Work Vehicle Resource Replenishment Timing Calculation
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Solution Overview
Problem
Existing resource replenishment systems for work vehicles struggle to accurately estimate and manage fuel or battery power consumption, especially in large work sites with varying conditions, leading to inefficient fuel replenishment timing and amounts.
Innovation Solution
A resource replenishment system that includes a consumption amount recording section, work plan management, estimated consumption amount calculation, and replenishment management sections to calculate and adjust resource replenishment timing based on actual and estimated consumption rates, considering work site conditions and vehicle performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If comparison between standard fuel use amount and current fuel remaining amount is used to determine replenishment timing, then the system is simple to operate, but the estimation precision of fuel consumption is insufficient for large work sites with varying conditions
Solution Approach 1:
The system performs preliminary estimation of fuel consumption before starting work by calculating expected consumption based on work site area, ground surface conditions, weather conditions, and vehicle specifications. This allows operators to plan fuel replenishment in advance rather than relying on simple comparison methods, thereby improving estimation precision without significantly increasing operational complexity.
Solution Approach 2:
The system continuously monitors actual fuel consumption during work operations and compares it with estimated consumption. This feedback mechanism allows the system to adjust and refine consumption estimates based on real-world performance, improving precision while maintaining a manageable system structure through automated calculations.
2Productivity
If simple comparison method is used for fuel replenishment timing, then the device complexity is low, but the productivity is reduced due to insufficient accuracy in large work sites
Solution Approach 1:
The system calculates expected fuel consumption before work begins based on work site characteristics, ground surface conditions, and weather forecasts. This preliminary estimation enables better productivity planning by identifying optimal replenishment timing in advance, avoiding work interruptions, and ensuring continuous operation in large work sites.
Solution Approach 2:
The system automatically performs consumption calculations and replenishment timing determination without requiring complex manual interventions. The work vehicle itself generates and processes the necessary data, reducing the need for external monitoring systems and maintaining operational efficiency while improving productivity through accurate, automated fuel management.
3Adaptability or versatility
If flexible fuel replenishment according to circumstances is implemented, then the adaptability to varying work site conditions is improved, but the device complexity increases
Solution Approach 1:
The system adjusts fuel consumption estimates based on local conditions specific to each work site, including ground surface conditions (flat, sloped, rough terrain) and local weather conditions. By tailoring the estimation to local characteristics rather than using a uniform approach, the system achieves high adaptability while keeping the overall system structure relatively simple through modular condition-based calculations.
Solution Approach 2:
The system dynamically changes consumption calculation parameters based on varying conditions such as ground surface type, slope, weather conditions, and vehicle load. These parameter adjustments allow flexible adaptation to different work scenarios without requiring a completely different system architecture, maintaining manageable complexity while achieving versatility.
Data Source
AI summary
Resource consumption of a work vehicle in a specified work site is estimated more appropriately and a resource replenishment timing is calculated appropriately. A resource replenishing system for a work vehicle that effects work-implementing travel in a work site while consuming an amount of resource supplied from an energy source pack mounted on its vehicle body includes a consumption amount recording section 62 for recording an actual unit consumption amount of the resource together with work contents as work history, a work plan management section 52 for managing work plan information containing the work contents, an estimated consumption amount calculation section 101 for calculating an estimated unit consumption amount of the resource consumed per unit work amount of the work vehicle implemented based on the work plan information, with reference to the work history, and a replenishment management section 60 for calculating a replenishment timing for replenishing the resource to the energy source pack, based on the estimated unit consumption amount.