Rotary Damping Control for Consistent Adjustable Tactile Feedback
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Solution Overview
Problem
Existing rotation control systems in smart devices suffer from inconsistent tactile feedback due to environmental factors affecting mechanical damping, limiting flexibility and user experience.
Innovation Solution
A method that identifies the relative rotation angle between components and adjusts damping correspondingly within multiple preset angle ranges using a brushless motor and closed-loop control, simulating diverse tactile feedback.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If mechanical damping is introduced between rotating components, then tactile feedback is improved, but damping resistance becomes inconsistent due to environmental factors
Solution Approach 1:
The patent replaces the mechanical damping structure with an electromagnetic damping system using a brushless motor. The motor generates electromagnetic torque to provide damping force, eliminating the reliance on mechanical friction that varies with environmental factors like temperature. This substitution maintains consistent tactile feedback across different operating conditions.
Solution Approach 2:
The patent dynamically adjusts the damping parameter by controlling the electromagnetic torque output of the brushless motor based on the rotation angle. Different angle ranges correspond to different damping forces, allowing the system to provide varied tactile feedback while maintaining consistency through electronic control rather than mechanical adjustment.
2Ease of operation
If mechanical damping with preset resistance is used, then tactile feedback is provided, but flexibility to adjust feedback according to user preferences is limited
Solution Approach 1:
The patent transforms the static, fixed damping resistance of mechanical systems into a dynamic, adjustable electromagnetic damping force. The brushless motor can real-time adjust the damping torque according to the rotation angle and user preferences, enabling flexible customization of tactile feedback characteristics without physical reconfiguration.
Solution Approach 2:
The system enables dynamic adjustment of damping parameters through electronic control of the brushless motor. By varying the electromagnetic torque output based on rotation angle ranges, the system can adaptively change tactile feedback characteristics to match different user preferences and application scenarios.
3Ease of operation
If electromagnetic damping is used to simulate diverse tactile feedbacks, then user experience is enhanced, but device complexity increases
Solution Approach 1:
The patent leverages the multi-functionality of the brushless motor, which serves both as the actuator for rotation control and as the source of electromagnetic damping. This eliminates the need for separate mechanical damping components, reducing overall system complexity while achieving enhanced tactile feedback capabilities.
Solution Approach 2:
The patent merges the rotation drive function and damping provision function into a single brushless motor system. The motor simultaneously provides the torque needed for rotation and the electromagnetic damping for tactile feedback, consolidating multiple functions into one component and simplifying the overall device architecture.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enhances user experience by providing consistent and customizable tactile feedback, overcoming the monotony and inconsistency issues of mechanical damping.
Implementation Method 1
a rotation control method that is configured to use in a rotation control device designed to drive a first component and a second component to rotate relative to each other
Implementation Method 2
As the rotation angle varies within a specific range, the damping between the first component and the second component is controlled to change correspondingly
Data Source
AI summary
A rotation control method, device, and computer storage medium are disclosed. The method is applicable to a rotation control device designed to drive a first component and a second component to rotate relative to each other. The method encompasses the following steps: identifying the relative rotation angle between the first component and the second component; and determining the angle range for the identified rotation angle. Notably, the first component and the second component are operable to rotate relative to each other within multiple preset angle ranges. As the rotation angle varies within a specific range, the damping between the first component and the second component is controlled to change correspondingly, thereby simulating diverse usage feels for the user.