Automatic Charging Robot Control for Cable Catch Recovery
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Solution Overview
Problem
Existing automatic charging systems face issues where the arm mechanism can be stopped by the charging cable getting caught, leading to operational interruptions.
Innovation Solution
Incorporating a dynamic sensor to detect overload, a camera to capture and analyze images for direction adjustment, and a cable winder to manage the length of the charging cable, allowing the control device to control the arm mechanism to prevent and resolve cable catching.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If the arm mechanism operates automatically to grasp and move the charging connector, then charging automation is improved, but the operation may be stopped when the charging cable is caught
Solution Approach 1:
The cable winder performs preliminary action by paying out the charging cable before the arm mechanism operates and winding it up after operation. This preliminary preparation and cleanup of the cable path prevents the cable from getting caught during arm mechanism movement, ensuring continuous operation while maintaining automation.
2Adaptability or versatility
If the charging cable is made longer to provide sufficient length for charging operations, then operational flexibility is improved, but the cable is more likely to get caught
Solution Approach 1:
The cable winder pays out the charging cable to the necessary length before the arm mechanism performs its operation, ensuring sufficient cable length for the charging task. After the arm mechanism completes its operation, the cable winder winds up the cable to prevent it from getting caught. This preliminary preparation and subsequent cleanup resolves the contradiction between having enough cable length and preventing cable catching.
Data Source
AI summary
An automatic charging robot includes: an arm mechanism configured to grip a charging connector connected to a charging device via a charging cable; a control device configured to automatically perform control of an operation of the arm mechanism; and a dynamic sensor provided in the arm mechanism and configured to detect an overload due to catching of the charging cable. The control device is configured to control the operation of the arm mechanism to: return to a previous one or two operations when the overload has been detected by the dynamic sensor; and return to the operation when the overload has been detected after the overload is released.