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.

A brake fluid pressure control unit that can improve cost performance of a brake system is obtained. A brake system that includes such a brake fluid pressure control unit and a motorcycle are also obtained. A brake fluid pressure control unit 50 includes: an inlet valve 21 provided in a primary channel 14; an outlet valve 22 provided in a secondary channel 15; a pressurizing/transferring mechanism 25 provided on a downstream side of the outlet valve 22 in the secondary channel 15 and pressurizing and transferring a brake fluid in the secondary channel 15; and a controller 51 for executing a fluid pressure control operation of the brake fluid in a wheel cylinder 13, and a power source of the pressurizing/transferring mechanism 25 is a drive mechanism 103 of the motorcycle 100, the drive mechanism 103 being driven in a state where the fluid pressure control operation by the controller 51 is not executed.

The invention has a purpose of obtaining a brake hydraulic pressure controller capable of attaching a coil casing to a base body with a simple configuration, a motorcycle brake system, and a manufacturing method of a brake hydraulic pressure controller.

In the brake hydraulic pressure controller, at least one projected portion is provided in the coil casing, at least one hole portion is provided in a surface of the base body to which the coil casing is attached, the coil casing is attached to the base body in a state where the projected portion is inserted in the hole portion, the projected portion includes a hook portion that bulges in a direction to cross a projected direction of said projected portion, the coil casing is held by the base body when a part of the base body abuts a surface of a base-side region that is a region near a base of the projected portion with a top of a bulge of the hook portion being a reference.

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 assembly for an electrohydraulic brake system of a vehicle, including at least one brake control module which has an electronically actuated pressure supply device which, in the installed state of the assembly, is fluidically coupled to at least one wheel brake of the vehicle. The brake control module is connected to a holding device for arrangement on a vehicle body. The brake control module includes a mechanical stop device which, when the assembly is installed, is spaced apart at a distance from an adjacent vehicle component and, by interaction with the vehicle component, emits a warning signal in the event of a loss of support of the brake control module.

The present disclosure obtains a hydraulic pressure control unit capable of appropriately diagnosing presence or absence of fixation of an electromagnetic valve. In the hydraulic pressure control unit according to the present disclosure, a controller includes: an acquisition section that acquires a current value of a current flowing through a coil of the electromagnetic valve in a hydraulic pressure control mechanism; and a diagnosis section that determines whether the current value has exhibited behavior of being temporarily reduced in a process in which the current value is increased at initiation of applying the current to the coil of the electromagnetic valve, so as to diagnose the presence or the absence of the fixation of the electromagnetic valve.

An object of the present invention is to provide a hydraulic control apparatus capable of layout flexibility. A hydraulics control apparatus includes a second unit (a hydraulic unit) and a first unit (a stroke simulator unit). The second unit includes a housing including a brake fluid passage therein, a positive pressure fluid passage and a back-pressure fluid passage (a unit connection fluid passage) each having one end side connected to the brake fluid passage, a positive pressure port and a back-pressure port (a unit connection port) provided on a surface of the housing and connected to the other end sides of the positive pressure fluid passage and the back-pressure fluid passage, a pump (a hydraulic source) provided inside the housing and configured to generate a hydraulic pressure in each of wheel cylinders of a vehicle via the brake fluid passage, and a motor attached to a surface of the housing and configured to actuate the pump. The first unit includes a stroke simulator. The stroke simulator is configured to generate a reaction force of the brake pedal operation. The first unit further includes a first connection fluid passage and a second connection fluid passage (a simulator connection fluid passage) each having one end side connected to the stroke simulator, and a simulator first connection port and a simulator second connection port (a simulator connection port).

An electronic control unit for controlling a vehicle part is provided herein. The electronic control unit comprises a housing. The housing has an exterior surface and mounting elements on the exterior surface. The mounting elements are adapted for fastening the housing to a structure of a vehicle.

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.

A motorcycle includes a main frame, a seat frame connected to a rear portion of the main frame and extending backward to support a seat, an auxiliary frame reinforcing the seat frame, and an acceleration sensor. The acceleration sensor is supported at a position under the seat frame and above the auxiliary frame in a side view by a bracket extending from the seat frame or the auxiliary frame. Side surfaces of the acceleration sensor are covered with a vehicle body cover.