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Vehicle engine sound enhancement

An engine, engine load technology, applied in the direction of sound-producing equipment, vehicle components, active noise control, etc.

Active Publication Date: 2013-11-13
BOSE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Determining the engine harmonic enhancement gains may include determining the engine harmonic gains individually for each harmonic

Method used

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  • Vehicle engine sound enhancement
  • Vehicle engine sound enhancement
  • Vehicle engine sound enhancement

Examples

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Embodiment Construction

[0014] Although elements of the several views of the figures may be shown and described in block diagrams as discrete elements and may be referred to as "circuits," unless otherwise indicated, the elements may be implemented as analog circuits, digital circuits, or software-instruction-executing One or more microprocessors or a combination of them. Software instructions may include digital signal processing (DSP) instructions. Operations may be performed by analog circuitry or by a microprocessor executing software that performs the mathematical or logical equivalents of analog operations. Unless otherwise indicated, the signal lines may be implemented as discrete analog or digital signal lines, as a single discrete digital signal line with appropriate signal processing to handle individual audio signal streams, or as elements of a wireless communication system. Some processes can be described in block diagrams. The activities performed in each block may be performed by one ...

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Abstract

An engine harmonic enhancement system. The EHE system uses multiple parameters, such as engine load, gear, number of cylinders operating, and transmission ratio, to determine EHE gains to determine EHE gain. The EHE system determines a separate EHE gain for each harmonic.

Description

Background technique [0001] The specification describes a vehicle engine sound enhancement system. Engine sound enhancement systems provide enhanced sound to modify the acoustic and / or vibrational experience of a vehicle driver or vehicle occupant. In a hybrid vehicle, regardless of the change from internal combustion power to electric motor power, the sound enhancement system can provide a driver with a constant pitch and smooth the transition of engine sound during the change. Engine sound enhancement systems may allow occupants to experience engine sounds at loud, exciting levels without being annoyingly loud to those outside the vehicle. [0002] For more background, refer to US patent application Ser. No. 12 / 716,887. Contents of the invention [0003] In one aspect of the description, a method includes providing a fundamental frequency corresponding to an RPM of a vehicle engine, determining a plurality of harmonics of the fundamental frequency, and determining an eng...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10K15/02
CPCG10K15/02A63H17/34B60Q5/00G10H2250/371G10K2210/1282G10K2210/3016G10K2210/3031G10K2210/3046H04R1/028H04R1/22H04R2430/01H04R2499/13
Inventor C·M·赫拉D·D·克卢格
Owner BOSE CORP