Vehicle Control Device Dynamic Range Adjustment
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Solution Overview
Problem
Existing vehicle control technologies fail to precisely control vehicle travel based on surrounding situations, leading to potential inaccuracies in lane changes and interactions with adjacent vehicles.
Innovation Solution
A vehicle control device and method that utilize a recognizer to assess the surrounding situation and an action controller to manage vehicle positioning relative to adjacent vehicles, adjusting speed and lane changes based on distance and predicted intentions of other vehicles to ensure precise control and prevent unintended lane changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If automated driving control is implemented using basic destination-based determination, then automated stopping or path-following can be achieved, but travel control precision in accordance with surrounding situations deteriorates
Solution Approach 1:
The patent applies dynamics by making the control ranges (first range and second range) variable rather than fixed. The action controller dynamically adjusts these ranges based on the distance between the first and second vehicles detected by the recognizer. When the distance is large, the ranges are expanded to allow more flexible lane changes; when the distance is small, the ranges are contracted to prevent unsafe lane changes. This dynamic adaptation enables precise travel control that responds to changing surrounding situations.
Solution Approach 2:
The patent changes the parameter of control range size based on the distance parameter between vehicles. The action controller modifies the spatial parameters (range dimensions) in response to the distance parameter detected by the recognizer. This parameter change approach allows the system to maintain high automation while achieving precise control by adapting control boundaries to the actual surrounding situation.
2Productivity
If lane change control is performed without considering distance to adjacent vehicles, then lane changes can be executed quickly, but control accuracy and safety deteriorate
Solution Approach 1:
The patent applies preliminary action by having the recognizer detect and measure the distance to the first and second vehicles before the lane change is executed. The action controller uses this pre-acquired distance information to determine appropriate control ranges in advance of the lane change maneuver. This preliminary measurement and planning enables the system to execute lane changes both quickly and with high positioning accuracy, as the safe boundaries are already established before the maneuver begins.
Solution Approach 2:
The patent implements feedback by continuously monitoring the distance between the own vehicle and adjacent vehicles, and using this information to adjust the control ranges. The recognizer provides ongoing feedback about the surrounding situation, and the action controller adjusts the first and second ranges based on this feedback. This closed-loop control enables rapid lane changes while maintaining high accuracy and safety by adapting to real-time conditions.
Data Source
AI summary
A vehicle control device includes: a recognizer configured to recognize a surrounding situation of a vehicle; and an action controller configured to control an action of the vehicle. The action controller determines a range in which the vehicle is located relative to a first vehicle located on a lateral side of the vehicle recognized by the recognizer and a second vehicle located on a side behind the first vehicle in a longitudinal direction of a road by the recognizer based on a distance between the first and second vehicles when a course of the vehicle is changed to the lateral side.