US 12,449,008 B2
Electromechanical brake and method of operating the same
Seungtae Baek, Seongnam (KR); Joon-kyu Song, Seongnam (KR); and Kyungho Jung, Yongin (KR)
Assigned to HL MANDO CORPORATION, Pyeongtaek-si (KR)
Appl. No. 18/000,547
Filed by HL MANDO CORPORATION, Pyeongtaek (KR)
PCT Filed Jun. 4, 2021, PCT No. PCT/KR2021/007042
§ 371(c)(1), (2) Date Dec. 2, 2022,
PCT Pub. No. WO2021/246828, PCT Pub. Date Dec. 9, 2021.
Claims priority of application No. 10-2020-0068095 (KR), filed on Jun. 5, 2020.
Prior Publication US 2023/0258237 A1, Aug. 17, 2023
Int. Cl. B60T 13/74 (2006.01); F16D 55/226 (2006.01); F16D 65/18 (2006.01); F16D 121/24 (2012.01); F16D 125/40 (2012.01)
CPC F16D 55/226 (2013.01) [F16D 65/183 (2013.01); F16D 2121/24 (2013.01); F16D 2125/40 (2013.01)] 13 Claims
OG exemplary drawing
 
1. An electromechanical brake, comprising:
a piston configured to advance and retreat to press a brake pad;
a power transmission unit configured to receive a driving force from an actuator to convert a rotational motion into a linear motion, and provide the converted driving force to the piston; and
a position adjustment unit configured to adjust a relative position of the piston with respect to the power transmission unit;
wherein the power transmission unit comprises:
a spindle rotating by receiving the driving force from the actuator, and
a nut connected to the spindle and moving forward or backward by rotation of the spindle in a first direction or a second direction to advance and retreat the piston,
wherein the position adjustment unit comprises:
a first screw thread formed on an outer circumferential surface of the nut,
a second screw thread formed on an inner circumferential surface of the piston and meshing with the first screw thread, and
an adjuster provided between the spindle and the nut and configured to rotate the nut in the first direction or the second direction by rotation of the spindle to advance and retreat the relative position of the piston.