Vehicle Restricted Mode Controller Using Timer and Device Detection

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Solution Overview

Problem

Current vehicle security systems lack effective mechanisms to restrict vehicle functionality temporarily for secondary drivers while ensuring primary driver control and security, particularly in scenarios where valets or technicians need limited access.

Innovation Solution

An apparatus and method that utilize a controller to transition a vehicle from a fully operational mode to a restricted mode based on inputs from the primary driver, using timers and occupant communication devices to manage access and functionality limitations, ensuring the vehicle remains in restricted mode until the primary driver regains control.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a code-based security system is used to allow secondary drivers access, then vehicle accessibility is improved, but security control is weakened because the primary driver cannot ensure temporary restricted access

Engineering Contradiction:
Improvevehicle accessibilityVSAvoidsecurity control
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The system performs preliminary actions by detecting door closure and initiating a timer before the mode transition is complete. This ensures that even if a secondary driver attempts to exit restricted mode prematurely, the timer prevents unauthorized mode changes, thereby maintaining security control while allowing accessible entry.

Inventive Principle:
Principle #10Preliminary action

2Adaptability or versatility

If the vehicle allows immediate exit from restricted mode, then operational flexibility is improved, but security is worsened because secondary drivers can easily revert to full functionality

Engineering Contradiction:
Improveoperational flexibilityVSAvoidsecurity
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The system initiates a timer as a preliminary action when restricted mode is activated. This timer must expire before the vehicle can exit restricted mode, preventing secondary drivers from immediately reverting to full functionality. This maintains security while providing controlled operational flexibility.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system dynamically adjusts the vehicle's operational state based on the timer status. The vehicle transitions from a static restricted mode to a dynamic state where exit is time-dependent. This allows the system to adapt between security (during timer active) and flexibility (after timer expires), resolving the contradiction between these two requirements.

Inventive Principle:
Principle #15Dynamics

3Reliability

If the system monitors door status and timer expiration continuously, then security control is improved, but device complexity increases

Engineering Contradiction:
Improvesecurity controlVSAvoidsystem complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The controller performs multiple functions using a single integrated system: it detects door status, manages timer functionality, controls mode transitions, and monitors security conditions. By consolidating these functions into one universal controller rather than separate dedicated devices, the system achieves high security control with minimal additional complexity.

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

Data Source

PatentUS9840230B2Apparatus and method for controlling a restricted mode in a vehicle
Publication Date: 2017.12.12 FORD GLOBAL TECH LLC
  • US9840230B2 patent drawing
  • US9840230B2 patent drawing
  • US9840230B2 patent drawing

AI summary

An apparatus for controlling a restricted mode is provided. The apparatus includes a controller that is configured to receive a first input from a primary driver corresponding to a request to change a vehicle from a fully operational mode to a restricted mode for a secondary driver. The controller is further configured to initiate a first timer for preventing the vehicle from exiting from the restricted mode to the fully operational mode if an occupant communication device belonging to the primary driver is detected by the vehicle prior to the first timer expiring.