Vehicle Environment Lighting Standby Control for Authorized Approach

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Solution Overview

Problem

Existing vehicle environment lighting systems often activate unnecessarily, leading to unnecessary energy consumption and battery discharge, as they are triggered by anyone approaching the vehicle, rather than just authorized individuals.

Innovation Solution

Implementing a standby mode for the environment lighting system that requires an authorized person to activate it, using methods such as identification transmitters, facial recognition, audio signals, or voice commands to ensure only authorized individuals can activate the lighting, thereby reducing energy usage and enhancing user comfort.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the environment lighting system is activated automatically when anyone approaches the vehicle, then user convenience and safety are improved, but energy consumption increases and battery discharge occurs unnecessarily

Engineering Contradiction:
Improveuser convenienceVSAvoidenergy consumption
Core Design Contradiction:
Ease of operationVSUse of energy by moving object

Solution Approach 1:

An identification transmitter serves as an intermediary between the approaching person and the lighting system. The system detects the transmitter signal first, then activates lighting only after confirming authorization. This intermediary layer prevents direct activation by unauthorized persons while maintaining automatic activation for authorized users.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The system performs preliminary identification and authorization checks before activating the lighting system. The control unit detects the identification transmitter signal and verifies authorization status in advance, ensuring that lighting activation occurs only when both proximity and authorization conditions are met, thereby preventing unnecessary energy consumption.

Inventive Principle:
Principle #10Preliminary action

2Reliability

If the environment lighting system activates for anyone approaching, then safety and comfort for approaching individuals are enhanced, but unnecessary activation occurs leading to battery discharge

Engineering Contradiction:
ImprovesafetyVSAvoidbattery discharge
Core Design Contradiction:
ReliabilityVSLoss of energy

Solution Approach 1:

The lighting system dynamically adjusts its activation behavior based on the authorization status detected from the identification transmitter. The control unit continuously monitors for authorized transmitters and changes the system state from inactive to active only when authorization is confirmed, creating a dynamic response that balances safety with energy conservation.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system incorporates feedback from the identification transmitter detection to control lighting activation. The control unit receives signals from the transmitter, evaluates authorization status, and uses this feedback information to determine whether to activate the lighting system, ensuring activation occurs only when appropriate and necessary.

Inventive Principle:
Principle #23Feedback

3Use of energy by moving object

If authorization verification using identification transmitters is implemented, then unnecessary activation is prevented reducing energy use, but device complexity increases

Engineering Contradiction:
Improveenergy consumptionVSAvoidsystem complexity
Core Design Contradiction:
Use of energy by moving objectVSDevice complexity

Solution Approach 1:

The control unit is designed with multi-functionality, serving both as the vehicle's existing control system and as the authorization verification unit for the lighting system. By integrating the identification transmitter detection and authorization logic into the existing control unit, the patent avoids adding separate dedicated hardware, thereby minimizing the increase in device complexity while still implementing energy-saving authorization verification.

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

Data Source

PatentUS20240075870A1Method for operating an environment lighting device of a vehicle
Publication Date: 2024.03.07 MERCEDES BENZ GROUP AG
  • US20240075870A1 patent drawing
  • US20240075870A1 patent drawing

AI summary

A method for operating an environment lighting device of a vehicle involves the environment lighting device emitting at least one light pattern into an environment of the vehicle by at least one lighting assembly depending on a control command. The environment lighting device is set to a standby mode by inputting a control action. The environment lighting device emits light when an authorized person nears the vehicle while the environment lighting device is in standby mode.