Operation Input Apparatus Actuator Vibration Feedback

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Solution Overview

Problem

Existing operation input apparatuses cannot forcibly provide a tactile stimulus to the operator, limiting the sense of touch feedback during operation inputs.

Innovation Solution

Incorporating an actuator with a vibration generating source and a detecting element system that outputs signals corresponding to the displacement of the operating unit, allowing for the transmission of tactile feedback to the operator.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If an operation input apparatus uses only detecting elements to sense operating unit displacement, then the device complexity is reduced, but the operator cannot receive tactile stimulus feedback

Engineering Contradiction:
Improvetactile feedback capabilityVSAvoidstructure complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The actuator generates mechanical vibrations that are transmitted through the operating unit to the operator's finger, providing tactile feedback. The vibration amount is controlled based on the operating unit's displacement state, enabling the operator to feel different tactile responses during operation.

Inventive Principle:
Principle #18Mechanical vibration

Solution Approach 2:

The system uses detecting elements to continuously monitor the operating unit's displacement and feeds this information back to the actuator. The actuator then adjusts its vibration output based on this feedback, creating a closed-loop tactile feedback system that responds to the operator's input actions.

Inventive Principle:
Principle #23Feedback

2Ease of operation

If the actuator continuously provides tactile stimulus, then the operator receives constant feedback, but energy consumption increases

Engineering Contradiction:
Improvefeedback continuityVSAvoidactuator energy consumption
Core Design Contradiction:
Ease of operationVSUse of energy by moving object

Solution Approach 1:

Instead of continuous operation, the actuator provides tactile feedback in periodic pulses synchronized with the operating unit's displacement. The actuator activates during specific phases of the operating unit's movement and remains inactive during other phases, reducing overall energy consumption while maintaining effective feedback.

Inventive Principle:
Principle #19Periodic action

Solution Approach 2:

The actuator adjusts its vibration parameters (amplitude, frequency, duration) based on the operating unit's displacement state. When the operating unit is in certain positions or moving at certain speeds, the actuator modifies its output accordingly, providing appropriate feedback intensity without unnecessary energy consumption during low-need periods.

Inventive Principle:
Principle #35Parameter changes

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

Enables the operator to receive tactile stimuli, enhancing the sense of touch feedback and improving the accuracy of operation input detection.

Implementation Method 1

the inductance of the coils is varied depending on the distance between the coils and the operating unit as the operating unit is tilted by an operation inputting action. By evaluating the change in inductance, the amount of tilt of the operating unit is detected

Methodology Applied
Scientific EffectInductance variation: Electromagnetic Induction

Implementation Method 2

an actuator configured to move the operating unit via the actuator output shaft

Methodology Applied
Scientific EffectVibration: Vibration

Data Source

PatentUS8847581B2Operation input apparatus and operating apparatus
Publication Date: 2014.09.30 MITSUMI ELECTRIC CO LTD
  • US8847581B2 patent drawing
  • US8847581B2 patent drawing
  • US8847581B2 patent drawing

AI summary

An operation input apparatus includes an operating unit that is displaced by the action of an operation input; an actuator output shaft that is displaced in the same direction as the operating unit by the action of the operation input; an actuator that moves the operating unit via the actuator output shaft; and a detecting element that outputs a signal corresponding to an amount of displacement of the operating unit.