Synchronous Opening Body Control via Speed Recalculation
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Solution Overview
Problem
Existing opening and closing body control devices fail to ensure that first and second opening and closing bodies reach their target open amounts simultaneously when the speed of one or both changes due to disturbances during movement.
Innovation Solution
Incorporating a target speed calculation unit and a target speed recalculation unit to adjust the target speeds of the motor drive units, allowing the first and second opening and closing bodies to synchronize their movement and reach the target open amounts despite speed changes, with additional units for specific speed adjustments and error handling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the speed of the first or second opening and closing body changes due to disturbance during movement, then the synchronization of reaching target open amounts simultaneously is lost, but the control system complexity increases to maintain synchronization
Solution Approach 1:
The control unit continuously monitors the actual speeds of the first and second opening and closing bodies and compares them with the target speeds. When a speed deviation is detected due to disturbance, the control unit calculates a speed correction amount and adjusts the motor drive units accordingly, creating a closed-loop feedback system that maintains synchronization without requiring overly complex control architecture
Solution Approach 2:
The system dynamically adjusts the target speeds of the motor drive units based on real-time speed deviations. The control unit recalculates corrected target speeds by adding correction amounts to the original target speeds, allowing the system to adapt to changing conditions during operation and maintain synchronization dynamically rather than relying on fixed pre-programmed sequences
2Manufacturing precision
If the control system continuously monitors and adjusts speeds to maintain synchronization, then the precision of reaching target open amounts simultaneously is improved, but the computational load and control complexity increase
Solution Approach 1:
The control unit implements feedback by continuously acquiring actual speeds from speed acquisition units, comparing them with target speeds, and adjusting motor drive units based on the differences. This closed-loop approach ensures precise synchronization while using straightforward computational steps rather than complex algorithms
Solution Approach 2:
The system changes the speed parameters of the motor drive units dynamically based on detected deviations. The control unit calculates correction amounts by comparing actual and target speeds, then adjusts the speed parameters in real-time. This parameter adjustment approach achieves precise control through simple arithmetic operations rather than complex computational models
Data Source
AI summary
An opening and closing body control device includes: a target speed recalculation unit that, when the first opening and closing body and the second opening and closing body are moving, recalculates the respective target speeds of each of the first opening and closing body and the second opening and closing body for reaching the target open amounts at the same time; and a second synchronous control unit that, in a case in which a speed of at least one of the first opening and closing body or the second opening and closing body is different from the target speed calculated by the target speed calculation unit, controls the first motor drive unit and the second motor drive unit so that the first opening and closing body and the second opening and closing body move at the respective target speeds recalculated by the target speed recalculation unit.