Trailer Backup-Assist Mobile Interface Gesture Control

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Solution Overview

Problem

Existing trailer backup-assist and remote park-assist systems often continue to autonomously perform vehicle motive functions without user intent, leading to undesired operations due to communication lag or prolonged activation after initial user input, and may perform functions in an unintended manner.

Innovation Solution

A mobile device interface system that presents a touchscreen interface for trailer backup-assist and remote park-assist, allowing users to control vehicle movements via swipes and continuous orbital motions, ensuring vehicle actions align with user input and stopping when input ceases or transitions outside designated motion tracks.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the vehicle autonomously performs motive functions based on initial user input, then the ease of operation is improved, but the reliability deteriorates due to continued operation after user intent ceases

Engineering Contradiction:
Improveease of operationVSAvoidreliability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The system continuously monitors user input through the touchscreen interface and provides feedback by adjusting vehicle motion in real-time. The controller detects ongoing swipe gestures and modifies the autonomous vehicle's motive functions accordingly, ensuring operation continues only while user intent is actively communicated. This closed-loop feedback mechanism resolves the contradiction by maintaining ease of operation through autonomous control while improving reliability through continuous user intent verification.

Inventive Principle:
Principle #23Feedback

2Productivity

If the vehicle continues autonomous operation after initial input, then the productivity is improved, but the object-affected harmful factors increase due to undesired operations

Engineering Contradiction:
ImproveproductivityVSAvoidundesired operations
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

The system dynamically adjusts the duration and nature of autonomous vehicle operation based on real-time detection of user input characteristics. The controller analyzes the temporal patterns of touchscreen gestures, extending autonomous operation only as long as consistent user intent is detected. This dynamic adaptation allows the system to maintain productivity when user intent is clear while preventing undesired operations when input ceases or becomes ambiguous, thus resolving the contradiction between productivity and harmful factors.

Inventive Principle:
Principle #15Dynamics

3Reliability

If the system requires continuous user input for autonomous functions, then the reliability is improved, but the ease of operation deteriorates due to increased user burden

Engineering Contradiction:
ImprovereliabilityVSAvoidease of operation
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The system maintains continuous useful action by interpreting sustained touchscreen gestures as ongoing user intent. Rather than requiring discrete repeated inputs, the system detects continuous swipe patterns and maintains autonomous vehicle operation throughout the duration of the gesture. This approach improves reliability by ensuring user intent is actively communicated while preserving ease of operation by allowing natural, continuous gestural input rather than requiring multiple separate commands.

Inventive Principle:
Principle #20Continuity of useful action

Data Source

PatentUS10684773B2Mobile device interface for trailer backup-assist
Publication Date: 2020.06.16 FORD GLOBAL TECH LLC
  • US10684773B2 patent drawing
  • US10684773B2 patent drawing
  • US10684773B2 patent drawing

AI summary

Method and apparatus are disclosed for mobile device interface for trailer backup-assist. An example vehicle system includes a vehicle and a mobile device. The mobile device includes a touchscreen, a communication module, and a controller. The controller is to present, via the touchscreen, an interface for trailer backup-assist and detect a swipe when the interface is presented. The controller also is to instruct, via the communication module, the vehicle to move in a direction corresponding to the swipe and continue to instruct the vehicle to move in the direction while detecting a continuous orbital motion extending from the swipe.