Rotatable Hydraulic Block Layout for Left- and Right-Hand Drive Brakes
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Solution Overview
Problem
Existing hydraulic blocks for vehicle braking systems lack adaptability to different vehicle orientations and spatial constraints within the engine compartment, leading to potential collisions with internal components during accidents.
Innovation Solution
A cuboidal hydraulic block design with Cartesian boreholes and adjustable installation positions, allowing rotation by 180° to accommodate various vehicle orientations and spatial conditions, ensuring the electric motor's position is optimized to avoid collisions with other components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the hydraulic block is designed with a fixed installation position, then the structure is simple and manufacturing is easy, but the adaptability to different vehicle orientations and spatial constraints is poor
Solution Approach 1:
The hydraulic block is designed with asymmetric features including a non-centrally positioned master brake cylinder borehole and an offset electric motor mounting position. This asymmetric configuration enables the block to accommodate different vehicle orientations (left-hand and right-hand drive) while maintaining functional integrity, resolving the contradiction between adaptability and structural simplicity.
Solution Approach 2:
The hydraulic block incorporates multiple functional elements including the master brake cylinder borehole, power cylinder borehole, electric motor mounting position, and brake fluid reservoir connection positioned to serve multiple purposes. This multi-functional design allows a single component to fulfill various roles, enhancing adaptability without proportionally increasing overall structural complexity.
2Adaptability or versatility
If the electric motor is positioned away from the center of the hydraulic block, then spatial compatibility within the engine compartment is improved, but the manufacturing precision requirements increase
Solution Approach 1:
The hydraulic block features localized precision requirements concentrated at specific critical interfaces. The master brake cylinder borehole and power cylinder borehole are positioned with high precision relative to each other, while the electric motor mounting position incorporates tolerance compensation features. This localized quality approach maintains manufacturing feasibility while achieving the required spatial compatibility.
3Adaptability or versatility
If the master brake cylinder borehole is positioned off-center, then adaptability to different vehicle configurations is improved, but the structural symmetry and manufacturing ease are reduced
Solution Approach 1:
The hydraulic block design incorporates preliminary positioning features and reference surfaces that guide the off-center positioning of the master brake cylinder borehole during assembly. These pre-established reference elements simplify the manufacturing process by providing clear alignment targets, reducing the complexity that would otherwise result from asymmetric borehole positioning.
Data Source
AI summary
A cuboidal hydraulic block of a hydraulic power unit of a hydraulic power vehicle braking system for use in a left-hand drive vehicle or a right-hand drive vehicle to be attachable, rotatably by 180° about a horizontal axis, at a splashboard of a motor vehicle. An electric motor of a power brake pressure generator is thus selectively situated on a right or a left side of the hydraulic block.