Automatic Generator Starting Actuator Fault Logic Circuit
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Solution Overview
Problem
Automatic generator starting systems in recreational vehicles do not effectively prevent exhaust hazards, such as carbon monoxide accumulation, when generators are operated in enclosed spaces or during vehicle stops, leading to potential safety risks.
Innovation Solution
A system incorporating a fault logic circuit that monitors various inputs, including transmission position, wheel rotation, engine operation, ignition status, and exhaust sensors to disable the automatic generator starting actuator when hazardous conditions are detected, requiring manual re-enablement to prevent CO hazards.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If automatic generator starting system is enabled, then convenience and reliability of power supply are improved, but safety risk from exhaust accumulation increases
Solution Approach 1:
The system performs preliminary monitoring of exhaust conditions before allowing automatic generator starting. The fault logic circuit continuously checks exhaust sensor readings and vehicle operation status in advance, disabling the automatic starting function before hazardous conditions can develop, thus preventing CO accumulation while maintaining convenience when safe.
Solution Approach 2:
The system implements feedback control by continuously monitoring exhaust sensor data and vehicle operation parameters, and using this information to dynamically control the automatic starting function. When hazardous conditions are detected, the system provides feedback to disable the automatic starting, creating a closed-loop safety mechanism that prevents CO hazards while preserving convenience during normal operation.
2Object-affected harmful factors
If fault monitoring circuit is added, then safety against exhaust hazards is improved, but device complexity increases
Solution Approach 1:
The fault logic circuit serves multiple functions simultaneously: it monitors exhaust sensor readings, tracks vehicle operation parameters (ignition, transmission, wheels), controls the automatic starting function, and provides user notification. By consolidating these diverse functions into a single multi-functional circuit, the system achieves comprehensive safety without proportionally increasing complexity.
Solution Approach 2:
The system employs self-service principles by utilizing existing vehicle sensors and control circuits for fault monitoring, rather than requiring entirely separate dedicated monitoring hardware. The fault logic circuit leverages available vehicle data (ignition status, transmission position, wheel rotation) and existing exhaust sensors, reducing the need for additional complex components while achieving comprehensive safety monitoring.
Data Source
AI summary
This document discusses, among other things, systems, devices, and methods of disabling an automatic generator starting (AGS) actuator, such as used with a fuel-powered AC power generator providing AC electrical power to a recreational vehicle (RV) or other vehicle. The AGS actuator is disabled in response to a fault condition, such as may be indicative of a risk of hazardous gas, such as carbon monoxide (CO) accumulating near the vehicle, potentially in an enclosed area. After such disabling is performed, the vehicle driver would then have to consciously re-engage the AGS actuator. Factors useful for determining whether the fault condition exist include, among other things, transmission position, wheel rotation, vehicle engine operation status, ignition status, and/or an exhaust gas sensor.