Automatic Vehicle Route Updating for Behavior Model Calibration
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Solution Overview
Problem
Existing vehicle movement control systems cause vehicles to move along update paths different from the normally-set target paths for updating vehicle behavior model parameters, leading to uneasy experiences for occupants.
Innovation Solution
A vehicle movement control apparatus comprising sensors and an electronic control unit that detects turning, acceleration, and deceleration characteristics, sets an update movement route for updating vehicle behavior characteristic data, and executes automatic movement control to update these characteristics without driver operation, ensuring minimal deviation from optimal routes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the vehicle moves along an update path different from the normally-set target path to update vehicle behavior model parameters, then the vehicle behavior characteristics can be updated accurately, but the occupants including the driver feel uneasy
Solution Approach 1:
The system performs preliminary assessment by comparing actual vehicle behavior with predicted behavior from the behavior model before initiating update maneuvers. This allows the system to determine in advance whether update paths are necessary and plan them accordingly, rather than randomly deviating from target paths
Solution Approach 2:
The system continuously monitors actual vehicle behavior and compares it with predicted behavior from the behavior model. Based on this feedback, the system determines when and where to execute update maneuvers, and adjusts the update path selection to minimize occupant discomfort while ensuring accurate behavior characterization
2Measurement precision
If the vehicle frequently executes automatic movement control for updating behavior characteristics, then the vehicle behavior data becomes more accurate, but the control system complexity increases
Solution Approach 1:
The system executes update maneuvers periodically or at predetermined intervals rather than continuously. The control unit determines specific update timing based on accumulated data needs and system state, performing behavior model updates at optimal moments during normal operation
Solution Approach 2:
The system uses the vehicle's own normal operation and existing sensor data to perform self-updating of behavior characteristics. The automatic movement control leverages the vehicle's inherent dynamics and onboard sensors without requiring external testing equipment or complex additional hardware
Data Source
AI summary
The vehicle movement control apparatus of the disclosure sets an update movement route as a target movement route when an update condition is satisfied. The apparatus acquires a turning characteristic, an acceleration characteristic, and a deceleration characteristic of a vehicle while executing an automatic movement control to cause the vehicle to move along the update movement route. The apparatus updates vehicle behavior characteristic data so as to represent actual vehicle behavior characteristics, based on the acquired turning characteristics, the acquired acceleration characteristic, and the acquired deceleration characteristic.