Vehicle Travel Control for Rapid Post-Collision Path Estimation
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Solution Overview
Problem
Existing travel control apparatuses for vehicles face challenges in quickly estimating a travel route after a primary collision due to complex arithmetic processing, which increases costs and delays response time, and are inadequate for high-speed travel scenarios.
Innovation Solution
A travel control apparatus utilizing a camera unit with stereo cameras, image processing, and radar sensors to recognize the surrounding environment, calculate collision time, and estimate a travel route post-collision, enabling quicker and simpler route estimation without complex calculations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If complex arithmetic processing is used to estimate travel route after collision, then estimation accuracy is improved, but response time increases and device complexity increases
Solution Approach 1:
The patent segments the estimation process into distinct modules: collision time calculation unit, collision position calculation unit, and post-collision travel route estimation unit. Each module handles a specific aspect of the estimation, allowing parallel processing and reducing overall computation time while maintaining accuracy.
Solution Approach 2:
The system performs preliminary calculations of collision time and collision position before estimating the post-collision travel route. By pre-calculating these intermediate values using sensor data and vehicle parameters, the system reduces the computational burden during the final route estimation phase, enabling faster response.
2Measurement precision
If complex arithmetic processing is used to estimate travel route after collision, then estimation accuracy is improved, but device complexity and cost increase
Solution Approach 1:
The patent employs a multi-functional estimation system that uses the same sensor data and calculation framework for multiple purposes: collision detection, collision time estimation, collision position estimation, and post-collision route prediction. This universal approach avoids duplicating hardware and software components for each function, reducing overall device complexity.
Solution Approach 2:
The system introduces intermediate calculation units that process sensor data and vehicle parameters to generate collision time and position estimates. These intermediaries serve as mediators between raw sensor inputs and the final route estimation, simplifying the overall computational architecture by breaking down complex calculations into manageable stages.
3Reliability
If conventional travel control apparatus is used, then basic collision detection is achieved, but rapid response for high-speed travel scenarios is insufficient
Solution Approach 1:
The patent implements continuous periodic monitoring of the surrounding environment using sensor devices, calculating collision time and position at regular intervals. This periodic action ensures that the system is always prepared with up-to-date collision predictions, enabling rapid response even in high-speed scenarios where conditions change quickly.
Solution Approach 2:
The system incorporates feedback mechanisms where the estimated collision time and position are continuously updated based on real-time sensor data and vehicle state changes. This feedback loop allows the system to adapt to changing conditions and maintain accurate predictions, enabling faster and more reliable response in dynamic high-speed environments.
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
The apparatus provides rapid and efficient estimation of post-collision travel routes, reducing the risk of secondary collisions by integrating stereo cameras and radar sensors for real-time environmental recognition and collision prediction.
Implementation Method 1
a camera unit 10 including a stereo camera 11
Implementation Method 2
utilizing a camera unit with stereo cameras, image processing, and radar sensors
Data Source
AI summary
A travel control apparatus for a vehicle includes a surrounding environment recognition device, a collision time calculator, a collision object estimator, and an after-collision travel range estimator. The surrounding environment recognition device includes a recognizer configured to recognize a surrounding environment of the vehicle, and a collision object recognizer configured to recognize an object that has a possibility to come into collision with the vehicle in the recognized surrounding environment. The collision time calculator is configured to calculate a predicted time to the collision between the vehicle and the object. The collision object estimator is configured to, based on the predicted time to the collision, estimate a travel route of the object and a collision position on the vehicle where the object collides with the vehicle. The after-collision travel range estimator is configured to estimate a travel range of the vehicle after the collision based on the estimated collision position.