Hydraulic Block Venting Path Optimization
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Solution Overview
Problem
Existing hydraulic blocks for slip control systems in vehicle brake systems face challenges in efficiently venting hydraulic accumulators and connecting them to outlet valves, leading to complex and lengthy venting paths, which can complicate the hydraulic assembly and installation.
Innovation Solution
The hydraulic block design includes receptacles for hydraulic accumulators arranged opposite the valve side, allowing for easier venting and a short coupling to outlet valves, with accumulators potentially covering solenoid valve receptacles, and a unique arrangement of inlet and outlet valve receptacles swapped relative to the connection side, along with hydraulic pumps positioned near a transverse side and driven by an electric motor on that side.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If hydraulic accumulators are arranged on the valve side of the hydraulic block, then the venting path becomes shorter and easier to implement, but the solenoid valves cannot be properly mounted in their receptacles
Solution Approach 1:
The patent moves the hydraulic accumulators from the valve side to the opposite side of the hydraulic block, changing the spatial arrangement from a two-dimensional surface layout to a three-dimensional configuration that utilizes the block's depth. This dimensional change allows both accumulators and solenoid valves to coexist without spatial conflict, with accumulators positioned to enable short venting paths through the block interior while solenoid valves remain accessible on the valve side.
2Ease of manufacture
If the hydraulic block is designed with traditional Cartesian bore arrangement, then manufacturing is simplified, but the venting path from accumulators to outlet valves becomes lengthy and complex
Solution Approach 1:
The patent transitions from a static Cartesian bore arrangement to a dynamic, optimized bore configuration that adapts to the functional requirements of the hydraulic circuit. The bore arrangement is designed to create direct, short venting paths from the accumulators to the outlet valves, eliminating unnecessary intermediate connections and reducing the overall venting path length while remaining manufacturable.
3Volume of moving object
If accumulators are positioned to cover solenoid valve receptacles, then compactness is improved, but the solenoid valves become inaccessible for mounting and maintenance
Solution Approach 1:
The patent segments the hydraulic block into distinct functional zones: the valve side for solenoid valve mounting and operation, the opposite side for accumulator placement, and the interior for optimized fluid pathways. This segmentation allows each component type to be positioned optimally for its specific function while maintaining overall system compactness through efficient spatial utilization.
Data Source
AI summary
A hydraulic block of a slip control system of a hydraulic vehicle brake system includes receptacles for the hydraulic accumulator and receptacles for outlet valves arranged on opposite sides of each other in the hydraulic block. The sides of the hydraulic block, which comprise the receptacles for the outlet valves and the hydraulic accumulators, are connected to one another by bores perpendicular thereto.