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公开(公告)号：US11835008B1
公开(公告)日：2023-12-05
申请号：US18153723
申请日：2023-01-12
CPC分类号： F02D41/28 , F01N1/168 , G06F3/017 , G06V40/28 , F02D2041/281 , F02D2200/101
摘要： A vehicle system includes an engine, a transmission, an exhaust system, an adjustable valve, a sensor, and a controller. The engine is configured to propel a vehicle. The transmission is configured to transfer power from the engine to at least one drive wheel. The exhaust system is configured to route exhaust away from the engine. The exhaust system has a catalyst and an outlet. The adjustable valve is disposed within the exhaust system proximate to the outlet. The sensor is configured to observe human gestures. The controller is programmed to receive signals from the sensor indicative of the human gestures while the transmission is in a parked gear. The controller is further programmed to, in response to the sensor observing a first human gesture, increase an operating speed of the engine or adjust the valve to increase a noise output from the outlet of the exhaust system.
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公开(公告)号：US20180211646A1
公开(公告)日：2018-07-26
申请号：US15460916
申请日：2017-03-16
申请人： Wipro Limited
CPC分类号： G10K11/04 , F01N1/00 , F01N1/168 , F01N1/18 , F01N13/02 , F01N2900/12 , F02D2200/025 , F02D2200/701 , G01H17/00 , G01J1/16
摘要： The present disclosure discloses a system for attenuating sound produced by a vehicle. The system comprises a navigation device associated with the vehicle for determining location details of the vehicle, a sound reduction unit provisioned in an exhaust assembly of the vehicle. The system further includes an Electronic Control Unit (ECU) of the vehicle communicatively coupled to the navigation device and the sound reduction unit. The ECU is configured to detect sound reduction location, by comparing the location details with a pre-defined location data and operate the sound reduction unit to attenuate sound produced by the vehicle when the sound reduction location is detected. The system of the present disclosure, attenuates sound intensity of the vehicle to a desired level by considering surrounding conditions of the vehicle, thus the vehicle noise may be automatically attenuated in the sound sensitive areas or locations.
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公开(公告)号：US20170362976A1
公开(公告)日：2017-12-21
申请号：US15185415
申请日：2016-06-17
CPC分类号： F01N1/02 , F01N1/163 , F01N1/168 , F01N13/02 , F01N13/04 , F01N13/107 , F01N2240/36 , F01N2340/02 , F01N2470/20
摘要： An exhaust system for an engine has a volume element such as a muffler or a silencer. First and second exhaust pipes are connected as dual exhaust pipes upstream of or downstream of the volume element. The first exhaust pipe has a first length (L1). A valve is positioned in the second exhaust pipe at a distance (D) from the volume element. The distance D is a fraction of L1 such that the second pipe is a resonator for the first pipe with the valve in a closed position. A method of controlling exhaust noise includes positioning a valve in the first exhaust pipe at a distance (D) from a volume element with D being a specified fraction of a length of the second exhaust pipe, and closing the valve such that the first pipe provides a resonator for the second pipe to counteract standing wave in the second pipe.
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4.发明申请公开(公告)号：US20170350287A1
公开(公告)日：2017-12-07
申请号：US15610956
申请日：2017-06-01
申请人： Ferrari S.p.A.
发明人： Cristiano Pompucci
CPC分类号： F01N1/023 , F01N1/06 , F01N1/166 , F01N1/168 , F01N13/04 , F01N13/082 , F01N2260/16 , G10K11/22
摘要： A road vehicle comprising: a passenger compartment; an internal combustion engine; an exhaust system, which releases into the atmosphere the gases generated by the combustion, is connected to the internal combustion engine, and ends with at least one silencer having at least one outlet pipe; and an exhaust noise transmission device, which is provided with a transmission conduit, which originates close to the outlet pipe of the silencer, ends in the area of a wall of the passenger compartment, and is provided, on the inside, with at least one insulating element, which is arranged inside the transmission conduit so as to tightly seal the transmission conduit.
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公开(公告)号：US20170298793A1
公开(公告)日：2017-10-19
申请号：US15402880
申请日：2017-01-10
IPC分类号： F01N1/16
摘要： A selectively tunable exhaust noise attenuation device includes a body having an outer surface and an inner surface that defines an exhaust volume. An inlet is coupled to the body and fluidically connected to the exhaust volume. A first outlet is coupled to the body and fluidically connected to the inlet and selectively fluidically connected to the exhaust volume and a second outlet coupled to the body and fluidically connected to the exhaust volume. A first conduit including a primary exhaust gas flow path directly fluidically connects the inlet and the first outlet. A second conduit includes a first end and a second. The second conduit defines a secondary exhaust gas flow path. A valve is fluidically connected to one of the first and second conduits. The valve is arranged laterally off-set of the primary exhaust gas flow path.
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公开(公告)号：US20170276041A1
公开(公告)日：2017-09-28
申请号：US15355458
申请日：2016-11-18
发明人： Dae-Gil HWANG
CPC分类号： F01N1/165 , F01N1/083 , F01N1/163 , F01N1/168 , F01N13/04 , F01N13/082 , F01N2240/36 , G10K11/161
摘要： A muffler assembly including a central common active control valve may include a central body for guiding exhaust gas discharged from an engine to flow in bilateral directions in a branched manner, the central body comprising the active control valve disposed in a flow path of exhaust gas, and a pair of main mufflers, each separately disposed at opposite sides of the central body to exhaust exhaust gas introduced from the central body, in which the flow path and an exhaust path of the exhaust gas may be variable based on opening and closing of the active control valve.
