Do you know the main factors that affect the braking performance of a car?
Posted by Admin | 11 Jul
The car braking system can effectively shorten the braking distance and braking time. The shorter the braking distance, the higher the efficiency of the braking system and the better the safety performance. So what factors will affect the braking distance? NINGBO CIFT AUTO PARTS CO.,LTD will summarize with you.
1. The suspension system has a certain influence on the braking distance In fact, the car suspension system has a certain influence on the braking distance. When the car's suspension system brakes, the car's center of gravity moves forward, causing excessive compression of the car's front suspension, increasing the load on the front suspension. At this time, the braking effect of the rear wheels will be weakened, resulting in an increase in the braking distance.
2. Instantaneous speed before braking (initial speed) That is the speed before braking. Generally speaking, the faster the speed, the longer it takes for the vehicle to come to a complete stop and the longer the braking distance.
3. The weight of the car affects the braking distance to a certain extent The heavier the car, the greater the inertia and the longer the braking distance. Therefore, the weight of the car can also affect the braking distance to a certain extent. But that doesn't mean heavier cars need longer braking distances than lighter ones. For example, some performance cars are much heavier than domestic A-class cars, but their braking performance is relatively better. Generally speaking, it includes two conditions: no-load and full-load. The braking distance of a vehicle is detected as no-load condition.
4. The tire is the carrier of the car braking system Tires are also one of the key components that determine braking distance. The quality and specification of the tire will affect the braking distance, such as the width and flat ratio of the tire will affect the braking distance more or less; the grip of the tire will directly affect the braking ability; the drainage capacity of the tire in rainy days will also affect the car's performance in the rain. Braking ability; the friction coefficient of the tire tread is equally important as the friction coefficient of the road surface, which will have an impact on the braking ability of the car.
5. Braking system The braking system is a series of special devices used to make the outside world (mainly the road) exert a certain force on some parts of the car (mainly the wheels), so as to make it reach a certain level. Generally, it is mainly composed of two parts: brake control mechanism and brake. The working state of the braking system also directly affects the braking distance of the car. For example, whether the brake disc (brake disc) is old or new, the brake fluid (brake oil) is consumed, and whether frequent braking causes heat attenuation. Therefore, the braking system must be regularly checked and maintained before driving.
6. Anti-lock braking system The ABS system of the car is used to prevent the wheels from locking when braking, so as to ensure the steering performance of the car when braking. When the car wheels are rolling, the slip rate is about 20%, so as to ensure the large adhesion between the wheels and the ground, and the braking effect is good. The ABS system can automatically adjust the braking force of the wheels to ensure a reasonable slip rate between the tires and the road surface, and prevent the wheels from locking and slipping during braking, resulting in loss of control of the vehicle, turning and sideslip, effectively shortening the braking distance, making the The vehicle is easy to operate. When the car tires are braked urgently on dry roads or on low-adhesion roads, the braking distance will be longer, which is very unfavorable for driving safety and prone to rear-end collisions.
7. Pavement smoothness This is also easy to understand. If the same vehicle brakes at the same initial speed, the required braking distances on asphalt and snow roads will definitely be different.