Shovel Fuel Consumption Tracking by Work Mode
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Solution Overview
Problem
Existing shovel management systems cannot accurately record fuel consumption as it varies significantly with engine rotational speed, leading to imbalanced load conditions during excavation work, making it impossible to determine accurate fuel consumption without considering the engine rotational speed.
Innovation Solution
A shovel management apparatus that includes a processor and memory to obtain and aggregate fuel consumption information by work mode, using sensors to monitor engine rotational speed, operating conditions, and work posture, allowing for precise calculation of fuel consumption based on work mode and load factors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If fuel consumption is recorded by work type only, then the recording system is simple, but the measurement precision is insufficient because fuel consumption varies with engine rotational speed
Solution Approach 1:
The patent segments fuel consumption recording by dividing it into multiple dimensions: work type (excavation/loading) and work mode (engine rotational speed categories). This segmentation allows precise measurement of fuel consumption under different operating conditions without requiring a completely complex new system, as it builds upon the existing work type classification framework.
Solution Approach 2:
The patent adds another dimension (work mode based on engine rotational speed) to the existing one-dimensional classification (work type). This dimensional expansion transforms the recording system from simple work type categorization to a two-dimensional classification system that captures both work type and engine speed characteristics, thereby improving measurement precision while maintaining systematic organization.
2Reliability
If work mode is not considered, then the recording system is simple, but fuel efficiency cannot be accurately evaluated due to imbalanced load conditions
Solution Approach 1:
The patent implements feedback mechanisms by providing notification outputs that alert operators when the selected work mode does not match the actual load conditions. The system monitors the relationship between work mode selections and actual operating parameters, then feeds back information to guide operators toward more appropriate mode selections, thereby improving fuel efficiency evaluation reliability.
Solution Approach 2:
The patent utilizes parameter changes in engine rotational speed as the basis for defining different work modes. By categorizing operation into multiple work modes based on engine speed ranges, the system can accurately reflect the varying fuel consumption characteristics under different load conditions, enabling reliable fuel efficiency evaluation without excessive system complexity.
Data Source
AI summary
A shovel management apparatus configured to manage a shovel including a lower traveling body, an upper turning body mounted on the lower traveling body via a turning mechanism, and an excavation attachment attached to the upper turning body includes a memory and a processor coupled to the memory. The processor is configured to obtain fuel consumption information regarding the fuel consumption of the shovel and work mode information indicating the work mode of the shovel set by an operator and aggregate the fuel consumption information according to the work mode.