Brake Pressure Control Unit Layout for Compact Motor and Pipe Access
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Solution Overview
Problem
Conventional hydraulic pressure control units for straddle-type vehicle brake systems face challenges with increased motor size in the rotation axis direction and degraded workability due to closely positioned master and wheel cylinder ports, which are exacerbated by space constraints in straddle-type vehicles.
Innovation Solution
The hydraulic pressure control unit design features the inlet and outlet valves, and motor on one surface, with master and wheel cylinder ports on separate opposing surfaces, reducing motor size and improving pipe connection workability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the inlet valve, outlet valve, and motor are separately provided on two mutually opposing surfaces of the base body, then the motor size in the rotation axis direction is increased, but the workability of connecting fluid pipes is improved
Solution Approach 1:
The patent combines the inlet valve, outlet valve, and motor into a single integrated valve assembly that is provided on one surface of the base body. This merging of components resolves the contradiction by allowing the fluid pipe connections (inlet and outlet valves) to be made at the same location, improving workability, while the integrated design prevents excessive enlargement of the motor in the rotation axis direction.
2Length of moving object
If the master cylinder port and wheel cylinder port are collectively provided on another surface of the base body, then the motor size is reduced, but the workability of connecting fluid pipes is degraded
Solution Approach 1:
The patent combines the master cylinder port and wheel cylinder port with the inlet and outlet valves on the same surface of the base body. This allows fluid pipes to be connected in close proximity to each other, significantly improving workability during assembly and maintenance operations.
3Length of moving object
If the inlet valve and outlet valve are provided on opposing surfaces, then the motor size is reduced, but the device complexity is increased
Solution Approach 1:
The patent merges the inlet valve and outlet valve into a single integrated valve assembly located on one surface of the base body. This integration simplifies the overall structure by reducing the number of separate components and their interconnections, thereby decreasing device complexity while maintaining the reduced motor size benefit.
Data Source
AI summary
A hydraulic pressure control unit and a straddle-type vehicle brake system capable of simultaneously reducing size of a motor for the hydraulic pressure control unit in a rotation axis direction and improving workability of connecting fluid pipes to a master cylinder port and a wheel cylinder port are obtained.An inlet valve and an outlet valve are provided in valve holes provided on a first surface of a base body. A motor is provided in an upright manner in a motor hole provided on the first surface. One of the master cylinder port and the wheel cylinder port is provided on a second surface as a surface opposing the first surface. The other of the master cylinder port and the wheel cylinder port is provided on a third surface constituting one end of the base body in a direction that is parallel with a reference surface including a center axis of the motor hole and is orthogonal to the center axis.