Vehicle Route Estimation Control Without Map Data
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Solution Overview
Problem
Existing vehicle control technologies rely on map data and cannot estimate a scheduled traveling route without it, and they fail to accurately predict vehicle passage at specific points due to limited use of distance information.
Innovation Solution
A control device for vehicles that acquires positional and turning information to estimate a scheduled traveling route on a two-dimensional plane without map data, using a starting point specification, measurement starting point setting, and trajectory estimation to record and predict routes based on turning amounts and events like battery capacity exceeding predetermined values.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If map data is used to control vehicle routes, then route estimation accuracy is improved, but system complexity and data requirements increase
Solution Approach 1:
The invention extracts and removes the dependency on map data from the route estimation system. Instead of using external map information, the system only utilizes onboard sensors (positional information acquisition part and turning amount acquisition part) to estimate routes, thereby simplifying the system while maintaining estimation capability
Solution Approach 2:
The vehicle estimation system serves itself by using only its own generated data (positional information and turning amounts from onboard sensors) to estimate its route, without requiring external map data. This self-service approach reduces system complexity and data requirements while enabling route estimation
2Ease of operation
If only distance information is used to predict vehicle passage, then system simplicity is maintained, but prediction accuracy deteriorates
Solution Approach 1:
The invention merges two types of information (positional information and turning amount information) that are both obtained from onboard sensors into a unified route estimation approach. This combination maintains system simplicity while significantly improving prediction accuracy compared to using distance information alone
3Adaptability or versatility
If onboard sensor data only is used for route estimation, then data requirements are reduced, but estimation reliability may worsen without map validation
Solution Approach 1:
The system continuously accumulates and stores turning amount data over time, creating a feedback mechanism where historical sensor data is used to improve and validate route estimations. This temporal feedback enhances reliability by providing more data points for verification without requiring external map validation
Data Source
AI summary
A control device for a vehicle is a control device provided on a vehicle which includes a positional information acquisition part configured to acquire positional information of the vehicle and a turning amount acquisition part configured to acquire a turning amount of the vehicle, the control device for a vehicle including a starting point specifying part configured to specify a departure place of the vehicle on the basis of the positional information, a measurement starting point setting part configured to set a measurement starting point of a turning amount of the vehicle on the basis of the positional information, a traveling route recording part configured to record the measurement starting point and the turning amount of the vehicle, and a scheduled route estimating part configured to estimate a scheduled traveling route of the vehicle on the basis of the recorded measurement starting point and the recorded turning amount.