Study Of The Vehicle Braking Performance Structure And Test Methods

Because of the car stressing quantification and fast pace, no matter for the highway transportation or the highway transportation, The safety reliability and service life of the brake were put forward higher requirements, To brake for simulation and analysis is becoming more and more important. Taking drum brake of SUV as the research object, the stress field of finite element simulation analysis, which can satisfy the intensity is required to provide basis for trial in the device of ABS calibrating test can meet the performance requirements of the vehicle to provide the reference.This paper introduces the drum brakes, the main design parameters and mechanics foundation, the brake drum brake shoes and microstructure and hardness on analysis of tests to determine the brake performance parameters; Using CATIA software based on the brakes of major parts of geometry model, and the model can in ABAQUS finite element analysis software to brake for simulation, divided into two steps to analysis the brake drum motionless and turn two different times of stress field and displacement of the brake is simulated and analyzed, and combined with finite element analysis from the braking torque of the results and through the experience of the formula to calculate the results are not significant to verify the analysis of the accuracy of the results.In order to validate the ABS system and vehicle matching, In this paper the verification is not the brake accord with brake ABS device strength, under the premise of the brake system and the arms and calibration system testing, in the pavement, adhesion coefficient is different in different speeds and vehicle and the loaded no-load conditions, and by measuring the velocity of the corresponding under braking distance and average reducing speed to determine the ABS system performance stability, to optimize and improve the efficiency of brake braking, and put forward the Angle and increased vehicle set the set speed and braking performance evaluation of Suggestions.The finite element simulation analysis has called the important link of the automobile parts design. Compared with the traditional design method, it shorter design cycle, improved the quality of design, and reduce the labor intensity of the designer. In this paper a sport utility vehicle drum brakes, finite element analysis, get the analysis results of the brake further optimization design provides theory basis.