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Noise detecting method and system of air conditioner for car and car

A detection method and detection system technology, which are applied to instruments, measuring devices, measuring ultrasonic/sonic/infrasonic waves, etc., can solve problems such as error-prone judgments, users' inability to timely and accurately understand faults, and vehicle complaints, so as to improve maintenance efficiency. , Reduce troubleshooting time and improve user experience

Active Publication Date: 2015-03-25
MIND ELECTRONICS APPLIANCE CO LTD
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Problems solved by technology

[0003] The maintenance personnel judge the noise source based on experience, which is easy to make mistakes, and usually requires the user to drive the vehicle to the maintenance site, which is very inconvenient. The user cannot understand the fault in a timely and accurate manner, and the user complains about the vehicle

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  • Noise detecting method and system of air conditioner for car and car
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  • Noise detecting method and system of air conditioner for car and car

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Embodiment Construction

[0048] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0049] The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0050] figure 1 It is a flow chart of a noise detection method for a vehicle air conditioner according to an embodiment of the present invention. like figure 1 As shown, the noise detection method of a vehicle air conditioner according to an embodiment of the present invention includes the following steps:

[0051] Step S101: Use the probe to collect the sound pressure levels of n sound sources in the vehicle air conditioner, where n is a positive integer.

[0052] like figure 2 and Figure 8 As shown, the sound pressure levels of n sound sources can be collected by the sound collection and detection device 710 arranged near the n sound sources in the air conditioner (the sound colle...

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Abstract

The invention provides a noise detecting method and system of an air conditioner for a car and the car. The method comprises the steps that a probe is used for collecting the sound pressure levels of n sound sources in the air conditioner for the car, and n is a positive integer; according to the sound pressure levels of the n sound sources, the sound pressure level of a header sound source is obtained; whether the sound pressure level of the header sound source exceeds preset decibels is judged, if no, the probe is used for carrying out collecting continuously, and otherwise, a noise source is determined preliminarily by decomposing header sound pressure through the position of the probe; the probe uses ultrasonic waves to detect the noise source, and the three-dimension appearance of the noise source is obtained; and compared with the three-dimension appearance, so that fault products are determined, and fault product codes are output. According to the noise detecting method of the air conditioner for the car, the fault source of the air conditioner can be found timely and accurately, a user can know faults conveniently, and user experience is improved.

Description

technical field [0001] The invention relates to the technical field of automobiles, in particular to a noise detection method, system and vehicle of a vehicle air conditioner. Background technique [0002] With the development of the times, people have higher and higher requirements for vehicle air conditioners. Good cooling, ventilation and heat exchange functions can no longer meet the requirements of users, and the noise generated during its operation has also attracted more and more attention from users. This kind of noise comes from the mechanical vibration sound and air flow sound produced by the air conditioner when it is in operation. The noise detection quantity is the sound pressure level, and the unit is dB (decibel). Once the noise is too loud, the user hopes to find the cause immediately, clear the fault, and eliminate the loud noise. But at present, the judgment of the noise source in the automobile air conditioner is mainly based on the experience of the main...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01H17/00
Inventor 王磊邢海洋贾士超胡皓知
Owner MIND ELECTRONICS APPLIANCE CO LTD
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