Trailer Solar Power for Cab HVAC and Roof Deicing
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Solution Overview
Problem
Current technologies for truck and trailer vehicles require engine idling or external power connections to maintain cab comfort and clear snow/ice from roofs, which is inefficient and poses safety risks, especially during extended stationary periods.
Innovation Solution
An auxiliary power system utilizing solar energy collection and storage, combined with a DC-to-AC inverter, inflatable bladders, and flexible solar panels, allows for independent power supply to HVAC, lighting, and deicing without engine operation, enabling comfortable cab conditions and snow/ice removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If engine idling is used to power HVAC and comfort loads, then cab temperature control is maintained, but fuel consumption increases and emissions are generated
Solution Approach 1:
The system uses solar panels mounted on the vehicle to generate electrical power independently, storing energy in batteries during the day and using it at night to power HVAC and comfort loads, eliminating the need for engine idling and achieving self-sufficient energy operation
Solution Approach 2:
The patent replaces the mechanical engine-driven power system with an electrical system comprising solar panels, battery storage, and electric motors for HVAC operation, thereby eliminating the need for combustion engine running and reducing fuel consumption
2Object-affected harmful factors
If manual snow and ice removal is performed, then roof clearance is achieved, but driver safety risks and time loss increase
Solution Approach 1:
The patent replaces manual mechanical snow removal with an automated electrical heating system that uses electrically-heated cables installed on the roof surface to melt snow and ice automatically, eliminating driver exposure to hazardous conditions
Solution Approach 2:
The heating system is activated automatically when snow or ice is detected on the roof, clearing the surface before it can accumulate to dangerous levels or affect vehicle operation, thereby preventing safety issues rather than responding to them
3Ease of operation
If engine idling is used for extended periods, then power for HVAC and comfort loads is provided, but operational efficiency decreases
Solution Approach 1:
The vehicle operates autonomously using solar energy collection and battery storage to power all electrical loads including HVAC, lighting, and entertainment systems during stationary periods, allowing the engine to remain off and maintaining full operational comfort while improving fuel efficiency
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
This solution provides efficient, engine-independent power for comfort loads and deicing, reducing fuel consumption and safety hazards, while being adaptable for retrofitting existing vehicles.
Implementation Method 1
Solar panels produce DC, and electrical power is best stored as DC in batteries or capacitors
Implementation Method 2
electrical power is best stored as DC in batteries or capacitors
Implementation Method 3
the removal of snow and ice can be accomplished with an inflatable bladder on the top of the trailer and/or tractor, to break up and remove snow and ice
Data Source
AI summary
An integrated truck and trailer power system comprises auxiliary power generation and storage devices mounted on a trailer, such as an array of solar panels mounted on the roof of the trailer and a storage battery mounted on the trailer, and switching devices for controlling flow of power there between and to an electrically powered HVAC system of the truck, whereby the truck can be maintained at a comfortable temperature by supply of power stored by the auxiliary power storage device.