A control system and method for improving the abnormal noise of vehicle starting flutter based on driving force

A technology for starting and control systems of automobiles, applied in the direction of braking safety systems, etc., can solve problems such as stick-slip vibration at the brake friction pair, affect the vibration and noise performance of the braking system, and affect the comfort of vehicle vibration and noise, so as to reduce chatter Phenomenon, low cost, simple structure effect
CN104670203BActive Publication Date: 2017-08-25TONGJI UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
TONGJI UNIV
Publication Date
2017-08-25

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Abstract

The invention relates to a control system and a control method for improving an abnormal automobile start flutter noise based on a driving force. The system is respectively connected with a braking pedal and a braking main cylinder, and is arranged on an automobile braking system and a power assembly or a driving force control system; the system comprises a braking force detection module, a start driving torque control module, wheel speed sensors, an engine, an automatic gearbox and a differential-decelerator assembly, wherein the wheel speed sensor is arranged on each automobile wheel; the engine, the automatic gearbox and the differential-decelerator assembly are sequentially connected in a transmission manner; the differential-decelerator assembly is connected with the automobile wheels; the start driving torque control module is respectively connected with the braking force detection module, the engine, the automatic gear and the wheel speed sensors. Compared with the prior art, the control system and the control method for improving the abnormal automobile start flutter noise based on the driving force have the advantages of significant effects, simple construction and low cost.
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Description

technical field

[0001] The invention relates to the technical field of vibration and noise control of an automobile braking system, in particular to a control system and method for improving abnormal vibration and noise at starting of an automobile based on driving force. Background technique

[0002] With the development of social economy and the improvement of residents' living standards, cars are required by more and more users, and users' requirements for car performance are gradually increasing. On the basis of meeting basic use, more and more attention is paid to the vibration of cars. Noise comfort.

[0003] The low-speed start chatter problem of automobiles is a vibration and noise problem that occurs in the braking system of automatic transmission vehicles. The root cause of its occurrence is that the coefficient of static friction of the brake friction material is greater than the coefficient of dynamic friction. The factors that affect the abnormal noise of the c...

Claims

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