Brake apparatus and brake system
AssigneeHitachi Automotive Systems, Ltd.
InventorsMasaki Misunou, Ryohei Maruo, Chiharu Nakazawa
Life of this patent
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Abstract
A brake apparatus is provided which has applicability to a wide range of vehicles. The brake apparatus includes a master cylinder provided in such a manner that a piston is axially operable in a master cylinder housing, and a stroke simulator including a reaction force piston axially operable by brake fluid introduced into a stroke simulator housing. The master cylinder housing is fixed to the stroke simulator housing. The stroke simulator housing is positioned between the master cylinder housing and a fixation piece structured to fix the stroke simulator housing to the vehicle. The fixation piece is spaced from the master cylinder housing.
Claims12
A brake apparatus comprising:
- a master cylinder provided in such a manner that a piston is axially operable in a master cylinder housing;
- and
- a stroke simulator including a stroke simulator housing, and a reaction force piston axially operable by brake fluid introduced into the stroke simulator housing formed separately from the master cylinder housing,
- wherein the master cylinder housing is fixed to the stroke simulator housing,
- wherein the stroke simulator housing is positioned between the master cylinder housing and a fixation piece structured to fix the stroke simulator housing to a vehicle,
- wherein the fixation piece is spaced from the master cylinder housing such that the stroke simulator housing is located between the fixation piece and the master cylinder housing in a direction in which the master cylinder and the stroke cylinder are arranged,
- wherein the fixation piece is fixed to the stroke simulator housing, and
- wherein the reaction force piston is housed entirely in the stroke simulator housing.
A brake system comprising:
- an actuator configured to control a wheel cylinder hydraulic pressure;
- and
- a brake apparatus formed separately from the actuator, the brake apparatus being operable according to a brake operation of a driver, the brake apparatus including:
- a master cylinder configured to generate a brake hydraulic pressure by the brake operation of the driver;
- and
- a stroke simulator configured to generate a simulative reaction force of a brake operation member according to a supply of brake fluid delivered out of the master cylinder,
- wherein the master cylinder includes a master cylinder housing provided in such a manner that a piston is axially operable in the master cylinder housing,
- wherein the stroke simulator includes a stroke simulator housing containing a reaction force piston axially operable by the brake fluid supplied therein and formed separately from the master cylinder housing,
- wherein the master cylinder housing is fixed to the stroke simulator housing,
- wherein the stroke simulator housing is positioned between the master cylinder housing and a fixation piece structured to fix the stroke simulator housing to a vehicle,
- wherein the fixation piece is spaced from the master cylinder housing such that the stroke simulator housing is located between the fixation piece and the master cylinder housing in a direction in which the master cylinder and the stroke cylinder are arranged,
- wherein the fixation piece is fixed to the stroke simulator housing, and
- wherein the reaction force piston is housed entirely in the stroke simulator housing.
Dependencies are inferred from the claim text.