A rear axle brake noise elimination system and method

Abstract

The invention provides a rear axle braking noise cancellation system and method. In the rear axle braking noise cancellation system comprises, pressurization pipelines and depressurization pipelines are arranged between a vehicle main cylinder and every two diagonally-arranged wheel cylinders of a front axle and a rear axle of the vehicle; the corresponding pressurization pipeline and the corresponding depressurization pipeline between the vehicle main cylinder and each wheel cylinder form a braking hydraulic pipeline circuit; each braking hydraulic pipeline circuit is provided with an electronically-controlled normally-open valve; a main cylinder braking pressure sensor is integrated in an ESP controller of the vehicle and signals of a wheel speed sensor are acquired; and the ESP controller is connected to a rear axle noise cancellation button. The rear axle braking noise cancellation system utilizes the existing ESP controller and the wheel speed sensor and adds the noise cancellation button, so that a user can select or cancel the function purely by controlling ESP software, and the cost is almost not increased. In addition, the noise cancellation effect is obvious, and the sensory experience of occupants is greatly improved.

Description

technical field [0001] The invention relates to the field of automobile driving noise elimination, in particular to a rear axle braking noise elimination system and method. Background technique [0002] The development of the automobile industry has made automobiles enter thousands of households, and the improvement of people's living standards has put forward higher requirements for the driving comfort of passenger vehicles. The NVH (Noise, Vibration, Harshness) performance of the vehicle has become the focus of special attention in the vehicle development process. Originally, the noise generated by the operation of gasoline or diesel engines will cover up part of the braking noise. With the rapid development of electric vehicles, the overall noise of electric vehicles has been significantly reduced, and the noise of automobile braking is more prominent. Various braking noises are produced. Noise pollution seriously affects the riding comfort of the occupants and damages p...

AI Technical Summary

Problems solved by technology

[0004] Previous solutions often focus on the material and structure of the friction disc and the structural optimization of the brake, but with little success

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