Parking Assist Control With Dynamic Object Margins
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing parking assist systems inaccurately park vehicles when the detected parking space size is narrower than the actual size, leading to potential vehicle contact with peripheral objects.
Innovation Solution
A parking assist apparatus that provides a margin to the detected size of peripheral objects in the parking space to account for potential size reductions, adjusting the parking route based on real-time sensor data to ensure accurate parking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the parking assist control uses the newly detected size of the parking space when it is detected to be narrower than the already detected size, then the parking space size reflects the latest detection result, but the vehicle may not be accurately parked at the target parking position
Solution Approach 1:
The control unit applies a predetermined margin to the size of peripheral objects in the direction where the parking space is narrowed, proactively compensating for potential detection inaccuracies before they cause parking position errors. This preliminary adjustment prevents the vehicle from being positioned inaccurately when the parking space size is detected to be narrower than the actual size.
Solution Approach 2:
A predetermined margin is provided as a buffer to the detected size of peripheral objects, creating a safety cushion that absorbs potential detection errors. This cushioning mechanism ensures that even if the detection accuracy is high, the system maintains reliability by accounting for possible variations in detection results.
2Reliability
If the parking assist control continuously uses the margin-provided size of peripheral objects, then the vehicle can be accurately positioned in narrowed parking spaces, but the vehicle may stop due to increased possibility of contact with peripheral objects
Solution Approach 1:
The control unit dynamically adjusts the size of peripheral objects based on real-time detection results. When a newly detected peripheral object size is larger than the previously margin-adjusted size, the control unit removes the margin adjustment and uses the newly detected size. This dynamic adaptation allows the system to maintain accurate positioning when needed while avoiding unnecessary margin adjustments that could cause the vehicle to stop due to perceived contact risks.
Solution Approach 2:
The control unit continuously monitors detection results and compares newly detected peripheral object sizes with previously used sizes. Based on this feedback, the system decides whether to maintain or remove the predetermined margin adjustment, ensuring optimal balance between positioning accuracy and avoiding false contact warnings.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enhances the accuracy of parking vehicles by reducing the likelihood of contact with peripheral objects and ensuring precise positioning in narrower spaces.
Implementation Method 1
a sensor (24A-24D, 26A-26D, 28A and 28B, 30A and 30B) for detecting an object by receiving a reflected wave from which a transmitted wave is reflected by the object
Data Source
AI summary
The parking assist apparatus includes a sensor that detects an object by receiving a reflected wave reflected by the object by a transmitted wave, and a controller that executes parking assist control for parking the vehicle in a parking space set based on a detection result of the sensor. The controller provides a predetermined margin to a size of a peripheral object, which is an object detected by the sensor and exists around the parking space, in a provisional direction in which the parking space is narrowed. The controller executes parking assist control using a size of the peripheral object to which the margin is provided. When the size of the peripheral object newly detected by the sensor becomes larger than the size to which the margin is provided, the controller executes parking assist control using the size of the peripheral object newly detected by the sensor.