Integrated Shift Surface With Haptic Feedback for Range Selection
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Solution Overview
Problem
Existing shift operation switch devices require multiple push buttons for each vehicle range, increasing component count and complexity.
Innovation Solution
A shift device with an operation body featuring multiple shift positions on a single surface, utilizing a detection mechanism to change transmission ranges and a notification mechanism that notifies the occupant through vibration, light, or sound.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple push buttons are provided for each vehicle range, then the shift operation can be performed for each range, but the number of components increases
Solution Approach 1:
Multiple push buttons for different vehicle ranges (first range, second range, third range) are merged into a single operation body. The operation body integrates multiple operation portions corresponding to different shift ranges, allowing all shift operations to be performed through one unified component rather than separate buttons for each range.
Solution Approach 2:
The single operation body serves multiple functions by incorporating operation portions for different vehicle ranges within one structure. This universal design allows the operation body to handle first range shift operations, second range shift operations, and third range shift operations, eliminating the need for separate specialized buttons.
2Ease of operation
If multiple push buttons are provided for each vehicle range, then each range can be controlled independently, but the device structure becomes more complex
Solution Approach 1:
The operation body is segmented into multiple operation portions, each corresponding to a specific vehicle range (first operation portion for first range, second operation portion for second range, third operation portion for third range). This segmentation allows independent control of each range while maintaining a unified structure, preserving ease of operation without increasing overall device complexity.
Solution Approach 2:
Multiple operation portions for independent range control are combined within a single operation body structure. The detection mechanism also integrates multiple detection portions to detect operations on different operation portions, creating a unified system that maintains independent control capability while simplifying the overall device structure.
3Device complexity
If a single operation body with multiple shift positions is used, then the number of components is reduced, but user recognition of shift range changes may be insufficient
Solution Approach 1:
A notification mechanism is integrated into the device to provide feedback to the user about shift range changes and restrictions. This feedback system compensates for the reduced visual or tactile distinction between multiple shift positions on a single operation body, ensuring users can clearly recognize when a shift range change occurs or when a change is restricted.
Solution Approach 2:
The notification mechanism utilizes vibration to alert users about shift range changes and restrictions. By incorporating vibrational feedback, the system provides a distinct tactile signal that enhances user recognition of shift operations without requiring additional physical components or complex structural changes to the operation body.
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
Reduces the number of components, simplifies operations, and enhances user recognition of shift range changes and restrictions through tactile and sensory feedback.
Implementation Method 1
the notification mechanism performs notification by vibration
Data Source
AI summary
In a shift device, when an occupant performs a touch operation on a P position, an R position, an N position, or a D position of a front housing with a finger, a shift range of a transmission is changed, and the front housing vibrates. Here, a plurality of shift positions are provided on the front housing. Therefore, the number of components can be reduced.