Operating Device with Position-Dependent Motor Load Control
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Solution Overview
Problem
Existing operating devices for video game controllers do not effectively transfer recoil forces to the operator's finger, limiting the realism of game operations and restricting the variety of reaction forces that can be applied.
Innovation Solution
An operating device with a moving member that reciprocates, a motor applying forward and backward forces, a position sensing unit detecting the member's position, and a control device adjusting motor operation based on sensed positions to apply various reaction forces directly to the finger, enabling realistic and varied operation feedback.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If the entire gun main body performs reciprocating vibration, then the operator can feel some reaction force, but the finger operating the trigger cannot directly feel recoil
Solution Approach 1:
The invention divides the reaction force application into two independent parts: a first reaction force applied to the gun main body and a second reaction force applied to the trigger. This segmentation allows each part to provide appropriate feedback - the gun main body provides overall recoil sensation while the trigger provides direct finger-level recoil feedback, resolving the contradiction between general reaction force and specific operational realism.
2Adaptability or versatility
If only vibration force from motor rotation is applied, then the structure is simple, but various operation reaction forces cannot be applied to the operator
Solution Approach 1:
The invention employs dynamic characteristics of two motors with different inertia properties - a first motor with large inertia for the gun main body providing strong, sustained reaction forces, and a second motor with small inertia for the trigger providing quick, responsive forces. This dynamic differentiation enables various operation reaction forces to be applied through coordinated control of the two motors, achieving versatility without excessive complexity.
Solution Approach 2:
The invention changes key parameters of the force application system by using two motors with different inertia values and controlling them independently. The first motor provides large inertia characteristics for overall recoil, while the second motor provides small inertia characteristics for trigger feedback. By adjusting the control parameters of each motor based on operating conditions, various operation reaction forces can be generated.
3Adaptability or versatility
If the moving member is controlled by detecting its position, then various operation feelings can be provided, but the system complexity increases
Solution Approach 1:
The invention implements feedback control by detecting the position of the moving member and using this information to control the motor. The position detection unit continuously monitors the moving member's position, and the control unit adjusts motor operation based on this feedback to provide appropriate reaction forces. This feedback mechanism enables various operation feelings to be provided while keeping the control system manageable through straightforward position-based control logic.
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 allows direct application of reaction forces to the operator's finger, enhancing the realism and variety of operation feelings during gameplay by controlling the frequency, amplitude, and load of the forces applied.
Implementation Method 1
a motor that applies a force for moving forward and a force for moving rearward to the moving member
Implementation Method 2
a position sensing unit that detects a position to which the moving member is moved
Data Source
AI summary
An operating device includes a moving member that reciprocates, a motor that applies a force for moving forward and a force for moving rearward to the moving member, a position sensing unit that detects a position to which the moving member is moved, and a control device that varies a load applied to the motor in accordance with an output signal from the position sensing unit. According to the operating device, a reaction force that acts on a finger or the like can be changed in accordance with the position of the moving member that is operated by using a hand or the finger.