Hydraulic Pressure Controller Cover Extraction for Cost Reduction
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Solution Overview
Problem
Conventional straddle-type vehicle brake systems require different component shapes and manufacturing processes for hydraulic pressure control, leading to increased costs due to the need for either a motor-driven pump or a hydraulic pressure detector, depending on the release method of brake fluid in the wheel cylinder.
Innovation Solution
A hydraulic pressure controller with a single system of hydraulic circuit that includes a primary and secondary channel, where the brake fluid is released without increasing hydraulic pressure, featuring a base body with internal channels, coils for valve operation, and a hydraulic pressure detector positioned similarly to the motor, allowing for commonization of components and reduced costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a motor-driven pump is used to release brake fluid in the wheel cylinder, then the brake fluid can be released effectively, but a motor has to be attached to the base body of the hydraulic pressure controller, increasing device complexity and cost
Solution Approach 1:
The invention extracts the motor from the base body of the hydraulic pressure controller and places it on the cover. This separation allows the base body to maintain a simpler structure while still achieving effective brake fluid release through the pump mechanism, thereby reducing device complexity without compromising reliability
Solution Approach 2:
The cover acts as an intermediary component that houses the motor and transmits its rotational force to the pump through a drive mechanism. This intermediary structure enables the motor to drive the pump effectively while keeping the motor separate from the base body, resolving the contradiction between effective brake fluid release and reduced device complexity
2Reliability
If a hydraulic pressure detector is provided in the base body to recognize rear wheel lift-off, then the brake fluid can be released without increasing hydraulic pressure, but the base body must be provided with additional detection components, increasing manufacturing complexity
Solution Approach 1:
The hydraulic pressure detector is extracted from the base body and integrated into the cover structure. This allows the base body to maintain its original simple cylindrical shape and manufacturing process, while the cover is designed to accommodate the detector and its associated components, thus reducing manufacturing complexity while maintaining detection reliability
Solution Approach 2:
The detector is positioned in the cover at a location that corresponds to a different spatial dimension relative to the base body. This dimensional repositioning allows the detector to function effectively for rear wheel lift-off detection without requiring modifications to the base body's manufacturing process, as the cover can be designed independently to house the detector
3Reliability
If different component shapes and manufacturing processes are used for each specification, then the hydraulic pressure control can be optimized for each case, but the part cost increases due to lack of standardization
Solution Approach 1:
The cover is designed as a universal component that can accommodate different specifications through modular design elements. The motor, pump, and detector can be positioned and configured within the cover to suit different application requirements, while the base body remains a standardized simple cylindrical shape. This multi-functionality approach allows optimization for different specifications without requiring different base body manufacturing processes, thereby reducing part cost through standardization
Solution Approach 2:
The hydraulic pressure controller is segmented into two distinct parts: a standardized base body and a configurable cover. The base body maintains a simple, standardized shape that can be manufactured using the same process for all specifications, while the cover is designed to accommodate different motor, pump, and detector configurations. This segmentation allows optimization for different specifications in the cover while maintaining cost efficiency through standardization of the base body
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 enables cost reduction by standardizing component shapes and manufacturing processes, while maintaining effective hydraulic pressure control and preventing rear wheel lift-off without increasing the hydraulic pressure.
Implementation Method 1
a first coil as a drive source of a first hydraulic pressure regulation valve that opens/closes the first channel; a second coil as a drive source of a second hydraulic pressure regulation valve that opens/closes the second channel
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
A hydraulic pressure controller, cost of which can be cut, a straddle-type vehicle brake system, and a straddle-type vehicle are obtained. A hydraulic pressure controller (110) is used for the straddle-type vehicle brake system which includes a single system of a hydraulic circuit capable of controlling a hydraulic pressure and in which brake fluid in a wheel cylinder is released to a master cylinder without increasing the hydraulic pressure. A first coil (112B), a second coil (113B), and a hydraulic pressure detector (116) are erected on the same surface of a base body (111) . An axis of the hydraulic pressure detector (116) is offset from a reference plane including an axis of the first coil (112B) and an axis of the second coil (113B), and is located between a first plane that is orthogonal to the reference plane and includes the axis of the first coil (112B) and a second plane that is orthogonal to the reference plane and includes the axis of the second coil (113B).