Hydraulic Block Layout for Brake Pressure Pulse Damping
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Solution Overview
Problem
Existing hydraulic blocks for vehicle braking systems face challenges in effectively damping pressure oscillations and sudden changes caused by hydraulic pumps and solenoid valves, leading to inefficient brake fluid management in slip control systems.
Innovation Solution
The hydraulic block incorporates offset receptacles for a pressure-change damper and throttle, which are connected to the hydraulic pump's delivery side, allowing for improved damping of pressure changes and increased volume for enhanced damping effectiveness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the receptacles for the hydraulic pump, pressure-change damper, and throttle are arranged in a conventional aligned manner, then the structural complexity is reduced, but the damping effectiveness is insufficient due to limited volume
Solution Approach 1:
The patent applies dimensionality change by arranging the receptacles in an offset configuration rather than a conventional aligned manner. The receptacle for the pressure-change damper is offset relative to the receptacles for the hydraulic pump and throttle, allowing the dampener to extend into the space above the pump receptacle. This three-dimensional spatial arrangement increases the damping volume without proportionally increasing the overall block size, thereby improving damping effectiveness while controlling structural complexity.
2Reliability
If the volume of the pressure-change damper is increased to improve damping effect, then the damping effectiveness is improved, but the hydraulic block occupies more space
Solution Approach 1:
The patent applies the nesting principle by positioning the pressure-change damper receptacle offset from the other receptacles, allowing the damper to utilize the vertical space above the hydraulic pump receptacle. The damper is effectively nested within the overall hydraulic block footprint, using otherwise underutilized three-dimensional space. This enables a larger damper volume for improved damping effect without proportionally increasing the hydraulic block's external dimensions.
3Volume of stationary object
If the receptacles are arranged to extend past or intersect one another, then the damping volume is maximized within the block, but the manufacturing precision requirements increase
Solution Approach 1:
The patent applies local quality by creating a specialized offset region for the pressure-change damper receptacle that is distinct from the conventional aligned arrangement of other receptacles. This localized structural variation allows the damper to access additional volume while the rest of the hydraulic block maintains a standard configuration. The offset receptacle design concentrates the complexity in a specific area, making the manufacturing precision requirements more manageable compared to a completely redesigned block structure.
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 enhances the damping effect, improving the management of brake fluid pressure oscillations and sudden changes, thereby optimizing the performance of slip control systems in vehicle braking systems.
Implementation Method 1
The pressure-change damper dampens pressure changes in the brake fluid on the delivery side of the hydraulic pump; in particular, the pressure-change damper is intended for damping pressure pulses caused by an oscillating conveyance of brake fluid by means of the hydraulic pump and for damping sudden pressure changes caused by switching solenoid valves of the slip control system
Data Source
AI summary
Receptacles for a pressure-change damper and for a throttle are provided, at an offset to each other and at an offset to a receptacle for a hydraulic pump, in opposite sides of a hydraulic block for a hydraulic assembly of a traction control system of a hydraulic vehicle braking system, whereby a greater volume of the pressure-change damper and thus better damping are possible.