Motorcycle ABS Hydraulic Unit Layout for External Force Protection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional straddle-type vehicles with hydraulic pressure control units are prone to external forces during travel, such as from flipped stones or ground contact, due to their exposed mounting position on the outer side of the front fork when viewed from the front.
Innovation Solution
The hydraulic pressure control unit is configured to store brake fluid in an accumulator during anti-lock brake control and discharge it pumplessly, with the base body held by the front fork, the circuit board located behind the fork, and coils erected from the rear surface, reducing the lateral width and allowing the unit to be positioned between the fork and wheel, thus minimizing external force application.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of repair
If the hydraulic pressure control unit is mounted on the outer side of the front fork, then the unit is easily accessible for maintenance, but it is exposed to external forces such as flipped stones and ground contact
Solution Approach 1:
The patent repositions the hydraulic pressure control unit from the conventional outer side mounting to the inner side of the front fork, between the fork and the front wheel. This spatial reconfiguration in a different dimensional arrangement protects the unit from external forces while maintaining accessibility through the wheel arch area.
2Device complexity
If the hydraulic pressure control unit is mounted on the outer side of the front fork, then the mounting structure is simple, but the lateral width of the vehicle increases
Solution Approach 1:
The hydraulic pressure control unit is nested within the space between the front fork and the front wheel, utilizing the existing structural void. This nesting approach eliminates the need for additional external mounting structures while reducing the overall lateral width of the vehicle.
3Ease of manufacture
If the hydraulic pressure control unit is mounted on the outer side of the front fork, then the unit is easily installed, but it has poor aesthetic appearance
Solution Approach 1:
By moving the unit to the inner side mounting position and orienting the coils toward the rear, the patent achieves a cleaner front profile that improves aesthetic appearance while maintaining installation simplicity through standardized mounting interfaces.
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 reduces the lateral width of the hydraulic pressure control unit, minimizing external force application and improving the aesthetic appearance of the vehicle by positioning the unit closer to the wheel, thereby enhancing protection 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
The hydraulic pressure control unit is configured to store brake fluid that is released from a wheel cylinder during depressurization in the anti-lock brake control in an accumulator and to discharge the brake fluid in the accumulator to outside of the accumulator in a pumpless manner
Data Source
Figure 1
Figure 2
Figure 3
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; 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).