Foreword
This article refers to the address: http://
The automotive brake system plays a vital role in the safe driving of the car. The electronic control of the brake system greatly enhances the active safety of the car. For automotive products, automotive brake systems are closely related to personal safety and economic efficiency. At present, the automobile brake system has been widely used in automobile design, but the brake system applied in the vehicle is various, and the small edited data will introduce the function and classification of the automobile brake system in this article.
First, the role of the car brake system
The function of the car brake system is to make the running car forcefully decelerate or even stop according to the driver's request; to make the stopped car stably parked under various road conditions (including on the slope); The car speed remains stable.
The braking effect on the car can only be the external force acting on the car and the direction opposite to the direction of the car. The magnitude of these external forces is random and uncontrollable. Therefore, a series of special devices must be installed on the car to realize The above functions.
The automobile brake system refers to a brake mechanism dedicated to the brake device in order to ensure the safe driving of the car, improve the average speed of the car, and the like. In general, the automobile brake system includes two independent devices, a service brake device and a parking brake device. The service brake device is operated by the driver's foot, so it is also called the foot brake device. The parking brake device is manually operated by the driver, so it is also called a hand brake device.
The function of the service brake is to slow down the running car or stop it within the shortest distance. The function of the parking brake device is to keep the cars that have stopped on various road surfaces. However, sometimes in an emergency, the two brake devices can be used simultaneously to increase the effect of the car brake. For some special-purpose vehicles and cars that are often driven in the mountains, long-term and frequent braking will cause the service brakes to overheat. Therefore, various types of auxiliary brakes are often added to these vehicles to stabilize the downhill slope. Speed.
According to the braking energy situation, the braking system can be divided into three types: the human braking system, the dynamic braking system, and the servo braking system. The human brake system uses the driver's physical strength as the braking energy; the dynamic brake system uses the air pressure or hydraulic pressure converted by the engine power as the braking energy; and the servo brake system uses the human and engine power as the braking energy. In addition, according to the transmission mode of braking energy, the braking system can be divided into mechanical, hydraulic, pneumatic and electromagnetic types.
In a variety of automotive brake systems, the brakes are components of the automotive brake system that are used to generate forces that prevent vehicle motion or motion. At present, the brakes used in the types of automobiles are friction brakes, that is, the braking torque that prevents the movement of the vehicle is derived from the friction between the fixed element and the rotating working surface.
Second, the car brake system form classification
1, drum brakes
The drum brake is a traditional brake system. Its working principle can be described as a coffee cup. The brake drum is like a coffee cup. When you put five fingers into the rotating coffee cup, the finger is Brake pads, as long as you point the five to the outside, rubbing the inner wall of the coffee cup, the coffee cup will stop rotating. The drum brake on the car is simply composed of the brake oil pump, piston, brake pad and tympanic chamber. The high-pressure brake oil of the brake cylinder pushes the piston, and exerts a force on the two half-moon brake shoes to press the inner wall of the drum to prevent the brake drum from rotating by friction to achieve the braking effect.
2, disc brakes
Similarly, the working principle of the disc brake can be described by a dish. When you hold the rotating disc with your thumb and forefinger, the disc will stop rotating. The disc brake on the car is a brake oil pump, a brake connected to the wheel. The brake calipers on the disc and the disc. When braking, the high-pressure brake oil pushes the piston in the caliper to press the brake shoes against the brake disc to produce a braking effect.
Disc brake disc brakes are sometimes called disc brakes. They are divided into ordinary disc brakes and ventilated disc brakes.
The ventilated disc brakes reserve a gap between the two brake discs to allow airflow to pass through the gaps. Some ventilating discs also drill a number of circular vents on the disc surface or cut out ventilation slots on the disc surface. Or prefabricated rectangular vents. Ventilation disc brakes use airflow, which is better than ordinary disc brakes. The main advantage of the disc brake is that it can brake quickly when braking at high speed. The heat dissipation effect is better than that of the drum brake. The braking performance is constant and it is easy to install advanced electronic equipment like ABS. The main advantage of the drum brake is the brake. The hoof wears less, the cost is lower, and it is easy to repair. Since the absolute braking force of the drum brake is much higher than that of the disc brake, it is commonly used in rear-wheel drive trucks.
3, disc brake
In recent years, the speed of cars has been increasing, and the total weight of trucks and buses has been increasing. In addition, the car's center of gravity is generally reduced and the use of small-diameter wide-section tires is widely used to limit the installation position of the brakes. Therefore, the use of brake discs with better brake heat stability in heavy-duty trucks and cars is increasing. Disc brakes can be divided into caliper disc brakes and full disc brakes.
Conclusion
Since the birth of the car, the car brake system has played a vital role in the safety of the car. The car brake system is vital to our lives. When driving daily, accidents caused by braking problems are not uncommon. Understanding the function and classification of the brake system is conducive to the detection and troubleshooting of the brake system of the car, ensuring safe driving of the car.
Travel Charger Adapter is convenience for these people who always travel in many countries. Desktop Power Adapter have normal DC connector for your need, and wall power adapter have mutil plug, like US/UK/AU/EU etc. We also can produce the item according to your specific requirement. The material of this product is PC+ABS. All condition of our product is 100% brand new.
Our products built with input/output overvoltage protection, input/output overcurrent protection, over temperature protection, over power protection and short circuit protection. You can send more details of this product, so that we can offer best service to you!
Travel Charger Adapter
Travel Charger Adapter,Portable Travel Charger Adapter,Mini Travel Charger Adapter,Travel Charger Supply
Shenzhen Waweis Technology Co., Ltd. , https://www.waweis.com