The brake master cylinder is a one-way 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 double-chamber, which are used in single-circuit and double-circuit hydraulic braking systems respectively.
In order to improve the driving safety of cars, according to the requirements of traffic laws, the service brake system of automobiles now adopts a dual-circuit braking system, that is, a tandem dual-chamber master cylinder (single-chamber master cylinder has been eliminated). The dual-circuit hydraulic brake system.
At present, almost all adopting dual-circuit hydraulic braking systems are servo braking systems or dynamic braking systems. However, in some miniature or light-duty vehicles, in order to make the structure simple, under the condition that the brake pedal force does not exceed the driver's physical strength, some models use tandem dual-chamber master cylinders to form a dual-circuit human hydraulic brake. system.