公开(公告)号：US20180223709A1

公开(公告)日：2018-08-09

申请号：US15425433

申请日：2017-02-06

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Glenn Pietila ,  Amin Abdossalami ,  Lei Li ,  Roger C. Barlow, JR. ,  Jacob A. Holbrook

IPC: F01N1/16

CPC classification number: F01N1/165 ,  F01N1/168 ,  F01N2240/36

Abstract: A system for controlling exhaust noise in a vehicle includes a variable exhaust valve for an exhaust system, and an exhaust valve controller operatively connectable to the variable exhaust valve. The exhaust valve controller is configured to retrieve two or more control conditions, and determine an operational intent based on the two or more control conditions. The exhaust valve controller is configured to generate a control signal based on the operational intent and the two or more control conditions, and transmit the control signal to the variable exhaust valve. The control signal changes an exhaust valve position of the variable exhaust valve. The exhaust valve position is configured to create an exhaust noise response associated with the operational intent.

公开(公告)号：US20170107876A1

公开(公告)日：2017-04-20

申请号：US14886406

申请日：2015-10-19

Applicant: GM Global Technology Operations LLC

Inventor： Jacob A. HOLBROOK ,  Roger C. Barlow, JR. ,  Frank C. Valeri

IPC: F01N1/16

CPC classification number: F01N1/168 ,  F01N1/16 ,  F01N1/18 ,  F01N9/00 ,  F01N2240/36 ,  F01N2390/02 ,  F01N2900/08 ,  F01N2900/10 ,  G01H3/00 ,  Y02T10/47

Abstract: 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.

公开(公告)号：US20180001818A1

公开(公告)日：2018-01-04

申请号：US15245334

申请日：2016-08-24

Applicant: GM Global Technology Operations LLC

Inventor： Scott M. Reilly ,  Frank C. Valeri ,  Roger C. Barlow, JR.

IPC: B60Q9/00 ,  B60Q5/00 ,  H04R3/04

CPC classification number: B60Q9/00 ,  B60Q5/005 ,  H04R3/00 ,  H04R3/04 ,  H04R2430/01 ,  H04R2499/13

Abstract: An audio system of a vehicle includes: an acceleration state module that sets an acceleration state signal to a first state when a longitudinal acceleration of the vehicle is greater than a first predetermined acceleration, where the first predetermined acceleration is positive; a sound control module that selectively sets audio characteristics for an acceleration event in response to determinations that all of: (i) the acceleration state signal is in the first state; (ii) an electric motor is outputting positive torque to a powertrain of the vehicle; and (iii) a driver is applying pressure to an accelerator pedal; and an audio driver module that, based on the audio characteristics, applies power to speakers to output sound within a passenger cabin of the vehicle.

公开(公告)号：US20170337915A1

公开(公告)日：2017-11-23

申请号：US15161991

申请日：2016-05-23

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Frank C. Valeri ,  Scott M. Reilly ,  Roger C. Barlow, JR. ,  William Seldon

IPC: G10K11/175

CPC classification number: G10K11/175 ,  G10K11/178 ,  G10K15/04 ,  G10K2210/1282

Abstract: A system for controlling sound character of a vehicle includes one or more performance enhancement systems operable to enhance powertrain performance. Each of the one or more performance enhancement systems includes a performance control input. One or more sound enhancement systems are operable to adjust at least one of an external vehicle sound and an interior sound perceived by vehicle occupants. Each of the one or more sound enhancement system includes a sound enhancement control input. A sound character control system includes a central controller operably connected to at least one performance control input and at least one sound enhancement control input. The central controller coordinates operation of at least two of the one or more performance enhancement systems and the one or more sound enhancement systems to establish one of a desired exterior sound character and an interior sound character.

公开(公告)号：US20170298793A1

公开(公告)日：2017-10-19

申请号：US15402880

申请日：2017-01-10

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Charles D. Rusher ,  Roger C. Barlow, JR. ,  Scott M. Reilly

IPC: F01N1/16

CPC classification number: F01N1/165 ,  F01N1/006 ,  F01N1/026 ,  F01N1/163 ,  F01N1/166 ,  F01N1/168

Abstract: 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.