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Method for suppressing brake noise of vehicle

A vehicle braking and noise suppression technology, applied in vehicle components, circuits or fluid pipelines, transportation and packaging, etc., can solve the problems of difficult modeling and simulation, unsatisfactory effects, and incomplete theoretical basis. , to achieve the effect of long-term monitoring and suppression of braking noise

Inactive Publication Date: 2015-10-21
陈凡 +1
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Problems solved by technology

[0003] The difficulty of brake noise research recognized at home and abroad lies in: the occurrence of brake noise has obvious random and intermittent characteristics, there are many influencing factors on noise occurrence, and various parameters have distribution characteristics, making modeling and simulation difficult
At present, the mechanism of braking noise still needs to be researched and broken through. Its theoretical basis is not completely clear, and it is still impossible to completely eliminate the noise that may be generated during braking from the structure and material of parts.
The existing methods for noise suppression, whether active control or passive control, are limited in the design of the brake, and the effect is not satisfactory

Method used

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  • Method for suppressing brake noise of vehicle
  • Method for suppressing brake noise of vehicle

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Embodiment Construction

[0014] like figure 1 As shown, it is an implementation method of car brake noise suppression. The figure includes right front wheel 100, left front wheel 105, right rear wheel 108, left rear wheel 113, right front acceleration sensor 102, left front acceleration sensor 103, right rear acceleration sensor 110, left rear acceleration sensor 111, right front brake 101, left front brake 104 , right rear brake 109, left rear brake 112, electronic control unit 107, brake pressure regulator 106. Each wheel is equipped with a disc brake, and each disc brake is equipped with an acceleration sensor. The acceleration sensor is fixed on the brake caliper body to sense the vibration of the caliper body. The four acceleration sensors ( 102 , 103 , 110 , 111 ) send electrical signals to the electronic control unit 107 . The electronic control unit 107 detects and compares the values ​​of the four acceleration sensors (102, 103, 110, 111). When braking, if it detects that the value of the a...

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Abstract

The invention brings forward a method for suppressing brake noise of a vehicle. Acceleration or sound pressure sensors are arranged nearby brakes to monitor the vibration or noise of the brakes. When a phenomenon that noise occurrence or noise trend occurrence of a brake at a certain wheel is monitored during braking, the brake pressure of the brake of the wheel is adjusted and the brake pressures of brakes at other wheels are adjusted correspondingly. The method has the following advantages: the brake noises can be monitored and suppressed for long time without the need of brake part maintenance or replacement.

Description

technical field [0001] The invention proposes a noise suppression method, especially a noise suppression method related to vehicle braking. Background technique [0002] Brakes are one of the key components of various vehicles. The noise problem generated when the vehicle brakes seriously affects the driving safety, comfort and environmental protection of the vehicle. The noise during vehicle braking is high in frequency and intensity, and it often occurs in the brakes of motorcycles, automobiles, rail vehicles and aircraft, resulting in huge economic losses. Taking cars as an example, brake noise ranks in the top three of customer complaints all year round. After the brake noise occurs in the vehicle, the noise can be temporarily eliminated by replacing parts or changing local structural materials. This post-processing method is costly and poor in customer satisfaction. Therefore, brake noise control has always been the focus of brake research and development. [0003] ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60R16/037
CPCB60R16/037
Inventor 陈凡
Owner 陈凡
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