Drop-Off Assistance Using Rear Vehicle V2X Object Detection
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Solution Overview
Problem
Existing drop-off assistance devices require multiple external sensors to function effectively, which is impractical and costly.
Innovation Solution
A drop-off assistance system utilizing a sensor, communication device, and notification device, with a controller that communicates with a rear vehicle to detect and notify of approaching objects, eliminating the need for multiple external sensors on the host vehicle.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple external sensors are used to detect approaching objects, then detection reliability is improved, but device complexity and cost increase
Solution Approach 1:
The patent combines the detection functions of the host vehicle and rear vehicle into a unified system. The rear vehicle's sensor detects approaching objects that would be blocked from the host vehicle's sensor, and both detection results are integrated through V2X communication to provide comprehensive monitoring coverage without adding multiple sensors to the host vehicle.
Solution Approach 2:
The patent introduces V2X communication as an intermediary to transfer detection information from the rear vehicle to the host vehicle. This allows the host vehicle to access detection data from the rear vehicle's sensor without physically installing additional sensors, effectively extending the detection range around the host vehicle.
2Reliability
If multiple external sensors are installed on the host vehicle, then detection coverage is improved, but manufacturing cost increases
Solution Approach 1:
The rear vehicle serves itself by using its own sensor to detect approaching objects and then shares this detection information with the host vehicle through V2X communication. This eliminates the need for the host vehicle to invest in additional sensors, as the rear vehicle's sensing capability is leveraged to enhance the host vehicle's detection coverage.
Solution Approach 2:
The rear vehicle's sensor serves dual purposes: it monitors the environment for the rear vehicle itself and simultaneously provides detection data for the host vehicle's drop-off assistance system. This multi-functional use of the sensor reduces the total number of sensors needed across the vehicle system.
3Speed
If the host vehicle uses its own sensor to detect approaching objects, then response speed is improved, but detection coverage is limited by blocking objects
Solution Approach 1:
The patent extends the detection coverage from a single-point perspective (host vehicle's sensor) to a multi-point spatial distribution by incorporating the rear vehicle's sensor data. This creates a three-dimensional detection network where sensors at different positions monitor different zones, eliminating blind spots caused by blocking objects.
Data Source
AI summary
The drop-off assistance device includes: a sensor for detecting an object behind the vehicle; a communication device capable of communicating with another vehicle; a notification device for notifying an occupant of the vehicle; a sensor; a communication device; and a controller connected to the notification device, wherein the controller detects a rear vehicle located behind the vehicle based on a detection result of the sensor at the time of parking and stopping the vehicle, establishes communication with the rear vehicle in response to the detection of the rear vehicle, and causes the notification device to notify the presence of the approaching object in response to the communication device receiving the detection of the approaching object to be notified from the rear vehicle.