Refuse Front End Loader Control for Obstacle-Aware Automation
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Solution Overview
Problem
Existing refuse vehicles face challenges in optimizing operator efficiency due to manual operation of front end loaders, which require monitoring capacity and navigating obstacles, leading to a need for increased automation.
Innovation Solution
An automatic control system for refuse vehicles that includes sensors, a control module, and a mode select switch to control components like lift arms and compaction mechanisms, enabling smooth and obstacle-avoiding operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If manual operation of front end loader is used, then operator can control the vehicle, but operator efficiency is reduced due to monitoring capacity and navigating obstacles
Solution Approach 1:
The control system is segmented into multiple independent components: mode select switch for operation mode selection, control mechanism for executing control instructions, plurality of sensors for detecting vehicle characteristics, and control module for processing signals. This segmentation allows the automated system to achieve high automation levels while managing complexity through modular design.
Solution Approach 2:
The control module serves multiple functions: receiving control instructions from the control mechanism, selectively controlling components of the vehicle, and processing signals from multiple sensors. This multi-functionality reduces the need for separate dedicated control units, thereby managing system complexity while maintaining high automation capability.
2Productivity
If manual operation is used, then the operator can monitor and control the vehicle, but operator efficiency and productivity are reduced
Solution Approach 1:
The vehicle system performs self-monitoring and self-control through the integrated control system. Sensors automatically detect vehicle characteristics, the control module processes this information, and the control mechanism executes appropriate actions without requiring continuous manual monitoring, thereby significantly improving operator efficiency and productivity.
Solution Approach 2:
The system implements feedback loops where sensors continuously monitor vehicle characteristics and feed this information to the control module, which adjusts control instructions accordingly. This automatic feedback mechanism eliminates the need for manual monitoring while maintaining optimal vehicle operation, thus improving productivity without increasing operational complexity for the operator.
3Extent of automation
If automated control system is implemented, then operator efficiency is enhanced, but the system requires multiple sensors and control components
Solution Approach 1:
Multiple control functions are merged into a single integrated control module that processes signals from various sensors and generates control instructions for multiple vehicle components. This merging approach enables high automation levels while reducing the number of separate control components compared to having dedicated control units for each function.
Data Source
AI summary
An automatic control system for a refuse vehicle includes a mode select switch disposed within the vehicle that generates a mode select signal based on input from an operator of the vehicle, a control mechanism disposed within the vehicle that operates in response to the mode select signal, and a plurality of sensors adapted to sense a plurality of characteristics of the vehicle and adapted to communicate the plurality of sensed characteristics. The system further includes a control module that receives control instructions from the control mechanism and selectively controls at least one component of a plurality of components of the vehicle based on the mode select signal, at least one of the plurality of sensed characteristics, and the control instructions.