The invention relates to the technical field of
vehicle braking systems, in particular to a redundant drive-by-wire hydraulic
braking system which comprises a
liquid storage unit, a
control unit and a braking unit. The
control unit comprises a first
braking system and a second
braking system; the second braking
system comprises a second pressure generating device; the second pressure generating device comprises a liquid pump module, the liquid pump module comprises a
hydraulic pump, and the
hydraulic pump is connected with a driving part used for controlling the
hydraulic pump to work; the oil inlet end of the hydraulic pump is connected with the
liquid storage unit; the oil outlet end of the hydraulic pump is connected with the
brake unit; the hydraulic pump of the second
brake system is directly connected to the
liquid storage unit, use of components such as a liquid storage cavity in a traditional
brake system is reduced, the production cost of the brake system is greatly reduced, meanwhile, the use amount of electromagnetic valves can be reduced to a certain degree, and the
logic complexity of the system is reduced.