Patent ID: 11958451
Assignee: BWI (SHANGHAI) CO., LTD.
Field: Transport (Mechanical engineering)
Classification: CPC B | IPC B

Claim 7:
8. An electro-hydraulic brake assembly comprising:
an HCU body including a top surface and a bottom surface opposite the top surface, the HCU body defining a master cylinder bore and a pressure supply bore, wherein the HCU body includes a generally rectangular portion defining the top surface, the bottom surface, a side surface, a front surface, and a rear surface disposed opposite the front surface, wherein the HCU body further includes a protrusion extending outwardly from the rear surface and upwardly from the bottom surface, and wherein the pressure supply bore is formed within the protrusion;
a piston slidably disposed in the master cylinder bore and configured to supply brake fluid to a wheel brake in response to pressing of a brake pedal; and
a pressure supply unit including:
a pressure supply piston disposed within the pressure supply bore;
a motor attached to the HCU body and having a motor shaft; and
an actuator mechanism configured to cause the pressure supply piston to translate linearly through the pressure supply bore in response to rotation of the motor shaft, the actuator mechanism including a threaded shaft configured to be rotated by the motor shaft and a nut coupled to the pressure supply piston, and a plurality spherical members located between the nut and the threaded shaft for transferring rotation of the threaded shaft to an axial displacement of the nut.