Vehicle Navigation Route Matching for Driver-Specific Guidance

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Solution Overview

Problem

Existing vehicle navigation systems struggle to consider driver characteristics when searching for recommended routes, leading to complicated user operations and potential inaccuracies in route designation.

Innovation Solution

A vehicle navigation system that includes a vehicle navigation apparatus and a mobile terminal, which utilize driving operation characteristic information to determine route coincidence and execute re-searching when necessary, ensuring recommended routes align with driver characteristics.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If the vehicle navigation apparatus uses traditional route searching methods, then the route search process is simple, but it cannot consider driver characteristics leading to reduced route recommendation accuracy

Engineering Contradiction:

Improveroute recommendation accuracyVSAvoidsystem complexity

Core Design Contradiction:

Measurement precisionVSDevice complexity

Solution Approach 1:

The patent introduces a mobile terminal as an intermediary component between the driver and the vehicle navigation apparatus. The mobile terminal collects driver characteristic information and performs route searching based on these characteristics, then transmits the results to the vehicle navigation apparatus. This intermediary approach enables consideration of driver characteristics without significantly complicating the core vehicle navigation system.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The mobile terminal serves multiple functions: it acts as a communication device for the driver, collects driver characteristic information, performs route searching based on these characteristics, and transmits results to the vehicle navigation apparatus. By utilizing the multi-functionality of the mobile terminal, the system achieves personalized route recommendation without adding dedicated complex hardware.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Measurement precision

If the system requires manual route designation by the user, then route accuracy can be improved, but user operations become complicated and time-consuming

Engineering Contradiction:

Improveroute designation accuracyVSAvoiduser operation simplicity

Core Design Contradiction:

Measurement precisionVSEase of operation

Solution Approach 1:

The system automatically collects driver characteristic information and performs route searching based on these characteristics without requiring manual route designation by the user. The mobile terminal automatically transmits driver characteristic information to the server, which then performs route searching and transmits results back to the vehicle navigation apparatus, eliminating the need for complicated user operations.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The system performs preliminary collection of driver characteristic information and preliminary route searching based on these characteristics before the user needs the route recommendation. The server stores driver characteristic information and performs route searching in advance, so when the user needs a route recommendation, the system can quickly provide accurate results without requiring manual route designation.

Inventive Principle:

Principle #10Preliminary action

3Speed

If the vehicle navigation apparatus processes all route searching functions locally, then response speed can be improved, but the apparatus requires higher computational resources and storage capacity

Engineering Contradiction:

Improveroute search response speedVSAvoidstorage capacity requirement

Core Design Contradiction:

SpeedVSQuantity of substance

Solution Approach 1:

The patent divides the route searching function into two segments: the mobile terminal collects and transmits driver characteristic information to the server, and the server performs the actual route searching based on these characteristics. This segmentation allows the vehicle navigation apparatus to maintain fast response speed while reducing its storage and computational requirements, as the server handles the complex route searching operations.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The server acts as an intermediary that handles the computationally intensive route searching operations. The vehicle navigation apparatus transmits driver characteristic information to the server, which then performs route searching and transmits results back. This intermediary approach enables fast response speed while reducing the storage and computational requirements of the vehicle navigation apparatus.

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentUS12601601B2Vehicle navigation apparatus and vehicle navigation system

Publication Date: 2026.04.14 SUBARU CORP

AI summary

A vehicle navigation apparatus includes an apparatus-side map storage, a driver characteristic information storage, a communicator, a route searching unit, and a coincidence determination unit. The communicator transmits driving operation characteristic information of a driver to a mobile terminal, and receives, from the mobile terminal, recommended route information retrieved based on the driving operation characteristic information of the driver. The route searching unit executes searching for route information, based on apparatus-side map information. The coincidence determination unit determines a coincidence between the recommended route information retrieved based on the driving operation characteristic information of the driver and the route information based on the apparatus-side map information. The route searching unit executes re-searching for route information, when the coincidence determination unit determines that the coincidence is less than a predetermined coincidence.