the control parameter. The acceleration sound delay unit delays output of the acceleration sound by the sound generation unit such that the acceleration sound changes and is delayed with respect to a change in the control parameter. The acceleration sound delay unit sets a delay degree of the acceleration sound at a rising time of the control parameter separately from at a falling time of the control parameter.

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Fujisawa, Japan

Wataru Ogose