US 11,999,336 B2
Stroke simulator and brake control apparatus
Ryohei Maruo, Kawasaki (JP); and Takahiro Kawakami, Atsugi (JP)
Assigned to Hitachi Astemo, Ltd., Hitachinaka (JP)
Appl. No. 17/274,375
Filed by Hitachi Astemo, Ltd., Hitachinaka (JP)
PCT Filed Aug. 5, 2019, PCT No. PCT/JP2019/030636
§ 371(c)(1), (2) Date Mar. 8, 2021,
PCT Pub. No. WO2020/059325, PCT Pub. Date Mar. 26, 2020.
Claims priority of application No. 2018-173748 (JP), filed on Sep. 18, 2018.
Prior Publication US 2021/0339724 A1, Nov. 4, 2021
Int. Cl. B60T 13/74 (2006.01); B60T 7/04 (2006.01); B60T 8/40 (2006.01); B60T 13/14 (2006.01); B60T 13/66 (2006.01)
CPC B60T 8/409 (2013.01) [B60T 7/042 (2013.01); B60T 13/142 (2013.01); B60T 13/662 (2013.01); B60T 2270/82 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A stroke simulator configured to generate an operation reaction force of a brake pedal, the stroke simulator comprising:
a cylinder;
a piston contained in the cylinder movably in a direction of an axis of the cylinder; and
an elastic member disposed in the cylinder so as to be compressed according to a movement of the piston and restricted from being deformed in a radial direction of the cylinder when the movement of the piston exceeds a predetermined stroke,
wherein the elastic member has a hollow shape,
wherein the piston includes a piston main body and a stem, and
wherein the stem is inserted in an inner periphery of the elastic member, and
wherein a groove is formed on the inner periphery of the elastic member.