Vehicle Door Exit Aid with Capacitive Sensor Detection
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Solution Overview
Problem
Existing vehicle door adjustment systems do not provide a simple and intuitive exit aid for vehicle occupants, making it difficult for passengers to exit, especially in vehicles with flat chassis designs.
Innovation Solution
A system that includes sensor devices, such as capacitive sensors and an interior monitoring system, to detect a passenger's intent to exit, and a control device that actuates a mechanism to hold the vehicle door in an open position, allowing the occupant to easily pull out by grasping the door handle, with optional AI pattern recognition and manual override via a switch or remote control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the vehicle door is made easily adjustable for manual and electromotive adjustment, then the ease of operation is improved, but the device complexity increases
Solution Approach 1:
The adjustment system is divided into separate functional modules: a first sensor device for detecting exit intent, a second sensor device for detecting door interaction, a control device for processing signals, and an electromotive adjustment device for executing door movement. This segmentation allows each component to perform its specific function independently, improving overall system reliability while maintaining ease of operation through specialized functionality.
2Ease of operation
If sensor devices are added to detect exit intent and door interaction, then the ease of operation is improved, but the device complexity increases
Solution Approach 1:
The system employs sensor devices that automatically detect exit intent and door interaction without requiring manual input from the occupant. The first sensor device detects when an occupant approaches the door, and the second sensor device detects when the door is pulled, triggering the electromotive adjustment device to automatically hold the door open. This self-service approach improves ease of operation by eliminating the need for occupants to manually operate complex adjustment mechanisms.
3Ease of operation
If the door is held firmly in position to assist exit, then the ease of operation is improved, but the stability of the door position may be compromised
Solution Approach 1:
The electromotive adjustment device dynamically adjusts the door holding force based on real-time sensor input. When the first sensor device detects exit intent and the second sensor device detects door interaction, the device activates to hold the door open with appropriate force. The system can modulate the holding force to maintain door stability while assisting the occupant's exit, preventing the door from closing unexpectedly. This dynamic control ensures both ease of operation and position stability under varying conditions.
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
Facilitates easier vehicle exit by securely holding the door in an open position, enhancing accessibility and reducing the effort required for passengers to leave the vehicle, while allowing manual override for flexibility.
Implementation Method 1
The at least one sensor device for example can include a capacitive sensor. Such a capacitive sensor can be used to detect, for example, an approach to or a touch of an assembly on which the capacitive sensor is arranged
Data Source
AI summary
A vehicle door arranged on a vehicle body and a device for manually and/or electromotively adjusting the vehicle door relative to the vehicle body including an output element moved on adjustment of the vehicle door and a switching device configured to switch between a coupling state and a freewheeling state, and a control device. The switching device configured to couple the output element to a further assembly in the coupling state and to disengage it from the further assembly in the freewheeling state such that the output element is movable with respect to the further assembly. At least one sensor device configured to detect a signal indicating an occupant's wish to get out of the vehicle, and configured to evaluate the signal for detecting an exit wish and actuate the switching device to switch into the coupling state.