Dynamic Current Limit Management for Vehicle Steering Systems
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Solution Overview
Problem
Electrical conduits in multifunctional systems, such as vehicle steering wheel systems, face inefficiencies due to overdesigning to accommodate simultaneous use of all components, leading to unnecessary size and cost, and potential performance sacrifices when smaller conduits are used.
Innovation Solution
A method involving a conductive component with a predetermined limit, where a processor determines low-priority and high-priority systems, measuring operating parameters to selectively deactivate low-priority systems when limits are exceeded, ensuring efficient current distribution and maintaining system performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the electrical conduit is designed to handle simultaneous and constant use of both AFS and heated steering wheel systems, then the system can support all component systems to the greatest extent possible, but the conduit becomes too large and expensive for confined spaces
Solution Approach 1:
The patent implements dynamic current limit management where the conductive component's current capacity is adjusted in real-time based on which systems are actively being used. The processor monitors system usage and dynamically allocates current capacity between AFS and heated steering wheel systems, allowing the conduit to be smaller than maximum simultaneous capacity while still supporting all systems when needed
Solution Approach 2:
The system changes the operational parameters of the conductive component by adjusting current limits based on active system usage. When only one system is active, the full current capacity is allocated to that system. When both systems are active, the current is shared according to priority levels and usage patterns, effectively changing the electrical parameters to match actual demand
2Volume of moving object
If a smaller electrical conduit is used, then the system is more practical for confined spaces and reduces cost, but system performance is sacrificed when both systems are used simultaneously
Solution Approach 1:
The patent uses dynamic current limit management to allow a smaller conduit to support systems that would otherwise require a larger conduit for simultaneous operation. The processor dynamically adjusts current allocation based on which systems are active, ensuring that even with a smaller conduit, both systems can be supported when needed by intelligently managing current distribution
Solution Approach 2:
The system performs preliminary assessment of system usage patterns and current demands before allocating current capacity. The processor evaluates which systems are active and predicts current requirements, then proactively adjusts current limits to prevent performance degradation before it occurs
3Reliability
If the system assumes both AFS and heated steering wheel systems will always be active, then all component systems can be supported, but the conduit is overdesigned and too expensive for actual usage patterns
Solution Approach 1:
The system changes the electrical parameters of the conductive component based on actual usage patterns rather than maximum theoretical capacity. By monitoring which systems are actively being used and adjusting current limits accordingly, the system avoids the inefficiency of overdesigning for simultaneous constant use of both systems, which rarely occurs in practice
Solution Approach 2:
The system uses its own operational data to optimize its design. The processor monitors which systems are actively being used and automatically adjusts current allocation, allowing the system to self-optimize based on actual usage patterns rather than requiring conservative overdesign
Data Source
AI summary
Exemplary methods are disclosed, which may include providing a conductive component configured to conduct a current to at least two electrical systems or elements. Methods may further include determining one of the electrical elements as a low-priority system and a second one of the electrical elements as a high-priority system, measuring or estimating a current associated with the at least two electrical systems to establish the current exceeds a predetermined parameter, and deactivating the low-priority system in response to at least the determination of the current exceeding the predetermined parameter.