Vehicle Key Holder With Actuator Pressing for Car Sharing Access

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Solution Overview

Problem

Existing vehicle-mounted devices for car sharing require disassembling the genuine electronic key to extract the circuit board, making the key unusable and creating a burdensome installation process.

Innovation Solution

A vehicle-mounted device that accommodates the electronic key without disassembly, using an actuator to perform button pressing operations on the key, allowing it to be used as is and eliminating the need for circuit extraction and assembly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the circuit board is extracted from the genuine electronic key and embedded in the vehicle-mounted device, then the vehicle can be unlocked and locked through the vehicle-mounted device, but the electronic key becomes unusable and the installation process becomes burdensome

Engineering Contradiction:
Improvevehicle unlocking and locking functionVSAvoidinstallation process
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The invention extracts only the necessary button pressing function from the vehicle-mounted device and applies it to the electronic key, rather than extracting the entire circuit board. The actuator presses the buttons on the electronic key's operation surface, achieving vehicle control while preserving the key's usability and simplifying installation to merely placing the device in the key pouch.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The vehicle-mounted device is designed to accommodate different types of electronic keys through a universal key pouch structure. The actuator can press buttons on various key designs, and the device can control multiple vehicle functions (unlocking, locking, sliding doors) through a single interface, enhancing adaptability.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Reliability

If the circuit board is extracted from the genuine electronic key, then the vehicle-mounted device can control the vehicle, but the electronic key cannot be used anymore

Engineering Contradiction:
Improvevehicle control functionVSAvoidelectronic key usability
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The invention separates the vehicle control function from the electronic key's internal circuitry. The vehicle-mounted device contains the control logic and communicates with the vehicle, while the electronic key remains intact and usable. The actuator mechanically presses the key's buttons to trigger signals, allowing both systems to function independently and simultaneously.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The vehicle-mounted device acts as an intermediary between the user and the vehicle. Instead of modifying the electronic key, the device mediates by pressing the key's buttons automatically based on received control signals, thereby preserving the key's original functionality while enabling remote vehicle control.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Device complexity

If the electronic key is disassembled to take out the circuit board, then the vehicle-mounted device can be configured, but the design and convenience of the genuine electronic key are lost

Engineering Contradiction:
Improvevehicle-mounted device configurationVSAvoidelectronic key integrity
Core Design Contradiction:
Device complexityVSEase of manufacture

Solution Approach 1:

The vehicle-mounted device is pre-configured with the necessary control logic and communication capabilities before being placed in the key pouch. This preliminary configuration eliminates the need to disassemble or modify the electronic key during installation, preserving the key's original design and manufacturing integrity while achieving the desired functionality.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS12194958B2Vehicle-mounted device
Publication Date: 2025.01.14 YOKOWO CO LTD
  • US12194958B2 patent drawing
  • US12194958B2 patent drawing
  • US12194958B2 patent drawing

AI summary

A vehicle-mounted device (10) includes an accommodation unit (50) that accommodates an electronic key (7) of a vehicle (5), and a first actuator (31) and a second actuator (32) that each perform a button pressing operation on the electronic key (7) that is accommodated in the accommodation unit (50). The accommodation unit (50) allows the first actuator (31) and the second actuator (32) to each perform the button pressing operation on push buttons on different electronic keys (7) of different vehicles (5).