An object of the present invention is to provide a hydraulic control apparatus capable of further effectively preventing or reducing a vibration. A second unit includes a housing including fluid passages and the like provided therein and configured to be mounted on a vehicle, a rotational driving shaft provided inside the housing, and a plurality of pump portions configured to be activated by a rotation of the rotational driving shaft and disposed in a direction around a central axis of the rotational driving shaft inside the housing. The pump portions are provided in such a manner that the number of pump portions positioned on a vertically lower side is larger than the number of pump portions positioned on a vertically upper side with respect to the central axis of the rotational driving shaft with the housing mounted on the vehicle.

A hydraulic pressure control unit capable of suppressing application of an external force thereto in comparison with the related art at the time when mounted to a straddle-type vehicle is obtained. A hydraulic pressure control unit (1) includes: a base body (10) formed with an internal channel through which a brake fluid flows; an inlet valve and an outlet valve that open/close the internal channel during anti-lock brake control; a first coil (61) as a drive source of the inlet valve; a second coil as a drive source of the outlet valve; and a circuit board (36) that is electrically connected to the first coil (61) and a second coil and controls energization of the first coil (61) and the second coil. The base body (10) is held to a front fork (216). When the straddle-type vehicle to which the hydraulic pressure control unit (1) is mounted is seen in a front view, the circuit board (36) is located behind the front fork (216) and the base body (10), and the first coil (61) and the second coil are erected from a rear surface of the base body (10).

An object of the present invention is to provide a brake apparatus capable of acquiring a desired brake hydraulic pressure when an opening failure has occurred in a shut-off valve. The brake apparatus includes a first pump configured to supply brake fluid to a hydraulic circuit connecting a master cylinder and a wheel cylinder to each other, a first shut-off valve provided between a discharge portion of the first pump in the hydraulic circuit and the master cylinder, and a second shut-off valve provided between the first shut-off valve and the master cylinder.

A brake hydraulic pressure control device (2) controls a fluid pressure of a brake fluid supplied to wheel cylinders mounted on brake calipers (107, 114) of a motorcycle (100). The brake hydraulic pressure control device (2) includes: a base body in which flow passages are formed; and valves which open or close the flow passages. The base body is fixed below a spring in connecting portions (130A, 130B) which connect a trunk portion (101) of the motorcycle (100) and a wheels (front wheel (106), rear wheel (113)) to each other.

An ABS modulator support structure of a saddle type vehicle includes a main frame, a down frame, a pair of shroud which cover the right and left side of the frames, a radiator, a reserve tank which stores a coolant for the radiator, and an ABS module. The radiator is arranged on one (left side) side of the down frame 18 in a width direction of the vehicle. The ABS module is arranged on the other (right side) of the sides of the down frame in the width direction of the vehicle. The reserve tank and the shrouds are arranged outside the ABS module.

A brake hydraulic pressure controller includes a base body that is formed with a channel for a hydraulic fluid therein. A first banjo with a first end, to which a brake pipe is connected, is fixed to a first port of the channel by a banjo bolt. A second end of the first banjo, to which the brake pipe is not connected, is inserted in a bottomed hole that is perforated in specified depth on an outer surface of the base body and into which the hydraulic fluid does not flow in an entire region of the specified depth, or extends to the outside of a side of the base body and is locked to an edge on the side of the base body.

The invention is directed to an inertial sensor attachment structure including: a floating bracket which is fixed to a vehicle body frame via a vibration absorbing member; an inertial sensor attached to a first attachment surface of the floating bracket; and an ABS unit attached to a second attachment surface of the floating bracket.

An object of the present invention is to provide a hydraulic control apparatus and a brake system capable of preventing or cutting down a cost increase. According to one aspect of the present invention, a hydraulic control apparatus includes a hydraulic source provided inside a housing and configured to generate a hydraulic pressure in a hydraulic generation unit mounted on a wheel via an oil passage, a switching electromagnetic valve provided integrally in the housing and configured to be used to permit an inflow of brake fluid into a stroke simulator provided separately from the housing and configured to generate a reaction force of a brake pedal operation performed by a driver, and a control unit provided integrally in the housing and configured to be used to drive the hydraulic source and the switching electromagnetic valve.

Provided is a motorcycle which can provide a space inside a main frame to place other members therein, and make it difficult for an outside impact to be transmitted to a hydraulic unit. A motorcycle comprises a head pipe which supports a rotary shaft around which a handle is rotatable with respect to a vehicle body; a pair of right and left main frames extending in a forward and rearward direction from the head pipe; and a hydraulic unit mounted to one of the pair of right and left main frames, wherein the pair of right and left main frames have increased-space portions, which define a space with a dimension increasing in an obliquely rearward direction from the head pipe toward maximum-space portions of the main frames, and wherein the hydraulic unit is mounted to an outer portion of the increased-space portion of one of the main frames.

A brake unit (1) includes: a master cylinder (2) unit which is fixed to a vehicle body, and which includes a master cylinder (2b) that is received within a first housing (20), and that is arranged to be interlocked with a brake pedal; and a pump unit (3) which is arranged to be driven by a motor (3), and which includes a second housing (30) within which a pump arranged to increase a wheel cylinder pressure is received, the master cylinder unit (2) and the pump unit (3) being integrally fixed through a mount (6) which is an elastic member.