Handlebar Brake Pressure Layout for Flexible ABS Valve Mounting
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Solution Overview
Problem
The existing hydraulic pressure control devices for straddle-type vehicles have a low degree of freedom in mounting due to the orientation of the inlet and outlet valve mounting holes, which limits their installation flexibility on the vehicle.
Innovation Solution
The hydraulic pressure control device is designed with the inlet and outlet valve mounting holes positioned on a second surface opposite to the reservoir tank opening, allowing the device to be mounted on a handlebar with improved spatial orientation, thus enhancing the degree of freedom in mounting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the inlet valve mounting hole and outlet valve mounting hole are formed to extend in a substantially horizontal direction, then the valve mounting is simplified, but the degree of freedom of mounting on the handlebar is reduced
Solution Approach 1:
The patent changes the orientation of the inlet valve mounting hole and outlet valve mounting hole from horizontal extension to vertical extension along the piston mounting hole direction. This dimensional reorientation allows the hydraulic pressure control device to be mounted in different spatial configurations on the handlebar, improving mounting adaptability while maintaining valve integration simplicity
2Device complexity
If the housing storing coils and control board is disposed to face the surface with inlet and outlet valve mounting holes, then the internal layout is simplified, but the mounting position options on the handlebar are limited
Solution Approach 1:
The patent reorients the inlet and outlet valve mounting holes to extend vertically along the piston mounting hole direction. This allows the housing to be positioned at the end of the piston mounting hole rather than facing the valve mounting surface, enabling more flexible spatial arrangement and mounting position options while maintaining manageable internal layout complexity
3Volume of moving object
If the inlet valve and outlet valve are integrated into the base body with horizontal mounting holes, then the device structure is compact, but the mounting adaptability to various vehicle layouts is reduced
Solution Approach 1:
The patent changes the valve mounting hole orientation from horizontal to vertical, extending along the piston mounting hole direction. This vertical orientation maintains the compact integrated structure while providing different spatial characteristics that improve compatibility with various vehicle mounting layouts and object arrangements
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This configuration allows for a more flexible and efficient mounting of the hydraulic pressure control device on a straddle-type vehicle, improving its installation compatibility with the vehicle's layout.
Implementation Method 1
a brake fluid released from a wheel cylinder during pressure decrease in the anti-lock brake control is stored in an accumulator
Implementation Method 2
an inlet valve opens and closes a part of an internal flow path through which a brake fluid flowing from the piston mounting hole to the wheel cylinder passes
Implementation Method 3
an outlet valve opens and closes a part of the internal flow path through which a brake fluid flowing from the wheel cylinder to an accumulator passes
Data Source
Figure 1~2
Figure 3
Figure 4~5
AI summary
To obtain a hydraulic pressure control device with which the degree of freedom of mounting on a straddle-type vehicle can be improved as compared with the related art. The hydraulic pressure control device according to the present invention is used in a brake system capable of executing anti-lock brake control and mounted to a handlebar of a straddle-type vehicle. The hydraulic pressure control device includes: a master cylinder-integrated base body where a reservoir tank for brake fluid storage connected to a master cylinder and an internal flow path through which a brake fluid flows are formed; and inlet and outlet valves provided in the base body and opening and closing the internal flow path. An inlet valve mounting hole storing the inlet valve and an outlet valve mounting hole storing the outlet valve are open on a second surface in a case where a surface of the base body where an opening portion of the reservoir tank is formed is a first surface and a surface of the base body opposite to the first surface is the second surface.