The application provides a JZ-7
remote control braking system, which comprises a total air
pipe, a first passage, a second passage and a third passage, a
relay valve, an equalizing air cylinder, a first high-speed electric air valve, an
overcharge air cylinder, a control device, a CCU and a remote
network control unit, the total air
pipe is connected with the
overcharge pipe of the
relay valve after being communicated with the first passage, and the gas outlet of the first passage is also communicated with the exhaust port of the
overcharge air cylinder; the total air pipe is connected with the equalizing pipe of the
relay valve after being communicated with the second passage, and the gas outlet of the second passage is also communicated with the first high-speed electric air valve and the equalizing air cylinder respectively; the total air pipe is connected with the
cut-off pipe of the
relay valve after being communicated with the third passage, and the
train pipe of the
relay valve is also connected with an electric air release valve. The application can realize remote networking operation of the
braking system, and the locomotive can implement braking and relieving functions without operating the automatic
brake valve.