The invention discloses a braking
energy storage device for a pure
electric bus and a working method thereof. The braking
energy storage device for the pure
electric bus comprises an
air compressor, acopper coil tube, a condenser, a dryer, a four loop, a foot operated
brake valve, a hand
brake valve, a regenerated air reservoir, a front braking air reservoir, an auxiliary air reservoir, a hand braking air reservoir, a rear braking air reservoir and a controller; the
air compressor, the
copper coil tube, the condenser, the dryer and the regenerated air reservoir are connected with each other in sequence through
copper pipes and mutually form a main air source pipeline; the four loop, the front braking air reservoir, the auxiliary air reservoir, the hand braking air reservoir, the rear braking air reservoir, the foot operated
brake valve, the hand brake valve and the controller are connected with each other through nylon pipes to form a braking
energy supply assembly; and according to the working method, condensation and
sewage draining of the pipeline are realized in an electric controlled and temperature controlled manner; and the controller controls the
air compressor to start and stop. According to the braking
energy storage device for the pure
electric bus and the working method thereof, the working efficiency of a
braking system is enhanced on the basis of guaranteeing thesafety and reliability of the whole
braking system, and the energy utilization efficiency is enhanced.