Remote Park Assist Input Validation via Segmented Touchscreen
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Solution Overview
Problem
Existing remote park-assist systems are prone to unintended autonomous vehicle movements due to accidental or unintended inputs from users, such as slips or external objects, which can lead to undesired vehicle actions.
Innovation Solution
A mobile app-based remote park-assist system that requires predefined continuous stationary and dynamic input sequences via a touchscreen interface to ensure intended initiation of autonomous vehicle functions, using a combination of pushbuttons and input pads for precise user input validation, and wireless communication with the vehicle to control its autonomy unit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a simple input mechanism is used for remote park-assist, then ease of operation is improved, but reliability deteriorates due to accidental or unintended inputs
Solution Approach 1:
The input mechanism is segmented into two distinct components: a pushbutton for initiating the parking maneuver and an input pad for confirming the maneuver. This segmentation ensures that both components must be activated in sequence, preventing accidental activation while maintaining ease of operation through intuitive gestures.
Solution Approach 2:
The system requires a preliminary action (pressing the pushbutton) before the final activation can occur. The pushbutton activation prepares the system and displays a prompt on the touchscreen, requiring a subsequent deliberate action on the input pad to complete the initiation. This preliminary action prevents unintended activation while keeping the overall process simple.
2Reliability
If multiple input validations are implemented, then reliability is improved, but device complexity increases
Solution Approach 1:
The touchscreen display serves as an intermediary between the pushbutton and input pad interactions. It provides visual feedback and prompts that guide the user through the two-step process, making the additional validation step feel natural rather than complex. The intermediary manages the complexity by presenting a clear, simple interface.
3Reliability
If continuous monitoring of input states is performed, then reliability is improved by detecting unintended inputs, but use of energy increases
Solution Approach 1:
The system performs input validation periodically at key interaction points rather than continuously monitoring all inputs. The pushbutton triggers a validation sequence, and the input pad provides a final confirmation check. This periodic validation at critical moments ensures reliability while minimizing energy consumption compared to continuous monitoring.
Data Source
AI summary
Method and apparatus are disclosed for user interfaces for vehicle remote park-assist. An example remote park-assist system includes a mobile app. The mobile app includes an interface for a touchscreen of a mobile device. The interface includes a pushbutton for receiving a continuous stationary input and an input pad for receiving a dynamic input sequence. The example remote park-assist system also includes a communication module for communication with the mobile device and an autonomy unit to perform motive functions while the interface simultaneously receives the continuous stationary input and the dynamic input sequence.