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公开(公告)号：US09677438B2
公开(公告)日：2017-06-13
申请号：US14886406
申请日：2015-10-19
CPC分类号： F01N1/168 , F01N1/16 , F01N1/18 , F01N9/00 , F01N2240/36 , F01N2390/02 , F01N2900/08 , F01N2900/10 , G01H3/00 , Y02T10/47
摘要： A system in a vehicle including at least one sound quality valve arranged in an exhaust system of the vehicle includes a sound quality valve control module that determines whether one or more criteria for opening the sound quality valve are met, selectively actuates the sound quality valve to an open position if the one or more criteria for opening the sound quality valve are met, and maintains the sound quality valve in a closed position if a required one of the one or more criteria for opening the sound quality valve is not met. A downshift detection module determines whether aggressive driving behavior is detected. If the aggressive driving behavior is detected, the sound quality valve control module actuates the sound quality valve to the open position regardless of whether the required one of the one or more criteria for opening the sound quality valve is met.
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公开(公告)号：US09453452B2
公开(公告)日：2016-09-27
申请号：US14423911
申请日：2013-08-28
发明人： Seiji Kondo , Masahiro Kajikawa , Masayuki Sudoh
CPC分类号： F01N13/082 , F01N1/084 , F01N1/168 , F01N3/005 , F01N13/04 , F01N2240/22 , F01N2470/02 , F01N2490/02 , Y02T10/20
摘要： A muffler comprises an outer shell, an outlet pipe, and a restraining mechanism. A restraining mechanism restrains a height of spout of a liquid that flows inside the outlet pipe through a designated vent hole, the designated vent hole is at least one vent hole facing against a bottom surface of the outer shell among the at least one vent hole that the outlet pipe comprises.
摘要翻译： 消声器包括外壳，出口管和限制机构。 限制机构限制通过指定的排气孔在出口管内流动的液体的出口的高度，所述指定的通气孔是至少一个通气孔，所述通气孔面对所述至少一个通气孔中的外壳的底表面， 出口管包括。
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9.发明授权公开(公告)号：US08676534B2
公开(公告)日：2014-03-18
申请号：US13151709
申请日：2011-06-02
申请人： Gabriele Serra , Matteo De Cesare , Federico Stola
发明人： Gabriele Serra , Matteo De Cesare , Federico Stola
CPC分类号： F02D41/0007 , F01D17/06 , F01N1/168 , F02B29/0418 , F02B37/12 , F02B37/18 , F02B39/00 , F02B2037/122 , F02D23/02 , F02D2041/288 , F02D2200/025 , G01P3/48 , Y02T10/144 , Y02T10/146
摘要： A method for determining the rotation speed of at least one supercharger (14) in an internal combustion engine (1); the method includes detecting, through a microphone (25), the intensity of a sound signal generated by the rotation of the supercharger (14) and determining the evolution of the frequency content of the sound signal over time; determining, completely irrespective of the sound signal, a first estimation of the rotation speed of the supercharger (14) through which an interval of plausible frequencies for the rotation speed of the supercharger (14) may be determined; determining a second estimation of the rotation speed of the supercharger (14) according to the frequency content of the sound signal within the interval of plausible frequencies and validating the second estimation of the rotation speed of the supercharger (14) using the first estimation of the rotation speed of the supercharger (14).
摘要翻译： 一种用于确定内燃机（1）中的至少一个增压器（14）的转速的方法; 该方法包括通过麦克风（25）检测由增压器（14）的旋转产生的声音信号的强度，并确定随时间推移的声音信号的频率内容的演变; 确定完全不考虑声音信号的增压器（14）的转速的第一估计，通过该增压器的旋转速度可以确定增压器（14）的转速的合理频率的间隔; 根据在合理频率的间隔内的声音信号的频率含量来确定增压器（14）的转速的第二估计，并使用第一估计值来验证增压器（14）的转速的第二估计 增压器（14）的转速。
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公开(公告)号：US20130020147A1
公开(公告)日：2013-01-24
申请号：US13185298
申请日：2011-07-18
申请人： Peter J. Von Inten
发明人： Peter J. Von Inten
IPC分类号： F01N1/08
摘要： A tunable muffler for a vehicle may include a center frame having a first cavity, a detachable connected base plate being detachably connected to the center frame and a tunable baffle to tune the muffler. The center frame may include a second cavity, and the tunable baffle may be mounted substantially 90° to the plane of the base plate. The baffle may be mounted substantially parallel to the plane of the base plate, and the baffle may be controlled by a control device.
摘要翻译： 用于车辆的可调消声器可以包括具有第一空腔的中心框架，可拆卸地连接到中心框架的可拆卸连接的底板和可调谐挡板以调谐消音器。 中心框架可以包括第二空腔，并且可调节挡板可以基本上相对于基板的平面90°地安装。 挡板可以基本上平行于基板的平面安装，并且挡板可以由控制装置控制。
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