汽车制动系统实验分析报告  

Analysis report on the experiment of automobile brake system

作　　者：贾癸卯 Jia Guimao(Anhui vocational and technical college,Anhui Wuhu 241002)

机构地区：[1]安徽机电职业技术学院汽车工程系,安徽芜湖241002

出　　处：《汽车实用技术》2019年第9期125-127,共3页Automobile Applied Technology

摘　　要：汽车行驶时能在短距离内迅速停车且维持行驶方向稳定性,在下长坡时能维持一定安全车速,以及在坡道上长时间保持停驻的能力称为汽车的制动性。制动距离是与行驶安全直接有关的一项制动效能指标,通常制动距离是指驾驶员开始踩着制动踏板到完全停车的距离。在反应时间T0之后是从加速踏板到制动踏板所需的换位时间以及为消除制动装置中的间隙和弹性所需的接合时间T1。在T1初期,由于时间很短,以往教学将这段时间内的汽车行驶速度近似等同于原速度,但其与实际情况略有差别。结果表明:驾驶员的脚在开始离开加速踏板到完全离开加速踏板这段时间内,由于发动机曲轴输出降低和发动机阻力矩以及汽车行驶阻力的影响,会导致减速度开始出现并不断增大,汽车行驶速度不断降低。The vehicle can stop quickly in a short distance and maintain the stability of the driving direction.It can maintain a certain safe speed in the lower long slope,and the ability to stay on the ramp for a long time is called the braking of the car.Braking distance is an indicator of braking efficiency directly related to driving safety.Usually,the braking distance refers to the driver's starting distance from the brake pedal to the full parking.After the reaction time T0,the transposition time required from the accelerator pedal to the brake pedal and the joint time required to eliminate the clearance and elasticity in the brake device are T1.In the early stage of T1,due to the short time,the driving speed in the past period was similar to the Yu Yuan speed in the past period,but it was slightly different from the actual situation.The results show that the driver's foot will begin to leave the accelerator pedal to completely leave the accelerator pedal for the period of time.The reduction of the engine crankshaft output,the engine resistance moment and the driving resistance of the motor will result in the decrease of the speed and the decreasing of the speed of the vehicle.

关 键 词：制动性 教学 行驶阻力 减速度 

分 类 号：U463.5[机械工程—车辆工程]