The brake master cylinder is a one-way acting piston hydraulic cylinder, and its function is to convert the mechanical energy input by the pedal mechanism into hydraulic energy. There are two types of brake master cylinders, single-chamber and dual-chamber, which are respectively used in single-circuit and dual-circuit hydraulic braking systems.
In order to improve the driving safety of automobiles, according to the requirements of traffic regulations, the service braking system of automobiles now adopts a dual-circuit braking system, which is composed of a series of double-chamber master cylinders (single-chamber brake master cylinders have been eliminated). dual-circuit hydraulic braking system.
At present, almost all of the dual-circuit hydraulic braking systems are servo braking systems or dynamic braking systems. However, in some miniature or light vehicles, in order to make the structure simple, and under the condition that the brake pedal force does not exceed the range of the driver’s physical strength, there are also some models that use a tandem dual-chamber brake master cylinder to form a dual-circuit human hydraulic brake. system.