Vehicle Multi-Function Switch With Haptic Feedback and State Display
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Solution Overview
Problem
The multi-function switch in vehicles requires different manufacturing for each vehicle model due to varying functions and operations, making it difficult to manage and manufacture, and the symbols are often out of the driver's line of sight, complicating intuitive identification of the manipulation state.
Innovation Solution
A multi-functional manipulation apparatus with switches that operate via external force and return to a neutral position, coupled with vibrators and a controller that adjusts vibration modes and patterns based on operation direction, along with a display to indicate operation states, allowing intuitive identification and compatibility across different vehicle specifications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If different symbols are printed on the multi-function switch for each vehicle model, then the function and operation can be customized for each vehicle, but the manufacturing and management of part variations becomes difficult
Solution Approach 1:
The patent uses a display device to show function symbols and operation states instead of printing them directly on the physical switch. The display creates a visual copy of the control interface that can be dynamically changed through software, eliminating the need to manufacture different physical switches for different vehicle models. The controller generates and displays appropriate symbols based on the specific vehicle configuration.
2Loss of information
If symbols are printed on the external surface of the multi-function switch, then the function can be indicated, but the driver cannot intuitively identify the manipulation state because the symbols are out of line with the driver's gaze
Solution Approach 1:
The patent transitions from a two-dimensional printed surface on the switch to a display interface that can be positioned in the driver's line of sight. The display device presents function symbols and manipulation states in a visual field accessible to the driver, typically on the instrument panel or head-up display, eliminating the need for the driver to shift gaze to identify control states.
Solution Approach 2:
The display device acts as an intermediary between the multi-function switch and the driver. Instead of the driver directly observing symbols on the switch, the controller receives signals from the switch and presents the information through the display interface, which is positioned optimally for driver visibility and comprehension.
3Loss of information
If a vibrator is coupled to the switch to provide vibration feedback, then the manipulation state can be confirmed through tactile feedback, but the vibration may interfere with the driver's operation of the switch
Solution Approach 1:
The vibrator provides periodic vibration pulses rather than continuous vibration. The controller activates the vibrator in specific patterns corresponding to different manipulation states, creating distinct tactile signals that confirm button presses or position changes without creating continuous interference. The vibration occurs only when needed to confirm state 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 intuitive operation recognition and compatibility across various vehicle models by using vibration feedback and display indicators, eliminating the need for model-specific manufacturing and enhancing driver understanding of vehicle accessory device states.
Implementation Method 1
a vibrator coupled to the switch to vibrate depending on an operation of the switch
Data Source
AI summary
A multi-functional manipulation apparatus and method include a switch that operates by an external force from a neutral position and returns to the neutral position when the external force is removed, a vibrator coupled to the switch to vibrate depending on an operation of the switch, and a controller that controls a vehicle accessory device corresponding to the vibrator and the switch, in response to the operation of the switch.