Vehicle Touch Pad Cursor Stability During Push
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Solution Overview
Problem
Existing vehicle operating devices with touch pads face issues of unintended cursor movement due to finger deformation or slipping, leading to erroneous operations when selecting menu items, as the cursor can unintentionally leave the operation menu.
Innovation Solution
An operating device for vehicles that includes a touch operation surface, a coordinate detecting unit, a push detecting unit, and a control unit. The control unit prevents cursor position updates for a predetermined time after a push detection, ensuring the cursor remains stable until the touch surface returns to its original position, thereby reducing unintended cursor movements and erroneous operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the cursor position is updated in real-time during touch pad operation, then the cursor responsiveness is improved, but the cursor may move unintentionally due to finger deformation or slipping
Solution Approach 1:
The system performs preliminary action by detecting the push state of the touch pad before updating the cursor position. When a push state is detected, the system temporarily suspends cursor position updates, preventing unintended cursor movement caused by finger deformation or slipping during the pushing action. This preliminary detection and conditional suspension mechanism ensures that cursor updates only occur when appropriate, maintaining both responsiveness and operational accuracy.
2Ease of operation
If the touch pad is made responsive to finger movement, then the ease of operation is improved, but the likelihood of erroneous operation increases
Solution Approach 1:
The system dynamically adjusts its behavior based on the operational state of the touch pad. During normal operation, the cursor responds to finger movements for easy navigation. However, when a push state is detected, the system dynamically changes to a protected state where cursor position updates are suspended, preventing erroneous selections. This dynamic state transition allows the system to maintain ease of operation while preventing errors at critical moments.
Data Source
AI summary
An operating device for a vehicle includes a display, a touch operation surface set at a first predetermined position and pushable and returnable to the first predetermined position after being pushed, a coordinate detecting unit to detect a coordinate indicating a touch position of an operating finger on the touch operation surface, a push detecting unit to detect the push of the touch operation surface, and a control unit to display a cursor in a screen displayed on the display based on the coordinate detected by the coordinate detecting unit and to perform operation details of an item in the screen selected by the cursor based on the push of the touch operation surface detected by the push detecting unit. The control unit does not update the position of the cursor within a predetermined amount of time after the push detecting unit detects the push of the touch operation surface.