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    • 1. 发明授权
    • Cylinder responsive vibratory noise control apparatus
    • 气缸响应振动噪声控制装置
    • US07620188B2
    • 2009-11-17
    • US10866986
    • 2004-06-15
    • Toshio InoueSatoru MinowaAkira TakahashiYoshio NakamuraMasahide Onishi
    • Toshio InoueSatoru MinowaAkira TakahashiYoshio NakamuraMasahide Onishi
    • G10K11/16
    • G10K11/178
    • An active vibratory noise control apparatus reduces vibratory noise which is produced in the passenger compartment of a vehicle based on vibratory noise generated by a variable-cylinder internal combustion engine that can selectively be operated in a full-cylinder operation mode in which all of the cylinders are operated and a partial-cylinder operation mode in which some of the cylinders are out of operation. The active vibratory noise control apparatus has a partial-cylinder operation mode determining circuit for determining whether the variable-cylinder internal combustion engine is in the partial-cylinder operation mode or not. Depending on a determined result from the partial-cylinder operation mode determining circuit, a transistor is turned on or off to switch an amplifying circuit which drives a speaker into and out of operation.
    • 主动振动噪声控制装置减少了基于由可变气缸内燃机产生的振动噪声而产生的振动噪声,该可变气缸内燃机可选择性地以全气缸操作模式操作,其中所有汽缸 并且其中一些气缸不工作的部分气缸操作模式。 主动振动噪声控制装置具有用于判定可变气缸内燃机是否处于部分气缸操作模式的部分气缸操作模式确定电路。 根据来自部分气缸操作模式确定电路的确定结果,晶体管导通或截止以切换驱动扬声器的放大电路进入和断开。