Vehicle Touch Control Multi-Finger Input With Pressure Thresholds

The patent applies local quality by differentiating the functional properties of different regions or contact points on the touch-sensitive surface. When multiple fingers contact the surface, each contact point is analyzed individually to determine its characteristics (such as pressure, contact area, and position). This allows the system to identify which finger is intended to trigger a function based on local contact properties, thereby maintaining input accuracy despite the large surface area accommodating multiple input methods.

The patent utilizes parameter changes by monitoring variations in touch parameters such as pressure, contact area, and signal strength over time. When multiple fingers contact the surface simultaneously, the system detects changes in these parameters for each contact point and uses this dynamic information to distinguish between intentional and accidental contacts. By analyzing parameter changes rather than static touch presence, the system maintains reliability while supporting versatile input methods.

The patent applies universality by designing the touch-sensitive surface to perform multiple functions with a single sensor system. The same sensors that detect touch position also measure pressure and contact area, eliminating the need for separate sensor arrays. This multi-functional approach allows the system to achieve high measurement precision for distinguishing intentional input while avoiding the increased device complexity that would result from adding dedicated pressure sensors throughout the surface.

The patent implements self-service by enabling the touch-sensitive surface to automatically differentiate between intentional and accidental input through its own inherent sensing capabilities. The surface monitors its own touch parameters (pressure, contact area, signal strength) and uses this self-generated data to determine which contact is intended to trigger a function. This self-service mechanism improves measurement precision without requiring external intervention or additional complex sensor systems.