The brake principle of the brake system is illustrated and the model of pump brakecircuit is given.
阐明了制动系统的制动原理，给出了泵升制动电路的模型。
2
In the event of a failure of the first brakecircuit, the spring store part 86 can be deaerated in order to engage the parking brake.
在第一制动回路故障时，弹簧蓄能件86可以排气，以接合驻车制动器。
3
The system is composed of the electro-actuating mechanism, oil pump of high pressure, disc brake, pressure sensor, amplifier, interface circuit, computer and printer.