Hydraulic Block Sensor Mounting for Brake Pressure Measurement
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Solution Overview
Problem
Existing hydraulic blocks for slip control systems in vehicle brake systems lack an efficient integration of a brake circuit pressure sensor, which hinders accurate pressure measurement and hydraulic component connectivity.
Innovation Solution
Incorporating a receptacle for a brake circuit pressure sensor outside the traditional rows of solenoid valves, with dedicated connecting lines that communicate with isolating and brake pressure build-up valves, enhancing the hydraulic block's design for pressure measurement and component interconnection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the brake circuit pressure sensor is integrated into the traditional rows of solenoid valves, then the hydraulic block structure remains simple, but the pressure measurement accuracy and component connectivity are compromised
Solution Approach 1:
The brake circuit pressure sensor receptacle is positioned outside the traditional three-row arrangement of solenoid valves, utilizing the fourth spatial dimension (lateral side of the hydraulic block) to resolve the conflict between measurement precision and structural simplicity. This dimensional extension allows accurate pressure sensing without interfering with the established valve layout.
Solution Approach 2:
A dedicated connecting line (bore) is introduced as an intermediary element to link the pressure sensor receptacle with the hydraulic circuit. This intermediary channel enables accurate pressure measurement by providing a direct communication path between the sensor and the brake circuit, while keeping the overall structure organized and manageable.
2Reliability
If the receptacle for the brake circuit pressure sensor is positioned outside the three rows of solenoid valves, then the pressure measurement and hydraulic connectivity are improved, but the hydraulic block design becomes more complex
Solution Approach 1:
The hydraulic block is segmented into distinct functional zones: the traditional three rows for solenoid valves and a separate lateral region for the pressure sensor receptacle. This segmentation isolates the pressure sensing function from the valve control functions, improving reliability by preventing interference while maintaining a systematic and organized design approach.
Solution Approach 2:
The connecting line serving the pressure sensor receptacle is designed to communicate with existing hydraulic circuits (connecting from isolating valve to brake pressure build-up valve), allowing the same hydraulic pathway to serve multiple functions: both valve operation and pressure sensing. This multi-functionality improves reliability without proportionally increasing complexity.
3Adaptability or versatility
If the connecting line for the pressure sensor is arranged through the hydraulic block, then the hydraulic connectivity is enhanced, but the manufacturing complexity increases
Solution Approach 1:
The connecting line for the pressure sensor is pre-planned and integrated into the hydraulic block design from the outset, allowing the bore to be drilled and positioned accurately during the initial manufacturing process. This preliminary action ensures proper alignment and connectivity while avoiding complex post-manufacturing modifications.
Data Source
AI summary
A hydraulic block for a hydraulic assembly of a slip control system for a hydraulic vehicle brake system includes a mount for a brake circuit pressure sensor in a flat side of the hydraulic block. The mount for the brake circuit pressure sensor is configured to measure pressure in at least one brake circuit of the vehicle brake system and communicates with a connecting line through a transverse line and a vertical line. The connecting line connects a mount for a brake pressure build-up valve to a mount for an isolating valve. The hydraulic block further includes a mount for a master brake cylinder pressure sensor and a mount for a brake circuit pressure sensor for each brake circuit.