Vehicle Driving Controller Altitude Detection
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Solution Overview
Problem
Advanced Smart Cruise Control (ASCC) systems may fail to detect preceding vehicles accurately when there is an altitude difference, leading to incorrect speed control and potential accidents due to incorrect vehicle recognition.
Innovation Solution
A vehicle driving controller that uses a radar sensor to detect altitude differences by analyzing power spectrum data, generates a virtual layer to correct power spectrum readings, and adjusts vehicle speed control based on the corrected data to prevent accidents.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If ASCC uses radar to detect preceding vehicle, then detection capability is improved, but detection accuracy deteriorates when altitude difference exists
Solution Approach 1:
The patent introduces a camera as an intermediary device to detect altitude differences between the host vehicle and preceding vehicle. The camera captures images of the preceding vehicle, and image processing determines whether the vehicle is positioned on an uphill or downhill slope. This intermediary detection mechanism compensates for the radar's inability to accurately detect vehicles with altitude differences, thereby resolving the contradiction between maintaining detection capability and improving detection accuracy.
2Ease of operation
If ASCC performs speed-oriented control when no preceding vehicle is recognized, then control simplicity is improved, but safety deteriorates due to potential incorrect determination
Solution Approach 1:
The camera serves as an intermediary verification tool that checks whether the host vehicle and preceding vehicle are on the same horizontal plane. When the camera detects an altitude difference, the system correctly identifies the preceding vehicle even if radar initially fails to detect it, preventing incorrect speed-oriented control and maintaining safety without significantly complicating the control logic.
Solution Approach 2:
The system implements feedback by continuously monitoring altitude differences through camera images. When an altitude difference is detected, the system adjusts its determination of preceding vehicle presence accordingly. This feedback mechanism ensures that speed-oriented control is only applied when appropriate, preventing safety issues while maintaining relatively simple control operations.
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
Minimizes incorrect vehicle recognition and prevents accidents by accurately determining altitude differences and adjusting speed control accordingly, ensuring safe vehicle spacing.
Implementation Method 1
The ASCC recognizes the preceding vehicle using a radar of the host vehicle
Data Source
AI summary
A vehicle driving controller includes a determination device that identifies a change in location of a reference interval. The reference interval has a certain magnitude value in power spectrum data received from a radar sensor, which detects a preceding vehicle in front of a host vehicle and determines whether there occurs an altitude difference between the host vehicle and the preceding vehicle based on the change in the location of the reference interval. The driving controller includes a correction device that corrects a power spectrum using a virtual layer when it is determined that the altitude difference exists between the host vehicle and the preceding vehicle. The driving controller includes a controller that controls the driving of the host vehicle based on the corrected spectrum.