公开(公告)号：US20240157922A1

公开(公告)日：2024-05-16

申请号：US18420375

申请日：2024-01-23

Applicant: DENSO CORPORATION

Inventor： Kengo ITO ,  Etsugo YANAGIDA ,  Koichi FUKAYA ,  Hiroyuki KODAMA ,  Sho FUKAMI

IPC: B60T13/14 ,  B60T7/04

CPC classification number: B60T13/147 ,  B60T7/04

Abstract: A brake device includes a brake pedal, a pedal operation detection section, a tank section, an actuator, a master cylinder, a brake fluid path and a reaction force generating section. The master cylinder includes a cylinder section that forms a storage chamber for storing brake fluid and a piston rod that connects to the brake pedal and pushes out the brake fluid stored in the storage chamber and discharges the brake fluid to an outside of the cylinder section by moving a distance corresponding to an amount of operation of the brake pedal. The brake fluid flow path guides the brake fluid discharged from the storage chamber by being pushed out by the piston rod to the tank section. The reaction force generating section includes an elastic member that generates a reaction force on the brake pedal by elastically deforming according to the amount of operation of the brake pedal.