Vehicle Power Supply Housing for Simultaneous Source Cutoff
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Solution Overview
Problem
Existing electric powertrains in electric or hybrid vehicles face challenges in safely managing power sources, particularly in scenarios like accidents or malfunctions, where simultaneous cutoff of power from multiple sources is critical for safety but not efficiently managed by existing systems.
Innovation Solution
The proposed electric power supply device integrates a metal housing containing both power sources, a control module, and shared safety means. This configuration allows for simultaneous interruption of both power sources, enhancing safety by centralizing and sharing safety mechanisms within a fluid-tight, earth-connected housing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate safety means are provided for each power source, then each power source can be independently controlled, but the response time for simultaneous cutoff is delayed and safety efficacy is reduced
Solution Approach 1:
The patent merges the safety means into a single shared mechanism that can simultaneously control both power sources. The control module receives a single cutoff signal and activates both relays at the same time, eliminating the time delay associated with separate control systems and ensuring simultaneous disconnection of both power sources for enhanced safety.
Solution Approach 2:
The shared safety means and control module serve multiple functions: they can independently control each power source through separate relays, or simultaneously control both power sources through a single cutoff signal. This multi-functionality allows the system to adapt to different safety scenarios while maintaining rapid response capability.
2Reliability
If safety means are distributed across multiple power sources, then each source has dedicated protection, but the overall system complexity increases and intervention responsiveness decreases
Solution Approach 1:
The patent combines multiple safety control functions into a single integrated control module that manages both power sources. Instead of having separate safety systems for each power source, the control module uses shared safety means with individual relays for each source, reducing overall system complexity while maintaining comprehensive safety protection.
Solution Approach 2:
While the control module is unified, the safety means are segmented into individual relays for each power source. This segmentation allows independent control of each power source when needed, while the unified control module manages them collectively, balancing simplicity with targeted protection.
3Adaptability or versatility
If separate control systems are used for each power source, then independent operation is enabled, but simultaneous cutoff during emergencies is not efficiently achieved
Solution Approach 1:
The control module is designed with multi-functionality: it can independently control each power source through separate relay commands for normal operation, and simultaneously control both power sources through a single emergency cutoff signal. This dual capability ensures both operational flexibility and emergency response effectiveness.
Solution Approach 2:
The control module merges the control functions for both power sources into a single unified system. This allows the system to maintain independent operation capability through separate relay control while enabling simultaneous cutoff through shared safety means, resolving the contradiction between adaptability and emergency response capability.
Data Source
AI summary
An electrical power supply for a hybrid or electric motor vehicle includes a first power source to supply a voltage network of the vehicle, a second power source to supply the voltage network of the vehicle and/or to recharge the first power source, and a control module to control a safety structure of the first power source and of the second power source. The electrical power supply includes a metal casing containing the first power source, the second power source, the control module and the safety structure. The safety structure is common to the two power sources.