Pressure-Sensitive Touchscreen for Wireless Vehicle Control
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Solution Overview
Problem
Existing portable input devices lack the ability to simplify the control of motor vehicles, particularly in scenarios where the driver is outside the vehicle, as they do not provide a straightforward method for adapting determinable parameters such as vehicle speed or interior temperature.
Innovation Solution
A portable input device with a pressure-sensitive touchscreen that captures actuating force pressure values to generate control signals for motor vehicle operations, allowing drivers to easily assign these values to parameters like speed and interior temperature through a menu or preset settings, enabling wireless data transmission for motor vehicle control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a portable input device with touchscreen is used to control motor vehicle parameters, then ease of operation is improved, but device complexity increases due to lack of pressure sensitivity
Solution Approach 1:
The patent combines a touchscreen with a pressure sensor into an integrated input device. The pressure sensor is embedded within or coupled to the touchscreen, allowing the device to simultaneously capture both touch location and pressure magnitude. This merging enables enhanced control functionality without requiring separate devices, resolving the contradiction by integrating multiple sensing capabilities into a single unified input interface.
Solution Approach 2:
The input device is designed to perform multiple functions: it can detect both light touches and hard presses on the touchscreen, and map these to different control parameters such as speed or temperature. The pressure-sensitive capability allows a single device to control multiple vehicle parameters through different input intensities, providing universal control functionality that simplifies operation while maintaining device versatility.
2Measurement precision
If pressure sensor is added to touchscreen for capturing actuating force, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The pressure sensor is integrated with the touchscreen structure, either embedded within the touchscreen layers or coupled as a close-proxy component. This merging approach allows simultaneous capture of touch location and pressure magnitude without requiring separate input devices. The integration minimizes additional complexity while enabling precise measurement of actuating force magnitude for enhanced control parameter adaptation.
3Adaptability or versatility
If multiple parameters are assignable to pressure values through menu configuration, then adaptability is improved, but ease of operation worsens due to configuration requirements
Solution Approach 1:
The system provides dynamic adaptability where the mapping between pressure values and control parameters can be changed based on user needs. The menu allows drivers to switch between different parameter assignments (e.g., pressure controls speed vs. pressure controls temperature). This dynamic reconfigurability enables the system to adapt to different operating scenarios while maintaining ease of use through simple menu selection rather than complex programming.
Solution Approach 2:
The system includes preset configurations that automatically map pressure values to relevant control parameters without requiring manual setup. When a driver selects a specific control mode (e.g., speed control or temperature control), the system automatically configures the appropriate parameter mapping. This self-service approach reduces the operational burden on users while maintaining high adaptability to different driving needs.
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
This solution provides a simple and adaptable means for motor vehicle drivers to control vehicle speed and interior temperature using a portable device, enhancing user convenience and flexibility without requiring complex configurations.
Implementation Method 1
The input device (4) has a pressure-sensitive touchscreen (6) and is designed to capture a pressure value (D) of an actuating force of the touchscreen (6)
Data Source
AI summary
The disclosure relates to a method for operating a portable input device to control a motor vehicle. The input device has a pressure-sensitive touchscreen. The input device generates control signals to control the motor vehicle, and transmit said signals to the motor vehicle. The control signal has at least one determinable parameter. The input device is designed to capture a pressure value of an actuating force of the touchscreen, and determine the parameter according to the captured pressure value.