Vehicle Accessory Adaptation via RFID Detection

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Solution Overview

Problem

Vehicle accessories such as trailers, bike racks, and roof boxes alter a vehicle's handling, dimensions, and systems, leading to issues like damage during parking, incorrect sensor readings, and increased fuel consumption, which existing technologies do not adequately address.

Innovation Solution

A method and apparatus that read information from memory units attached to vehicle accessories using wireless transceivers, modifying vehicle functions such as display outputs, parking assist systems, and drive controls to adapt to the presence of accessories, including adjusting engine management and providing driver warnings.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If vehicle accessories are attached to the vehicle, then the vehicle can perform additional functions or carry more cargo, but the vehicle handling and sensor accuracy deteriorate

Engineering Contradiction:
Improvevehicle accessory compatibilityVSAvoidsensor accuracy
Core Design Contradiction:
Adaptability or versatilityVSMeasurement precision

Solution Approach 1:

The system performs preliminary detection of accessories using RFID tags before the vehicle operates. The control unit reads accessory information in advance and pre-adjusts vehicle functions, preventing sensor inaccuracies from affecting operation. This advance preparation resolves the contradiction by ensuring the vehicle is already adapted when the accessory is attached.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system continuously monitors accessory presence via RFID tags and provides real-time feedback to the control unit. When an accessory is detected, the system automatically adjusts vehicle functions and notifies the driver. This closed-loop feedback mechanism ensures sensor accuracy is maintained by dynamically adapting to accessory configurations.

Inventive Principle:
Principle #23Feedback

2Quantity of substance

If vehicle accessories are attached to the vehicle, then the cargo capacity increases, but the risk of damage during parking and operation increases

Engineering Contradiction:
Improvecargo capacityVSAvoiddamage risk
Core Design Contradiction:
Quantity of substanceVSObject-affected harmful factors

Solution Approach 1:

The system detects accessories in advance using RFID tags and issues warnings to the driver before parking or maneuvering operations. The control unit prepares the vehicle by adjusting functions and notifying the driver of potential damage risks, allowing preventive action before harmful events occur.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The RFID tag system acts as an intermediary between the accessory and the vehicle's control system. It provides a communication bridge that allows the vehicle to awareness of accessory presence and characteristics, enabling the control unit to mediate between cargo capacity needs and damage prevention requirements through automatic adjustments and driver alerts.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Adaptability or versatility

If vehicle accessories are attached to the vehicle, then the functionality is enhanced, but the fuel consumption increases

Engineering Contradiction:
Improvevehicle functionalityVSAvoidfuel consumption
Core Design Contradiction:
Adaptability or versatilityVSUse of energy by moving object

Solution Approach 1:

The system dynamically adjusts vehicle functions based on detected accessory characteristics from RFID tags. The control unit modifies engine management, transmission control, and other energy-consuming systems in real-time according to the attached accessory, optimizing fuel consumption while maintaining enhanced functionality. This dynamic adaptation resolves the contradiction by making the vehicle's energy usage flexible rather than fixed.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system changes operational parameters such as engine power output, transmission gear selection, and driving mode based on accessory information read from RFID tags. By adjusting these parameters dynamically, the vehicle maintains enhanced functionality from accessories while optimizing fuel consumption according to the actual load and aerodynamic changes caused by the accessory.

Inventive Principle:
Principle #35Parameter changes

4Difficulty of detecting and measuring

If traditional sensor devices are used to detect accessories, then the detection capability is limited, but the device complexity increases

Engineering Contradiction:
Improveaccessory detection capabilityVSAvoiddetection system complexity
Core Design Contradiction:
Difficulty of detecting and measuringVSDevice complexity

Solution Approach 1:

The system replaces complex mechanical sensor devices with RFID electromagnetic field-based detection. Instead of using physical sensors that require direct contact or proximity to measure accessory characteristics, the RFID system uses electromagnetic fields to wirelessly read accessory information from tags, significantly simplifying the detection system while improving capability.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The RFID tag serves as an intermediary that carries accessory information and enables communication between the accessory and the vehicle's control unit without requiring direct physical sensing. This intermediary approach simplifies the detection system by eliminating the need for complex sensor arrays while providing comprehensive accessory information through wireless reading.

Inventive Principle:
Principle #24Intermediary (Mediator)

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

Enables the vehicle to adapt to accessories by modifying its behavior and informing the driver, reducing the risk of damage and improving fuel efficiency, while enhancing safety and handling.

Implementation Method 1

reading information about a vehicle accessory stored in a memory attached to the vehicle accessory

Methodology Applied
Scientific EffectRFID (Radio Frequency Identification): Electromagnetic Induction

Data Source

PatentEP2679463B1Adaptation of a vehicle function to vehicle accessories
Publication Date: 2019.05.15 VOLKSWAGEN AG
  • EP2679463B1 patent drawingFigure 1~3
  • EP2679463B1 patent drawingFigure 4~5

AI summary

The method involves transmitting a request for information from a storage unit assigned to vehicle accessories. The information is received from the storage unit. The vehicle functions are modified based on said information. The presence of vehicle accessory is determined, if no vehicle information is received. The storage unit has an Radio frequency identification (RFID) chip. Independent claims are included for following: (1) an apparatus for a vehicle has a transceiver configured to query information from a storage unit; and (2) a vehicle accessory has a storage unit that stores information about the accessory.