摘要:
Provided is a master cylinder apparatus with a reduced size enabled by simplifying the fluid passageway configuration. A master cylinder apparatus (A1) which includes a base member (10) containing a fluid passageway for brake fluid and to which an operation of a brake operator is inputted is provided with: a master cylinder (1) installed on the base member (10) to generate a fluid pressure based on an input produced by operating the brake operator; and at least two solenoid valves attached to one side of the base member (10) to open or close the fluid passageway. The two solenoid valves are disposed symmetrically with respect to a central axis (O) along the axial direction of the master cylinder (1) as viewed from a direction perpendicular to the one side of the base member (10).
摘要:
An object of the invention is to provide a stroke simulator and a bush for a stroke simulator configured so that a bush provided to a stroke simulator can be attached without direction management. The stroke simulator generates brake reaction force by a simulator piston that is displaced within a cylinder by hydraulic pressure generated according to the operation of a brake pedal by a driver. A cylindrical rubber bush (226) which is elastically deformed in an axial direction by pressure from the simulator piston to generate brake reaction force, the bush characterized in that a first end section (226c1) on the simulator piston side and a second end section (226c2) facing the first end section (226c1) contain the same number, at least two, of concave sections (226d) which are concaved in the axial direction, and the concave section (226d) formed in the first end section (226c1) and the concave section (226d) formed in the second end section (226c2) are formed in different positions in the axial direction.
摘要:
There is provided a vehicle brake system wherein it is possible to prevent the ingress of brake fluid leaking from the cylinder main body of an electric brake actuator constituting the vehicle brake system, and to dispose the electric brake actuator in a power plant storage chamber in a space-efficient manner. A vehicle brake system configured by disposing an input device and a motor cylinder for generating brake fluid pressure by driving a hydraulic pressure controlling piston stored in a cylindrical cylinder main body by means of an electric motor at least in accordance with the brake operation, the vehicle brake system being characterized in that: the motor cylinder is attached in a manner such that at least a portion of the cylinder main body overlaps with a power plant in the vehicle up and down direction; and the electric motor is disposed on top of the cylinder main body.
摘要:
A structure for attaching a motor cylinder device to the body of the vehicle, said vehicle brake system including: an input device via which an operator inputs brake operations; and a motor cylinder device that generates hydraulic brake pressure on the basis of electrical signals based on said brake operations. Said motor cylinder device has: an electric motor that operates on the basis of electrical signals; a driving-force transmission unit that transmits driving force from the electric motor; and a cylinder mechanism that applies pressure to a brake fluid by moving a piston axially by means of the driving force transmitted by the driving-force transmission unit. A mount for attaching the motor cylinder device to the body of the vehicle is provided near the center of gravity of the motor cylinder device. This makes it possible to minimize displacement of the electric brake actuator when subjected to vibration.
摘要:
An input device of a vehicle brake system integrally includes an integrally provided master cylinder 34 and a stroke simulator 64 which communicate via a hydraulic communication path. The stroke simulator 64 is provided with a simulator piston 68 accommodated within a simulator accommodation chamber 64c. The simulator accommodation chamber 64c has an opening portion 64e enabling the insertion of the simulator piston 68 into the simulator accommodation chamber 64c from the side on which the brake pedal is disposed relative to the dashboard 2.
摘要:
A cylinder device (A2), which is provided with: a substrate (11) having a cylinder hole (11a) and a reservoir union port (17a); a piston (12) which is inserted into the cylinder hole (11a); a regulation member (19) which regulates the rearward limit of the piston (12); a reservoir (40) having a liquid supply part (41); and a seal member (44) which is for the reservoir and which is externally fitted to the liquid supply part (41). Therein: the substrate (11) comprises a mounting hole (11h) and a first communication hole (17c) which open to the reservoir union port (17a) and the cylinder hole (11a); the regulation member (19) is inserted into the mounting hole (11 h); and the liquid supply part (41) has a cut-out section (41d) and a tip section (41 e) arranged so as to face the regulation member (19). This structure enables the number of components to be reduced, reduces the size of the substrate (11), and also prevents air from collecting inside the reservoir union port (17a).