汽车作为一种高速便捷的现代交通运输工具,制动性能的好坏无疑是保证汽车行驶安全的最重要条件之一。但汽车有了良好的制动系统,并不等于在行车制动时只要用力踩制动踏板就一定会有好的制动效果。因此,必须正确地掌握在各种道路和交通状况不断变化的条件下,因地制宜地科学 As a kind of high-speed and convenient modern transportation vehicle, the braking performance is undoubtedly one of the most important conditions to ensure the safety of vehicles. But the car has a good braking system, does not mean that as long as the brake on the service brake hard brake pedal will have a good braking effect. Therefore, it is imperative to correctly grasp the sciences and practices of local conditions under the conditions of ever-changing roads and traffic conditions