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Equipment for detecting windshield wiper, method and automobile

A wiper and equipment technology, applied in the direction of instruments, measuring devices, vehicle maintenance, etc., can solve the problems of easily damaged sensors, affecting user experience, cumbersome installation, etc., and achieve the effects of easy installation, improved user experience, and low cost

Inactive Publication Date: 2018-12-21
HANGZHOU RONG DA INTELLIGENT MFG TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the existing technology, the sensor is mainly used to detect whether the wiper is faulty or aging. However, on the one hand, the sensor is easily damaged, which will lead to inaccurate detection. On the other hand, the cost of the sensor is high and the installation is cumbersome, which affects the user experience.

Method used

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  • Equipment for detecting windshield wiper, method and automobile
  • Equipment for detecting windshield wiper, method and automobile
  • Equipment for detecting windshield wiper, method and automobile

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0051] A device for detecting windshield wipers shown in an exemplary embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

[0052] see figure 1 , which is a structural diagram of a device for detecting wipers provided by an embodiment of the present invention.

[0053] The device for detecting wipers provided in this embodiment is applied to electric vehicles, and the electric vehicles include pure electric vehicles and hybrid vehicles.

[0054]Among them, a hybrid vehicle refers to a gasoline-electric hybrid vehicle, that is, a traditional internal combustion engine (diesel engine or gasoline engine) and an electric motor are used as power sources. When the power of the hybrid vehicle is insufficient, the engine can be used to provide a power source; when the fuel of the hybrid vehicle is insufficient, the electric motor can be used to provide power energy, and the two can complement each other to increase the cr...

Embodiment 2

[0091] The above-mentioned embodiments have introduced the composition and functions of the equipment for detecting wipers, and the realization of the specific functions of the above-mentioned equipment will be described in detail below in conjunction with the accompanying drawings.

[0092] see image 3 , which is a structural diagram of another device for detecting wipers provided by an embodiment of the present invention.

[0093] The device provided in this embodiment includes: a controller 101 , a microphone module 102 and a current detection circuit 105 .

[0094] The current detection circuit 105 is used to obtain the working current of the motor 104 .

[0095] The controller 101 is also used to obtain the service life corresponding to the working current of the motor from the working current-height function; the current-service life function is obtained through experiments in advance; the service life obtained by the frequency of the sound signal and the service life ...

Embodiment 3

[0111] This embodiment provides a method for detecting a windshield wiper, and the method provided by this embodiment will be described below with reference to the accompanying drawings.

[0112] see Figure 4 , which is a flow chart of a method for detecting windshield wipers provided by an embodiment of the present invention.

[0113] The method provided in this embodiment includes:

[0114] S401: The controller sends a motor start signal to the motor corresponding to the wiper.

[0115] S402: The motor drives the wiper to act according to the motor start signal.

[0116] S403: The microphone module obtains the sound signal of the wiper after the motor is turned on, and sends the sound signal to the controller.

[0117] S404: The controller performs spectrum analysis on the sound signal to obtain the frequency of the sound signal, and obtains the service life of the wiper corresponding to the frequency of the sound signal according to the frequency-service life function, ...

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PUM

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Abstract

The embodiment of the application discloses equipment for detecting a windshield wiper, a method and an automobile. The detection equipment comprises a microphone module and a controller; the controller is used for sending a motor start signal to a motor corresponding to the windshield wiper; the motor drives the windshield wiper to move; the microphone module acquires a sound signal of the windshield wiper after the motor is started, and sends the sound signal to the controller; the controller performs spectrum analysis on the sound signal to acquire the frequency of the sound signal, and acquires the service life of the windshield wiper corresponding to the frequency of the current sound signal according to a frequency-service life function; the operation of acquiring the service life ofthe windshield wiper is accurately detected by using the sound signal, and then a driver can timely acquire the time duration that the windshield wiper can be used; and the microphone module is low in cost and easy to mount, the use experience is improved.

Description

technical field [0001] The invention relates to the technical field of wiper detection, in particular to a device and method for detecting a wiper and an automobile. Background technique [0002] The wiper, also known as the wiper, is an important accessory installed on the windshield. Its function is to wipe off the raindrops and dust attached to the windshield of the vehicle to improve the visibility of the driver and increase driving safety. [0003] Although the wiper is a relatively small part in the sum of cars, according to the international driving safety survey: driving in rainy days, the traffic accident rate caused by the aging of the wiper is about 5 times higher than usual. Therefore, it is necessary to detect the wiper to avoid affecting driving safety due to the aging of the wiper. [0004] In the prior art, the sensor is mainly used to detect whether the wiper is faulty or aging. However, on the one hand, the sensor is easily damaged, which will lead to inac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M17/007B60S1/08
CPCB60S1/08G01M17/007
Inventor 陈雷王祖光
Owner HANGZHOU RONG DA INTELLIGENT MFG TECH CO LTD