Invention Grant
- Patent Title: Engine order and road noise control
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Application No.: US15768722Application Date: 2016-10-10
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Publication No.: US10930260B2Publication Date: 2021-02-23
- Inventor: Markus Christoph
- Applicant: Harman Becker Automotive Systems GmbH
- Applicant Address: DE Karlsbad
- Assignee: Harman Becker Automotive Systems GmbH
- Current Assignee: Harman Becker Automotive Systems GmbH
- Current Assignee Address: DE Karlsbad
- Agency: Brooks Kushman P.C.
- Priority: EP15190175 20151016
- International Application: PCT/IB2016/056047 WO 20161010
- International Announcement: WO2017/064604 WO 20170420
- Main IPC: G10K11/178
- IPC: G10K11/178

Abstract:
Exemplary engine order and road noise control systems and methods include directly picking up road noise from a structural element of a vehicle to generate a first sense signal representative of the road noise, detecting harmonics of an engine of the vehicle to generate a second sense signal representative of the engine harmonics, and combining the first sense signal and the second sense signal to provide a combination signal representing the combination of the first sense signal and the second sense signal. The systems and methods further include broadband active noise control filtering to generate a filtered combination signal, and converting the filtered combination signal from the active noise control filtering into anti-noise and radiating the anti-noise to a listening position in an interior of the vehicle. The filtered combination signal is configured so that the anti-noise reduces the road noise and engine sound at the listening position.
Public/Granted literature
- US20190066650A1 ENGINE ORDER AND ROAD NOISE CONTROL Public/Granted day:2019-02-28
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