Modular Hydraulic Brake Actuation for Shared Multi-Mode Operation
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Solution Overview
Problem
Conventional hydraulic brake actuation assemblies require different designs for various operation modes, leading to high production costs due to the lack of common parts, and existing solutions do not efficiently allow for both mechanical and electro-hydraulic operations with shared components.
Innovation Solution
The hydraulic brake actuation assembly is designed with a modular structure comprising two preassembled subassemblies, where the first subassembly is standardized for all variants, and the second subassembly is adaptable for different operation modes, including purely mechanical, electro-hydraulic, and mechanical-electrohydraulic operations, with a pressure reducing valve system that allows for flexible actuation and leakage management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If different designs are used for various operation modes, then operational versatility is improved, but production cost increases due to lack of common parts
Solution Approach 1:
The brake actuation assembly is divided into two distinct subassemblies: a first subassembly containing spools and actuation pistons, and a second subassembly containing additional actuation pistons with contact surfaces. This segmentation allows the first subassembly to be standardized across all operation modes while the second subassembly varies to provide different operational capabilities (purely mechanical, purely electro-hydraulic, or mechanical-electrohydraulic), thereby reducing production costs through standardization of common parts while maintaining versatility.
Solution Approach 2:
The first subassembly is designed as a universal component that can be used across all variants of the brake actuation assembly regardless of the specific operation mode. The standardized spools and actuation pistons in the first subassembly can function in purely mechanical operations, purely electro-hydraulic operations, or mechanical-electrohydraulic operations, eliminating the need to manufacture different complex components for each operation mode and significantly reducing production costs.
2Ease of operation
If mechanical operation is implemented, then ease of operation is improved, but device complexity increases due to additional mechanical components
Solution Approach 1:
The brake actuation assembly is divided into two distinct subassemblies: a first subassembly containing spools and actuation pistons, and a second subassembly containing additional actuation pistons with contact surfaces. This segmentation allows the first subassembly to be standardized across all operation modes while the second subassembly varies to provide different operational capabilities (purely mechanical, purely electro-hydraulic, or mechanical-electrohydraulic), thereby reducing production costs through standardization of common parts while maintaining versatility.
Solution Approach 2:
The first subassembly is designed as a universal component that can be used across all variants of the brake actuation assembly regardless of the specific operation mode. The standardized spools and actuation pistons in the first subassembly can function in purely mechanical operations, purely electro-hydraulic operations, or mechanical-electrohydraulic operations, eliminating the need to manufacture different complex components for each operation mode and significantly reducing production costs.
3Measurement precision
If electro-hydraulic operation with control valves is implemented, then control precision is improved, but device complexity increases due to additional control components
Solution Approach 1:
The brake actuation assembly is divided into two distinct subassemblies: a first subassembly containing spools and actuation pistons, and a second subassembly containing additional actuation pistons with contact surfaces. This segmentation allows the first subassembly to be standardized across all operation modes while the second subassembly varies to provide different operational capabilities (purely mechanical, purely electro-hydraulic, or mechanical-electrohydraulic), thereby reducing production costs through standardization of common parts while maintaining versatility.
Solution Approach 2:
The first subassembly is designed as a universal component that can be used across all variants of the brake actuation assembly regardless of the specific operation mode. The standardized spools and actuation pistons in the first subassembly can function in purely mechanical operations, purely electro-hydraulic operations, or mechanical-electrohydraulic operations, eliminating the need to manufacture different complex components for each operation mode and significantly reducing production costs.
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 design enables cost-effective mass production of the standardized first subassembly while allowing for flexible adaptation to different operation modes, improving control precision and safety by decoupling control pressure from the spools, thus reducing production costs and enhancing operational reliability.
Implementation Method 1
at least one first spring is located between the first spool and the first actuation piston along the first axis
Implementation Method 2
at least one second spring is located between the second spool and the second actuation piston along the second axis
Implementation Method 3
hydraulic brake actuation assembly comprises a first and a second spool which are moveable along a first and a second axis respectively
Data Source
AI summary
A hydraulic brake actuation assembly with a first and a second spool is disclosed. The hydraulic brake actuation assembly includes a first and a second subassembly which are configured to be mounted to each other in a pre-assembled manner. The first subassembly includes the first spool and a first actuation piston which are moveable along a first axis respectively. At least one first spring is located between the first spool and the first actuation piston along the first axis. The first subassembly includes the second spool and a second actuation piston which are moveable along a second axis respectively. At least one second spring is located between the second spool and the second actuation piston along the second axis. The first and the second axis are parallel to each other. The second subassembly includes a third and a fourth actuation piston. The third actuation piston is moveable along the first axis. It has a third contact surface which is able to contact a first contact surface of the first actuation piston. The fourth actuation piston is moveable along the second axis. It has a fourth contact surface which is able to contact a second contact surface of the second actuation piston.