Vehicle Door Non-Contact Sensor Localization
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Solution Overview
Problem
Existing vehicle door opening and closing systems face issues with incorrect operation due to non-contact detection sensors being susceptible to false triggers from passing individuals or objects, and users find it difficult to visually confirm the detection range of these sensors, leading to troublesome operation.
Innovation Solution
An automatic opening and closing apparatus with a non-contact detection sensor, such as a capacitive sensor, is mounted inside the vehicle, with a detection range specified to the inner side of the vehicle's outermost position, ensuring accurate detection of the user's intent while preventing false triggers from external objects, and is hidden from view to maintain the vehicle's design aesthetics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the detection range is extended to allow non-contact operation, then ease of operation is improved, but reliability deteriorates due to false triggers from passing individuals or objects
Solution Approach 1:
The patent applies local quality by creating a localized detection zone with specific spatial boundaries. The detection range is restricted to a predetermined area near the door handle, allowing non-contact operation while preventing false triggers from objects or individuals outside this localized zone. This resolves the contradiction by making the detection sensor selectively responsive only in the intended operational area.
2Ease of operation
If the non-contact detection sensor is mounted on the outer surface of the vehicle, then ease of operation is improved, but object-generated harmful factors worsen due to detection of external objects like animals or grass
Solution Approach 1:
The sensor is positioned to create a localized detection zone that is spatially restricted to the area between the closed door and the outer surface. This localized detection area prevents the sensor from detecting external objects such as animals or grass while maintaining non-contact operation capability for the user's hand.
Solution Approach 2:
The patent introduces the door itself as an intermediary structure that defines the detection zone. The detection range is established in the space between the door and the outer surface, using the door as a boundary that prevents external objects from being detected while allowing user interaction.
3Ease of operation
If the detection sensor is positioned to be visible to users, then ease of operation is improved, but device complexity increases due to additional mounting considerations
Solution Approach 1:
The patent merges the detection sensor with the door handle structure. The sensor is integrated into the existing door handle assembly, making it visible to users for ease of operation while avoiding the need for separate mounting structures. This combination reduces device complexity by utilizing the existing structural elements of the door handle.
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 solution reduces incorrect door operations and simplifies user interaction by ensuring the detection range is clearly visible yet unlikely to be accidentally triggered, enhancing the reliability and usability of the automatic door system.
Implementation Method 1
the non-contact detection sensor is a capacitive sensor that detects approach of the user's hand
Data Source
AI summary
An automatic opening and closing apparatus of an opening and closing member for a vehicle includes an opening and closing member driving portion, a receiving portion configured to receive a radio signal transmitted from a radio transmitter and indicating identification information for identifying the vehicle, a non-contact detection sensor including a detection range that is specified to an inner side than an outermost position of the vehicle in a direction towards an outer side of a vehicle interior from the opening and closing member in a state where the opening and closing member is closed, and a control portion configured to control the opening and closing member driving portion in a case where the non-contact detection sensor detects an object in a state where the identification information is correlated to the vehicle on a basis of the radio signal received from the radio transmitter.