High Voltage System Mode Control for Hybrid Vehicle Failures
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Solution Overview
Problem
Existing high voltage devices in hybrid vehicles lack the ability to efficiently operate in different modes, particularly during failures, which can disrupt charging and power distribution, especially in motor sports environments where vehicles need to function both inside and outside the vehicle.
Innovation Solution
A system comprising a battery, DC-DC converter, and electronic processor that determines startup conditions to operate in partial or full system modes, performing shutdowns as needed to manage power distribution and charging via regenerative braking or DC-DC converter, ensuring continued vehicle functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the high voltage device operates in full system mode to provide maximum functionality, then power distribution and charging capabilities are improved, but system reliability deteriorates when failures occur
Solution Approach 1:
The system dynamically switches between full system mode and partial system mode based on operational conditions and failure states. The electronic processor monitors system status and transitions the high voltage device between modes to maintain reliability while preserving functionality. This dynamic adaptation allows the system to optimize between power distribution capability and reliability in real-time.
2Reliability
If the high voltage device operates in partial system mode to improve reliability during failures, then system stability is improved, but power distribution capability deteriorates
Solution Approach 1:
The high voltage device is segmented into critical and non-critical functional components. During partial system mode, non-critical functions are deactivated while critical functions remain operational. This segmentation allows the system to maintain stability and reliability during failures while preserving essential power distribution capabilities. The electronic processor identifies and isolates affected components to maintain partial functionality.
3Object-affected harmful factors
If the system performs full shutdown in response to failures to ensure safety, then system safety is improved, but operational continuity deteriorates
Solution Approach 1:
Instead of performing a complete full shutdown in response to all failures, the system performs a partial shutdown that deactivates only the affected components and functions. This partial action approach maintains safety by isolating failures while preserving operational continuity for unaffected system portions. The electronic processor determines the appropriate scope of shutdown based on failure analysis, avoiding unnecessary complete system cessation.
4Adaptability or versatility
If the high voltage device is designed to operate in multiple modes to improve adaptability, then versatility is improved, but device complexity deteriorates
Solution Approach 1:
The electronic processor is designed with multi-functionality to handle both full system mode and partial system mode operations, as well as full shutdown and partial shutdown control. This universal control architecture manages the complexity of multiple operating modes through a single integrated processing unit that can adapt its control strategy based on system conditions, rather than requiring separate dedicated control systems for each mode.
Data Source
AI summary
A system for controlling high voltage devices. The system includes a battery, a DC-DC converter, and an electronic processor. The electronic processor is configured to, in response to determining a partial startup condition is met, operate the system in a partial system mode and perform a full shutdown of the system in response to a failure requiring a full shutdown. The electronic processor is configured to, in response to determining a full startup condition is met, operate the system in a full system mode and, in response to a failure occurring, determine whether the full shutdown or a partial shutdown is required. The electronic processor is configured to perform the full shutdown of the system in response to determining the full shutdown is required, and, in response to determining the partial shutdown is required, perform the partial shutdown and operate the system in the partial system mode.