汽车制动系统实验分析报告
|
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.
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.
引文
[1]雷同飞.基于路面状况的汽车制动性能仿真研究[D].哈尔滨:哈尔滨工业大学,2007.
[2]苏松刚.基于虚拟现实技术的汽车制动性能研究[D].哈尔滨:哈尔滨工业大学, 2003.
[3]余志生.汽车理论[M].北京:机械工业出版社,2001.
[4]周航,金月.浅析汽车制动性能与技术对交通安全的影响[J].民营科技, 2017(10):66-66.
[5]常桂秀.汽车制动性评价及制动性能检测研究[J].科技创新与应用, 2016(5):144-144.
[6]陈俊武.汽车制动性评价及制动距离效果分析[J].电子测试,2017(6):106-107.
[2]苏松刚.基于虚拟现实技术的汽车制动性能研究[D].哈尔滨:哈尔滨工业大学, 2003.
[3]余志生.汽车理论[M].北京:机械工业出版社,2001.
[4]周航,金月.浅析汽车制动性能与技术对交通安全的影响[J].民营科技, 2017(10):66-66.
[5]常桂秀.汽车制动性评价及制动性能检测研究[J].科技创新与应用, 2016(5):144-144.
[6]陈俊武.汽车制动性评价及制动距离效果分析[J].电子测试,2017(6):106-107.
© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号 地址：北京市海淀区学院路29号 邮编：100083 电话：办公室：(+86 10)66554848；文献借阅、咨询服务、科技查新：66554700 |