It includes four systems such as: service brake system, auxiliary brake system, parking brake system, and exhaust gas brake system.

该系统具备行车制动、辅助制动、停车制动及排气制动四个制动系统。

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It can close the engine's exhaust pipe and make the engine to be an auxiliary decelerating brake and absorbing the energy of the motor by the engine.

用来关闭发动机的排气管，从而把发动机作为辅助减速制动器使用，把汽车的能量由发动机吸收掉。

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