Shovel Diagnostic Data Collection Under Constant Engine Conditions
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Solution Overview
Problem
Existing shovel diagnostic techniques require operator-driven movements to collect diagnostic data, which can lead to unreliable data acquisition due to hydraulic actuator movements.
Innovation Solution
A shovel system with a lower traveling body, upper turning body, engine, hydraulic pump, and processing circuitry that collects diagnostic data under constant driving conditions, utilizing communication networks for data transmission to a management apparatus for reliable data acquisition.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If operator-driven movements are used to collect diagnostic data, then the shovel can perform specified movements, but the diagnostic data becomes unreliable due to hydraulic actuator movements
Solution Approach 1:
The shovel system automatically collects diagnostic data by detecting its own driving conditions through sensors and processing circuitry. The system monitors engine operating parameters (rotation speed, load, temperature) and hydraulic pump conditions without requiring operator intervention or manual movement commands, enabling self-diagnosis during normal operation.
Solution Approach 2:
The patent replaces manual operator-driven mechanical movements with an automated sensing and detection system. Instead of relying on operators to perform specified movements, the system uses sensors to detect driving conditions and processing circuitry to automatically determine when constant driving conditions are met, eliminating the need for manual operation during data collection.
2Loss of information
If diagnostic data is collected during operator-driven movements, then data can be acquired, but the complexity of coordination between operator actions and data collection increases
Solution Approach 1:
The processing circuitry continuously monitors engine driving conditions through sensors and provides feedback to determine when constant driving conditions are achieved. The system uses this feedback to automatically trigger data collection at appropriate moments, eliminating the need for complex external coordination while ensuring reliable diagnostic data acquisition during stable operating phases.
3Reliability
If the shovel operates under constant driving conditions, then diagnostic data can be collected reliably, but the operational flexibility and responsiveness to operator commands may be reduced
Solution Approach 1:
The system dynamically monitors engine driving conditions and automatically identifies periods when constant driving conditions are achieved during normal operation. Rather than imposing a fixed operational mode, the system adapts to the shovel's natural operation cycle, collecting diagnostic data during stable phases while maintaining full operational flexibility during transitional periods. This allows reliable data collection without restricting the shovel's adaptability to different working conditions.
Data Source
AI summary
A shovel includes a lower traveling body, an upper turning body turnably mounted on the lower traveling body, an engine mounted on the upper turning body, a hydraulic pump mounted on the upper turning body and configured to be driven by the engine, and processing circuitry configured to collect diagnostic data of the shovel, in response to detecting that the engine is driven under a constant driving condition.