Motorcycle Brake Hydraulic Unit Layout for Impact Protection
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Solution Overview
Problem
Conventional hydraulic pressure control units for straddle-type vehicles are prone to external forces when mounted, such as from flipped stones or falls, due to their placement on the outer side of the front fork, leading to potential damage and aesthetic issues.
Innovation Solution
A hydraulic pressure control unit with a base body dimensioned to fit between the front fork and front wheel, featuring a housing design that reduces projection on the outer side, allowing the unit to be positioned closer to the fork and reducing exposure to external forces, while maintaining anti-lock brake control functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the hydraulic pressure control unit is mounted on the outer side of the front fork, then the unit can be easily installed and accessed, but it becomes vulnerable to external forces such as flipped stones and ground impacts
Solution Approach 1:
The housing is designed with asymmetric dimensions where the width direction dimension is greater than the base body width, and the center of the base body is offset toward the first side surface. This asymmetric configuration allows the unit to be positioned with minimal projection on the outer side of the front fork, reducing exposure to external forces while maintaining ease of installation through the front fork's holding structure
2Object-affected harmful factors
If the hydraulic pressure control unit is positioned closer to the front wheel, then exposure to external forces is reduced, but the unit's width must be minimized to fit in the available space
Solution Approach 1:
The housing dimensions are optimized locally: the width direction dimension is made greater than the base body width to accommodate internal components, while the overall projection on the outer side is minimized by offsetting the base body center toward the first side surface. This allows the unit to fit in the limited space between the front fork and front wheel while protecting against external forces
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
The solution effectively minimizes the unit's exposure to external forces and improves the aesthetic appearance of the vehicle by reducing the visible extent of the hydraulic pressure control unit, enhancing its durability and appearance.
Implementation Method 1
a first coil as a drive source of the inlet valve; a second coil as a drive source of the outlet valve
Implementation Method 2
store a brake fluid that is released from a wheel cylinder during depressurization in the anti-lock brake control in an accumulator
Data Source
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AI summary
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; and a housing (40) that is connected to the base body (10) and accommodates a circuit board. A dimension in a width direction (Y) of the housing (40) is greater than a dimension in the width direction (Y) of the base body (10). In a state where the hydraulic pressure control unit (1) is seen in a connection direction (X), a center in the width direction (Y) of the base body (10) is located on a first side surface (45) side from a center in the width direction (Y) of the housing (40) .