US 12,092,491 B2
Apparatus for sensing displacement of brake pedal
Byung Ki Kim, Gyeonggi-do (KR)
Assigned to HL MANDO CORPORATION, Gyeonggi-Do (KR)
Appl. No. 17/607,866
Filed by HL MANDO CORPORATION, Gyeonggi-do (KR)
PCT Filed Apr. 29, 2020, PCT No. PCT/KR2020/005808
§ 371(c)(1), (2) Date Oct. 30, 2021,
PCT Pub. No. WO2020/222581, PCT Pub. Date Nov. 5, 2020.
Claims priority of application No. 10-2019-0051747 (KR), filed on May 2, 2019.
Prior Publication US 2022/0205812 A1, Jun. 30, 2022
Int. Cl. G01D 5/14 (2006.01)
CPC G01D 5/145 (2013.01) [B60T 2220/04 (2013.01)] 13 Claims
OG exemplary drawing
 
1. An apparatus for sensing a displacement of a brake pedal, the apparatus comprising:
a shaft extending parallel to a movement direction of a piston of a master cylinder displaced by an operation of the brake pedal;
a magnet supported by the shaft;
a mounting member configured to couple the piston and the shaft; and
a sensor configured to detect a change in magnetic force by the magnet,
wherein the shaft and the magnet are accommodated in a shaft bore formed through or formed to be recessed in a hydraulic block including a plurality of passages and valves which control flow of a pressing medium, and
the shaft bore communicates with a cylinder bore formed in the hydraulic block and receiving the piston,
a cover member mounted on the magnet to cover the magnet and be slidable together with the magnet inside the shaft bore.