A control method and device for sporadic abnormal noise applied to vehicle acoustic devices

A technology of an acoustic device and a control method, which is applied in general control systems, program control, control/regulation systems, etc., and can solve problems such as complex automotive systems

Active Publication Date: 2022-02-15
SHANGHAI HEQIAN ELECTRONICS TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the automotive system is relatively complex. Since the central control host is connected to the body control system, instrument system, and smart antenna, more data needs to be communicated. Because different manufacturers have different communication implementation methods and communication processing logic, the existence of this abnormal sound belongs to A sporadic conditional trigger of the system content. In order to solve the abnormal sound caused by the sporadic conditional trigger caused by the communication processing logic, it is necessary to provide a solution to solve the current technical problem of sporadic abnormal sound.

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  • A control method and device for sporadic abnormal noise applied to vehicle acoustic devices
  • A control method and device for sporadic abnormal noise applied to vehicle acoustic devices
  • A control method and device for sporadic abnormal noise applied to vehicle acoustic devices

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[0040] In order to have a clearer understanding of the technical features, purposes and effects of this document, the specific implementation manners of the present invention will now be described with reference to the accompanying drawings, and the same symbols in each figure represent the same parts. In order to make the drawings concise, the schematic diagrams in the drawings show the relevant parts of the present invention, but do not represent the actual structure of the product. In addition, in order to make the drawings concise and easy to understand, in some drawings, only one of the components having the same structure or function is schematically shown, or only one of them is marked.

[0041] "Connection" in the present invention may include direct connection, indirect connection, communication connection, and electrical connection, unless otherwise specified.

[0042] The terminology used herein is for the purpose of describing particular embodiments only and is not...

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Abstract

The present invention provides a control method and device for sporadic abnormal noise applied to vehicle acoustic devices. After the vehicle is powered on through the ACC or the CAN wakes up the MCU, the MCU executes the power amplifier and the DSP is initialized, and after the mute is performed, the MCU releases the DSP. And the mute of the power amplifier, the monitoring process monitors the signal traffic received by the MCU in real time and performs traffic statistics within a preset time period, and compares the traffic statistics results with the preset threshold to determine whether to enforce the normal dog feeding process Dog feeding operation: the present invention can solve the technical problem of the abnormal sound caused by the abnormal reset of the watchdog because the dog feeding process cannot be executed in time, but the system is under normal operating conditions.

Description

technical field [0001] The invention relates to the field of automobile acoustics, in particular to a control method and device for sporadic abnormal noise applied to vehicle acoustic devices. Background technique [0002] With the increasing demand for comfort, informatization, and intelligent functions of automobiles, the requirements for in-vehicle infotainment are also getting higher and higher. Many high-end automobiles are equipped with luxury audio systems. In the multiple array speaker system test platforms, although the product has been tested hundreds to thousands of times before leaving the factory, the sound of the entire system is displayed normally, and there is no abnormal sound problem. The tested acoustics are assembled into the vehicle After hundreds of tests, it still shows normal. However, due to some sporadic and unpredictable factors, the vehicle will make abnormal noise. For example, after the vehicle is powered on through the ACC, after the person l...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B23/02
CPCG05B23/0213G05B2219/24065
Inventor 肖文平王磊
Owner SHANGHAI HEQIAN ELECTRONICS TECH CO LTD
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