Brake Assembly Interlocking for Controlled Segment Deactivation
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Solution Overview
Problem
Existing brake arrangements lack a mechanism to prevent simultaneous deactivation of all braking system segments due to incorrect operation, which can lead to unsafe conditions, particularly during towing operations.
Innovation Solution
A brake arrangement with segment-specific drag switch devices and a central unit that ensures each segment's deactivation requires an external electrical voltage, preventing simultaneous deactivation unless explicitly enabled, and includes 3-position switches to ensure interlocking operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If segment-specific drag switch devices are provided for deactivating braking devices in each braking system segment, then ease of operation is improved, but the risk of simultaneous deactivation of all braking devices due to incorrect operation increases
Solution Approach 1:
A central control unit is introduced as an intermediary between the drag switch devices and the braking devices. This control unit receives signals from the drag switches and processes them according to predefined logic, preventing direct and potentially erroneous simultaneous deactivation of all brakes while maintaining operational ease.
Solution Approach 2:
The control unit implements feedback mechanisms to monitor the state of all drag switch devices and the braking system. This feedback enables the system to detect when all switches are activated and prevent complete deactivation, providing real-time monitoring and corrective action to maintain safety.
2Adaptability or versatility
If all braking devices can be deactivated simultaneously for towing operations, then adaptability is improved, but the risk of unintended deactivation increases
Solution Approach 1:
The control unit is pre-programmed with logic to handle towing operations. When specific conditions are met (such as activation of all drag switches), the control unit automatically executes the appropriate deactivation sequence, allowing towing operations without requiring manual intervention that could lead to errors.
Solution Approach 2:
The system continuously monitors the operational state and provides feedback to determine when towing mode should be activated. This feedback mechanism ensures that complete deactivation occurs only when intentionally required, preventing unintended simultaneous deactivation while maintaining adaptability for towing.
3Ease of operation
If voltage sources of multiple braking system segments are connected to the main shutdown line, then ease of operation is improved, but the risk of conflicting voltage signals and unintended deactivation increases
Solution Approach 1:
The control unit serves as an intermediary that receives voltage signals from multiple segment voltage sources and processes them according to a unified logic. This mediation prevents conflicting voltage signals from directly interacting and causing unintended deactivation, while maintaining the ease of operation benefits of multiple voltage sources.
Data Source
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AI summary
The invention relates, inter alia, to a brake arrangement (BA) with at least two brake system segments (BSS1, BSS2, BSS3) and a main electrical shut-off line (HAL). Each brake system segment (BSS1, BSS2, BSS3) comprises a segment-specific electrical segment shut-off line (SAL) connected to at least one segment-specific brake device (BE) that can be deactivated electrically by applying voltage, a segment-specific electrical voltage source (SP), and a segment-specific trailing switch device (SSE) that can assume a normal operating position (NS), a shut-off position (AS), and a support position (US).