Isolated Electronic Backbone for Aerial Device Power
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Solution Overview
Problem
Aerial devices used by utility workers for accessing overhead electric power lines face inefficiencies due to continuous operation of large diesel or gas engines for hydraulic power systems, leading to excessive energy losses and maintenance needs, especially when only a small percentage of horsepower is necessary for functions.
Innovation Solution
An isolated electronic backbone architecture that provides electrical power on demand through a system of electrical components connected by an isolated electrical line, with each electrical motor only powered when an actuator is in use, reducing unnecessary motor running and energy losses associated with hydraulic systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If a single large hydraulic pump provides continuous power to all actuators, then all actuators can be powered, but excessive energy is consumed and the engine must run continuously even when only small horsepower is needed
Solution Approach 1:
The patent divides the power system into multiple independent electrical motors, each dedicated to a specific actuator. This segmentation allows each motor to operate independently based on the actual needs of its associated actuator, eliminating the need for a single large pump to run continuously. Each motor can be sized appropriately for its specific load requirements, reducing overall energy consumption while maintaining power availability.
2Power
If hydraulic power systems use large diesel or gas engines, then sufficient power is available for all functions, but the engines must operate continuously or nearly continuously during static operations
Solution Approach 1:
The patent implements a dynamic power distribution system where electrical motors are activated only when their associated actuators are being utilized. This dynamic approach allows the power system to adapt to actual operational needs, turning motors on and off as required rather than maintaining continuous operation. The system transitions from static continuous engine operation to dynamic demand-based motor operation, reducing unnecessary running time.
3Reliability
If hydraulic power systems are used to maintain insulation of the utility platform, then insulation is maintained, but the system is limited in functions and very inefficient
Solution Approach 1:
The patent replaces the hydraulic mechanical power system with an electrical power system. This substitution enables the utility platform to support a broader range of functions including electrical tools, lighting, heating, and communication equipment that cannot be powered by hydraulic systems. The electrical system maintains insulation requirements while dramatically increasing functional versatility and efficiency.
4Power
If a single large hydraulic pump is used, then all actuators can be powered, but significant energy losses occur in valves, manifolds, and lines
Solution Approach 1:
The patent extracts and eliminates the intermediate hydraulic components (valves, manifolds, and lines) that cause energy losses by replacing the centralized hydraulic pump system with distributed electrical motors. Each motor is positioned adjacent to its associated actuator, eliminating the need for extensive hydraulic piping and valve assemblies. This direct coupling removes the sources of pressure drop and energy loss inherent in hydraulic line systems.
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 enhances efficiency by eliminating excessive motor running and reducing energy losses, while also minimizing weight and maintenance needs, ensuring safe operation near electrified sources by isolating the power system from the utility platform and grounded base.
Implementation Method 1
The protected electrical line is configured to carry electrical current between the power source, the first electrical motor, and the second electrical motor
Implementation Method 2
The electronic backbone architecture is a system of electrical components connected by an electrical line, all of which is electrically isolated from the aerial device
Data Source
AI summary
An electronic backbone architecture is configured to provide electrical power to an aerial device. The isolated electronic backbone architecture comprises: a power source for generating electrical power, a first actuator, a first electrical motor for powering the first actuator, a second actuator, a second electrical motor for powering the second actuator, and a protected electrical line. The first actuator is disposed adjacent to the first electrical motor. The second actuator is disposed adjacent to the second electrical motor. The protected electrical line is configured to carry electrical current between the power source, the first electrical motor, and the second electrical motor.