Gamepad Control Stick Feedback Force Device
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Solution Overview
Problem
Conventional gamepads with control sticks suffer from poor hand feel due to inadequate feedback force, making it difficult for users to effectively control the stick during gameplay.
Innovation Solution
A control stick feedback force device is introduced, featuring a front friction plate and a rear friction plate with a pressing device that applies a pressing force between them, generating a torque that provides feedback to the control stick, adjustable via a current supply module and adjustment module.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a spring is used to return the control stick to its original position, then the control stick can be simple in structure, but the feedback force provided is insufficient and hand feel is poor
Solution Approach 1:
The patent replaces the simple spring mechanism with a torque output device (motor) that generates electromagnetic torque to drive the friction plate system. This substitution enables precise control of feedback force magnitude and direction, significantly improving hand feel while managing complexity through controlled mechanical interaction
Solution Approach 2:
The patent introduces a friction plate as an intermediary between the torque output device and the control stick. The friction plate transmits torque to the control stick through friction contact, providing smooth and controllable feedback force. This intermediary mechanism enables gentle force transmission while maintaining structural simplicity
2Ease of operation
If a torque output device is used to provide feedback force, then hand feel is improved, but the device complexity increases
Solution Approach 1:
The friction plate serves as a mediator between the torque output device and the control stick, transmitting torque through friction contact. This intermediary approach provides smooth, controllable feedback force while distributing the mechanical interaction across multiple components, managing overall system complexity
Solution Approach 2:
The patent uses a pressing device to dynamically adjust the pressing force between the friction plate and the control stick housing. By changing the pressing force parameter, the system can regulate the friction torque and feedback force magnitude, enabling flexible control without requiring a complex variable-ratio mechanical transmission system
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
The device enhances the hand feel during control stick operation by providing a direct feedback force, adjustable to meet individual user preferences, thereby improving the overall gaming experience.
Implementation Method 1
the front friction plate applies a torque to the rear friction plate under the pressing force of the pressing device to form a feedback force to the control stick
Implementation Method 2
a magnetic force generated by the coil interacts with the magnetic element to form a pressing force that presses the rear friction plate
Data Source
AI summary
A gamepad and a control stick feedback force device thereof are disclosed. It comprises a control stick that is configured to accept a user's operation and is rotatably installed in a casing of the gamepad. It further comprises: a front friction plate and a rear friction plate that are disposed oppositely, and a pressing device for providing a pressing force between the front friction plate and the rear friction plate, the rear friction plate is fixedly connected with a rotating shaft of the control stick, the front friction plate is connected with a torque output device for driving the front friction plate to rotate, and the front friction plate applies a torque to the rear friction plate under the pressing force of the pressing device to form a feedback force to the control stick.