Vehicle Power Circuit Zoning for Failure Detection and Safe Control
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Solution Overview
Problem
Existing vehicle systems lack efficient methods to accurately detect failures in power circuits and safely control vehicle operations based on these failures, which can lead to abnormal power consumption and compromised safety or functionality.
Innovation Solution
The vehicle is divided into zones, with each zone controlled by a zone controller, monitoring voltage drops, and a main controller determines circuit failures by comparing actual voltage drops against predefined criteria, enabling safe driving, stopping, or parking based on the failure zone.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If power circuits are monitored without zone division, then the monitoring system is simple, but failure detection precision is insufficient
Solution Approach 1:
The power circuit monitoring system is divided into multiple zones, with each zone having its own monitoring capabilities. This segmentation allows for more precise failure detection in specific areas without requiring complete system overhaul, thereby improving measurement precision while managing complexity through modular design
2Reliability
If voltage drop monitoring is implemented without zone division, then the monitoring process is simple, but reliability of power supply is compromised
Solution Approach 1:
The power supply system is segmented into zones with dedicated monitoring, allowing reliability improvements in critical areas without requiring complex system-wide changes. Each zone can be monitored independently, enhancing overall reliability while maintaining manageable complexity
Solution Approach 2:
The system implements feedback mechanisms where voltage drop monitoring results are used to trigger appropriate responses. This feedback loop enhances power supply reliability by enabling timely detection and response to failures, while the automated nature of feedback reduces the complexity of manual monitoring processes
3Reliability
If safe driving control is not implemented based on failure zones, then the control system is simple, but safety of vehicle operation is compromised
Solution Approach 1:
The vehicle control system is segmented into zones corresponding to different functional areas. This allows safety controls to be targeted specifically at affected zones rather than requiring complete system shutdown or complex global control changes, improving safety while managing control system complexity
Solution Approach 2:
The control system dynamically adjusts its response based on the detected failure zone and severity. This dynamic approach allows the system to maintain optimal safety controls for each situation without requiring overly complex predetermined control logic for all possible failure scenarios
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Facilitates easy detection of power circuit failures and safe vehicle control, ensuring continued operation, safety, or parking based on the failure's impact on driving, braking, or convenience functions.
Implementation Method 1
monitoring a voltage drop in each of the zones, determining whether a power circuit in each of the zones fails based on a difference between the voltage drop in each of the zones and the failure determination criterion value
Data Source
AI summary
A vehicle and a control method thereof capable of easily detecting a failure of a power circuit of a vehicle and safely controlling the vehicle depending on a failure detection result, includes dividing power loads of a vehicle into a plurality of zones and obtaining a failure determination criterion value of each of the zones, monitoring a voltage drop in each of the zones, determining whether a power circuit in each of the zones fails based on a difference between the voltage drop in each of the zones and the failure determination criterion value, and performing preset safe driving control of the vehicle depending on a zone determined as the failure among the plurality of zones.