Multi-Zone Rotary Control With Magnetorheological Haptic Resistance
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Solution Overview
Problem
Existing operating devices for vehicles and other applications require additional switches and parts to manage different functions and menus, leading to increased complexity and distraction for the operator, particularly in high-concentration tasks.
Innovation Solution
An operating device with a single operating element featuring multiple actuating zones, where movement resistance is settable using a magnetorheological brake unit, allowing for intuitive and ergonomic operation without additional switches, enabling haptic feedback and reduced operator distraction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If additional switches and parts are added to manage different functions and menus, then the functionality and versatility of the operating device is improved, but the device complexity and operator distraction increase
Solution Approach 1:
The patent applies multi-functionality by enabling a single operating element to perform multiple functions through different actuating zones. The operating element can be actuated from different zones (e.g., upper, lower, left, right sides) to access different menus and functions, eliminating the need for separate switches for each function while maintaining comprehensive functionality.
Solution Approach 2:
The operating element is segmented into multiple actuating zones, where each zone corresponds to specific functions or menus. This segmentation allows the system to provide differentiated functionality across different regions of the same component, enabling versatile operation without adding multiple separate parts.
2Adaptability or versatility
If additional switches and parts are added to manage different functions and menus, then the functionality and versatility of the operating device is improved, but the operator distraction increases
Solution Approach 1:
By consolidating multiple functions into a single operating element with multiple actuating zones, the patent reduces the number of separate components the operator must locate and manipulate. The operator can access different functions by actuating different zones of the same element, reducing cognitive load and distraction.
3Device complexity
If a single operating element with multiple actuating zones is used, then the device complexity is reduced and ease of operation is improved, but the ability to provide differentiated control for different functions is challenged
Solution Approach 1:
The patent applies local quality by assigning different characteristics or responses to different actuating zones of the operating element. Each zone can be configured to provide specific control functions, haptic feedback, or menu access patterns, enabling differentiated control capabilities while maintaining a unified physical component.
4Ease of operation
If movement resistance is made variable using a magnetorheological brake unit, then the haptic feedback and ease of operation are improved, but the device complexity and manufacturing cost increase
Solution Approach 1:
The patent applies parameter changes by utilizing a magnetorheological brake unit that can dynamically adjust the movement resistance of the operating element. By changing the rheological properties of the magnetorheological fluid through magnetic field application, the system provides variable haptic feedback and movement characteristics without adding mechanical complexity.
Solution Approach 2:
The patent replaces traditional mechanical braking or damping mechanisms with a magnetorheological brake unit that uses magnetic field control to adjust resistance. This substitution eliminates complex mechanical linkages while providing precise, variable haptic feedback through controllable fluid resistance.
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 solution allows for versatile and intuitive operation of multiple functions and menus with a single operating element, reducing operator distraction and improving productivity by providing clear haptic feedback, thus enhancing usability and reducing error frequency.
Implementation Method 1
A movement resistance for the mobility of the operating element is settable by means of at least one controllable brake unit. The rotational movement can be influenced therein using a magnetorheological brake unit
Data Source
AI summary
An apparatus for carrying out inputs in an input capturing unit that can be coupled to the apparatus. An operating device has a receiving part and an operating element that is rotatably mounted on the receiving part. The operating element can be rotated by a finger to effect an input. A torque for the rotation of the control element can be adjusted by way of a controllable braking device. In addition, the control element has at least two actuating zones. The resistance to movement for the movability of the operating element can be adjusted depending on from which actuation zone the operating element is actuated and/or which actuation zone was previously activated.