Vehicle Closure Panel Gesture Detection to Prevent False Triggers
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Solution Overview
Problem
Existing vehicle detection systems for powered closure panels face challenges in avoiding false triggering and allowing users to customize gesture activation, while maintaining effective non-contact activation.
Innovation Solution
A detection system that includes a sensor subassembly for detecting objects in a detection zone, a gesture selector for user input, and a controller arrangement that adjusts thresholds based on user input and analyzes sensor signals to initiate closure panel movement only when valid activation gestures are detected.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If gesture detection sensitivity is increased to enable non-contact activation, then ease of operation is improved, but false triggering increases reducing reliability
Solution Approach 1:
The system dynamically adjusts detection parameters including sensitivity thresholds, detection zone dimensions, and gesture validation criteria based on contextual information such as user proximity, vehicle state, and environmental conditions. This allows the system to maintain high sensitivity for legitimate gestures while filtering out false triggers from pedestrians or objects.
Solution Approach 2:
The system incorporates feedback mechanisms where detection results and system responses are communicated to users through visual or audible signals. This allows users to confirm or cancel unintended activations and provides the system with data to refine its detection algorithms, reducing false triggering over time while maintaining ease of operation.
2Adaptability or versatility
If multiple gesture options are provided for user customization, then adaptability is improved, but device complexity increases
Solution Approach 1:
The system provides dynamic gesture customization where users can select from multiple pre-configured gesture types (e.g., hand wave, foot motion, arm movement) and adjust parameters such as detection zone size, motion threshold, and activation speed. The system adapts to user preferences and learning patterns, allowing customization without requiring complex manual configuration of each parameter.
Solution Approach 2:
The system includes pre-configured gesture profiles and detection parameters that are prepared in advance. Users can select from predefined gesture types and modes rather than configuring every parameter manually. The system also performs preliminary learning during initial setup to establish baseline gesture patterns, reducing the complexity of ongoing customization.
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
The system effectively reduces false triggering by allowing users to customize valid activation gestures and ensures reliable non-contact activation of powered closure panels, enhancing user convenience and safety.
Implementation Method 1
at least one sensor subassembly is a radar sensor subassembly including at least one radar transmit antenna for transmitting radar waves and at least one radar receive antenna for receiving the radar waves after reflection from the object in the detection zone
Data Source
AI summary
A detection system for a closure panel of a vehicle and corresponding method of operation are provided. The system includes a detection module including a sensor subassembly for detecting an object in a detection zone and sensing a motion and characteristics of the object and outputting a corresponding sensor signal. The system also includes a gesture selector for accepting a user input from a user to select a valid activation gesture and a controller arrangement coupled to the sensor subassembly. The controller arrangement receives the user input from the gesture selector and adjusts a plurality of predetermined thresholds representing the valid activation gesture by the user required to move the closure panel based on the user input. The controller arrangement analyzes the sensor signal and determines whether the sensor signal is within the plurality of predetermined thresholds and then initiates movement of the closure panel accordingly.