Aircraft Ground Support Unit Energy Capacity Assessment
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Solution Overview
Problem
Existing aircraft ground support units (GSUs) face challenges in accurately determining their energy capacity to provide services, leading to potential service interruptions and increased operational costs due to inefficient energy management, especially with the trend towards battery-based GSUs powered by renewable energy.
Innovation Solution
The GSU is equipped with a rechargeable energy storage unit (RESU) and a control unit that identifies the aircraft type and airline, accesses a database for service parameters, measures instantaneous energy levels, and compares them to determine if the RESU can deliver the required energy for the service, generating an output signal indicating capacity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If GSU operators rely on experience-based estimation for energy capacity, then operational simplicity is maintained, but service reliability deteriorates due to inaccurate energy assessment leading to service interruptions
Solution Approach 1:
The GSU system performs self-assessment of its energy capacity through automated monitoring of RESU charge levels and comparison with database energy requirements. The control unit autonomously determines whether the GSU can complete the servicing operation without external intervention, eliminating reliance on operator experience while maintaining operational simplicity.
Solution Approach 2:
The system continuously monitors the instantaneous charge level of the RESU and compares it with the energy budget estimate from the database. This feedback mechanism provides real-time information about energy sufficiency, enabling reliable service delivery by automatically detecting when energy capacity is inadequate before service interruption occurs.
2Reliability
If GSU fleet size is increased to reduce service interruptions, then service reliability improves, but operational costs and fleet management complexity increase
Solution Approach 1:
The system performs preliminary assessment of energy capacity before servicing operations begin. By comparing the instantaneous charge level with the required energy budget in advance, the GSU can determine suitability for the operation, preventing service interruptions and reducing the need for oversized fleets to cover for unreliable units.
Solution Approach 2:
The system dynamically evaluates the charge level parameter of the RESU and compares it against service-specific energy requirements. This parameter-based assessment enables precise matching of GSU capability to service demand, optimizing fleet utilization by deploying only appropriately charged units rather than maintaining excess capacity.
3Reliability
If RESU charge level monitoring and energy budget comparison systems are implemented, then energy delivery reliability improves, but device complexity and initial costs increase
Solution Approach 1:
The control unit performs multiple functions: it monitors RESU charge levels, accesses the database of energy requirements, compares instantaneous state with budget estimates, and generates output signals indicating energy sufficiency. This multi-functional approach consolidates complexity into a single control system rather than requiring separate dedicated components for each function.
Solution Approach 2:
The database acts as an intermediary between the RESU charge level monitoring and the service delivery decision-making. It stores pre-calculated energy budget estimates for different servicing scenarios, enabling the control unit to make reliable energy sufficiency determinations without complex real-time calculations, thus reducing control system complexity.
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 system ensures reliable and efficient energy delivery without external power, optimizing GSU fleet management and reducing recharging workload, thereby minimizing service interruptions and costs.
Implementation Method 1
an energy sensor configured for measuring an instantaneous charge level of the RESU
Data Source
Figure 1~2
Figure 3(A)~3(E)
Figure 4(a)~4(f)
AI summary
The invention relates to an aircraft ground support unit (1) (GSU) for supplying a specific service according to a specific set of service parameters to an aircraft (2) on the ground and consuming a specific service energy for supplying the specific service as a whole in a given available service duration, the GSU comprising: a rechargeable energy storage unit (3) (RESU) which, when fully charged, is configured for autonomously delivering the specific service energy required for supplying the specific service in the given available service duration, an energy sensor (4) configured for measuring an instantaneous state of energy parameters of the RESU, a control unit (5) configured for, • identifying the aircraft (2), preferably including an aircraft type and an airline, • identifying in the database the specific set of service parameters of the specific service to the thus identified aircraft, • establishing a specific service energy budget estimate corresponding to the specific set of service parameters in various ways, • determining an instantaneous charge level of the RESU based on the instantaneous state of the energy variables, • comparing the specific service energy budget estimate with the instantaneous charge level of the RESU, and for • generating an output signal representative of a capacity of the RESU to deliver the specific service energy budget estimate as a function of the instantaneous charge level of the RESU.