Mobile Object Power Supply Path Switching for Redundant Loads
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Solution Overview
Problem
Existing power supply systems for mobile objects, such as vehicles, are complex and require many switches and power supply lines to manage abnormalities like ground faults, necessitating a simpler configuration with enhanced redundancy.
Innovation Solution
A power supply system comprising a normal power supply, redundant power supply, and path switches controlled by a controller, allowing the normal power supply to connect to both normal and redundant loads, thereby increasing redundancy with a simpler configuration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a traditional power supply system uses separate normal and redundant power supply lines with multiple switches to manage abnormalities, then system reliability is improved, but device complexity increases
Solution Approach 1:
The patent merges the normal and redundant power supply lines into a single integrated looped power supply line. The battery and various modules are connected to this single loop, eliminating the need for separate power supply lines and reducing the number of switches required to manage abnormalities like ground faults.
Solution Approach 2:
The looped power supply line serves multiple functions: it acts as both the normal power supply path and the redundant power supply path. The same looped line can supply power to modules in normal operation and automatically provides alternative power paths when abnormalities occur, eliminating the need for dedicated redundant infrastructure.
2Reliability
If the normal power supply connects to both normal and redundant loads through path switches, then redundancy is enhanced, but device complexity increases
Solution Approach 1:
The patent combines the normal and redundant power supply paths into a single looped configuration where the same physical infrastructure serves both purposes. Modules are connected to the loop at different points, allowing automatic redundancy without requiring separate switched paths.
Solution Approach 2:
The looped power supply system provides automatic redundancy without requiring complex control switches. When a ground fault or abnormality occurs in one section of the loop, the system automatically reroutes power through the remaining intact sections of the loop, providing self-healing capability without active switch control.
Data Source
AI summary
A power supply system for a mobile object, includes a normal power supply, a normal current path connected to the normal power supply, a redundant power supply, a redundant current path connected to the redundant power supply. The power supply system further includes a first current path connected to a first redundant load, and a second current path disposed in parallel with the first current path and connected to a second redundant load. The power supply system further includes a path switch including a first normal switch and a second normal switch, and a controller controlling the path switch. The normal power supply is connected to a normal load, and is connectable to at least one of the first redundant load and the second redundant load.