A power-operated hydraulic brake system for a wheeled vehicle includes a main brake line; a brake valve configured to input a target brake pressure into the main brake line, the brake vale configured to be actuated via a brake pedal; a plurality of wheel brake lines branching off from the brake valve, each of which leads to an actuating unit of a wheel brake; and a valve assembly of an ABS control system. The valve assembly includes an inlet valve arranged between the main brake line and one of the wheel brake lines, and an outlet valve arranged between the relevant wheel brake line and an unpressurized return line. The inlet valve and the outlet valve are pressure-controlled 2/2-way switching valves with correspondingly large switching cross sections, and the inlet valve and the outlet valve are each assigned at least one pilot valve designed as a solenoid switching valve.

Example hydraulic brake actuators and related methods are disclosed herein. An example hydraulic brake actuator includes a rotary valve disposed in a bore of a housing. The rotary valve includes a shaft rotatably disposed within a sleeve. The sleeve and the shaft have ports that align at certain rotational positions to create a flow path between the bore and an inner chamber of the shaft. The example hydraulic brake actuator also includes a pump coupled to the shaft to increase and decrease a pressure within the inner chamber of the shaft.

A system may be configured for controlling an auto vehicle hold (AVH) for a vehicle, which is configured for implementing an AVH function by improving a brake hydraulic circuit, wherein an economic system for controlling an AVH for a vehicle, in which a pair of AVH valves for implementing an AVH function is additionally formed in a hydraulic brake circuit of an active hydraulic brake (AHB), so that the implementation of the AVH function may be continuously maintained even in a state where an economical parking brake (EPB) is not mounted.

An electronically slip-controllable braking system including an actuatable master brake cylinder, to which at least one wheel brake, associated with a wheel of a front axle and at least one wheel brake, associated with a wheel of a rear axle of a vehicle, are connected. An electronically activatable first actuator system sets and regulates brake pressures different from one another in the wheel brakes as a function of the particular present slip conditions. An electronically activatable second actuator system effectuates the setting and regulating of a uniform brake pressure at the wheel brakes and a third actuator system limits the brake pressure generated by the second actuator system at the wheel brakes associated with the wheels of the rear axle. The third actuator system controls a second pressure medium connection between the associated wheel brake of the rear axle and a pressure medium storage container.

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 hydraulic pressure unit 1 includes a housing 2 and a valve case 3. The housing 2 includes a base body 6. The base body 6 includes a first side face 7, a second side face 8, and a third side face 9. The first side face 7, the second side face 8, and the third side face 9 are perpendicular to one another. The base body 6 includes an inlet valve hole 10, an outlet valve hole 11, a master cylinder port 12, a wheel cylinder port 13, and a reservoir port 14. The inlet valve hole 10 and the outlet valve hole 11 are open on the first side face 7. The master cylinder port 12 and the wheel cylinder port 13 are provided on the second side face 8. The reservoir port 14 is provided on the third side face 9.

The present invention obtains a brake hydraulic pressure control apparatus that is mounted to a straddle-type vehicle and can improve an anti-vibration property when compared to the related art.

The brake hydraulic pressure control apparatus according to the present invention includes: a base body formed with a channel for a brake fluid; a control board of a hydraulic pressure control mechanism for the brake fluid provided to the channel; a housing accommodating the control board and connected to the base body; and a connector provided to the housing and electrically connected to the control board, and is mounted to the straddle-type vehicle. The brake hydraulic pressure control apparatus includes a holding section that holds a cable connected to the connector.

A hydraulic pressure generation motor abnormality detection device may detect abnormality of a hydraulic pressure generation motor configured to drive a pump to generate a hydraulic pressure corresponding to an input displacement of a brake pedal of a vehicle, and includes a memory in which one or more instructions are stored and a processor configured to execute the one or more instructions, wherein the processor executes the one or more instructions to input input data to an artificial neural network model configured to receive the input data and output an estimation value of an output variable related to an output of the hydraulic pressure generation motor, obtain the estimation value of the output variable, and detect whether the hydraulic pressure generation motor is abnormal by using a difference between the estimation value of the output variable and an actual measurement value of the output variable.

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 control method for a wired braking system includes, when estimating that the current forward stroke of the main piston cannot satisfy the braking request, executing the current forward stroke until the stroke of the main piston reaches a first threshold, and then cutting off the communication between the master brake cylinder and each of the sub-brake cylinders; retracting the main piston until the master brake cylinder communicates with the reservoir, allowing brake fluid from the reservoir to replenish the master brake cylinder; advancing the main piston again and re-establishing communication between the master brake cylinder and each of the sub-brake cylinders to further increase the brake fluid pressure in each of the sub-brake cylinders; and estimating again whether the current forward stroke can satisfy the braking request.