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US 11,999,336 B2Granted
Stroke simulator and brake control apparatus
AssigneeHitachi Astemo, Ltd.
InventorsRyohei Maruo, Takahiro Kawakami
Life of this patent
Estimating the term…
Abstract
A stroke simulator is configured in such a manner that an elastic member disposed in a cylinder of the stroke simulator is restricted from being deformed in a radial direction of the cylinder.
Claims12
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.
5 more elements
A brake control apparatus comprising:
- a stroke simulator configured to generate an operation reaction force of a brake pedal,
- the stroke simulator including
- 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.
6 more elements
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 elastic member has a through-hole,
- wherein the piston includes a piston main body and a stem, and
- wherein a shaft member of the stem of the piston is inserted in the through-hole of the elastic member, and
- wherein inner peripheral surface of the through-hole of the elastic member is out of contact with an outer peripheral surface of the shaft member of the stem of the piston until the movement of the piston reaches the predetermined stroke, and is brought into contact with the outer peripheral surface of the shaft member of the stem of the piston when the movement of the piston exceeds the predetermined stroke.
6 more elements
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,
- wherein the stem is inserted in an inner periphery of the elastic member, and
- wherein a groove is formed on an outer periphery of the elastic member.
5 more elements
Dependencies are inferred from the claim text.