Route-Based Vehicle Travel Data Estimation Without Onboard Sensors
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Solution Overview
Problem
Existing methods for estimating vehicle travel data, such as tire deterioration, require mounting sensors on vehicles, making it difficult to acquire necessary data.
Innovation Solution
A vehicle travel data estimation apparatus that estimates travel data by acquiring information on departure and destination points, estimating a travel route, and calculating speed, acceleration, and tire wear based on this information without the need for sensors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If sensors are mounted on the vehicle to acquire travel data, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The patent creates a virtual copy of travel data by simulating sensor measurements through route information. Instead of physically mounting sensors on the vehicle, the system acquires route data (departure point, destination point, travel route) and generates corresponding travel data (speed, acceleration, travel distance) through calculation, effectively copying the function of physical sensors without the hardware complexity
Solution Approach 2:
The patent replaces the mechanical sensor-based measurement system with an information processing system. Rather than using physical sensors to detect speed, acceleration, and position, the system uses route information and mathematical calculations to derive the same travel data, substituting mechanical detection with computational generation
2Reliability
If sensors are mounted on the vehicle to acquire travel data, then reliability of data collection is improved, but ease of operation deteriorates
Solution Approach 1:
The system copies the essential function of sensor-based data collection by generating travel data from route information. This approach maintains data reliability for tire wear estimation while eliminating the need for complex sensor installation and calibration, significantly improving ease of operation
Solution Approach 2:
The patent introduces route information as an intermediary between the vehicle and the travel data estimation system. Instead of directly measuring physical quantities with sensors, the system uses route data (which is easily obtainable from navigation systems) as a mediator to calculate travel parameters, simplifying the overall system setup
Data Source
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AI summary
A vehicle travel data estimation apparatus (10) includes a controller (15) configured to acquire information on a departure point and information on a destination point as information relating to travel of a vehicle (2), estimate a travel route of the vehicle (2) based on the information on the departure point and the information on the destination point, and estimate travel data on the vehicle (2) during travel on the travel route based on the travel route estimated. The travel data includes data on at least one of speed, acceleration, and travel distance.