Vehicle interior active noise cancellation

一种车辆内部、车辆的技术，应用在主动噪音控制、车辆部件、电动汽车等方向，能够解决不期望等问题

Active Publication Date: 2010-10-20
GM GLOBAL TECH OPERATIONS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

While such synthetic sounds have significant advantages, the perception of synthetic sounds in a vehicle interior may be undesirable for some drivers and passengers, especially those relatively quiet drivers and passengers who place a high value on electric propulsion

Method used

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  • Vehicle interior active noise cancellation
  • Vehicle interior active noise cancellation
  • Vehicle interior active noise cancellation

Examples

Experimental program
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Embodiment Construction

[0047] Referring to the drawings, wherein like reference numerals correspond to like or similar parts throughout the several views, and denoted by figure 1 Initially, vehicle 10 includes a passenger cabin or interior 12 having one or more seats 13 each adapted to transport passengers 11 , interior 12 being defined by a body 14 . It is within the scope of the present invention that vehicle 10 may be configured as an extended-range electric vehicle (EV), a dual-mode or plug-in hybrid electric vehicle (HEV), a fuel cell powered vehicle, or with at least one purely electric operating state or electric propulsion mode (hereinafter referred to as "electric drive") any other vehicle design or configuration.

[0048] The vehicle 10 includes a powertrain 16 . As noted above, the powertrain 16 may be a hybrid-electric design or an all-electric design. Regardless of the specific configuration of powertrain 16 , powertrain 16 includes a high voltage battery or electricity storage system...

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PUM

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Abstract

The invention relates to vehicle interior active noise cancellation. A vehicle has an electric drive mode, a body defining a vehicle interior, a first and second set of audio speakers positioned outside and inside of the interior, respectively, and a controller. The controller generates an acoustic signal, broadcasts the acoustic signal via the first set of speakers during an electric drive mode,and generates and broadcasts a cancelling signal via the second set of speakers. The broadcasts are coordinated to substantially cancel an attenuated portion of the acoustic signal resulting from propagation of the acoustic signal into the interior. A method cancels a synthesized sound within a vehicle interior by collecting vehicle operating values, generating an acoustic signal as the synthesized sound during an electric drive mode, and processing the acoustic signal to generate a modified acoustic signal approximating an attenuated portion of the acoustic signal propagating into the vehicle interior.

Description

technical field [0001] The present invention relates generally to the control of noise or sound within a vehicle, and more particularly to the active cancellation of synthetic noise or sound in a vehicle interior during predetermined synthetic sound events. Background technique [0002] Electric vehicles (EV) and hybrid electric vehicles (HEV) rely largely on electric propulsion for optimal fuel economy, where, in combination with one or more on-board electric motor / generators and / or off-board electric power sources A working high voltage battery provides the required propulsion energy. For example, a typical full HEV can selectively use a high voltage battery module or an energy storage system (ESS) as a source of propulsion energy, automatically transitioning to propulsion via the internal combustion engine at higher speeds during conditions when the electric motor is relatively efficient. Similarly, an extended range EV equipped with a suitable high voltage ESS may opera...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60Q5/00G10K11/16
CPCG10K11/178G10K2210/1282B60L2270/142B60L2270/42G10K11/17823G10K11/17857G10K11/17873
Inventor M·A·西奥博尔德D·M·哈梅勒夫
Owner GM GLOBAL TECH OPERATIONS LLC
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