Vehicle Input Handle with Dynamic Directional Constraint
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Solution Overview
Problem
In vehicles, users face challenges in accurately selecting and inputting control commands for various functions due to the complexity of available controls, leading to confusion and potential errors in operation.
Innovation Solution
An input device with a handle that moves in multiple directions, equipped with motors, drivers, and controllers to limit movement based on control items, providing haptic feedback and vibration to guide user input, enhancing the operational experience and accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the handle is allowed to move freely in multiple directions, then the user has more flexibility in input operations, but it becomes difficult to accurately recognize the operating situation and may lead to input errors
Solution Approach 1:
The handle's movement constraints are dynamically adjusted based on the selected control item. The controller activates different sets of motors (first servo motors for vertical movement, second servo motors for horizontal movement) depending on whether the control item requires vertical or horizontal adjustment, allowing the handle to move freely in the appropriate direction while being constrained in other directions to prevent errors.
2Measurement precision
If haptic feedback is provided through force application and vibration, then the user can more accurately recognize the operating situation, but the device complexity increases due to additional motors and control mechanisms
Solution Approach 1:
The same motor system serves dual purposes: the first and second servo motors both provide mechanical constraint forces to limit handle movement directions and simultaneously generate haptic feedback through controlled vibration and resistance. This multi-functionality reduces the need for separate feedback mechanisms, thereby limiting device complexity while achieving accurate operating recognition.
3Reliability
If the moving direction of the handle is limited based on control items, then input accuracy is improved, but the ease of operation is reduced due to restricted movement
Solution Approach 1:
The movement constraints are dynamically adapted to match the specific control item being operated. When a control item requiring vertical adjustment is selected, only vertical movement is constrained while horizontal movement remains free, and vice versa. This dynamic adaptation ensures that the handle remains as operable as possible while still providing the necessary directional guidance for accurate input.
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 input device improves user operation by providing clear haptic feedback and vibration, allowing for precise control item selection and reducing errors through directional movement limitation and force application, enhancing user interaction with vehicle controls.
Implementation Method 1
a motor configured to generate force related to a movement of the handle
Implementation Method 2
a vibration generator configured to generate vibration and provide the vibration to the handle
Data Source
AI summary
An input device provides an improved feeling of operation to a user and allows the user to recognize an operation of a handle by providing haptic feedback by limiting a direction of movement of the handle of the input device provided in a vehicle according to a control item, applying a reaction force to the handle, or generating a vibration. The input device includes the handle that is movable in a first direction and a second direction and a motor that is configured to generate force related to a movement of the handle. A driver is configured to operate the motor. A controller operates the driver to limit a moving direction of the handle to the first direction or the second direction according to a control item controlled by the movement of the handle.