Capacitive Sensor Remote Control for Automatic Parking Safety
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Solution Overview
Problem
Existing remote control units for automatic vehicle parking systems are prone to mechanical blockages, which can lead to accidents, and are often complex and expensive, lacking flexibility and reliability in interrupting automatic parking maneuvers.
Innovation Solution
A remote control unit with a capacitive sensor that detects the presence of a user's finger, inhibiting the automatic parking command if the finger is not present, using a circular or oblong sensitive zone and measuring capacitance values to ensure reliable interruption of parking maneuvers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a mechanical switch is used for parking control in remote controls, then the device structure is simple, but mechanical blockage can occur leading to unreliable interruption of automatic parking
Solution Approach 1:
The patent replaces the mechanical switch with a capacitive sensor that detects finger presence through electrical field changes. This substitution eliminates mechanical blockage issues while maintaining simple device structure, directly resolving the contradiction between reliability and complexity.
2Reliability
If a fingerprint verification system is added to the remote control, then security is improved, but the device becomes complex and expensive
Solution Approach 1:
The patent uses a capacitive sensor to detect finger presence through electrical field changes, providing security without the complexity and cost of fingerprint verification systems. This approach achieves reliable security while keeping the device simple and affordable.
3Reliability
If the capacitive sensor measures capacitance values to detect finger presence, then reliability of control is improved, but energy consumption increases
Solution Approach 1:
The capacitive sensor operates by periodic measurement of capacitance values, detecting finger presence through changes in electrical field. This periodic action provides reliable detection while consuming minimal energy compared to continuous monitoring systems.
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
Enhances safety by preventing accidental vehicle movements due to mechanical blockages and ensures reliable interruption of automatic parking, maintaining user convenience without adding complexity or cost.
Implementation Method 1
a capacitive sensor (11) positioned in a zone peripheral to the control element (9)
Data Source
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AI summary
The present invention relates to a remote control unit for an automatic maneuvering device of a motor vehicle comprising a central unit located at the level of the motor vehicle, said unit is intended to communicate with the central unit and is equipped with an automatic maneuvering control element capable of taking an active position which controls the automatic maneuver and a rest position characterized in that the unit also includes a presence sensor at the level of said control element configured to detect the presence of a user's finger and in that the unit includes means for inhibiting a maneuvering command by said control element when no presence is detected by said presence sensor.