Vehicle Speed Bump Detection Using Multi-Parameter Storage
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Solution Overview
Problem
Existing methods for detecting and controlling speed bumps in vehicles only consider positional information, failing to account for the varying forms of speed bumps, which hinders appropriate driving techniques.
Innovation Solution
A system that stores positional information of speed bumps and vehicle speed information, using a driving knowledge extraction system and vehicle travel control system to determine accurate speed bump detection and control vehicle travel based on the form of the speed bump, incorporating sensors for wheel speed, vehicle speed, and attitude, along with navigation and object detection devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If only positional information of speed bumps is stored, then the storage system is simple, but appropriate driving cannot be performed in accordance with the forms of speed bumps
Solution Approach 1:
The patent applies parameter changes by expanding the speed bump information from simple positional data to include multiple parameters: positional information, vehicle speed information, and acceleration information. This enables the system to adapt to different speed bump forms (sharp vs. long) by selecting appropriate parameter combinations for control decisions.
Solution Approach 2:
The patent transitions from one-dimensional positional information to multi-dimensional information storage by adding vehicle speed and acceleration dimensions. This dimensional expansion allows the system to characterize different speed bump forms comprehensively and make nuanced driving adjustments.
2Reliability
If only positional information is used for speed bump detection, then the detection system is simple, but misclassification of road depressions or obstacles as speed bumps occurs
Solution Approach 1:
The patent implements feedback mechanisms by continuously monitoring wheel speed, vehicle speed, and acceleration data during speed bump passage. The system uses this feedback to verify detections and distinguish true speed bumps from false targets like road depressions or obstacles, thereby improving detection reliability.
Solution Approach 2:
The patent applies preliminary action by storing and analyzing multiple parameters (positional information, vehicle speed, acceleration) before making speed bump determination. This preliminary data collection and analysis enables more accurate classification and reduces misclassification errors.
3Reliability
If vehicle speed is not controlled according to speed bump form, then the control system is simple, but driving safety and efficiency are reduced
Solution Approach 1:
The patent applies dynamics by implementing dynamic vehicle speed control that adapts to different speed bump forms. The control system adjusts vehicle speed based on real-time analysis of positional information, vehicle speed, and acceleration data, enabling safe and efficient passage over various speed bump types rather than using a fixed control strategy.
Data Source
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AI summary
The present disclosure includes determining whether or not a vehicle has passed over a speed bump on the basis of a traveling state of the vehicle and specifying positional information of the speed bump and vehicle speed information when passing over the speed bump as speed bump information from a travel history that includes a determination result as to whether or not the vehicle has passed over the speed bump, the position of the vehicle, and the traveling state of the vehicle.