Vehicle Braking Redundancy Switching for Failsafe Control
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Solution Overview
Problem
Existing vehicle braking systems lack efficient redundancy and failsafe mechanisms, particularly in the event of component failures, which can compromise safety and compliance with safety standards.
Innovation Solution
A vehicle braking system with primary and redundant features, including ECUs, supply lines, control valves, and transducers, that dynamically switch between primary and redundant components based on predetermined conditions and failure detection, ensuring continued functionality and safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If redundant components are added to the braking system, then reliability is improved, but device complexity increases
Solution Approach 1:
The braking system is divided into primary and redundant feature segments, each capable of independent operation. The control system segments the control logic into condition-based decision pathways that selectively activate primary or redundant features based on real-time system state assessment.
Solution Approach 2:
The system dynamically switches between primary and redundant features based on real-time condition monitoring. The braking control system continuously assesses system conditions and dynamically reconfigures which feature is active, transitioning from static redundancy to dynamic feature selection.
2Reliability
If conditional switching between primary and redundant features is implemented, then reliability is improved, but control system complexity increases
Solution Approach 1:
The system performs preliminary assessment of system conditions before switching between features. Predetermined conditions are established in advance, and the control system evaluates these conditions proactively to determine optimal feature selection, preventing reactive complexity.
Solution Approach 2:
The braking control system continuously monitors system state and provides feedback to the feature selection logic. This closed-loop feedback mechanism enables intelligent switching decisions based on real-time conditions, reducing the need for complex manual control logic.
Data Source
AI summary
A vehicle braking system which includes at least one primary feature and at least one redundant feature and a braking control system which is operable to determine whether a predetermined condition, which is not indicative of failure of the primary feature or the redundant feature, is met, wherein if the predetermined condition is met, the braking control system causes the primary feature to be operable and if the predetermined condition is not met, the braking control system causes the redundant feature to be operable.