Lane Keeping Apparatus Trajectory Correction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing driving assistance systems do not sufficiently reduce driver anxiety when encountering a parallel running vehicle, as they rely solely on steering input corrections.
Innovation Solution
A driving assistance apparatus that estimates the trajectory of a parallel running vehicle and corrects the target course of the own vehicle based on this trajectory, using sensors and electronic control units to adjust for lateral speed, running load, and movement energy, thereby reducing driver anxiety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the target course is corrected based on the driver's steering input, then the vehicle can maintain lane position, but the driver's anxiety with respect to the parallel running vehicle is not sufficiently reduced
Solution Approach 1:
The system performs preliminary estimation of the parallel running vehicle's trajectory before the driver can react, and proactively corrects the target course in advance. The ECU estimates where the other vehicle will be and adjusts the target course beforehand, rather than merely reacting to the driver's steering input after the fact.
Solution Approach 2:
The patent introduces an intermediary estimation process between the detection of the parallel running vehicle and the correction of the target course. The ECU acts as a mediator that processes the raw sensor data, estimates the other vehicle's future position, and translates this into appropriate target course adjustments, rather than directly coupling driver input with course correction.
2Ease of operation
If the target course is corrected to account for the parallel running vehicle's trajectory, then driver anxiety is reduced, but the system requires more complex estimation and calculation capabilities
Solution Approach 1:
The system continuously monitors the parallel running vehicle's position and adjusts the target course dynamically based on real-time feedback. The ECU repeatedly estimates the other vehicle's trajectory and modifies the target course accordingly, creating a closed-loop control system that adapts to changing conditions rather than using a fixed correction rule.
Solution Approach 2:
The patent changes the parameters used for target course determination from simple lane markings to include dynamic parameters such as the parallel running vehicle's position, speed, and predicted trajectory. By incorporating these additional variables, the system adapts the target course based on multiple changing parameters rather than a single static reference.
Data Source
AI summary
A driving assistance apparatus is a lane keeping apparatus that performs a vehicle driving assistance so that a vehicle runs along a set target course, and includes a vehicle control ECU; a camera; an image ECU; a steering torque sensor; and a steering torque applying unit. The vehicle control ECU includes a parallel running vehicle trajectory estimating unit which estimates the trajectory of the parallel running vehicle running on the adjacent lane and a target course correcting unit which corrects the target course of the own vehicle on the basis of the estimation trajectory of the parallel running vehicle. Since the target course of the own vehicle is corrected on the basis of the estimated trajectory of the parallel running vehicle, it is possible to sufficiently reduce the driver's anxiety with respect to the parallel running vehicle.